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Database: UniProt
Entry: Q03497
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Original site: Q03497 
ID   STE20_YEAST             Reviewed;         939 AA.
AC   Q03497; D3DKQ8;
DT   01-OCT-1993, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1993, sequence version 1.
DT   27-MAR-2024, entry version 231.
DE   RecName: Full=Serine/threonine-protein kinase STE20;
DE            EC=2.7.11.1;
GN   Name=STE20; OrderedLocusNames=YHL007C;
OS   Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC   Saccharomycetales; Saccharomycetaceae; Saccharomyces.
OX   NCBI_TaxID=559292;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND FUNCTION.
RX   PubMed=1464311; DOI=10.1002/j.1460-2075.1992.tb05587.x;
RA   Leberer E., Dignard D., Harcus D., Thomas D.Y., Whiteway M.;
RT   "The protein kinase homologue Ste20p is required to link the yeast
RT   pheromone response G-protein beta gamma subunits to downstream signalling
RT   components.";
RL   EMBO J. 11:4815-4824(1992).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND FUNCTION.
RX   PubMed=8421676; DOI=10.1073/pnas.90.2.452;
RA   Ramer S.W., Davis R.W.;
RT   "A dominant truncation allele identifies a gene, STE20, that encodes a
RT   putative protein kinase necessary for mating in Saccharomyces cerevisiae.";
RL   Proc. Natl. Acad. Sci. U.S.A. 90:452-456(1993).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 204508 / S288c;
RX   PubMed=8091229; DOI=10.1126/science.8091229;
RA   Johnston M., Andrews S., Brinkman R., Cooper J., Ding H., Dover J., Du Z.,
RA   Favello A., Fulton L., Gattung S., Geisel C., Kirsten J., Kucaba T.,
RA   Hillier L.W., Jier M., Johnston L., Langston Y., Latreille P., Louis E.J.,
RA   Macri C., Mardis E., Menezes S., Mouser L., Nhan M., Rifkin L., Riles L.,
RA   St Peter H., Trevaskis E., Vaughan K., Vignati D., Wilcox L., Wohldman P.,
RA   Waterston R., Wilson R., Vaudin M.;
RT   "Complete nucleotide sequence of Saccharomyces cerevisiae chromosome
RT   VIII.";
RL   Science 265:2077-2082(1994).
RN   [4]
RP   GENOME REANNOTATION.
RC   STRAIN=ATCC 204508 / S288c;
RX   PubMed=24374639; DOI=10.1534/g3.113.008995;
RA   Engel S.R., Dietrich F.S., Fisk D.G., Binkley G., Balakrishnan R.,
RA   Costanzo M.C., Dwight S.S., Hitz B.C., Karra K., Nash R.S., Weng S.,
RA   Wong E.D., Lloyd P., Skrzypek M.S., Miyasato S.R., Simison M., Cherry J.M.;
RT   "The reference genome sequence of Saccharomyces cerevisiae: Then and now.";
RL   G3 (Bethesda) 4:389-398(2014).
RN   [5]
RP   PROTEIN SEQUENCE OF 164-169; 583-591 AND 408-431, AND PHOSPHORYLATION AT
RP   SER-169; SER-585 AND SER-418.
RX   PubMed=16428446; DOI=10.1128/mcb.26.3.912-928.2006;
RA   Truckses D.M., Bloomekatz J.E., Thorner J.;
RT   "The RA domain of Ste50 adaptor protein is required for delivery of Ste11
RT   to the plasma membrane in the filamentous growth signaling pathway of the
RT   yeast Saccharomyces cerevisiae.";
RL   Mol. Cell. Biol. 26:912-928(2006).
RN   [6]
RP   AUTOPHOSPHORYLATION, FUNCTION IN PHOSPHORYLATION OF STE11, AND MUTAGENESIS
RP   OF LYS-649 AND THR-777.
RX   PubMed=7608157; DOI=10.1074/jbc.270.27.15984;
RA   Wu C., Whiteway M., Thomas D.Y., Leberer E.;
RT   "Molecular characterization of Ste20p, a potential mitogen-activated
RT   protein or extracellular signal-regulated kinase kinase (MEK) kinase kinase
RT   from Saccharomyces cerevisiae.";
RL   J. Biol. Chem. 270:15984-15992(1995).
RN   [7]
RP   FUNCTION, INTERACTION WITH CDC42, AND SUBCELLULAR LOCATION.
RX   PubMed=9003780; DOI=10.1002/j.1460-2075.1996.tb01096.x;
RA   Peter M., Neiman A.M., Park H.-O., van Lohuizen M., Herskowitz I.;
RT   "Functional analysis of the interaction between the small GTP binding
RT   protein Cdc42 and the Ste20 protein kinase in yeast.";
RL   EMBO J. 15:7046-7059(1996).
RN   [8]
RP   FUNCTION.
RX   PubMed=8722766; DOI=10.1093/genetics/143.1.103;
RA   Akada R., Kallal L., Johnson D.I., Kurjan J.;
RT   "Genetic relationships between the G protein beta gamma complex, Ste5p,
RT   Ste20p and Cdc42p: investigation of effector roles in the yeast pheromone
RT   response pathway.";
RL   Genetics 143:103-117(1996).
RN   [9]
RP   FUNCTION.
RX   PubMed=8643578; DOI=10.1073/pnas.93.11.5352;
RA   Moesch H.-U., Roberts R.L., Fink G.R.;
RT   "Ras2 signals via the Cdc42/Ste20/mitogen-activated protein kinase module
RT   to induce filamentous growth in Saccharomyces cerevisiae.";
RL   Proc. Natl. Acad. Sci. U.S.A. 93:5352-5356(1996).
RN   [10]
RP   INTERACTION WITH BMH1 AND BMH2.
RX   PubMed=9215628; DOI=10.1016/s0092-8674(00)80293-7;
RA   Roberts R.L., Moesch H.-U., Fink G.R.;
RT   "14-3-3 proteins are essential for RAS/MAPK cascade signaling during
RT   pseudohyphal development in S. cerevisiae.";
RL   Cell 89:1055-1065(1997).
RN   [11]
RP   FUNCTION, INTERACTION WITH CDC42, AND SUBCELLULAR LOCATION.
RX   PubMed=9009270; DOI=10.1093/emboj/16.1.83;
RA   Leberer E., Wu C., Leeuw T., Fourest-Lieuvin A., Segall J.E., Thomas D.Y.;
RT   "Functional characterization of the Cdc42p binding domain of yeast Ste20p
RT   protein kinase.";
RL   EMBO J. 16:83-97(1997).
RN   [12]
RP   FUNCTION IN PHOSPHORYLATION OF MYO3.
RX   PubMed=9388196; DOI=10.1074/jbc.272.49.30623;
RA   Wu C., Lytvyn V., Thomas D.Y., Leberer E.;
RT   "The phosphorylation site for Ste20p-like protein kinases is essential for
RT   the function of myosin-I in yeast.";
RL   J. Biol. Chem. 272:30623-30626(1997).
RN   [13]
RP   FUNCTION.
RX   PubMed=9742399; DOI=10.1016/s0960-9822(98)00398-4;
RA   Eby J.J., Holly S.P., van Drogen F., Grishin A.V., Peter M., Drubin D.G.,
RA   Blumer K.J.;
RT   "Actin cytoskeleton organization regulated by the PAK family of protein
RT   kinases.";
RL   Curr. Biol. 8:967-970(1998).
RN   [14]
RP   PHOSPHORYLATION BY THE CLN2-CDC28 COMPLEX.
RX   PubMed=9774429; DOI=10.1074/jbc.273.43.28107;
RA   Wu C., Leeuw T., Leberer E., Thomas D.Y., Whiteway M.;
RT   "Cell cycle- and Cln2p-Cdc28p-dependent phosphorylation of the yeast Ste20p
RT   protein kinase.";
RL   J. Biol. Chem. 273:28107-28115(1998).
RN   [15]
RP   FUNCTION, AND INTERACTION WITH STE4.
RX   PubMed=9428767; DOI=10.1038/34448;
RA   Leeuw T., Wu C., Schrag J.D., Whiteway M., Thomas D.Y., Leberer E.;
RT   "Interaction of a G-protein beta-subunit with a conserved sequence in
RT   Ste20/PAK family protein kinases.";
RL   Nature 391:191-195(1998).
RN   [16]
RP   FUNCTION.
RX   PubMed=10562285; DOI=10.1083/jcb.147.4.845;
RA   Holly S.P., Blumer K.J.;
RT   "PAK-family kinases regulate cell and actin polarization throughout the
RT   cell cycle of Saccharomyces cerevisiae.";
RL   J. Cell Biol. 147:845-856(1999).
RN   [17]
RP   INTERACTION WITH CLN2, IDENTIFICATION BY MASS SPECTROMETRY, AND
RP   PHOSPHORYLATION AT SER-547; SER-562; THR-573; SER-585 AND THR-773.
RX   PubMed=10359756; DOI=10.1073/pnas.96.12.6591;
RA   Oda Y., Huang K., Cross F.R., Cowburn D., Chait B.T.;
RT   "Accurate quantitation of protein expression and site-specific
RT   phosphorylation.";
RL   Proc. Natl. Acad. Sci. U.S.A. 96:6591-6596(1999).
RN   [18]
RP   FUNCTION IN PHOSPHORYLATION OF STE11.
RX   PubMed=10837245; DOI=10.1016/s0960-9822(00)00511-x;
RA   van Drogen F., O'Rourke S.M., Stucke V.M., Jaquenoud M., Neiman A.M.,
RA   Peter M.;
RT   "Phosphorylation of the MEKK Ste11p by the PAK-like kinase Ste20p is
RT   required for MAP kinase signaling in vivo.";
RL   Curr. Biol. 10:630-639(2000).
RN   [19]
RP   FUNCTION.
RX   PubMed=10970855; DOI=10.1093/emboj/19.17.4623;
RA   Raitt D.C., Posas F., Saito H.;
RT   "Yeast Cdc42 GTPase and Ste20 PAK-like kinase regulate Sho1-dependent
RT   activation of the Hog1 MAPK pathway.";
RL   EMBO J. 19:4623-4631(2000).
RN   [20]
RP   FUNCTION, INTERACTION WITH CDC42, AND SUBCELLULAR LOCATION.
RX   PubMed=11003652; DOI=10.1128/mcb.20.20.7559-7571.2000;
RA   Moskow J.J., Gladfelter A.S., Lamson R.E., Pryciak P.M., Lew D.J.;
RT   "Role of Cdc42p in pheromone-stimulated signal transduction in
RT   Saccharomyces cerevisiae.";
RL   Mol. Cell. Biol. 20:7559-7571(2000).
RN   [21]
RP   INTERACTION WITH CDC42.
RX   PubMed=11046150; DOI=10.1128/mcb.20.22.8548-8559.2000;
RA   Richman T.J., Johnson D.I.;
RT   "Saccharomyces cerevisiae cdc42p GTPase is involved in preventing the
RT   recurrence of bud emergence during the cell cycle.";
RL   Mol. Cell. Biol. 20:8548-8559(2000).
RN   [22]
RP   INTERACTION WITH CDC42.
RX   PubMed=12455995; DOI=10.1128/ec.1.3.469-480.2002;
RA   Smith G.R., Givan S.A., Cullen P., Sprague G.F. Jr.;
RT   "GTPase-activating proteins for Cdc42.";
RL   Eukaryot. Cell 1:469-480(2002).
RN   [23]
RP   FUNCTION, INTERACTION WITH CDC42, AND MUTAGENESIS OF SER-338 AND HIS-345.
RX   PubMed=11940652; DOI=10.1128/mcb.22.9.2939-2951.2002;
RA   Lamson R.E., Winters M.J., Pryciak P.M.;
RT   "Cdc42 regulation of kinase activity and signaling by the yeast p21-
RT   activated kinase Ste20.";
RL   Mol. Cell. Biol. 22:2939-2951(2002).
RN   [24]
RP   INTERACTION WITH CDC42, MUTAGENESIS OF HIS-345 AND HIS-348, AND SUBCELLULAR
RP   LOCATION.
RX   PubMed=12586692; DOI=10.1093/genetics/163.1.9;
RA   Ash J., Wu C., Larocque R., Jamal M., Stevens W., Osborne M., Thomas D.Y.,
RA   Whiteway M.;
RT   "Genetic analysis of the interface between Cdc42p and the CRIB domain of
RT   Ste20p in Saccharomyces cerevisiae.";
RL   Genetics 163:9-20(2003).
RN   [25]
RP   FUNCTION.
RX   PubMed=12686605; DOI=10.1091/mbc.e02-06-0348;
RA   Goehring A.S., Mitchell D.A., Tong A.H., Keniry M.E., Boone C.,
RA   Sprague G.F. Jr.;
RT   "Synthetic lethal analysis implicates Ste20p, a p21-activated protein
RT   kinase, in polarisome activation.";
RL   Mol. Biol. Cell 14:1501-1516(2003).
RN   [26]
RP   FUNCTION.
RX   PubMed=12588977; DOI=10.1128/mcb.23.5.1569-1580.2003;
RA   Keniry M.E., Sprague G.F. Jr.;
RT   "Identification of p21-activated kinase specificity determinants in budding
RT   yeast: a single amino acid substitution imparts Ste20 specificity to
RT   Cla4.";
RL   Mol. Cell. Biol. 23:1569-1580(2003).
RN   [27]
RP   LEVEL OF PROTEIN EXPRESSION [LARGE SCALE ANALYSIS].
RX   PubMed=14562106; DOI=10.1038/nature02046;
RA   Ghaemmaghami S., Huh W.-K., Bower K., Howson R.W., Belle A., Dephoure N.,
RA   O'Shea E.K., Weissman J.S.;
RT   "Global analysis of protein expression in yeast.";
RL   Nature 425:737-741(2003).
RN   [28]
RP   FUNCTION IN PHOSPHORYLATION OF HISTONE H2B, MUTAGENESIS OF LYS-649, AND
RP   SUBCELLULAR LOCATION.
RX   PubMed=15652479; DOI=10.1016/j.cell.2004.11.016;
RA   Ahn S.-H., Cheung W.L., Hsu J.-Y., Diaz R.L., Smith M.M., Allis C.D.;
RT   "Sterile 20 kinase phosphorylates histone H2B at serine 10 during hydrogen
RT   peroxide-induced apoptosis in S. cerevisiae.";
RL   Cell 120:25-36(2005).
RN   [29]
RP   FUNCTION IN PHOSPHORYLATION OF HISTONE H2B.
RX   PubMed=15970663; DOI=10.4161/cc.4.6.1745;
RA   Ahn S.-H., Henderson K.A., Keeney S., Allis C.D.;
RT   "H2B (Ser10) phosphorylation is induced during apoptosis and meiosis in S.
RT   cerevisiae.";
RL   Cell Cycle 4:780-783(2005).
RN   [30]
RP   FUNCTION, INTERACTION WITH BEM1, MUTAGENESIS OF PRO-475 AND PRO-477, AND
RP   SUBCELLULAR LOCATION.
RX   PubMed=15743816; DOI=10.1128/mcb.25.6.2177-2190.2005;
RA   Winters M.J., Pryciak P.M.;
RT   "Interaction with the SH3 domain protein Bem1 regulates signaling by the
RT   Saccharomyces cerevisiae p21-activated kinase Ste20.";
RL   Mol. Cell. Biol. 25:2177-2190(2005).
RN   [31]
RP   IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RC   STRAIN=YAL6B;
RX   PubMed=15665377; DOI=10.1074/mcp.m400219-mcp200;
RA   Gruhler A., Olsen J.V., Mohammed S., Mortensen P., Faergeman N.J., Mann M.,
RA   Jensen O.N.;
RT   "Quantitative phosphoproteomics applied to the yeast pheromone signaling
RT   pathway.";
RL   Mol. Cell. Proteomics 4:310-327(2005).
RN   [32]
RP   PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-169; THR-203; SER-562 AND
RP   SER-585, AND IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RC   STRAIN=ADR376;
RX   PubMed=17330950; DOI=10.1021/pr060559j;
RA   Li X., Gerber S.A., Rudner A.D., Beausoleil S.A., Haas W., Villen J.,
RA   Elias J.E., Gygi S.P.;
RT   "Large-scale phosphorylation analysis of alpha-factor-arrested
RT   Saccharomyces cerevisiae.";
RL   J. Proteome Res. 6:1190-1197(2007).
RN   [33]
RP   PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-562, AND IDENTIFICATION BY
RP   MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RX   PubMed=17287358; DOI=10.1073/pnas.0607084104;
RA   Chi A., Huttenhower C., Geer L.Y., Coon J.J., Syka J.E.P., Bai D.L.,
RA   Shabanowitz J., Burke D.J., Troyanskaya O.G., Hunt D.F.;
RT   "Analysis of phosphorylation sites on proteins from Saccharomyces
RT   cerevisiae by electron transfer dissociation (ETD) mass spectrometry.";
RL   Proc. Natl. Acad. Sci. U.S.A. 104:2193-2198(2007).
RN   [34]
RP   PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-165; THR-167; THR-203;
RP   SER-502; SER-924 AND THR-927, AND IDENTIFICATION BY MASS SPECTROMETRY
RP   [LARGE SCALE ANALYSIS].
RX   PubMed=18407956; DOI=10.1074/mcp.m700468-mcp200;
RA   Albuquerque C.P., Smolka M.B., Payne S.H., Bafna V., Eng J., Zhou H.;
RT   "A multidimensional chromatography technology for in-depth phosphoproteome
RT   analysis.";
RL   Mol. Cell. Proteomics 7:1389-1396(2008).
RN   [35]
RP   PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-87; SER-169; THR-203;
RP   SER-502; SER-547 AND SER-562, AND IDENTIFICATION BY MASS SPECTROMETRY
RP   [LARGE SCALE ANALYSIS].
RX   PubMed=19779198; DOI=10.1126/science.1172867;
RA   Holt L.J., Tuch B.B., Villen J., Johnson A.D., Gygi S.P., Morgan D.O.;
RT   "Global analysis of Cdk1 substrate phosphorylation sites provides insights
RT   into evolution.";
RL   Science 325:1682-1686(2009).
RN   [36]
RP   ACETYLATION [LARGE SCALE ANALYSIS] AT SER-2, CLEAVAGE OF INITIATOR
RP   METHIONINE [LARGE SCALE ANALYSIS], AND IDENTIFICATION BY MASS SPECTROMETRY
RP   [LARGE SCALE ANALYSIS].
RX   PubMed=22814378; DOI=10.1073/pnas.1210303109;
RA   Van Damme P., Lasa M., Polevoda B., Gazquez C., Elosegui-Artola A.,
RA   Kim D.S., De Juan-Pardo E., Demeyer K., Hole K., Larrea E., Timmerman E.,
RA   Prieto J., Arnesen T., Sherman F., Gevaert K., Aldabe R.;
RT   "N-terminal acetylome analyses and functional insights of the N-terminal
RT   acetyltransferase NatB.";
RL   Proc. Natl. Acad. Sci. U.S.A. 109:12449-12454(2012).
CC   -!- FUNCTION: MAP4K component of the MAPK pathway required for the mating
CC       pheromone response, haploid invasive growth and diploid pseudohyphal
CC       development. Links the pheromone response G-protein beta gamma subunits
CC       to downstream signaling components. Needed for mating in haploid cells,
CC       induction of a mating-specific gene FUS1, induction of mating-specific
CC       morphologies, and pheromone-induced proliferation arrest. Required for
CC       the regulation of the actin polarization and bud emergence during cell
CC       cycle in G1. Involved in the high osmolarity glycerol (HOG) response.
CC       Phosphorylates 'Thr-307' and 'Ser-302' or 'Ser-306' of STE11 and 'Ser-
CC       357' of MYO3. Phosphorylates histone H2B to form H2BS10ph during
CC       meiosis and H(2)O(2)-induced apoptosis. Its interaction with CDC42 is
CC       required for both invasive growth and the formation of pseudohyphae.
CC       Its interaction with STE4 is required for the pheromone signaling.
CC       {ECO:0000269|PubMed:10562285, ECO:0000269|PubMed:10837245,
CC       ECO:0000269|PubMed:10970855, ECO:0000269|PubMed:11003652,
CC       ECO:0000269|PubMed:11940652, ECO:0000269|PubMed:12588977,
CC       ECO:0000269|PubMed:12686605, ECO:0000269|PubMed:1464311,
CC       ECO:0000269|PubMed:15652479, ECO:0000269|PubMed:15743816,
CC       ECO:0000269|PubMed:15970663, ECO:0000269|PubMed:7608157,
CC       ECO:0000269|PubMed:8421676, ECO:0000269|PubMed:8643578,
CC       ECO:0000269|PubMed:8722766, ECO:0000269|PubMed:9003780,
CC       ECO:0000269|PubMed:9009270, ECO:0000269|PubMed:9388196,
CC       ECO:0000269|PubMed:9428767, ECO:0000269|PubMed:9742399}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + L-seryl-[protein] = ADP + H(+) + O-phospho-L-seryl-
CC         [protein]; Xref=Rhea:RHEA:17989, Rhea:RHEA-COMP:9863, Rhea:RHEA-
CC         COMP:11604, ChEBI:CHEBI:15378, ChEBI:CHEBI:29999, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:83421, ChEBI:CHEBI:456216; EC=2.7.11.1;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + L-threonyl-[protein] = ADP + H(+) + O-phospho-L-
CC         threonyl-[protein]; Xref=Rhea:RHEA:46608, Rhea:RHEA-COMP:11060,
CC         Rhea:RHEA-COMP:11605, ChEBI:CHEBI:15378, ChEBI:CHEBI:30013,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:61977, ChEBI:CHEBI:456216;
CC         EC=2.7.11.1;
CC   -!- SUBUNIT: Interacts with BEM1, CDC42, CLN2, STE4 and the 14-3-3 proteins
CC       BMH1 and BMH2. {ECO:0000269|PubMed:10359756,
CC       ECO:0000269|PubMed:11003652, ECO:0000269|PubMed:11046150,
CC       ECO:0000269|PubMed:11940652, ECO:0000269|PubMed:12455995,
CC       ECO:0000269|PubMed:12586692, ECO:0000269|PubMed:15743816,
CC       ECO:0000269|PubMed:9003780, ECO:0000269|PubMed:9009270,
CC       ECO:0000269|PubMed:9215628, ECO:0000269|PubMed:9428767}.
CC   -!- INTERACTION:
CC       Q03497; P29366: BEM1; NbExp=11; IntAct=EBI-18285, EBI-3508;
CC       Q03497; P19073: CDC42; NbExp=6; IntAct=EBI-18285, EBI-4274;
CC       Q03497; P36006: MYO3; NbExp=3; IntAct=EBI-18285, EBI-11670;
CC       Q03497; Q04439: MYO5; NbExp=4; IntAct=EBI-18285, EBI-11687;
CC       Q03497; Q12163: NBP2; NbExp=6; IntAct=EBI-18285, EBI-34713;
CC       Q03497; P80667: PEX13; NbExp=3; IntAct=EBI-18285, EBI-13206;
CC       Q03497; P18851: STE4; NbExp=3; IntAct=EBI-18285, EBI-7390;
CC   -!- SUBCELLULAR LOCATION: Cytoplasm. Nucleus. Note=The translocation from
CC       the cytoplasm to the nucleus is stimulated by H(2)O(2). Localizes at
CC       bud emergence during cell cycle and the shmoo top during mating, both
CC       localizations requiring an interaction with CDC42.
CC   -!- DOMAIN: The CRIB domain is required for the association with CDC42.
CC   -!- PTM: Autophosphorylated and phosphorylated by the CLN2-CDC28 complex in
CC       a cell cycle dependent manner.
CC   -!- PTM: Autophosphorylated on serine residues.
CC   -!- MISCELLANEOUS: Present with 259 molecules/cell in log phase SD medium.
CC       {ECO:0000269|PubMed:14562106}.
CC   -!- SIMILARITY: Belongs to the protein kinase superfamily. STE Ser/Thr
CC       protein kinase family. STE20 subfamily. {ECO:0000305}.
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DR   EMBL; M94719; AAA35111.1; -; Genomic_DNA.
DR   EMBL; L04655; AAA35038.1; -; Genomic_DNA.
DR   EMBL; L04655; AAA35039.1; -; Genomic_DNA.
DR   EMBL; U11581; AAB69747.1; -; Genomic_DNA.
DR   EMBL; BK006934; DAA06681.1; -; Genomic_DNA.
DR   PIR; S28394; S28394.
DR   RefSeq; NP_011856.1; NM_001179087.1.
DR   PDB; 2KYM; NMR; -; B=468-483.
DR   PDB; 2LCS; NMR; -; B=468-483.
DR   PDB; 2RQW; NMR; -; B=463-486.
DR   PDBsum; 2KYM; -.
DR   PDBsum; 2LCS; -.
DR   PDBsum; 2RQW; -.
DR   AlphaFoldDB; Q03497; -.
DR   BMRB; Q03497; -.
DR   SMR; Q03497; -.
DR   BioGRID; 36419; 274.
DR   DIP; DIP-712N; -.
DR   IntAct; Q03497; 37.
DR   MINT; Q03497; -.
DR   STRING; 4932.YHL007C; -.
DR   GlyGen; Q03497; 18 sites, 1 O-linked glycan (18 sites).
DR   iPTMnet; Q03497; -.
DR   MaxQB; Q03497; -.
DR   PaxDb; 4932-YHL007C; -.
DR   PeptideAtlas; Q03497; -.
DR   EnsemblFungi; YHL007C_mRNA; YHL007C; YHL007C.
DR   GeneID; 856382; -.
DR   KEGG; sce:YHL007C; -.
DR   AGR; SGD:S000000999; -.
DR   SGD; S000000999; STE20.
DR   VEuPathDB; FungiDB:YHL007C; -.
DR   eggNOG; KOG0578; Eukaryota.
DR   GeneTree; ENSGT00940000165560; -.
DR   HOGENOM; CLU_000288_26_3_1; -.
DR   InParanoid; Q03497; -.
DR   OMA; FYQDVTE; -.
DR   OrthoDB; 460351at2759; -.
DR   BioCyc; YEAST:G3O-31029-MONOMER; -.
DR   BRENDA; 2.7.11.1; 984.
DR   Reactome; R-SCE-2029482; Regulation of actin dynamics for phagocytic cup formation.
DR   Reactome; R-SCE-389359; CD28 dependent Vav1 pathway.
DR   Reactome; R-SCE-3928662; EPHB-mediated forward signaling.
DR   Reactome; R-SCE-445144; Signal transduction by L1.
DR   Reactome; R-SCE-5627123; RHO GTPases activate PAKs.
DR   Reactome; R-SCE-5687128; MAPK6/MAPK4 signaling.
DR   Reactome; R-SCE-9013405; RHOD GTPase cycle.
DR   Reactome; R-SCE-9013406; RHOQ GTPase cycle.
DR   Reactome; R-SCE-9013420; RHOU GTPase cycle.
DR   Reactome; R-SCE-9013424; RHOV GTPase cycle.
DR   BioGRID-ORCS; 856382; 0 hits in 13 CRISPR screens.
DR   EvolutionaryTrace; Q03497; -.
DR   PRO; PR:Q03497; -.
DR   Proteomes; UP000002311; Chromosome VIII.
DR   RNAct; Q03497; Protein.
DR   GO; GO:0005737; C:cytoplasm; IDA:SGD.
DR   GO; GO:0000131; C:incipient cellular bud site; IDA:SGD.
DR   GO; GO:0043332; C:mating projection tip; IDA:SGD.
DR   GO; GO:0005634; C:nucleus; IDA:SGD.
DR   GO; GO:0005886; C:plasma membrane; HDA:SGD.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0044025; F:histone H2BS14 kinase activity; IDA:SGD.
DR   GO; GO:0003729; F:mRNA binding; HDA:SGD.
DR   GO; GO:0004672; F:protein kinase activity; HDA:SGD.
DR   GO; GO:0106310; F:protein serine kinase activity; IEA:RHEA.
DR   GO; GO:0004674; F:protein serine/threonine kinase activity; IBA:GO_Central.
DR   GO; GO:0007121; P:bipolar cellular bud site selection; IMP:SGD.
DR   GO; GO:0007118; P:budding cell apical bud growth; IMP:SGD.
DR   GO; GO:0000282; P:cellular bud site selection; HMP:SGD.
DR   GO; GO:0035556; P:intracellular signal transduction; IBA:GO_Central.
DR   GO; GO:0001403; P:invasive growth in response to glucose limitation; IMP:SGD.
DR   GO; GO:0010629; P:negative regulation of gene expression; IMP:SGD.
DR   GO; GO:0000122; P:negative regulation of transcription by RNA polymerase II; IMP:SGD.
DR   GO; GO:0007232; P:osmosensory signaling pathway via Sho1 osmosensor; IMP:SGD.
DR   GO; GO:0000750; P:pheromone-dependent signal transduction involved in conjugation with cellular fusion; IMP:SGD.
DR   GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR   GO; GO:0043065; P:positive regulation of apoptotic process; IMP:SGD.
DR   GO; GO:0007124; P:pseudohyphal growth; IMP:SGD.
DR   GO; GO:0007096; P:regulation of exit from mitosis; IMP:SGD.
DR   GO; GO:0043408; P:regulation of MAPK cascade; IBA:GO_Central.
DR   GO; GO:0001402; P:signal transduction involved in filamentous growth; IMP:SGD.
DR   GO; GO:0035376; P:sterol import; IMP:SGD.
DR   GO; GO:0034063; P:stress granule assembly; IMP:SGD.
DR   GO; GO:0000011; P:vacuole inheritance; IMP:SGD.
DR   CDD; cd01093; CRIB_PAK_like; 1.
DR   CDD; cd06614; STKc_PAK; 1.
DR   Gene3D; 3.90.810.10; CRIB domain; 1.
DR   Gene3D; 1.10.510.10; Transferase(Phosphotransferase) domain 1; 1.
DR   InterPro; IPR000095; CRIB_dom.
DR   InterPro; IPR036936; CRIB_dom_sf.
DR   InterPro; IPR011009; Kinase-like_dom_sf.
DR   InterPro; IPR033923; PAK_BD.
DR   InterPro; IPR000719; Prot_kinase_dom.
DR   InterPro; IPR017441; Protein_kinase_ATP_BS.
DR   InterPro; IPR008271; Ser/Thr_kinase_AS.
DR   PANTHER; PTHR48015; SERINE/THREONINE-PROTEIN KINASE TAO; 1.
DR   PANTHER; PTHR48015:SF35; SERINE_THREONINE-PROTEIN KINASE PAK; 1.
DR   Pfam; PF00786; PBD; 1.
DR   Pfam; PF00069; Pkinase; 1.
DR   SMART; SM00285; PBD; 1.
DR   SMART; SM00220; S_TKc; 1.
DR   SUPFAM; SSF56112; Protein kinase-like (PK-like); 1.
DR   PROSITE; PS50108; CRIB; 1.
DR   PROSITE; PS00107; PROTEIN_KINASE_ATP; 1.
DR   PROSITE; PS50011; PROTEIN_KINASE_DOM; 1.
DR   PROSITE; PS00108; PROTEIN_KINASE_ST; 1.
PE   1: Evidence at protein level;
KW   3D-structure; Acetylation; ATP-binding; Cell cycle; Cytoplasm;
KW   Direct protein sequencing; Kinase; Nucleotide-binding; Nucleus;
KW   Pheromone response; Phosphoprotein; Reference proteome;
KW   Serine/threonine-protein kinase; Transferase.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0007744|PubMed:22814378"
FT   CHAIN           2..939
FT                   /note="Serine/threonine-protein kinase STE20"
FT                   /id="PRO_0000086686"
FT   DOMAIN          337..350
FT                   /note="CRIB"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00057"
FT   DOMAIN          620..871
FT                   /note="Protein kinase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00159"
FT   REGION          1..87
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          176..299
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          311..331
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          407..487
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          434..499
FT                   /note="BEM1-binding"
FT   REGION          500..598
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          899..939
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        176..230
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        256..299
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        407..470
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        500..529
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        545..583
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        584..598
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        908..939
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   ACT_SITE        739
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00159,
FT                   ECO:0000255|PROSITE-ProRule:PRU10027"
FT   BINDING         626..634
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00159"
FT   BINDING         649
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00159"
FT   MOD_RES         2
FT                   /note="N-acetylserine"
FT                   /evidence="ECO:0007744|PubMed:22814378"
FT   MOD_RES         87
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0007744|PubMed:19779198"
FT   MOD_RES         165
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0007744|PubMed:18407956"
FT   MOD_RES         167
FT                   /note="Phosphothreonine"
FT                   /evidence="ECO:0007744|PubMed:18407956"
FT   MOD_RES         169
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000269|PubMed:16428446,
FT                   ECO:0007744|PubMed:17330950, ECO:0007744|PubMed:19779198"
FT   MOD_RES         203
FT                   /note="Phosphothreonine"
FT                   /evidence="ECO:0007744|PubMed:17330950,
FT                   ECO:0007744|PubMed:18407956, ECO:0007744|PubMed:19779198"
FT   MOD_RES         418
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000269|PubMed:16428446"
FT   MOD_RES         502
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0007744|PubMed:18407956,
FT                   ECO:0007744|PubMed:19779198"
FT   MOD_RES         547
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000269|PubMed:10359756,
FT                   ECO:0007744|PubMed:19779198"
FT   MOD_RES         562
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000269|PubMed:10359756,
FT                   ECO:0007744|PubMed:17287358, ECO:0007744|PubMed:17330950,
FT                   ECO:0007744|PubMed:19779198"
FT   MOD_RES         573
FT                   /note="Phosphothreonine"
FT                   /evidence="ECO:0000269|PubMed:10359756"
FT   MOD_RES         585
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000269|PubMed:10359756,
FT                   ECO:0000269|PubMed:16428446, ECO:0007744|PubMed:17330950"
FT   MOD_RES         773
FT                   /note="Phosphothreonine"
FT                   /evidence="ECO:0000269|PubMed:10359756"
FT   MOD_RES         924
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0007744|PubMed:18407956"
FT   MOD_RES         927
FT                   /note="Phosphothreonine"
FT                   /evidence="ECO:0007744|PubMed:18407956"
FT   MUTAGEN         338
FT                   /note="S->A: Reduces interaction with CDC42."
FT                   /evidence="ECO:0000269|PubMed:11940652"
FT   MUTAGEN         345
FT                   /note="H->A,D: Reduces interaction with CDC42."
FT                   /evidence="ECO:0000269|PubMed:11940652,
FT                   ECO:0000269|PubMed:12586692"
FT   MUTAGEN         348
FT                   /note="H->D: Reduces interaction with CDC42."
FT                   /evidence="ECO:0000269|PubMed:12586692"
FT   MUTAGEN         475
FT                   /note="P->G: Impairs interaction with BEM1; when associated
FT                   with A-477."
FT                   /evidence="ECO:0000269|PubMed:15743816"
FT   MUTAGEN         477
FT                   /note="P->A: Impairs interaction with BEM1; when associated
FT                   with G-475."
FT                   /evidence="ECO:0000269|PubMed:15743816"
FT   MUTAGEN         649
FT                   /note="K->R: Impairs phosphorylation of STE11 and histone
FT                   H2B and mating efficiency."
FT                   /evidence="ECO:0000269|PubMed:15652479,
FT                   ECO:0000269|PubMed:7608157"
FT   MUTAGEN         777
FT                   /note="T->A: Impairs autophosphorylation and mating
FT                   efficiency."
FT                   /evidence="ECO:0000269|PubMed:7608157"
FT   CONFLICT        19
FT                   /note="N -> S (in Ref. 2; AAA35038)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        134
FT                   /note="I -> M (in Ref. 2; AAA35038)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        271
FT                   /note="P -> S (in Ref. 2; AAA35038)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   939 AA;  102362 MW;  69C1C12F5B87733C CRC64;
     MSNDPSAVSE LPDKDSLDNG ISNDNERAMG GNGDGGDGLR LPRTTGTLNV NALQKGTNAA
     HEAGGYKSMD PAKNAETTND DDNNVVSLDD PIQFTRVSSS SVISGMSSSM SPHSNIDETK
     SLEAVTPNIN TSNITPDHSA DNTFSTINAS ESDHQFNDTL LSKLSLTDST ETIENNATVK
     HQQPVASSTV NSNKSSTDIR RATPVSTPVI SKPSMTTTPR QINSASHSLS NPKHKQHKPK
     VKPSKPEAKS KPVSVKKSFP SKNPLKNSSP PKKQTEKSYY SSSSKKRKSG SNSGTLRMKD
     VFTSFVQNIK RNSQDDKRAS SSSNNSSSSS ITTALRISTP YNAKHIHHVG VDSKTGEYTG
     LPEEWEKLLT SSGISKREQQ QNMQAVMDIV KFYQDVTETN GEDKMFKTFN TTTGLPGSPQ
     VSTPPANSFN KFPPSTSDSH NYGSRTGTPM SNHVMSPTLN TDSSSANGKF IPSRPAPKPP
     SSASASAPII KSPVMNSAAN VSPLKQTHAP TTPNRTSPNR SSISRNATLK KEEQPLPPIP
     PTKSKTSPII STAHTPQQVA QSPKAPAQET VTTPTSKPAQ ARSLSKELNE KKREERERRK
     KQLYAKLNEI CSDGDPSTKY ANLVKIGQGA SGGVYTAYEI GTNVSVAIKQ MNLEKQPKKE
     LIINEILVMK GSKHPNIVNF IDSYVLKGDL WVIMEYMEGG SLTDVVTHCI LTEGQIGAVC
     RETLSGLEFL HSKGVLHRDI KSDNILLSME GDIKLTDFGF CAQINELNLK RTTMVGTPYW
     MAPEVVSRKE YGPKVDIWSL GIMIIEMIEG EPPYLNETPL RALYLIATNG TPKLKEPENL
     SSSLKKFLDW CLCVEPEDRA SATELLHDEY ITEIAEANSS LAPLVKLARL KKVAENMDAD
     EDNDDDNDNE HINKTNNCDD NNDSKETVNL DVTEDDKQK
//
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