ID PAN3_DEBHA Reviewed; 660 AA.
AC Q6BRV5;
DT 24-JUL-2007, integrated into UniProtKB/Swiss-Prot.
DT 16-DEC-2008, sequence version 2.
DT 24-JAN-2024, entry version 128.
DE RecName: Full=PAN2-PAN3 deadenylation complex subunit PAN3 {ECO:0000255|HAMAP-Rule:MF_03181};
DE AltName: Full=PAB1P-dependent poly(A)-specific ribonuclease {ECO:0000255|HAMAP-Rule:MF_03181};
DE AltName: Full=Poly(A)-nuclease deadenylation complex subunit 3 {ECO:0000255|HAMAP-Rule:MF_03181};
DE Short=PAN deadenylation complex subunit 3 {ECO:0000255|HAMAP-Rule:MF_03181};
GN Name=PAN3 {ECO:0000255|HAMAP-Rule:MF_03181};
GN OrderedLocusNames=DEHA2D13530g;
OS Debaryomyces hansenii (strain ATCC 36239 / CBS 767 / BCRC 21394 / JCM 1990
OS / NBRC 0083 / IGC 2968) (Yeast) (Torulaspora hansenii).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Debaryomycetaceae; Debaryomyces.
OX NCBI_TaxID=284592;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 36239 / CBS 767 / BCRC 21394 / JCM 1990 / NBRC 0083 / IGC 2968;
RX PubMed=15229592; DOI=10.1038/nature02579;
RA Dujon B., Sherman D., Fischer G., Durrens P., Casaregola S., Lafontaine I.,
RA de Montigny J., Marck C., Neuveglise C., Talla E., Goffard N., Frangeul L.,
RA Aigle M., Anthouard V., Babour A., Barbe V., Barnay S., Blanchin S.,
RA Beckerich J.-M., Beyne E., Bleykasten C., Boisrame A., Boyer J.,
RA Cattolico L., Confanioleri F., de Daruvar A., Despons L., Fabre E.,
RA Fairhead C., Ferry-Dumazet H., Groppi A., Hantraye F., Hennequin C.,
RA Jauniaux N., Joyet P., Kachouri R., Kerrest A., Koszul R., Lemaire M.,
RA Lesur I., Ma L., Muller H., Nicaud J.-M., Nikolski M., Oztas S.,
RA Ozier-Kalogeropoulos O., Pellenz S., Potier S., Richard G.-F.,
RA Straub M.-L., Suleau A., Swennen D., Tekaia F., Wesolowski-Louvel M.,
RA Westhof E., Wirth B., Zeniou-Meyer M., Zivanovic Y., Bolotin-Fukuhara M.,
RA Thierry A., Bouchier C., Caudron B., Scarpelli C., Gaillardin C.,
RA Weissenbach J., Wincker P., Souciet J.-L.;
RT "Genome evolution in yeasts.";
RL Nature 430:35-44(2004).
CC -!- FUNCTION: Regulatory subunit of the poly(A)-nuclease (PAN)
CC deadenylation complex, one of two cytoplasmic mRNA deadenylases
CC involved in mRNA turnover. PAN specifically shortens poly(A) tails of
CC RNA and the activity is stimulated by poly(A)-binding protein PAB1. PAN
CC deadenylation is followed by rapid degradation of the shortened mRNA
CC tails by the CCR4-NOT complex. Deadenylated mRNAs are then degraded by
CC two alternative mechanisms, namely exosome-mediated 3'-5'
CC exonucleolytic degradation, or deadenylation-dependent mRNA decaping
CC and subsequent 5'-3' exonucleolytic degradation by XRN1. May also be
CC involved in post-transcriptional maturation of mRNA poly(A) tails. PAN3
CC acts as a positive regulator for PAN activity, recruiting the catalytic
CC subunit PAN2 to mRNA via its interaction with RNA and with PAB1.
CC {ECO:0000255|HAMAP-Rule:MF_03181}.
CC -!- SUBUNIT: Homodimer. Forms a heterotrimer with a catalytic subunit PAN2
CC to form the poly(A)-nuclease (PAN) deadenylation complex. Interacts
CC (via PAM-2 motif) with poly(A)-binding protein PAB1 (via PABC domain),
CC conferring substrate specificity of the enzyme complex.
CC {ECO:0000255|HAMAP-Rule:MF_03181}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_03181}.
CC -!- DOMAIN: The N-terminal zinc finger binds to poly(A) RNA.
CC {ECO:0000255|HAMAP-Rule:MF_03181}.
CC -!- DOMAIN: Contains a pseudokinase domain. The protein kinase domain is
CC predicted to be catalytically inactive because some of the residues
CC important for catalytic activity are substituted and it lacks the
CC equivalent of the binding site for a peptide substrate. However, it has
CC retained an ATP-binding site and ATP-binding is required for mRNA
CC degradation, stimulating the activity of the PAN2 nuclease in vitro.
CC The nucleotide-binding site is juxtaposed to the RNase active site of
CC PAN2 in the complex and may actually bind nucleosides of a poly(A) RNA
CC rather than ATP, feeding the poly(A)-tail to the active site of the
CC deadenylase and thus increasing the efficiency with which this
CC distributive enzyme degrades oligo(A) RNAs. {ECO:0000255|HAMAP-
CC Rule:MF_03181}.
CC -!- DOMAIN: The pseudokinase domain, the coiled-coil (CC), and C-terminal
CC knob domain (CK) form a structural unit (PKC) that forms an extensive
CC high-affinity interaction surface for PAN2. {ECO:0000255|HAMAP-
CC Rule:MF_03181}.
CC -!- SIMILARITY: Belongs to the protein kinase superfamily. PAN3 family.
CC {ECO:0000255|HAMAP-Rule:MF_03181}.
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DR EMBL; CR382136; CAG87233.2; -; Genomic_DNA.
DR RefSeq; XP_459065.2; XM_459065.1.
DR AlphaFoldDB; Q6BRV5; -.
DR SMR; Q6BRV5; -.
DR STRING; 284592.Q6BRV5; -.
DR GeneID; 2901170; -.
DR KEGG; dha:DEHA2D13530g; -.
DR VEuPathDB; FungiDB:DEHA2D13530g; -.
DR eggNOG; KOG3741; Eukaryota.
DR HOGENOM; CLU_016423_1_0_1; -.
DR InParanoid; Q6BRV5; -.
DR OMA; DRAWSEN; -.
DR OrthoDB; 316368at2759; -.
DR Proteomes; UP000000599; Chromosome D.
DR GO; GO:0031251; C:PAN complex; IEA:UniProtKB-UniRule.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003723; F:RNA binding; IEA:InterPro.
DR GO; GO:0006397; P:mRNA processing; IEA:UniProtKB-KW.
DR GO; GO:0000289; P:nuclear-transcribed mRNA poly(A) tail shortening; IEA:UniProtKB-UniRule.
DR Gene3D; 1.10.287.3700; -; 1.
DR Gene3D; 1.20.5.5160; -; 1.
DR Gene3D; 6.10.250.3160; -; 1.
DR Gene3D; 1.10.510.10; Transferase(Phosphotransferase) domain 1; 1.
DR HAMAP; MF_03181; PAN3; 1.
DR InterPro; IPR011009; Kinase-like_dom_sf.
DR InterPro; IPR030844; PAN3.
DR InterPro; IPR041332; Pan3_PK.
DR InterPro; IPR000571; Znf_CCCH.
DR PANTHER; PTHR12272; DEADENYLATION COMPLEX SUBUNIT PAN3; 1.
DR PANTHER; PTHR12272:SF11; PAN2-PAN3 DEADENYLATION COMPLEX SUBUNIT PAN3; 1.
DR Pfam; PF18101; Pan3_PK; 1.
DR SUPFAM; SSF56112; Protein kinase-like (PK-like); 1.
DR PROSITE; PS50103; ZF_C3H1; 1.
PE 3: Inferred from homology;
KW ATP-binding; Coiled coil; Cytoplasm; Metal-binding; mRNA processing;
KW Nucleotide-binding; Reference proteome; Zinc; Zinc-finger.
FT CHAIN 1..660
FT /note="PAN2-PAN3 deadenylation complex subunit PAN3"
FT /id="PRO_0000295367"
FT ZN_FING 7..36
FT /note="C3H1-type"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03181"
FT REGION 36..60
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 150..186
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 252..528
FT /note="Pseudokinase domain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03181"
FT REGION 568..660
FT /note="Knob domain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03181"
FT COILED 529..567
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03181"
FT MOTIF 59..79
FT /note="PABPC-interacting motif-2 (PAM-2)"
FT /evidence="ECO:0000305"
FT BINDING 304
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03181"
FT BINDING 358..365
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03181"
FT BINDING 415..416
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03181"
SQ SEQUENCE 660 AA; 74148 MW; D893C8BBAD3F8326 CRC64;
MNINLDSAKD TFCKNVLIYG YCKYENKGCA FSHTVKPTSS VPGSQGSNAT TNSSGNTNAD
MKKKFNFNTP SFQPSTVPNL TNKFSNLSPN LKEIPVFVPS GGMSNADSGG MNEPEMNDSV
TPNKKFNAST PSFMPSNPYI SNNDQISAPS PVMAQSVSTP GAKANGNIQH NPYLPGNAGT
PQPTSAVAAP NSADVFFQQP TSSYPLQHHL YAPAPPPRLT IPLPPHEINV NSMFIPNDLR
ETLLKRNEAT LQTLPRSNLP DHVNIYHSLV PIDTSFENIS KVYELPSFVY KVFSNVDGNP
YALRKIDIQS VLRITNELPF KYIKKWKSVK CANIVQLQEA FTSMAFGGSY SSLIVTYDYF
PNSNTLQEQH ISRRLGGKLE PITEELLWNY VIEITNALIN IHENNLAARS ALHLSKILVT
NKNRVRLGGV GISDILNYED DEEQIQQKGL DAFRHELQQA DIKKFGKLIL DLAALCLPNN
ARNHEPKDLI SLLKTSTTVN FSGEFINLLT ELNMNTSDLQ EFNRNHLSRR ILNFCSNAQD
SQDFMESQLS TELENARVFR LITKLNFIID RPEYDNDPNW QENGNKYIIK LFRDYIFFQY
DEFGKPVCDL SRVLTNLNKL DAGIDEKFLL VNKDEKNCII VSYKEIRDII DSAFRTLTRG
//
