ID A0A669CML9_ORENI Unreviewed; 955 AA.
AC A0A669CML9;
DT 17-JUN-2020, integrated into UniProtKB/TrEMBL.
DT 17-JUN-2020, sequence version 1.
DT 28-JAN-2026, entry version 28.
DE RecName: Full=Mast/stem cell growth factor receptor {ECO:0000256|PIRNR:PIRNR500951};
DE EC=2.7.10.1 {ECO:0000256|PIRNR:PIRNR500951};
GN Name=kitb {ECO:0000313|Ensembl:ENSONIP00000047693.1};
OS Oreochromis niloticus (Nile tilapia) (Tilapia nilotica).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata;
OC Ovalentaria; Cichlomorphae; Cichliformes; Cichlidae; African cichlids;
OC Pseudocrenilabrinae; Oreochromini; Oreochromis.
OX NCBI_TaxID=8128 {ECO:0000313|Ensembl:ENSONIP00000047693.1, ECO:0000313|Proteomes:UP000005207};
RN [1] {ECO:0000313|Proteomes:UP000005207}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RG Broad Institute Genome Assembly Team;
RG Broad Institute Sequencing Platform;
RA Di Palma F., Johnson J., Lander E.S., Lindblad-Toh K.;
RT "The Genome Sequence of Oreochromis niloticus (Nile Tilapia).";
RL Submitted (JAN-2012) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|Ensembl:ENSONIP00000047693.1}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (AUG-2025) to UniProtKB.
RN [3] {ECO:0000313|Ensembl:ENSONIP00000047693.1}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (SEP-2025) to UniProtKB.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=L-tyrosyl-[protein] + ATP = O-phospho-L-tyrosyl-[protein] +
CC ADP + H(+); Xref=Rhea:RHEA:10596, Rhea:RHEA-COMP:10136, Rhea:RHEA-
CC COMP:20101, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616, ChEBI:CHEBI:46858,
CC ChEBI:CHEBI:61978, ChEBI:CHEBI:456216; EC=2.7.10.1;
CC Evidence={ECO:0000256|ARBA:ARBA00051243,
CC ECO:0000256|PIRNR:PIRNR500951};
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000256|ARBA:ARBA00004251};
CC Single-pass type I membrane protein {ECO:0000256|ARBA:ARBA00004251}.
CC Membrane {ECO:0000256|RuleBase:RU000311}; Single-pass type I membrane
CC protein {ECO:0000256|RuleBase:RU000311}.
CC -!- SIMILARITY: Belongs to the protein kinase superfamily. Tyr protein
CC kinase family. CSF-1/PDGF receptor subfamily.
CC {ECO:0000256|PIRNR:PIRNR500951, ECO:0000256|RuleBase:RU000311}.
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DR RefSeq; XP_005456854.1; XM_005456797.4.
DR AlphaFoldDB; A0A669CML9; -.
DR Ensembl; ENSONIT00000038660.1; ENSONIP00000047693.1; ENSONIG00000008788.2.
DR GeneID; 100706409; -.
DR KEGG; onl:100706409; -.
DR CTD; 497629; -.
DR GeneTree; ENSGT00940000155626; -.
DR OrthoDB; 6077854at2759; -.
DR Proteomes; UP000005207; Linkage group LG6.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0043235; C:receptor complex; IEA:TreeGrafter.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0019955; F:cytokine binding; IEA:UniProtKB-UniRule.
DR GO; GO:0019838; F:growth factor binding; IEA:TreeGrafter.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0004714; F:transmembrane receptor protein tyrosine kinase activity; IEA:UniProtKB-EC.
DR GO; GO:0001667; P:ameboidal-type cell migration; IEA:UniProtKB-ARBA.
DR GO; GO:0030183; P:B cell differentiation; IEA:TreeGrafter.
DR GO; GO:0038093; P:Fc receptor signaling pathway; IEA:UniProtKB-UniRule.
DR GO; GO:0002244; P:hematopoietic progenitor cell differentiation; IEA:TreeGrafter.
DR GO; GO:0038109; P:Kit signaling pathway; IEA:InterPro.
DR GO; GO:0030335; P:positive regulation of cell migration; IEA:TreeGrafter.
DR GO; GO:0046427; P:positive regulation of receptor signaling pathway via JAK-STAT; IEA:TreeGrafter.
DR FunFam; 3.30.200.20:FF:000025; Platelet-derived growth factor receptor alpha; 1.
DR FunFam; 1.10.510.10:FF:000140; Platelet-derived growth factor receptor beta; 1.
DR Gene3D; 2.60.40.10; Immunoglobulins; 5.
DR Gene3D; 3.30.200.20; Phosphorylase Kinase, domain 1; 1.
DR Gene3D; 1.10.510.10; Transferase(Phosphotransferase) domain 1; 1.
DR InterPro; IPR007110; Ig-like_dom.
DR InterPro; IPR036179; Ig-like_dom_sf.
DR InterPro; IPR013783; Ig-like_fold.
DR InterPro; IPR013098; Ig_I-set.
DR InterPro; IPR003599; Ig_sub.
DR InterPro; IPR003598; Ig_sub2.
DR InterPro; IPR011009; Kinase-like_dom_sf.
DR InterPro; IPR000719; Prot_kinase_dom.
DR InterPro; IPR017441; Protein_kinase_ATP_BS.
DR InterPro; IPR050122; RTK.
DR InterPro; IPR027263; SCGF_receptor.
DR InterPro; IPR001245; Ser-Thr/Tyr_kinase_cat_dom.
DR InterPro; IPR008266; Tyr_kinase_AS.
DR InterPro; IPR020635; Tyr_kinase_cat_dom.
DR InterPro; IPR001824; Tyr_kinase_rcpt_3_CS.
DR PANTHER; PTHR24416:SF599; MAST_STEM CELL GROWTH FACTOR RECEPTOR; 1.
DR PANTHER; PTHR24416; TYROSINE-PROTEIN KINASE RECEPTOR; 1.
DR Pfam; PF07679; I-set; 1.
DR Pfam; PF13927; Ig_3; 1.
DR Pfam; PF25305; Ig_PDGFR_d4; 1.
DR Pfam; PF07714; PK_Tyr_Ser-Thr; 1.
DR PIRSF; PIRSF500951; SCGF_recepter; 1.
DR PIRSF; PIRSF000615; TyrPK_CSF1-R; 1.
DR SMART; SM00409; IG; 4.
DR SMART; SM00408; IGc2; 2.
DR SMART; SM00219; TyrKc; 1.
DR SUPFAM; SSF48726; Immunoglobulin; 4.
DR SUPFAM; SSF56112; Protein kinase-like (PK-like); 1.
DR PROSITE; PS50835; IG_LIKE; 2.
DR PROSITE; PS00107; PROTEIN_KINASE_ATP; 1.
DR PROSITE; PS50011; PROTEIN_KINASE_DOM; 1.
DR PROSITE; PS00109; PROTEIN_KINASE_TYR; 1.
DR PROSITE; PS00240; RECEPTOR_TYR_KIN_III; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|PIRNR:PIRNR500951};
KW Cell membrane {ECO:0000256|ARBA:ARBA00022475,
KW ECO:0000256|PIRNR:PIRNR500951};
KW Disulfide bond {ECO:0000256|ARBA:ARBA00023157};
KW Glycoprotein {ECO:0000256|ARBA:ARBA00023180};
KW Immunoglobulin domain {ECO:0000256|ARBA:ARBA00023319,
KW ECO:0000256|RuleBase:RU000311};
KW Kinase {ECO:0000256|ARBA:ARBA00022777, ECO:0000256|PIRNR:PIRNR500951};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|PIRNR:PIRNR500951};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|PIRNR:PIRNR500951};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|PIRNR:PIRNR500951};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741,
KW ECO:0000256|PIRNR:PIRNR500951};
KW Phosphoprotein {ECO:0000256|ARBA:ARBA00022553};
KW Receptor {ECO:0000256|ARBA:ARBA00023170, ECO:0000256|PIRNR:PIRNR500951};
KW Reference proteome {ECO:0000313|Proteomes:UP000005207};
KW Repeat {ECO:0000256|ARBA:ARBA00022737};
KW Signal {ECO:0000256|PIRNR:PIRNR500951};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR500951};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692,
KW ECO:0000256|PIRNR:PIRNR500951};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989,
KW ECO:0000256|PIRNR:PIRNR500951};
KW Tyrosine-protein kinase {ECO:0000256|ARBA:ARBA00023137,
KW ECO:0000256|PIRNR:PIRNR500951};
KW Ubl conjugation {ECO:0000256|ARBA:ARBA00022843}.
FT SIGNAL 1..21
FT /evidence="ECO:0000256|PIRNR:PIRNR500951"
FT CHAIN 22..955
FT /note="Mast/stem cell growth factor receptor"
FT /evidence="ECO:0000256|PIRNR:PIRNR500951"
FT /id="PRO_5025720950"
FT TRANSMEM 519..543
FT /note="Helical"
FT /evidence="ECO:0000256|PIRNR:PIRNR500951"
FT DOMAIN 23..94
FT /note="Ig-like"
FT /evidence="ECO:0000259|PROSITE:PS50835"
FT DOMAIN 211..306
FT /note="Ig-like"
FT /evidence="ECO:0000259|PROSITE:PS50835"
FT DOMAIN 587..901
FT /note="Protein kinase"
FT /evidence="ECO:0000259|PROSITE:PS50011"
FT REGION 699..731
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 704..715
FT /note="Low complexity"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 766
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-1"
FT BINDING 594..601
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 621
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2,
FT ECO:0000256|PROSITE-ProRule:PRU10141"
FT BINDING 669..675
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 770
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 771
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT BINDING 784
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT SITE 910
FT /note="Important for interaction with phosphotyrosine-
FT binding proteins"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-4"
SQ SEQUENCE 955 AA; 107446 MW; 859D39F7F328EFD9 CRC64;
MRIRWALCAS YFILLPLTVW SEPLISPSGP HIVVPKRGKL ELRCYDNATT SGAPPRLRWY
RDKSRKLDGE VQEGNVAFVK LSATQLNHMG RYICVNNITL EQSSIYVYVK DPYNAFLHIM
INIKLVREGD SCTIPCLVTD PEVTHLGLET CDGRPLPSGM RYKSDLQEGI TINNIQKEYD
GCYVCVGLLH GVKVMSSKYN LEVRLVPELR PVITLSQKDK VILRTGEQFE LTCSSSNVNA
DVILKWDFPS TAHPFETQTS HILSGGLGYE RSTSLLIPAV NQSDSGTYRC HAHNERGRSD
EAMELKVYDQ GFIKMLVSQS PVQEEVKEGE SLSLKVEFDA YPAPSFMSWS YNGKILHNTT
EHVITLHRNK YRYSSKLRLV RVLGSEGGIY NFSASHKDAS VDHSFHVYVN SKPVITAQEG
PVDGQVRCIA AGYPVPKISW YFCELPRTRC SQLPNATQWE TSEITVLSES TFGRSQVESR
LNVSKEFTQY HTLECVASTE EAEAFTLFSI SERVVPHKLF TPLLTGMVAT GVILSLVLVV
LLYKYLQKPK FQIQWKVIET VHGNNHIYID PTQLPYDSKW EFPRQKLRFG KTLGSGAFGK
VVRATAYGLC SADAVTTVAV KMLKPNAHST EKEALMSELK VLIYLGNHVN IVNLLGACTV
GGPILVITEY CCYGDLLNFL RRKRESFLNS RAGDGYYHNV SNPTESTSSE ATGTGYMPMR
PSEKERSSES DDIDELSLDA EDLLSFSYQV AKGMEYITSR NCIHRDLAAR NILLTHGRVA
KICDFGLARD ITTDASYVLR GNARLPVKWM SPESIFDCVY TIESDVWSYG ILLWEIFSLG
NSPYPGMQVG SAFYRMIQEG HRMSRPEYAP TEMYDMMLSC WNHDPLKRPS FKKLVEKTEL
LLSENTKNVY LTLSNASGPP EQQRAPSRRL SSVCSTTAPN QPLLQNTADV FLDYV
//
