ID M4A2E6_XIPMA Unreviewed; 963 AA.
AC M4A2E6;
DT 01-MAY-2013, integrated into UniProtKB/TrEMBL.
DT 05-DEC-2018, sequence version 2.
DT 28-JAN-2026, entry version 87.
DE RecName: Full=receptor protein-tyrosine kinase {ECO:0000256|ARBA:ARBA00011902};
DE EC=2.7.10.1 {ECO:0000256|ARBA:ARBA00011902};
OS Xiphophorus maculatus (Southern platyfish) (Platypoecilus maculatus).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata;
OC Ovalentaria; Atherinomorphae; Cyprinodontiformes; Poeciliidae; Poeciliinae;
OC Xiphophorus.
OX NCBI_TaxID=8083 {ECO:0000313|Ensembl:ENSXMAP00000008640.2, ECO:0000313|Proteomes:UP000002852};
RN [1] {ECO:0000313|Proteomes:UP000002852}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JP 163 A {ECO:0000313|Proteomes:UP000002852};
RA Walter R., Schartl M., Warren W.;
RL Submitted (JAN-2012) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|Proteomes:UP000002852}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JP 163 A {ECO:0000313|Proteomes:UP000002852};
RX PubMed=23542700; DOI=10.1038/ng.2604;
RA Schartl M., Walter R.B., Shen Y., Garcia T., Catchen J., Amores A.,
RA Braasch I., Chalopin D., Volff J.N., Lesch K.P., Bisazza A., Minx P.,
RA Hillier L., Wilson R.K., Fuerstenberg S., Boore J., Searle S.,
RA Postlethwait J.H., Warren W.C.;
RT "The genome of the platyfish, Xiphophorus maculatus, provides insights into
RT evolutionary adaptation and several complex traits.";
RL Nat. Genet. 45:567-572(2013).
RN [3] {ECO:0000313|Ensembl:ENSXMAP00000008640.2}
RP IDENTIFICATION.
RC STRAIN=JP 163 A {ECO:0000313|Ensembl:ENSXMAP00000008640.2};
RG Ensembl;
RL Submitted (AUG-2025) to UniProtKB.
RN [4] {ECO:0000313|Ensembl:ENSXMAP00000008640.2}
RP IDENTIFICATION.
RC STRAIN=JP 163 A {ECO:0000313|Ensembl:ENSXMAP00000008640.2};
RG Ensembl;
RL Submitted (SEP-2025) to UniProtKB.
CC -!- FUNCTION: Tyrosine-protein kinase that acts as a cell-surface receptor
CC for CSF1 and plays an essential role in the regulation of survival,
CC proliferation and differentiation of hematopoietic precursor cells,
CC especially mononuclear phagocytes, such as macrophages and monocytes.
CC Plays an important role in innate immunity and in inflammatory
CC processes. Plays an important role in the regulation of osteoclast
CC proliferation and differentiation, the regulation of bone resorption,
CC and is required for normal bone development. Promotes reorganization of
CC the actin cytoskeleton, regulates formation of membrane ruffles, cell
CC adhesion and cell migration. Activates several signaling pathways in
CC response to ligand binding. {ECO:0000256|ARBA:ARBA00058066}.
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 -!- SUBUNIT: Monomer. Homodimer. Interacts with CSF1.
CC {ECO:0000256|ARBA:ARBA00062014}.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000256|ARBA:ARBA00004251};
CC Single-pass type I membrane protein {ECO:0000256|ARBA:ARBA00004251}.
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DR AlphaFoldDB; M4A2E6; -.
DR Ensembl; ENSXMAT00000008653.2; ENSXMAP00000008640.2; ENSXMAG00000008588.2.
DR eggNOG; KOG0200; Eukaryota.
DR GeneTree; ENSGT00940000155506; -.
DR HOGENOM; CLU_000288_49_0_1; -.
DR Proteomes; UP000002852; Unassembled WGS sequence.
DR GO; GO:1990682; C:CSF1-CSF1R complex; IEA:TreeGrafter.
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:InterPro.
DR GO; GO:0019838; F:growth factor binding; IEA:TreeGrafter.
DR GO; GO:0005011; F:macrophage colony-stimulating factor receptor activity; IEA:TreeGrafter.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0048513; P:animal organ development; IEA:UniProtKB-ARBA.
DR GO; GO:0007169; P:cell surface receptor protein tyrosine kinase signaling pathway; IEA:TreeGrafter.
DR GO; GO:0006954; P:inflammatory response; IEA:UniProtKB-KW.
DR GO; GO:0045087; P:innate immune response; IEA:UniProtKB-KW.
DR GO; GO:0030318; P:melanocyte differentiation; IEA:UniProtKB-ARBA.
DR GO; GO:0097324; P:melanocyte migration; IEA:UniProtKB-ARBA.
DR GO; GO:0030316; P:osteoclast differentiation; IEA:TreeGrafter.
DR GO; GO:0030335; P:positive regulation of cell migration; IEA:TreeGrafter.
DR GO; GO:0022603; P:regulation of anatomical structure morphogenesis; IEA:UniProtKB-ARBA.
DR GO; GO:1905521; P:regulation of macrophage migration; IEA:UniProtKB-ARBA.
DR GO; GO:0043408; P:regulation of MAPK cascade; IEA:TreeGrafter.
DR FunFam; 2.60.40.10:FF:002103; Colony-stimulating factor 1 receptor, a; 1.
DR FunFam; 2.60.40.10:FF:001029; Macrophage colony-stimulating factor 1 receptor; 1.
DR FunFam; 2.60.40.10:FF:002322; macrophage colony-stimulating factor 1 receptor; 1.
DR FunFam; 1.10.510.10:FF:000177; Mast/stem cell growth factor receptor; 1.
DR FunFam; 3.30.200.20:FF:000025; Platelet-derived growth factor receptor alpha; 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; IPR030658; CSF-1_receptor.
DR InterPro; IPR007110; Ig-like_dom.
DR InterPro; IPR036179; Ig-like_dom_sf.
DR InterPro; IPR013783; Ig-like_fold.
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; IPR001245; Ser-Thr/Tyr_kinase_cat_dom.
DR InterPro; IPR008266; Tyr_kinase_AS.
DR InterPro; IPR020635; Tyr_kinase_cat_dom.
DR PANTHER; PTHR24416:SF47; MACROPHAGE COLONY-STIMULATING FACTOR 1 RECEPTOR; 1.
DR PANTHER; PTHR24416; TYROSINE-PROTEIN KINASE RECEPTOR; 1.
DR Pfam; PF25305; Ig_PDGFR_d4; 1.
DR Pfam; PF07714; PK_Tyr_Ser-Thr; 1.
DR PIRSF; PIRSF500947; CSF-1_receptor; 1.
DR PIRSF; PIRSF000615; TyrPK_CSF1-R; 1.
DR PRINTS; PR01832; VEGFRECEPTOR.
DR SMART; SM00409; IG; 4.
DR SMART; SM00408; IGc2; 1.
DR SMART; SM00219; TyrKc; 1.
DR SUPFAM; SSF48726; Immunoglobulin; 4.
DR SUPFAM; SSF56112; Protein kinase-like (PK-like); 1.
DR PROSITE; PS50835; IG_LIKE; 1.
DR PROSITE; PS00107; PROTEIN_KINASE_ATP; 1.
DR PROSITE; PS50011; PROTEIN_KINASE_DOM; 1.
DR PROSITE; PS00109; PROTEIN_KINASE_TYR; 1.
PE 4: Predicted;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|PIRSR:PIRSR000615-
KW 2}; Cell membrane {ECO:0000256|ARBA:ARBA00022475};
KW Disulfide bond {ECO:0000256|ARBA:ARBA00023157,
KW ECO:0000256|PIRSR:PIRSR500947-52};
KW Glycoprotein {ECO:0000256|ARBA:ARBA00023180};
KW Immunity {ECO:0000256|ARBA:ARBA00022859};
KW Immunoglobulin domain {ECO:0000256|ARBA:ARBA00023319};
KW Inflammatory response {ECO:0000256|ARBA:ARBA00023198};
KW Innate immunity {ECO:0000256|ARBA:ARBA00022588};
KW Kinase {ECO:0000256|ARBA:ARBA00022777};
KW Magnesium {ECO:0000256|PIRSR:PIRSR000615-3};
KW Membrane {ECO:0000256|ARBA:ARBA00023136};
KW Metal-binding {ECO:0000256|PIRSR:PIRSR000615-3};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741,
KW ECO:0000256|PIRSR:PIRSR000615-2};
KW Phosphoprotein {ECO:0000256|ARBA:ARBA00022553};
KW Receptor {ECO:0000256|ARBA:ARBA00023170};
KW Reference proteome {ECO:0000313|Proteomes:UP000002852};
KW Repeat {ECO:0000256|ARBA:ARBA00022737};
KW Signal {ECO:0000256|ARBA:ARBA00022729};
KW Transferase {ECO:0000256|ARBA:ARBA00022679};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989};
KW Tyrosine-protein kinase {ECO:0000256|ARBA:ARBA00023137};
KW Ubl conjugation {ECO:0000256|ARBA:ARBA00022843}.
FT DOMAIN 208..302
FT /note="Ig-like"
FT /evidence="ECO:0000259|PROSITE:PS50835"
FT DOMAIN 575..907
FT /note="Protein kinase"
FT /evidence="ECO:0000259|PROSITE:PS50011"
FT REGION 719..738
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 771
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-1"
FT BINDING 554
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT BINDING 581..589
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR500947-51"
FT BINDING 582..589
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 609
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2,
FT ECO:0000256|PROSITE-ProRule:PRU10141"
FT BINDING 657..663
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 775
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 776
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT BINDING 789
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT SITE 918
FT /note="Important for interaction with phosphotyrosine-
FT binding proteins"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-4"
FT DISULFID 42..86
FT /evidence="ECO:0000256|PIRSR:PIRSR500947-52"
FT DISULFID 133..182
FT /evidence="ECO:0000256|PIRSR:PIRSR500947-52"
FT DISULFID 229..286
FT /evidence="ECO:0000256|PIRSR:PIRSR500947-52"
FT DISULFID 427..496
FT /evidence="ECO:0000256|PIRSR:PIRSR500947-52"
SQ SEQUENCE 963 AA; 109444 MW; 5817B270E58705BD CRC64;
PFFTLFLFFP CLEWKPIIKV NSKVVTGPEV VVKAGRPLDL RCEGNRPVNW QPRLPKHKRY
VSRGNGNVRI FKVERSSAEF TGTYKCFYTA NPDFNNLTSS LHVYVKDPQR VFWTSSTSLR
VVIKEGENFL LPCLLTDPSA TDLGLRMDNG TTVPPGMNFT VDRHRGILIH SLHPSFNADY
VCTAMVNGAE RTSKAFSINV IQKLRFPPYV FLETDEYVRI VGEEIKIRCT THNPNFNYNV
TWKYITKSVS GRLEETVRSN GENRLDIQSI LTISAVDLAD TGNISCIGTN EAGVNSTTTY
LLVVDKPYIR LLPQLSPKLT LKGLSVVVKE GEDLELSLLI EAYPHITEHG WLTPTPPNTS
TQEHKFIRYN NRYLATLQVK RMNIQEQGQY TFHAKSDLTD ASISFQVQMY QRPNAVVRWE
NITTLTCTSF GYPAPRIIWY QCLGIRPTCN ENTSGLQLAI PLQAPTVEVQ REEYGAVEVE
SVLTVGPSSQ RMTVECVAFN LVGVSRDTLA MEVSDCNHSF SLSGTLKVFS DFNLQKPRYE
IRWKIIEARD GNNYTFIDPT QLPYNEKWEF PRDKLKLGKI LGAGAFGKVV EATAYGLGKE
DNVMRVAVKM LKASAHSDER EALMSELKIL SHLGHHKHIV NLLGACTYGG PVLVITEYCS
LGDLLNFLRQ KAETFVNFFM NIPEIDESSN DYKNICIQKQ FVRSDSGISS FASSSYLEMR
PSQLPNTEQS RESDCEETGD WPLDIDDLLR FSLQVAQGLD FLAAKNCIHR DVAARNVLLT
SRREAKICDF GLARDIMNDS NYVVKGNARL PVKWMAPESI FDCVYTVQSD VWSYGILLWE
IFSLGQSPYP SMAVDTRFYK MVKRGYQMSQ PDFAPLEMYA IMKMCWNLEP TKRPTFSKIR
QMIEKLLGGH LEEEQVIYQN MQQEVTEADA YDKPKCHDGP CDQSCDHEEE EQPLMKTNNY
QFC
//
