Descriptions

Fibroblast growth factor receptor 3 (FGFR3) is one of the members of FGFR family belonging to the receptor tyrosine kinases (RTK) in cell proliferation, differentiation, migration, and maintenance of cellular homeostasis. FGFR3 consists of the ligand-binding region (immunoglobulin (Ig) domain 1-like domains) designated D1, D2, and D3, and a kinase domain. The D1 domain and the acid box (AB)-containing linker between D1 and D2 are involved in autoinhibition. Loss of D1 or the linker enhances the affinity of FGFR for FGF and HS and increases the signaling capacity of FGFR. Specifically, the AB region blocks the heparan sulfate (HS)-binding site on the D2 domain in cis to suppress HS-binding affinity of EGFR. D1 is dispensable for autoinhibition but plays a minor role in autoinhibition.

Autoinhibitory domains (AIDs)

Target domain

256-353 (D2 domain)

Relief mechanism

Others

Assay

Accessory elements

740-765 (Activation loop from InterPro)

Target domain

578-854 (Serine-threonine/tyrosine-protein kinase, catalytic domain)

Relief mechanism

Assay

740-765 (Activation loop from InterPro)

Target domain

578-854 (Serine-threonine/tyrosine-protein kinase, catalytic domain)

Relief mechanism

Assay

References

Autoinhibited structure

Activated structure

1 structures for Q90413

Entry ID Method Resolution Chain Position Source
AF-Q90413-F1 Predicted AlphaFoldDB

No variants for Q90413

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for Q90413

No associated diseases with Q90413

2 regional properties for Q90413

Type Name Position InterPro Accession
domain Ets domain 340 - 425 IPR000418
domain PEA3-type ETS-domain transcription factor, N-terminal 7 - 339 IPR006715

Functions

Description
EC Number 2.7.10.1 Protein-tyrosine kinases
Subcellular Localization
  • Cell membrane ; Single-pass type I membrane protein
  • Endosome
  • Endoplasmic reticulum
  • Internalized from the cell membrane to recycling endosomes, and from there back to the cell membrane
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

4 GO annotations of cellular component

Name Definition
endoplasmic reticulum The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
endosome A vacuole to which materials ingested by endocytosis are delivered.
plasma membrane The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
receptor complex Any protein complex that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.

3 GO annotations of molecular function

Name Definition
ATP binding Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
fibroblast growth factor binding Binding to a fibroblast growth factor.
fibroblast growth factor receptor activity Combining with a fibroblast growth factor receptor ligand and transmitting the signal across the plasma membrane to initiate a change in cell activity.

5 GO annotations of biological process

Name Definition
fibroblast growth factor receptor signaling pathway The series of molecular signals generated as a consequence of a fibroblast growth factor receptor binding to one of its physiological ligands.
phosphorylation The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide.
positive regulation of ERK1 and ERK2 cascade Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the ERK1 and ERK2 cascade.
regulation of bile acid biosynthetic process Any process that modulates the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of bile acids.
regulation of hematopoietic stem cell differentiation Any process that modulates the frequency, rate or extent of hematopoietic stem cell differentiation.

77 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
P43481 KIT Mast/stem cell growth factor receptor Kit Bos taurus (Bovine) SS
Q06805 TIE1 Tyrosine-protein kinase receptor Tie-1 Bos taurus (Bovine) PR
Q06807 TEK Angiopoietin-1 receptor Bos taurus (Bovine) SS
Q28889 KIT Mast/stem cell growth factor receptor Kit Felis catus (Cat) (Felis silvestris catus) SS
P13369 CSF1R Macrophage colony-stimulating factor 1 receptor Felis catus (Cat) (Felis silvestris catus) SS
P18460 FGFR3 Fibroblast growth factor receptor 3 Gallus gallus (Chicken) SS
P21804 FGFR1 Fibroblast growth factor receptor 1 Gallus gallus (Chicken) SS
Q9PUF6 PDGFRA Platelet-derived growth factor receptor alpha Gallus gallus (Chicken) SS
Q08156 KIT Mast/stem cell growth factor receptor Kit Gallus gallus (Chicken) SS
Q8QHL3 FLT1 Vascular endothelial growth factor receptor 1 Gallus gallus (Chicken) SS
P18461 FGFR2 Fibroblast growth factor receptor 2 Gallus gallus (Chicken) SS
Q07407 htl Fibroblast growth factor receptor homolog 1 Drosophila melanogaster (Fruit fly) PR
Q6J9G0 STYK1 Tyrosine-protein kinase STYK1 Homo sapiens (Human) PR
P36888 FLT3 Receptor-type tyrosine-protein kinase FLT3 Homo sapiens (Human) EV
P16234 PDGFRA Platelet-derived growth factor receptor alpha Homo sapiens (Human) EV
P09619 PDGFRB Platelet-derived growth factor receptor beta Homo sapiens (Human) EV
P35916 FLT4 Vascular endothelial growth factor receptor 3 Homo sapiens (Human) SS
P35968 KDR Vascular endothelial growth factor receptor 2 Homo sapiens (Human) EV
P17948 FLT1 Vascular endothelial growth factor receptor 1 Homo sapiens (Human) SS
P07333 CSF1R Macrophage colony-stimulating factor 1 receptor Homo sapiens (Human) SS
P10721 KIT Mast/stem cell growth factor receptor Kit Homo sapiens (Human) EV
P22607 FGFR3 Fibroblast growth factor receptor 3 Homo sapiens (Human) EV
P07949 RET Proto-oncogene tyrosine-protein kinase receptor Ret Homo sapiens (Human) EV
P35590 TIE1 Tyrosine-protein kinase receptor Tie-1 Homo sapiens (Human) PR
Q02763 TEK Angiopoietin-1 receptor Homo sapiens (Human) SS
P11362 FGFR1 Fibroblast growth factor receptor 1 Homo sapiens (Human) EV
P21802 FGFR2 Fibroblast growth factor receptor 2 Homo sapiens (Human) EV
P22455 FGFR4 Fibroblast growth factor receptor 4 Homo sapiens (Human) SS
P05532 Kit Mast/stem cell growth factor receptor Kit Mus musculus (Mouse) PR
Q91V87 Fgfrl1 Fibroblast growth factor receptor-like 1 Mus musculus (Mouse) PR
P35917 Flt4 Vascular endothelial growth factor receptor 3 Mus musculus (Mouse) SS
P05622 Pdgfrb Platelet-derived growth factor receptor beta Mus musculus (Mouse) SS
P09581 Csf1r Macrophage colony-stimulating factor 1 receptor Mus musculus (Mouse) SS
P35969 Flt1 Vascular endothelial growth factor receptor 1 Mus musculus (Mouse) SS
P35546 Ret Proto-oncogene tyrosine-protein kinase receptor Ret Mus musculus (Mouse) SS
Q06806 Tie1 Tyrosine-protein kinase receptor Tie-1 Mus musculus (Mouse) SS
Q00342 Flt3 Receptor-type tyrosine-protein kinase FLT3 Mus musculus (Mouse) SS
Q6J9G1 Styk1 Tyrosine-protein kinase STYK1 Mus musculus (Mouse) PR
P16092 Fgfr1 Fibroblast growth factor receptor 1 Mus musculus (Mouse) SS
Q61851 Fgfr3 Fibroblast growth factor receptor 3 Mus musculus (Mouse) PR
Q02858 Tek Angiopoietin-1 receptor Mus musculus (Mouse) SS
P35918 Kdr Vascular endothelial growth factor receptor 2 Mus musculus (Mouse) PR
P21803 Fgfr2 Fibroblast growth factor receptor 2 Mus musculus (Mouse) SS
P26618 Pdgfra Platelet-derived growth factor receptor alpha Mus musculus (Mouse) SS
Q03142 Fgfr4 Fibroblast growth factor receptor 4 Mus musculus (Mouse) PR
Q2HWD6 KIT Mast/stem cell growth factor receptor Kit Sus scrofa (Pig) SS
Q7TQM3 Fgfrl1 Fibroblast growth factor receptor-like 1 Rattus norvegicus (Rat) PR
P53767 Flt1 Vascular endothelial growth factor receptor 1 Rattus norvegicus (Rat) PR
P20786 Pdgfra Platelet-derived growth factor receptor alpha Rattus norvegicus (Rat) SS
Q91ZT1 Flt4 Vascular endothelial growth factor receptor 3 Rattus norvegicus (Rat) SS
Q04589 Fgfr1 Fibroblast growth factor receptor 1 Rattus norvegicus (Rat) SS
G3V9H8 Ret Proto-oncogene tyrosine-protein kinase receptor Ret Rattus norvegicus (Rat) SS
Q05030 Pdgfrb Platelet-derived growth factor receptor beta Rattus norvegicus (Rat) SS
O08775 Kdr Vascular endothelial growth factor receptor 2 Rattus norvegicus (Rat) SS
Q498D6 Fgfr4 Fibroblast growth factor receptor 4 Rattus norvegicus (Rat) PR
Q17833 old-1 Tyrosine-protein kinase receptor old-1 Caenorhabditis elegans PR
Q19238 F09A5.2 Putative tyrosine-protein kinase F09A5.2 Caenorhabditis elegans SS
P34892 kin-16 Receptor-like tyrosine-protein kinase kin-16 Caenorhabditis elegans PR
G5ED65 ver-1 Protein ver-1 Caenorhabditis elegans PR
Q10656 egl-15 Myoblast growth factor receptor egl-15 Caenorhabditis elegans PR
Q9LDQ3 CRK34 Cysteine-rich receptor-like protein kinase 34 Arabidopsis thaliana (Mouse-ear cress) PR
E7F3X9 ddr1 receptor protein-tyrosine kinase Danio rerio (Zebrafish) (Brachydanio rerio) SS
Q8AXB3 kdrl Vascular endothelial growth factor receptor kdr-like Danio rerio (Zebrafish) (Brachydanio rerio) SS
Q5GIT4 kdr Vascular endothelial growth factor receptor 2 Danio rerio (Zebrafish) (Brachydanio rerio) SS
O13146 epha3 Ephrin type-A receptor 3 Danio rerio (Zebrafish) (Brachydanio rerio) SS
O73878 ephb4b Ephrin type-B receptor 4b Danio rerio (Zebrafish) (Brachydanio rerio) SS
F1QVU0 ltk Tyrosine-protein kinase receptor Danio rerio (Zebrafish) (Brachydanio rerio) SS
Q90Z00 fgfr1a Fibroblast growth factor receptor 1-A Danio rerio (Zebrafish) (Brachydanio rerio) SS
O73791 tek Angiopoietin-1 receptor Danio rerio (Zebrafish) (Brachydanio rerio) SS
Q8JFR5 kita Mast/stem cell growth factor receptor kita Danio rerio (Zebrafish) (Brachydanio rerio) SS
Q9I8N6 csf1r Macrophage colony-stimulating factor 1 receptor Danio rerio (Zebrafish) (Brachydanio rerio) SS
Q9DE49 pdgfra Platelet-derived growth factor receptor alpha Danio rerio (Zebrafish) (Brachydanio rerio) SS
Q5MD89 flt4 Vascular endothelial growth factor receptor 3 Danio rerio (Zebrafish) (Brachydanio rerio) SS
O13147 ephb3 Ephrin type-B receptor 3 Danio rerio (Zebrafish) (Brachydanio rerio) SS
Q9YI66 tyro3 Tyrosine-protein kinase receptor TYRO3 Danio rerio (Zebrafish) (Brachydanio rerio) PR
Q8JG38 fgfr2 Fibroblast growth factor receptor 2 Danio rerio (Zebrafish) (Brachydanio rerio) SS
Q9I8X3 fgfr3 Fibroblast growth factor receptor 3 Danio rerio (Zebrafish) (Brachydanio rerio) PR
10 20 30 40 50 60
MLSILKVFIA ICFMELVCSR SITSGEPRAK DIRVSRHILT PGYPENATVL VGGHVKLVCK
70 80 90 100 110 120
LHQPASTRLQ WFKKDSNRLG PDGSPVLTAL TPLLENLSKV NIFPLVNISL EDAGEYVCKA
130 140 150 160 170 180
ENSAGQATRS AWVEVLSEVS EEPTEEPSEH LLLELGDVLK LRCDTNRPGA VQWFKSGVRV
190 200 210 220 230 240
QHNARIQIRA AVMEIADVTY EDSGVYVCML RGTKEALRNF TITVADAVGS GDDDDEDNGL
250 260 270 280 290 300
DDIGPETEND QVYISRAPYW THTQRMEKKL YAVPAGNTVK FRCPATGSPL PTIRWLKNGR
310 320 330 340 350 360
EFRGEHRIGG IKLRHQHWSL VMESVVPSDR GNYSCVVENK YGSIAHTYLL DVLERSPHRP
370 380 390 400 410 420
ILQAGLPKNT TAIVGGDAQF LCKVYSDAQP HIQWLKHIEM NGSRYGPDGI PYVKIVKTGS
430 440 450 460 470 480
LNMSEVEVLY LTNISMEDAG EYSCLAGNSI GFSHQSAWLT VLSEEDVAKE VDLMEAKYTD
490 500 510 520 530 540
IIIYASGFLA LVMAIVIVVL CRMQVHPSRE PFDTLPVQKL SKFPLRRQYS VESNSSGKSS
550 560 570 580 590 600
ASLMRVARLS SSCSPMLAGV MEFELPYDPD WEFPRENLTL GKPLGEGCFG QVVRAEAYGI
610 620 630 640 650 660
NKENQDHMAT VAVKMLKDDA TDKDLADLIS EMELMKVMDK HKNIINLLGV CTQDGPLYVL
670 680 690 700 710 720
VEYASKGSLR EYLRARRPPG MDYTFDVTKV PEEQLTFKDL VSCAYQVARG MEYLASKRCI
730 740 750 760 770 780
HRDLAARNVL VTEDNVMKIA DFGLARGVHQ IDYYKKTTNG RMPVKWMAPE ALFDRVYTHQ
790 800 810 820 830 840
SDVWSFGVLM WEIFTLGGSP YPGIPVEELF KLLKEGHRMD KPSNCTHELY MKMRECWHAV
850 860 870 880 890 900
PTQRPTFKQL VEELDRVLVS ISDEYLDLST PFEQYSPSCE DTSSSCSSDN DSVFTHDALS
910 920
TEPCLLGYHD VHSRMDLKTT MR