FGFR4
Receptor 4 faktora rasta fibroblasta jest protein/enzim koji je kod ljudi kodiran genom FGFR4 sa hromosoma 5. Označava se i kao CD334 (klaster diferencjjacije 334).
Aminokiselinska sekvenca
urediDužina polipeptidnog lanca je 802 aminokiseline, а molekulska težina 87.954 Da.[5]
10 | 20 | 30 | 40 | 50 | ||||
---|---|---|---|---|---|---|---|---|
MRLLLALLGV | LLSVPGPPVL | SLEASEEVEL | EPCLAPSLEQ | QEQELTVALG | ||||
QPVRLCCGRA | ERGGHWYKEG | SRLAPAGRVR | GWRGRLEIAS | FLPEDAGRYL | ||||
CLARGSMIVL | QNLTLITGDS | LTSSNDDEDP | KSHRDPSNRH | SYPQQAPYWT | ||||
HPQRMEKKLH | AVPAGNTVKF | RCPAAGNPTP | TIRWLKDGQA | FHGENRIGGI | ||||
RLRHQHWSLV | MESVVPSDRG | TYTCLVENAV | GSIRYNYLLD | VLERSPHRPI | ||||
LQAGLPANTT | AVVGSDVELL | CKVYSDAQPH | IQWLKHIVIN | GSSFGADGFP | ||||
YVQVLKTADI | NSSEVEVLYL | RNVSAEDAGE | YTCLAGNSIG | LSYQSAWLTV | ||||
LPEEDPTWTA | AAPEARYTDI | ILYASGSLAL | AVLLLLAGLY | RGQALHGRHP | ||||
RPPATVQKLS | RFPLARQFSL | ESGSSGKSSS | SLVRGVRLSS | SGPALLAGLV | ||||
SLDLPLDPLW | EFPRDRLVLG | KPLGEGCFGQ | VVRAEAFGMD | PARPDQASTV | ||||
AVKMLKDNAS | DKDLADLVSE | MEVMKLIGRH | KNIINLLGVC | TQEGPLYVIV | ||||
ECAAKGNLRE | FLRARRPPGP | DLSPDGPRSS | EGPLSFPVLV | SCAYQVARGM | ||||
QYLESRKCIH | RDLAARNVLV | TEDNVMKIAD | FGLARGVHHI | DYYKKTSNGR | ||||
LPVKWMAPEA | LFDRVYTHQS | DVWSFGILLW | EIFTLGGSPY | PGIPVEELFS | ||||
LLREGHRMDR | PPHCPPELYG | LMRECWHAAP | SQRPTFKQLV | EALDKVLLAV | ||||
SEEYLDLRLT | FGPYSPSGGD | ASSTCSSSDS | VFSHDPLPLG | SSSFPFGSGV | ||||
QT |
Funkcija
urediProtein kodiran ovim genom član je porodice receptora faktora rasta fibroblasta, gdje je aminokiselinska sekvenca visoko konzervirana između članova i tokom evolucije. Članovi porodice FGFR međusobno se razlikuju po svojim ligandnim afinitetima i tkivnoj raspodjeli. Reprezentativni protein pune dužine sastojao bi se od vanćelijske regije, sastavljene od tri imunoglobulinu slična domena, jednog hidrofobnog segmenta koji pokriva membranu i citoplazmatskog domena tirozin-kinaze. Vanćelijski dio proteina stupa u interakciju s faktorima rasta fibroblasta, pokrećući kaskadu nizvodnih signala, što na kraju utiče na mitogenezu i diferencijaciju.
Genomska organizacija ovog gena, u poređenju sa članovima 1-3, obuhvaTa 18 egzona umjesto 19 ili 20. Iako je primijećena alternativna prerada, nema dokaza da je C-terminalna polovina domena IgIII ovog proteina varira između tri alternativna oblika, kako je naznačeno za članove 1-3. Ovaj član porodice prvenstveno veže kiseli faktor rasta fibroblasta i, iako je njegova specifična funkcija nepoznata, prekomjerno je izražen u uzorcima tumora ženskih reproduktivnih organa, što ukazuje na ulogu u tumorigenezi dojke i jajnika.[6] U meta-analizi, uočeno je da je funkcionalni polimorfizam Gly388Arg (rs351855) FGFR4 značajno povezan sa zahvatanjem čvorova i ukupnim preživljavanjem kod pacijenata sa različitim tipovima raka.[7]
Interakcije
urediPokazano je da receptor 4 faktora rasta fibroblasta stupa u interakcije sa FGF1.[8][9]
Reference
uredi- ^ a b c GRCh38: Ensembl release 89: ENSG00000160867 - Ensembl, maj 2017
- ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000005320 - Ensembl, maj 2017
- ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
- ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
- ^ "UniProt, P22455" (jezik: англ.). Pristupljeno 15. 10. 2021.CS1 održavanje: nepoznati jezik (link)
- ^ "Entrez Gene: FGFR4 fibroblast growth factor receptor 4".
- ^ Frullanti, E (2011). "Meta and pooled analyses of FGFR4 Gly388Arg polymorphism as a cancer prognostic factor". Eur J Cancer Prev. 20 (4): 340–347. doi:10.1097/CEJ.0b013e3283457274. PMID 21412156. S2CID 29668012.
- ^ Loo, B B; Darwish K K; Vainikka S S; Saarikettu J J; Vihko P P; Hermonen J J; Goldman A A; Alitalo K K; Jalkanen M M (maj 2000). "Production and characterization of the extracellular domain of recombinant human fibroblast growth factor receptor 4". Int. J. Biochem. Cell Biol. ENGLAND. 32 (5): 489–97. doi:10.1016/S1357-2725(99)00145-4. ISSN 1357-2725. PMID 10736564.
- ^ Kan, M; Wu X; Wang F; McKeehan W L (maj 1999). "Specificity for fibroblast growth factors determined by heparan sulfate in a binary complex with the receptor kinase". J. Biol. Chem. UNITED STATES. 274 (22): 15947–52. doi:10.1074/jbc.274.22.15947. ISSN 0021-9258. PMID 10336501.
Dopunska literatura
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- Vainikka S, Partanen J, Bellosta P, et al. (1992). "Fibroblast growth factor receptor-4 shows novel features in genomic structure, ligand binding and signal transduction". EMBO J. 11 (12): 4273–80. doi:10.1002/j.1460-2075.1992.tb05526.x. PMC 557000. PMID 1385111.
- Partanen J, Mäkelä TP, Eerola E, et al. (1991). "FGFR-4, a novel acidic fibroblast growth factor receptor with a distinct expression pattern". EMBO J. 10 (6): 1347–54. doi:10.1002/j.1460-2075.1991.tb07654.x. PMC 452793. PMID 1709094.
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- Quelle FW, Thierfelder W, Witthuhn BA, et al. (1995). "Phosphorylation and activation of the DNA binding activity of purified Stat1 by the Janus protein-tyrosine kinases and the epidermal growth factor receptor". J. Biol. Chem. 270 (35): 20775–80. doi:10.1074/jbc.270.35.20775. PMID 7657660.
- Ron D, Reich R, Chedid M, et al. (1993). "Fibroblast growth factor receptor 4 is a high affinity receptor for both acidic and basic fibroblast growth factor but not for keratinocyte growth factor". J. Biol. Chem. 268 (8): 5388–94. doi:10.1016/S0021-9258(18)53334-2. PMID 7680645.
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- Reich-Slotky R, Shaoul E, Berman B, et al. (1996). "Chimeric molecules between keratinocyte growth factor and basic fibroblast growth factor define domains that confer receptor binding specificities". J. Biol. Chem. 270 (50): 29813–8. doi:10.1074/jbc.270.50.29813. PMID 8530375.
- Vainikka S, Joukov V, Klint P, Alitalo K (1996). "Association of a 85-kDa serine kinase with activated fibroblast growth factor receptor-4". J. Biol. Chem. 271 (3): 1270–3. doi:10.1074/jbc.271.3.1270. PMID 8576110.
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Vanjski linkovi
uredi- FGFR4 protein, human na US National Library of Medicine Medical Subject Headings (MeSH)
Ovaj članak uključuje tekst iz Nacionalne medicinske biblioteke Sjedinjenih Država, koji je u javnom vlasništvu.