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Overview

Uniprot IDP12314
Protein NameHigh affinity immunoglobulin gamma Fc receptor I
Gene NameFCGR1A
OrganismHomo sapiens

Kla Sites from experimental identification

Position Flanking peptide
336 LDSGHEKKVISSLQE

Function

High affinity receptor for the Fc region of immunoglobulins gamma. Functions in both innate and adaptive immune responses. Mediates IgG effector functions on monocytes triggering antibody-dependent cellular cytotoxicity (ADCC) of virus-infected cells

Protein Sequence

10 MWFLTTLLLW 20 VPVDGQVDTT 30 KAVITLQPPW 40 VSVFQEETVT 50 LHCEVLHLPG 60 SSSTQWFLNG 70 TATQTSTPSY 80 RITSASVNDS 90 GEYRCQRGLS 100 GRSDPIQLEI 110 HRGWLLLQVS 120 SRVFTEGEPL 130 ALRCHAWKDK 140 LVYNVLYYRN 150 GKAFKFFHWN 160 SNLTILKTNI 170 SHNGTYHCSG 180 MGKHRYTSAG 190 ISVTVKELFP 200 APVLNASVTS 210 PLLEGNLVTL 220 SCETKLLLQR 230 PGLQLYFSFY 240 MGSKTLRGRN 250 TSSEYQILTA 260 RREDSGLYWC 270 EAATEDGNVL 280 KRSPELELQV 290 LGLQLPTPVW 300 FHVLFYLAVG 310 IMFLVNTVLW 320 VTIRKELKRK 330 KKWDLEISLD 340 SGHEKKVISS 350 LQEDRHLEEE 360 LKCQEQKEEQ 370 LQEGVHRKEP QGAT

Gene Ontology

Classification GO ID Description
Biological Process GO:0006955 immune response
Cellular Component GO:0030669 clathrin-coated endocytic vesicle membrane
Cellular Component GO:0031901 early endosome membrane
Cellular Component GO:0009897 external side of plasma membrane
Cellular Component GO:0005886 plasma membrane
Molecular Function GO:0019771 high-affinity IgG receptor activity
Molecular Function GO:0019864 IgG binding
Molecular Function GO:0019770 IgG receptor activity
Biological Process GO:0001788 antibody-dependent cellular cytotoxicity
Biological Process GO:0007166 cell surface receptor signaling pathway
Biological Process GO:0038094 Fc-gamma receptor signaling pathway
Biological Process GO:0045087 innate immune response
Biological Process GO:0006911 phagocytosis, engulfment
Biological Process GO:0050766 positive regulation of phagocytosis
Biological Process GO:0032760 positive regulation of tumor necrosis factor production
Biological Process GO:0007165 signal transduction

Reference

[1] He J, Lai T, Zhou Z, Yang H, Lei Z et al.. Multiomics profiling reveals the involvement of protein lactylation in nonhomologous end joining pathway conferring radioresistance in lung adenocarcinoma cell.. Sci Rep 15(1):24651. 2025 Jul 9. PMID: 40634431.