SIGLEC1
entrez
6614
canonical
uniprot
Q9BZZ2
canonical
ensembl
ENSG00000088827
resolver
ensp
ENSP00000341141
resolver
ensp
ENSP00000516734
resolver
genesymbol
SIGLEC1
resolver
genesymbol_syn
SN
resolver
hgnc
HGNC:11127
resolver
uniprot
Q96DL4
resolver
uniprot
Q9GZS5
resolver
uniprot
Q9H1H6
resolver
uniprot
Q9H1H7
resolver
uniprot
Q9H7L7
resolver
uniprot_entry
SN_HUMAN
resolver
uniprot_sec
Q96DL4
resolver
uniprot_sec
Q9GZS5
resolver
uniprot_sec
Q9H1H6
resolver
uniprot_sec
Q9H1H7
resolver
uniprot_sec
Q9H7L7
resolver
amino_acid_sequence
MGFLPKLLLLASFFPAGQASWGVSSPQDVQGVKGSCLLIPCIFSFPADVEVPDGITAIWYYDYSGQRQVVSHSADPKLVEARFRGRTEFMGNPEHRVCNLLLKDLQPEDSGSYNFRFEISEVNRWSDVKGTLVTVTEEPRVPTIASPVELLEGTEVDFNCSTPYVCLQEQVRLQWQGQDPARSVTFNSQKFEPTGVGHLETLHMAMSWQDHGRILRCQLSVANHRAQSEIHLQVKYAPKGVKILLSPSGRNILPGELVTLTCQVNSSYPAVSSIKWLKDGVRLQTKTGVLHLPQAAWSDAGVYTCQAENGVGSLVSPPISLHIFMAEVQVSPAGPILENQTVTLVCNTPNEAPSDLRYSWYKNHVLLEDAHSHTLRLHLATRADTGFYFCEVQNVHGSERSGPVSVVVNHPPLTPVLTAFLETQAGLVGILHCSVVSEPLATLVLSHGGHILASTSGDSDHSPRFSGTSGPNSLRLEIRDLEETDSGEYKCSATNSLGNATSTLDFHANAARLLISPAAEVVEGQAVTLSCRSGLSPTPDARFSWYLNGALLHEGPGSSLLLPAASSTDAGSYHCRARDGHSASGPSSPAVLTVLYPPRQPTFTTRLDLDAAGAGAGRRGLLLCRVDSDPPARLQLLHKDRVVATSLPSGGGCSTCGGCSPRMKVTKAPNLLRVEIHNPLLEEEGLYLCEASNALGNASTSATFNGQATVLAIAPSHTLQEGTEANLTCNVSREAAGSPANFSWFRNGVLWAQGPLETVTLLPVARTDAALYACRILTEAGAQLSTPVLLSVLYPPDRPKLSALLDMGQGHMALFICTVDSRPLALLALFHGEHLLATSLGPQVPSHGRFQAKAEANSLKLEVRELGLGDSGSYRCEATNVLGSSNTSLFFQVRGAWVQVSPSPELQEGQAVVLSCQVHTGVPEGTSYRWYRDGQPLQESTSATLRFAAITLTQAGAYHCQAQAPGSATTSLAAPISLHVSYAPRHVTLTTLMDTGPGRLGLLLCRVDSDPPAQLRLLHGDRLVASTLQGVGGPEGSSPRLHVAVAPNTLRLEIHGAMLEDEGVYICEASNTLGQASASADFDAQAVNVQVWPGATVREGQLVNLTCLVWTTHPAQLTYTWYQDGQQRLDAHSIPLPNVTVRDATSYRCGVGPPGRAPRLSRPITLDVLYAPRNLRLTYLLESHGGQLALVLCTVDSRPPAQLALSHAGRLLASSTAASVPNTLRLELRGPQPRDEGFYSCSARSPLGQANTSLELRLEGVRVILAPEAAVPEGAPITVTCADPAAHAPTLYTWYHNGRWLQEGPAASLSFLVATRAHAGAYSCQAQDAQGTRSSRPAALQVLYAPQDAVLSSFRDSRARSMAVIQCTVDSEPPAELALSHDGKVLATSSGVHSLASGTGHVQVARNALRLQVQDVPAGDDTYVCTAQNLLGSISTIGRLQVEGARVVAEPGLDVPEGAALNLSCRLLGGPGPVGNSTFAWFWNDRRLHAEPVPTLAFTHVARAQAGMYHCLAELPTGAAASAPVMLRVLYPPKTPTMMVFVEPEGGLRGILDCRVDSEPLASLTLHLGSRLVASSQPQGAPAEPHIHVLASPNALRVDIEALRPSDQGEYICSASNVLGSASTSTYFGVRALHRLHQFQQLLWVLGLLVGLLLLLLGLGACYTWRRRRVCKQSMGENSVEMAFQKETTQLIDPDAATCETSTCAPPLG
uniprot
proteins
function
FUNCTION: Macrophage-restricted adhesion molecule that mediates sialic-acid dependent binding to lymphocytes, including granulocytes, monocytes, natural killer cells, B-cells and CD8 T-cells. Plays a crucial role in limiting bacterial dissemination by engaging sialylated bacteria to promote effective phagocytosis and antigen presentation for the adaptive immune response (PubMed:12940982, PubMed:33489013). Mediates the uptake of various enveloped viruses via sialic acid recognition and subsequently induces the formation of intracellular compartments filled with virions (VCCs) (PubMed:28129379). In turn, enhances macrophage-to-T-cell transmission of several viruses including HIV-1 or SARS-CoV-2 (PubMed:28129379, PubMed:34782760). Acts as an endocytic receptor mediating clathrin dependent endocytosis. Preferentially binds to alpha-2,3-linked sialic acid (PubMed:12940982). Binds to SPN/CD43 on T-cells (By similarity). May play a role in hemopoiesis. Plays a role in the inhibition of antiviral innate immune by promoting TBK1 degradation via TYROBP and TRIM27-mediated ubiquitination (PubMed:26358190). {ECO:0000250|UniProtKB:Q62230, ECO:0000269|PubMed:12940982, ECO:0000269|PubMed:26358190, ECO:0000269|PubMed:28129379, ECO:0000269|PubMed:33489013, ECO:0000269|PubMed:34782760}.; FUNCTION: (Microbial infection) Facilitates viral cytoplasmic entry into activated dendritic cells via recognition of sialylated gangliosides pesent on viral membrane. {ECO:0000269|PubMed:31160823}.
uniprot
proteins
mass_dalton
182624
uniprot
proteins
mutagenesis
MUTAGEN 116; /note="R->A: Complete loss of sialic acid recognition capacity."; /evidence="ECO:0000269|PubMed:34782760
uniprot
proteins
protein_family
Immunoglobulin superfamily
uniprot
proteins
protein_family
SIGLEC (sialic acid binding Ig-like lectin) family
uniprot
proteins
pubmed
11133773
uniprot
proteins
pubmed
11214971
uniprot
proteins
pubmed
11780052
uniprot
proteins
pubmed
12940982
uniprot
proteins
pubmed
14702039
uniprot
proteins
pubmed
26358190
uniprot
proteins
pubmed
28129379
uniprot
proteins
pubmed
31160823
uniprot
proteins
pubmed
33489013
uniprot
proteins
pubmed
34782760
uniprot
proteins
sequence_length
1709
uniprot
proteins
subcellular_location
SUBCELLULAR LOCATION: [Isoform 1]: Cell membrane {ECO:0000269|PubMed:28129379}; Single-pass type I membrane protein.; SUBCELLULAR LOCATION: [Isoform 2]: Secreted.
uniprot
proteins
transmembrane_region
TRANSMEM 1642..1662; /note="Helical"; /evidence="ECO:0000255
uniprot
proteins