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SN_MOUSE
ID   SN_MOUSE                Reviewed;        1695 AA.
AC   Q62230; D3YVZ3; D3YVZ4; O55216; Q62228; Q62229;
DT   30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT   21-SEP-2011, sequence version 2.
DT   03-AUG-2022, entry version 179.
DE   RecName: Full=Sialoadhesin;
DE   AltName: Full=Sheep erythrocyte receptor;
DE            Short=SER;
DE   AltName: Full=Sialic acid-binding Ig-like lectin 1;
DE            Short=Siglec-1;
DE   AltName: CD_antigen=CD169;
DE   Flags: Precursor;
GN   Name=Siglec1; Synonyms=Sa, Sn;
OS   Mus musculus (Mouse).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae;
OC   Murinae; Mus; Mus.
OX   NCBI_TaxID=10090;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1; 2 AND 3), AND PARTIAL PROTEIN
RP   SEQUENCE.
RC   STRAIN=C57BL/6J; TISSUE=Macrophage;
RX   PubMed=7925291; DOI=10.1002/j.1460-2075.1994.tb06771.x;
RA   Crocker P.R., Mucklow S., Boukson V., McWilliam A., Willis A.C., Gordon S.,
RA   Milon G., Kelm S., Bradfield P.;
RT   "Sialoadhesin, a macrophage sialic acid binding receptor for haemopoietic
RT   cells with 17 immunoglobulin-like domains.";
RL   EMBO J. 13:4490-4503(1994).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=9383289; DOI=10.1007/s003359900615;
RA   Mucklow S., Gordon S., Crocker P.R.;
RT   "Characterization of the mouse sialoadhesin gene, Sn.";
RL   Mamm. Genome 8:934-937(1997).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=C57BL/6J;
RX   PubMed=19468303; DOI=10.1371/journal.pbio.1000112;
RA   Church D.M., Goodstadt L., Hillier L.W., Zody M.C., Goldstein S., She X.,
RA   Bult C.J., Agarwala R., Cherry J.L., DiCuccio M., Hlavina W., Kapustin Y.,
RA   Meric P., Maglott D., Birtle Z., Marques A.C., Graves T., Zhou S.,
RA   Teague B., Potamousis K., Churas C., Place M., Herschleb J., Runnheim R.,
RA   Forrest D., Amos-Landgraf J., Schwartz D.C., Cheng Z., Lindblad-Toh K.,
RA   Eichler E.E., Ponting C.P.;
RT   "Lineage-specific biology revealed by a finished genome assembly of the
RT   mouse.";
RL   PLoS Biol. 7:E1000112-E1000112(2009).
RN   [4]
RP   CHARACTERIZATION.
RC   STRAIN=C57BL/6J; TISSUE=Spleen;
RX   PubMed=2050106; DOI=10.1002/j.1460-2075.1991.tb07689.x;
RA   Crocker P.R.;
RT   "Purification and properties of sialoadhesin, a sialic acid-binding
RT   receptor of murine tissue macrophages.";
RL   EMBO J. 10:1661-1669(1991).
RN   [5]
RP   SIALIC ACID-BINDING.
RX   PubMed=7533044; DOI=10.1016/s0960-9822(00)00220-7;
RA   Kelm S., Pelz A., Schauer R., Filbin M.T., Tang S., de Bellard M.E.,
RA   Schnaar R.L., Mahoney J.A., Hartnell A., Bradfield P., Crocker P.R.;
RT   "Sialoadhesin, myelin-associated glycoprotein and CD22 define a new family
RT   of sialic acid-dependent adhesion molecules of the immunoglobulin
RT   superfamily.";
RL   Curr. Biol. 4:965-972(1994).
RN   [6]
RP   INTERACTION WITH SPN.
RX   PubMed=11238599; DOI=10.4049/jimmunol.166.6.3637;
RA   van den Berg T.K., Nath D., Ziltener H.J., Vestweber D., Fukuda M.,
RA   van Die I., Crocker P.R.;
RT   "CD43 functions as a T cell counterreceptor for the macrophage adhesion
RT   receptor sialoadhesin (Siglec-1).";
RL   J. Immunol. 166:3637-3640(2001).
RN   [7]
RP   FUNCTION, INTERACTION WITH CLEC10A, AND TISSUE SPECIFICITY.
RX   PubMed=15364954; DOI=10.1074/jbc.m409300200;
RA   Kumamoto Y., Higashi N., Denda-Nagai K., Tsuiji M., Sato K., Crocker P.R.,
RA   Irimura T.;
RT   "Identification of sialoadhesin as a dominant lymph node counter-receptor
RT   for mouse macrophage galactose-type C-type lectin 1.";
RL   J. Biol. Chem. 279:49274-49280(2004).
RN   [8]
RP   IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RC   TISSUE=Brown adipose tissue, Heart, Liver, Pancreas, and Spleen;
RX   PubMed=21183079; DOI=10.1016/j.cell.2010.12.001;
RA   Huttlin E.L., Jedrychowski M.P., Elias J.E., Goswami T., Rad R.,
RA   Beausoleil S.A., Villen J., Haas W., Sowa M.E., Gygi S.P.;
RT   "A tissue-specific atlas of mouse protein phosphorylation and expression.";
RL   Cell 143:1174-1189(2010).
RN   [9]
RP   X-RAY CRYSTALLOGRAPHY (1.85 ANGSTROMS) OF 20-138 IN COMPLEX WITH
RP   3'SIALYLLACTOSE, AND DISULFIDE BOND.
RX   PubMed=9660955; DOI=10.1016/s1097-2765(00)80071-4;
RA   May A.P., Robinson R.C., Vinson M., Crocker P.R., Jones E.Y.;
RT   "Crystal structure of the N-terminal domain of sialoadhesin in complex with
RT   3' sialyllactose at 1.85 A resolution.";
RL   Mol. Cell 1:719-728(1998).
RN   [10]
RP   STRUCTURE BY NMR OF 20-138, AND MUTAGENESIS OF TRP-21 AND ARG-116.
RX   PubMed=10393093; DOI=10.1042/bj3410355;
RA   Crocker P.R., Vinson M., Kelm S., Drickamer K.;
RT   "Molecular analysis of sialoside binding to sialoadhesin by NMR and site-
RT   directed mutagenesis.";
RL   Biochem. J. 341:355-361(1999).
RN   [11]
RP   X-RAY CRYSTALLOGRAPHY (2.1 ANGSTROMS) OF 20-138 IN COMPLEX WITH SIALIC
RP   ACID-BASED INHIBITORS, AND DISULFIDE BOND.
RX   PubMed=12737821; DOI=10.1016/s0969-2126(03)00073-x;
RA   Zaccai N.R., Maenaka K., Maenaka T., Crocker P.R., Brossmer R., Kelm S.,
RA   Jones E.Y.;
RT   "Structure-guided design of sialic acid-based Siglec inhibitors and
RT   crystallographic analysis in complex with sialoadhesin.";
RL   Structure 11:557-567(2003).
RN   [12]
RP   X-RAY CRYSTALLOGRAPHY (2.4 ANGSTROMS) OF 20-137 IN COMPLEX WITH SIALIC
RP   ACID-CONTAINING PEPTIDE, AND DISULFIDE BOND.
RX   PubMed=15488769; DOI=10.1016/j.bbapap.2004.08.015;
RA   Bukrinsky J.T., St Hilaire P.M., Meldal M., Crocker P.R., Henriksen A.;
RT   "Complex of sialoadhesin with a glycopeptide ligand.";
RL   Biochim. Biophys. Acta 1702:173-179(2004).
CC   -!- FUNCTION: Acts as an endocytic receptor mediating clathrin dependent
CC       endocytosis. Macrophage-restricted adhesion molecule that mediates
CC       sialic-acid dependent binding to lymphocytes, including granulocytes,
CC       monocytes, natural killer cells, B-cells and CD8 T-cells (By
CC       similarity). Preferentially binds to alpha-2,3-linked sialic acid.
CC       Binds to SPN/CD43 on T-cells. May play a role in hematopoiesis. May act
CC       as a counter-receptor for CLEC10A in lymph node. {ECO:0000250,
CC       ECO:0000269|PubMed:15364954}.
CC   -!- SUBUNIT: Interacts with CLEC10A. {ECO:0000269|PubMed:11238599,
CC       ECO:0000269|PubMed:12737821, ECO:0000269|PubMed:15364954,
CC       ECO:0000269|PubMed:15488769, ECO:0000269|PubMed:9660955}.
CC   -!- SUBCELLULAR LOCATION: [Isoform 1]: Cell membrane; Single-pass type I
CC       membrane protein.
CC   -!- SUBCELLULAR LOCATION: [Isoform 2]: Secreted.
CC   -!- SUBCELLULAR LOCATION: [Isoform 3]: Secreted.
CC   -!- ALTERNATIVE PRODUCTS:
CC       Event=Alternative splicing; Named isoforms=3;
CC       Name=1;
CC         IsoId=Q62230-1; Sequence=Displayed;
CC       Name=2;
CC         IsoId=Q62230-2; Sequence=VSP_002573, VSP_002574;
CC       Name=3;
CC         IsoId=Q62230-3; Sequence=VSP_002575, VSP_002576;
CC   -!- TISSUE SPECIFICITY: Detected in lymph node in the subcapsular sinus,
CC       interfollicular regions, and T and B-cell boundary (at protein level).
CC       Expressed by macrophages in various tissues. Highest expression in
CC       spleen and lymph node with lower amounts in lung, liver, bone marrow,
CC       heart and skin. No expression in thymus, kidney, brain or small
CC       intestine. {ECO:0000269|PubMed:15364954}.
CC   -!- SIMILARITY: Belongs to the immunoglobulin superfamily. SIGLEC (sialic
CC       acid binding Ig-like lectin) family. {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=CAA85268.1; Type=Frameshift; Evidence={ECO:0000305};
CC       Sequence=CAA85290.1; Type=Frameshift; Evidence={ECO:0000305};
CC   -!- WEB RESOURCE: Name=Functional Glycomics Gateway - Glycan Binding;
CC       Note=Siglec-1;
CC       URL="http://www.functionalglycomics.org/glycomics/GBPServlet?&operationType=view&cbpId=cbp_mou_Itlect_193";
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DR   EMBL; Z36293; CAA85290.1; ALT_FRAME; mRNA.
DR   EMBL; Z36233; CAA85268.1; ALT_FRAME; mRNA.
DR   EMBL; Z36234; CAA85269.1; -; mRNA.
DR   EMBL; U92842; AAB95641.1; -; Genomic_DNA.
DR   EMBL; U92833; AAB95641.1; JOINED; Genomic_DNA.
DR   EMBL; U92834; AAB95641.1; JOINED; Genomic_DNA.
DR   EMBL; U92836; AAB95641.1; JOINED; Genomic_DNA.
DR   EMBL; U92837; AAB95641.1; JOINED; Genomic_DNA.
DR   EMBL; U92838; AAB95641.1; JOINED; Genomic_DNA.
DR   EMBL; U92839; AAB95641.1; JOINED; Genomic_DNA.
DR   EMBL; U92840; AAB95641.1; JOINED; Genomic_DNA.
DR   EMBL; U92841; AAB95641.1; JOINED; Genomic_DNA.
DR   EMBL; AL831736; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   EMBL; AL833771; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   PIR; S50065; S50065.
DR   RefSeq; NP_035556.3; NM_011426.3.
DR   PDB; 1OD7; X-ray; 3.00 A; A=20-138.
DR   PDB; 1OD9; X-ray; 2.10 A; A=20-138.
DR   PDB; 1ODA; X-ray; 3.31 A; A=20-138.
DR   PDB; 1QFO; X-ray; 1.85 A; A/B/C=20-138.
DR   PDB; 1QFP; X-ray; 2.80 A; A=20-138.
DR   PDB; 1URL; X-ray; 2.40 A; A=20-137.
DR   PDB; 2BVE; X-ray; 2.20 A; A/B=20-138.
DR   PDBsum; 1OD7; -.
DR   PDBsum; 1OD9; -.
DR   PDBsum; 1ODA; -.
DR   PDBsum; 1QFO; -.
DR   PDBsum; 1QFP; -.
DR   PDBsum; 1URL; -.
DR   PDBsum; 2BVE; -.
DR   AlphaFoldDB; Q62230; -.
DR   SMR; Q62230; -.
DR   BioGRID; 203360; 2.
DR   IntAct; Q62230; 2.
DR   STRING; 10090.ENSMUSP00000028794; -.
DR   UniLectin; Q62230; -.
DR   GlyGen; Q62230; 15 sites.
DR   iPTMnet; Q62230; -.
DR   PhosphoSitePlus; Q62230; -.
DR   MaxQB; Q62230; -.
DR   PaxDb; Q62230; -.
DR   PRIDE; Q62230; -.
DR   ProteomicsDB; 261097; -. [Q62230-1]
DR   ProteomicsDB; 261098; -. [Q62230-2]
DR   ProteomicsDB; 261099; -. [Q62230-3]
DR   DNASU; 20612; -.
DR   GeneID; 20612; -.
DR   KEGG; mmu:20612; -.
DR   UCSC; uc008mkp.1; mouse. [Q62230-3]
DR   UCSC; uc008mkq.1; mouse. [Q62230-2]
DR   CTD; 6614; -.
DR   MGI; MGI:99668; Siglec1.
DR   eggNOG; KOG4475; Eukaryota.
DR   InParanoid; Q62230; -.
DR   OrthoDB; 54136at2759; -.
DR   Reactome; R-MMU-198933; Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell.
DR   BioGRID-ORCS; 20612; 2 hits in 72 CRISPR screens.
DR   EvolutionaryTrace; Q62230; -.
DR   PRO; PR:Q62230; -.
DR   Proteomes; UP000000589; Unplaced.
DR   RNAct; Q62230; protein.
DR   GO; GO:0005769; C:early endosome; IBA:GO_Central.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005770; C:late endosome; IBA:GO_Central.
DR   GO; GO:0005886; C:plasma membrane; IBA:GO_Central.
DR   GO; GO:0030246; F:carbohydrate binding; IEA:UniProtKB-KW.
DR   GO; GO:0046790; F:virion binding; IBA:GO_Central.
DR   GO; GO:0007155; P:cell adhesion; IEA:UniProtKB-KW.
DR   GO; GO:0075512; P:clathrin-dependent endocytosis of virus by host cell; IBA:GO_Central.
DR   GO; GO:2001238; P:positive regulation of extrinsic apoptotic signaling pathway; IMP:MGI.
DR   GO; GO:0070234; P:positive regulation of T cell apoptotic process; IMP:MGI.
DR   Gene3D; 2.60.40.10; -; 17.
DR   InterPro; IPR013162; CD80_C2-set.
DR   InterPro; IPR007110; Ig-like_dom.
DR   InterPro; IPR036179; Ig-like_dom_sf.
DR   InterPro; IPR013783; Ig-like_fold.
DR   InterPro; IPR013098; Ig_I-set.
DR   InterPro; IPR003599; Ig_sub.
DR   InterPro; IPR003598; Ig_sub2.
DR   InterPro; IPR013106; Ig_V-set.
DR   InterPro; IPR013151; Immunoglobulin.
DR   Pfam; PF08205; C2-set_2; 1.
DR   Pfam; PF07679; I-set; 3.
DR   Pfam; PF00047; ig; 1.
DR   Pfam; PF13895; Ig_2; 6.
DR   Pfam; PF07686; V-set; 1.
DR   SMART; SM00409; IG; 16.
DR   SMART; SM00408; IGc2; 15.
DR   SUPFAM; SSF48726; SSF48726; 12.
DR   PROSITE; PS50835; IG_LIKE; 14.
PE   1: Evidence at protein level;
KW   3D-structure; Alternative splicing; Cell adhesion; Cell membrane;
KW   Direct protein sequencing; Disulfide bond; Endocytosis; Glycoprotein;
KW   Immunoglobulin domain; Lectin; Membrane; Reference proteome; Repeat;
KW   Secreted; Signal; Transmembrane; Transmembrane helix.
FT   SIGNAL          1..19
FT   CHAIN           20..1695
FT                   /note="Sialoadhesin"
FT                   /id="PRO_0000014969"
FT   TOPO_DOM        20..1639
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        1640..1660
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        1661..1695
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   DOMAIN          20..136
FT                   /note="Ig-like V-type"
FT   DOMAIN          153..235
FT                   /note="Ig-like C2-type 1"
FT   DOMAIN          239..321
FT                   /note="Ig-like C2-type 2"
FT   DOMAIN          326..406
FT                   /note="Ig-like C2-type 3"
FT   DOMAIN          416..508
FT                   /note="Ig-like C2-type 4"
FT   DOMAIN          509..594
FT                   /note="Ig-like C2-type 5"
FT   DOMAIN          602..701
FT                   /note="Ig-like C2-type 6"
FT   DOMAIN          704..781
FT                   /note="Ig-like C2-type 7"
FT   DOMAIN          795..890
FT                   /note="Ig-like C2-type 8"
FT   DOMAIN          894..973
FT                   /note="Ig-like C2-type 9"
FT   DOMAIN          980..1079
FT                   /note="Ig-like C2-type 10"
FT   DOMAIN          1081..1161
FT                   /note="Ig-like C2-type 11"
FT   DOMAIN          1172..1264
FT                   /note="Ig-like C2-type 12"
FT   DOMAIN          1245..1337
FT                   /note="Ig-like C2-type 13"
FT   DOMAIN          1342..1439
FT                   /note="Ig-like C2-type 14"
FT   DOMAIN          1442..1520
FT                   /note="Ig-like C2-type 15"
FT   DOMAIN          1534..1627
FT                   /note="Ig-like C2-type 16"
FT   MOTIF           827..829
FT                   /note="Cell attachment site"
FT                   /evidence="ECO:0000255"
FT   BINDING         63
FT                   /ligand="N-acetylneuraminate"
FT                   /ligand_id="ChEBI:CHEBI:35418"
FT                   /evidence="ECO:0000305|PubMed:9660955"
FT   BINDING         116
FT                   /ligand="N-acetylneuraminate"
FT                   /ligand_id="ChEBI:CHEBI:35418"
FT                   /evidence="ECO:0000305|PubMed:10393093,
FT                   ECO:0000305|PubMed:12737821, ECO:0000305|PubMed:15488769,
FT                   ECO:0000305|PubMed:9660955"
FT   BINDING         122..126
FT                   /ligand="N-acetylneuraminate"
FT                   /ligand_id="ChEBI:CHEBI:35418"
FT   CARBOHYD        159
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        266
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        299
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        340
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        500
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        583
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        693
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        722
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        737
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        882
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        1090
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        1100
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        1247
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        1460
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        1474
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   DISULFID        36..166
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   DISULFID        41..98
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114,
FT                   ECO:0000269|PubMed:15488769"
FT   DISULFID        160..218
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   DISULFID        263..306
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   DISULFID        347..391
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   DISULFID        434..492
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   DISULFID        532..576
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   DISULFID        625..685
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   DISULFID        725..770
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   DISULFID        813..872
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   DISULFID        912..956
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   DISULFID        1001..1063
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   DISULFID        1103..1145
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   DISULFID        1189..1237
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   DISULFID        1277..1320
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   DISULFID        1363..1422
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   DISULFID        1463..1509
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   DISULFID        1552..1611
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   VAR_SEQ         326..340
FT                   /note="MAEVKMNPAGPVLEN -> SESWMRLRGPVSGKH (in isoform 2)"
FT                   /evidence="ECO:0000303|PubMed:7925291"
FT                   /id="VSP_002573"
FT   VAR_SEQ         341..1695
FT                   /note="Missing (in isoform 2)"
FT                   /evidence="ECO:0000303|PubMed:7925291"
FT                   /id="VSP_002574"
FT   VAR_SEQ         1529..1599
FT                   /note="YPPKTPTLIVFVEPQGGHQGILDCRVDSEPLAILTLHRGSQLVASNQLHDAP
FT                   TKPHIRVTAPPNALRVDIE -> CEYEPISALCLSLHLTGPYQAFSSAQSKGFIGKGLR
FT                   TLASSLAGCMWFVSMLGYPALKWRILLPFWDEYRR (in isoform 3)"
FT                   /evidence="ECO:0000303|PubMed:7925291"
FT                   /id="VSP_002575"
FT   VAR_SEQ         1600..1695
FT                   /note="Missing (in isoform 3)"
FT                   /evidence="ECO:0000303|PubMed:7925291"
FT                   /id="VSP_002576"
FT   MUTAGEN         21
FT                   /note="W->Q: Loss of sialic acid binding."
FT                   /evidence="ECO:0000269|PubMed:10393093"
FT   MUTAGEN         116
FT                   /note="R->A: Loss of sialic acid binding."
FT                   /evidence="ECO:0000269|PubMed:10393093"
FT   MUTAGEN         116
FT                   /note="R->L: 10-fold loss in affinity to sialic acid."
FT                   /evidence="ECO:0000269|PubMed:10393093"
FT   CONFLICT        159
FT                   /note="N -> F (in Ref. 2; AAB95641)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        197
FT                   /note="V -> S (in Ref. 1; CAA85268/CAA85290 and 2;
FT                   AAB95641)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        590
FT                   /note="P -> Q (in Ref. 1; AA sequence)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        727
FT                   /note="V -> G (in Ref. 1; CAA85268/CAA85290 and 2;
FT                   AAB95641)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        759..760
FT                   /note="PV -> LL (in Ref. 1; CAA85268/CAA85290 and 2;
FT                   AAB95641)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        1050..1052
FT                   /note="IHF -> FLV (in Ref. 1; AA sequence)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        1055..1056
FT                   /note="LE -> VQ (in Ref. 1; AA sequence)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        1062
FT                   /note="T -> Q (in Ref. 1; AA sequence)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        1066
FT                   /note="S -> Q (in Ref. 1; AA sequence)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        1426
FT                   /note="N -> H (in Ref. 1; CAA85268/CAA85290 and 2;
FT                   AAB95641)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        1453
FT                   /note="V -> W (in Ref. 1; CAA85268/CAA85290 and 2;
FT                   AAB95641)"
FT                   /evidence="ECO:0000305"
FT   STRAND          22..24
FT                   /evidence="ECO:0007829|PDB:1QFO"
FT   STRAND          27..32
FT                   /evidence="ECO:0007829|PDB:1QFO"
FT   STRAND          37..39
FT                   /evidence="ECO:0007829|PDB:1QFO"
FT   STRAND          42..44
FT                   /evidence="ECO:0007829|PDB:1QFO"
FT   STRAND          56..62
FT                   /evidence="ECO:0007829|PDB:1QFO"
FT   TURN            63..66
FT                   /evidence="ECO:0007829|PDB:1QFO"
FT   STRAND          68..74
FT                   /evidence="ECO:0007829|PDB:1QFO"
FT   HELIX           76..78
FT                   /evidence="ECO:0007829|PDB:1QFO"
FT   TURN            81..86
FT                   /evidence="ECO:0007829|PDB:1QFO"
FT   STRAND          87..89
FT                   /evidence="ECO:0007829|PDB:1QFO"
FT   HELIX           93..95
FT                   /evidence="ECO:0007829|PDB:1QFO"
FT   STRAND          100..102
FT                   /evidence="ECO:0007829|PDB:1QFO"
FT   HELIX           107..109
FT                   /evidence="ECO:0007829|PDB:1QFO"
FT   STRAND          111..118
FT                   /evidence="ECO:0007829|PDB:1QFO"
FT   STRAND          124..126
FT                   /evidence="ECO:0007829|PDB:1QFO"
FT   STRAND          131..136
FT                   /evidence="ECO:0007829|PDB:1QFO"
SQ   SEQUENCE   1695 AA;  182979 MW;  AF704F68C40E113A CRC64;
     MCVLFSLLLL ASVFSLGQTT WGVSSPKNVQ GLSGSCLLIP CIFSYPADVP VSNGITAIWY
     YDYSGKRQVV IHSGDPKLVD KRFRGRAELM GNMDHKVCNL LLKDLKPEDS GTYNFRFEIS
     DSNRWLDVKG TTVTVTTDPS PPTITIPEEL REGMERNFNC STPYLCLQEK QVSLQWRGQD
     PTHSVTSSFQ SLEPTGVYHQ TTLHMALSWQ DHGRTLLCQF SLGAHSSRKE VYLQVPHAPK
     GVEILLSSSG RNILPGDPVT LTCRVNSSYP AVSAVQWARD GVNLGVTGHV LRLFSAAWND
     SGAYTCQATN DMGSLVSSPL SLHVFMAEVK MNPAGPVLEN ETVTLLCSTP KEAPQELRYS
     WYKNHILLED AHASTLHLPA VTRADTGFYF CEVQNAQGSE RSSPLSVVVR YPPLTPDLTT
     FLETQAGLVG ILHCSVVSEP LATVVLSHGG LTLASNSGEN DFNPRFRISS APNSLRLEIR
     DLQPADSGEY TCLAVNSLGN STSSLDFYAN VARLLINPSA EVVEGQAVTL SCRSGLSPAP
     DTRFSWYLNG ALLLEGSSSS LLLPAASSTD AGSYYCRTQA GPNTSGPSLP TVLTVFYPPR
     KPTFTARLDL DTSGVGDGRR GILLCHVDSD PPAQLRLLHK GHVVATSLPS RCGSCSQRTK
     VSRTSNSLHV EIQKPVLEDE GVYLCEASNT LGNSSAAASF NAKATVLVIT PSNTLREGTE
     ANLTCNVNQE VAVSPANFSW FRNGVLWTQG SLETVRLQPV ARTDAAVYAC RLLTEDGAQL
     SAPVVLSVLY APDPPKLSAL LDVGQGHMAV FICTVDSYPL AHLSLFRGDH LLATNLEPQR
     PSHGRIQAKA TANSLQLEVR ELGLVDSGNY HCEATNILGS ANSSLFFQVR GAWVQVSPSP
     ELREGQAVVL SCQVPTGVSE GTSYSWYQDG RPLQESTSST LRIAAISLRQ AGAYHCQAQA
     PDTAIASLAA PVSLHVSYTP RHVTLSALLS TDPERLGHLV CSVQSDPPAQ LQLFHRNRLV
     ASTLQGADEL AGSNPRLHVT VLPNELRLQI HFPELEDDGT YTCEASNTLG QASAAADFDA
     QAVRVTVWPN ATVQEGQQVN LTCLVWSTHQ DSLSYTWYKG GQQLLGARSI TLPSVKVLDA
     TSYRCGVGLP GHAPHLSRPV TLDVLHAPRN LRLTYLLETQ GRQLALVLCT VDSRPPAQLT
     LSHGDQLVAS STEASVPNTL RLELQDPRPS NEGLYSCSAH SPLGKANTSL ELLLEGVRVK
     MNPSGSVPEG EPVTVTCEDP AALSSALYAW FHNGHWLQEG PASSLQFLVT TRAHAGAYFC
     QVHDTQGTRS SRPASLQILY APRDAVLSSF RDSRTRLMVV IQCTVDSEPP AEMVLSHNGK
     VLAASHERHS SASGIGHIQV ARNALRLQVQ DVTLGDGNTY VCTAQNTLGS ISTTQRLLTE
     TDIRVTAEPG LDVPEGTALN LSCLLPGGSG PTGNSSFTWF WNRHRLHSAP VPTLSFTPVV
     RAQAGLYHCR ADLPTGATTS APVMLRVLYP PKTPTLIVFV EPQGGHQGIL DCRVDSEPLA
     ILTLHRGSQL VASNQLHDAP TKPHIRVTAP PNALRVDIEE LGPSNQGEYV CTASNTLGSA
     SASAYFGTRA LHQLQLFQRL LWVLGFLAGF LCLLLGLVAY HTWRKKSSTK LNEDENSAEM
     ATKKNTIQEE VVAAL
 
 
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