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SPN
HPA
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  • SPN
PROTEIN SUMMARY GENE INFORMATION RNA DATA ANTIBODY DATA
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

SPN
Synonyms CD43, GPL115, LEU-22, LSN
Gene descriptioni

Full gene name according to HGNC.

Sialophorin
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

CD markers
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Membrane
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 16
Cytoband p11.2
Chromosome location (bp) 29662979 - 29670876
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

4
Ensembl ENSG00000197471 (version 109)
Entrez gene 6693
HGNC HGNC:11249
UniProt P16150 (UniProt - Evidence at protein level)
neXtProt NX_P16150
GeneCards SPN
Antibodypedia SPN antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

Predominant cell surface sialoprotein of leukocytes which regulates multiple T-cell functions, including T-cell activation, proliferation, differentiation, trafficking and migration. Positively regulates T-cell trafficking to lymph-nodes via its association with ERM proteins (EZR, RDX and MSN) (By similarity). Negatively regulates Th2 cell differentiation and predisposes the differentiation of T-cells towards a Th1 lineage commitment. Promotes the expression of IFN-gamma by T-cells during T-cell receptor (TCR) activation of naive cells and induces the expression of IFN-gamma by CD4(+) T-cells and to a lesser extent by CD8(+) T-cells 1. Plays a role in preparing T-cells for cytokine sensing and differentiation into effector cells by inducing the expression of cytokine receptors IFNGR and IL4R, promoting IFNGR and IL4R signaling and by mediating the clustering of IFNGR with TCR 2. Acts as a major E-selectin ligand responsible for Th17 cell rolling on activated vasculature and recruitment during inflammation. Mediates Th17 cells, but not Th1 cells, adhesion to E-selectin. Acts as a T-cell counter-receptor for SIGLEC1 (By similarity).... show less
Gene summary (Entrez)i

Useful information about the gene from Entrez

This gene encodes a highly sialylated glycoprotein that functions in antigen-specific activation of T cells, and is found on the surface of thymocytes, T lymphocytes, monocytes, granulocytes, and some B lymphocytes. It contains a mucin-like extracellular domain, a transmembrane region and a carboxy-terminal intracellular region. The extracellular domain has a high proportion of serine and threonine residues, allowing extensive O-glycosylation, and has one potential N-glycosylation site, while the carboxy-terminal region has potential phosphorylation sites that may mediate transduction of activation signals. Different glycoforms of this protein have been described. In stimulated immune cells, proteolytic cleavage of the extracellular domain occurs in some cell types, releasing a soluble extracellular fragment. Defects in expression of this gene are associated with Wiskott-Aldrich syndrome. [provided by RefSeq, Sep 2017]... show less
PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
SPN-201
ENSP00000353238
ENST00000360121
P16150
[Direct mapping] Leukosialin CD43 cytoplasmic tail
Show all
A0A024R629
[Target identity:100%; Query identity:100%] Sialophorin (GpL115, leukosialin, CD43), isoform CRA_a
Show all
CD markers
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   1TM proteins predicted by MDM
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Ezkurdia et al 2014)
   DeepTMHMM predicted membrane proteins
Show all
GO:0001931 [uropod]
GO:0002296 [T-helper 1 cell lineage commitment]
GO:0004888 [transmembrane signaling receptor activity]
GO:0005515 [protein binding]
GO:0005615 [extracellular space]
GO:0005634 [nucleus]
GO:0005886 [plasma membrane]
GO:0005902 [microvillus]
GO:0006935 [chemotaxis]
GO:0006955 [immune response]
GO:0006968 [cellular defense response]
GO:0007162 [negative regulation of cell adhesion]
GO:0007163 [establishment or maintenance of cell polarity]
GO:0007165 [signal transduction]
GO:0007166 [cell surface receptor signaling pathway]
GO:0009897 [external side of plasma membrane]
GO:0009986 [cell surface]
GO:0016020 [membrane]
GO:0016605 [PML body]
GO:0030544 [Hsp70 protein binding]
GO:0031072 [heat shock protein binding]
GO:0032609 [type II interferon production]
GO:0032760 [positive regulation of tumor necrosis factor production]
GO:0042130 [negative regulation of T cell proliferation]
GO:0042742 [defense response to bacterium]
GO:0042995 [cell projection]
GO:0050776 [regulation of immune response]
GO:0050863 [regulation of T cell activation]
GO:0050901 [leukocyte tethering or rolling]
GO:0070062 [extracellular exosome]
GO:2000404 [regulation of T cell migration]
GO:2000406 [positive regulation of T cell migration]
Show all
400 aa
40.3 kDa
Yes 1
SPN-202
ENSP00000378787
ENST00000395389
P16150
[Direct mapping] Leukosialin CD43 cytoplasmic tail
Show all
A0A024R629
[Target identity:100%; Query identity:100%] Sialophorin (GpL115, leukosialin, CD43), isoform CRA_a
Show all
CD markers
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   1TM proteins predicted by MDM
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
   DeepTMHMM predicted membrane proteins
Show all
GO:0001931 [uropod]
GO:0002296 [T-helper 1 cell lineage commitment]
GO:0004888 [transmembrane signaling receptor activity]
GO:0005515 [protein binding]
GO:0005615 [extracellular space]
GO:0005634 [nucleus]
GO:0005886 [plasma membrane]
GO:0005902 [microvillus]
GO:0006935 [chemotaxis]
GO:0006955 [immune response]
GO:0006968 [cellular defense response]
GO:0007162 [negative regulation of cell adhesion]
GO:0007163 [establishment or maintenance of cell polarity]
GO:0007165 [signal transduction]
GO:0007166 [cell surface receptor signaling pathway]
GO:0009897 [external side of plasma membrane]
GO:0009986 [cell surface]
GO:0016020 [membrane]
GO:0016605 [PML body]
GO:0030544 [Hsp70 protein binding]
GO:0031072 [heat shock protein binding]
GO:0032609 [type II interferon production]
GO:0032760 [positive regulation of tumor necrosis factor production]
GO:0042130 [negative regulation of T cell proliferation]
GO:0042742 [defense response to bacterium]
GO:0042995 [cell projection]
GO:0050776 [regulation of immune response]
GO:0050863 [regulation of T cell activation]
GO:0050901 [leukocyte tethering or rolling]
GO:0070062 [extracellular exosome]
GO:2000404 [regulation of T cell migration]
GO:2000406 [positive regulation of T cell migration]
Show all
400 aa
40.3 kDa
Yes 1
SPN-203
ENSP00000412907
ENST00000436527
C9JUK7
[Direct mapping] Leukosialin
Show all
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   1TM proteins predicted by MDM
Protein evidence (Ezkurdia et al 2014)
   DeepTMHMM predicted membrane proteins
Show all
GO:0004888 [transmembrane signaling receptor activity]
GO:0016020 [membrane]
GO:0032609 [type II interferon production]
GO:0050863 [regulation of T cell activation]
GO:2000404 [regulation of T cell migration]
Show all
355 aa
36 kDa
Yes 1
SPN-206
ENSP00000498852
ENST00000652691
P16150
[Direct mapping] Leukosialin CD43 cytoplasmic tail
Show all
A0A024R629
[Target identity:100%; Query identity:100%] Sialophorin (GpL115, leukosialin, CD43), isoform CRA_a
Show all
CD markers
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   1TM proteins predicted by MDM
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
   DeepTMHMM predicted membrane proteins
Show all
GO:0001931 [uropod]
GO:0002296 [T-helper 1 cell lineage commitment]
GO:0004888 [transmembrane signaling receptor activity]
GO:0005515 [protein binding]
GO:0005615 [extracellular space]
GO:0005634 [nucleus]
GO:0005886 [plasma membrane]
GO:0005902 [microvillus]
GO:0006935 [chemotaxis]
GO:0006955 [immune response]
GO:0006968 [cellular defense response]
GO:0007162 [negative regulation of cell adhesion]
GO:0007163 [establishment or maintenance of cell polarity]
GO:0007165 [signal transduction]
GO:0007166 [cell surface receptor signaling pathway]
GO:0009897 [external side of plasma membrane]
GO:0009986 [cell surface]
GO:0016020 [membrane]
GO:0016605 [PML body]
GO:0030544 [Hsp70 protein binding]
GO:0031072 [heat shock protein binding]
GO:0032609 [type II interferon production]
GO:0032760 [positive regulation of tumor necrosis factor production]
GO:0042130 [negative regulation of T cell proliferation]
GO:0042742 [defense response to bacterium]
GO:0042995 [cell projection]
GO:0050776 [regulation of immune response]
GO:0050863 [regulation of T cell activation]
GO:0050901 [leukocyte tethering or rolling]
GO:0070062 [extracellular exosome]
GO:2000404 [regulation of T cell migration]
GO:2000406 [positive regulation of T cell migration]
Show all
400 aa
40.3 kDa
Yes 1

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