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SIRPA
HPA
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  • SUMMARY

  • TISSUE

  • BRAIN

  • SINGLE CELL

  • SUBCELL

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  • BLOOD

  • CELL LINE

  • STRUCTURE

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  • SIRPA
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.

SIRPA
Synonyms BIT, CD172a, MFR, MYD-1, P84, PTPNS1, SHPS-1, SHPS1, SIRP, SIRP-ALPHA-1, SIRPalpha, SIRPalpha2
Gene descriptioni

Full gene name according to HGNC.

Signal regulatory protein alpha
Protein classi

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

Read more
CD markers
Plasma proteins
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 20
Cytoband p13
Chromosome location (bp) 1894167 - 1940592
Number of transcriptsi

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

4
Ensembl ENSG00000198053 (version 109)
Entrez gene 140885
HGNC HGNC:9662
UniProt P78324
GeneCards SIRPA
Antibodypedia SIRPA antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

Immunoglobulin-like cell surface receptor for CD47. Acts as docking protein and induces translocation of PTPN6, PTPN11 and other binding partners from the cytosol to the plasma membrane. Supports adhesion of cerebellar neurons, neurite outgrowth and glial cell attachment. May play a key role in intracellular signaling during synaptogenesis and in synaptic function (By similarity). Involved in the negative regulation of receptor tyrosine kinase-coupled cellular responses induced by cell adhesion, growth factors or insulin. Mediates negative regulation of phagocytosis, mast cell activation and dendritic cell activation. CD47 binding prevents maturation of immature dendritic cells and inhibits cytokine production by mature dendritic cells. Plays a role in antiviral immunity and limits new world arenavirus infection by decreasing virus internalization (By similarity). Receptor for THBS1 1. Interaction with THBS1 stimulates phosphorylation of SIRPA (By similarity). In response to THBS1, involved in ROS signaling in non-phagocytic cells, stimulating NADPH oxidase-derived ROS production 2.... show less
Gene summary (Entrez)i

Useful information about the gene from Entrez

The protein encoded by this gene is a member of the signal-regulatory-protein (SIRP) family, and also belongs to the immunoglobulin superfamily. SIRP family members are receptor-type transmembrane glycoproteins known to be involved in the negative regulation of receptor tyrosine kinase-coupled signaling processes. This protein can be phosphorylated by tyrosine kinases. The phospho-tyrosine residues of this PTP have been shown to recruit SH2 domain containing tyrosine phosphatases (PTP), and serve as substrates of PTPs. This protein was found to participate in signal transduction mediated by various growth factor receptors. CD47 has been demonstrated to be a ligand for this receptor protein. This gene and its product share very high similarity with several other members of the SIRP family. These related genes are located in close proximity to each other on chromosome 20p13. Multiple alternatively spliced transcript variants have been determined for this gene. [provided by RefSeq, Jul 2008]... 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)
SIRPA-201
ENSP00000348307
ENST00000356025
P78324
[Direct mapping] Tyrosine-protein phosphatase non-receptor type substrate 1
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
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   1TM proteins predicted by MDM
Plasma proteins
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:0001933 [negative regulation of protein phosphorylation]
GO:0005886 [plasma membrane]
GO:0007155 [cell adhesion]
GO:0009986 [cell surface]
GO:0010468 [regulation of gene expression]
GO:0016020 [membrane]
GO:0016477 [cell migration]
GO:0017124 [SH3 domain binding]
GO:0019903 [protein phosphatase binding]
GO:0030695 [GTPase regulator activity]
GO:0032649 [regulation of interferon-gamma production]
GO:0032651 [regulation of interleukin-1 beta production]
GO:0032675 [regulation of interleukin-6 production]
GO:0032680 [regulation of tumor necrosis factor production]
GO:0032688 [negative regulation of interferon-beta production]
GO:0032715 [negative regulation of interleukin-6 production]
GO:0032720 [negative regulation of tumor necrosis factor production]
GO:0034113 [heterotypic cell-cell adhesion]
GO:0035696 [monocyte extravasation]
GO:0045019 [negative regulation of nitric oxide biosynthetic process]
GO:0045428 [regulation of nitric oxide biosynthetic process]
GO:0046329 [negative regulation of JNK cascade]
GO:0050728 [negative regulation of inflammatory response]
GO:0050765 [negative regulation of phagocytosis]
GO:0050766 [positive regulation of phagocytosis]
GO:0050870 [positive regulation of T cell activation]
GO:0070062 [extracellular exosome]
GO:0070301 [cellular response to hydrogen peroxide]
GO:0070373 [negative regulation of ERK1 and ERK2 cascade]
GO:0070821 [tertiary granule membrane]
GO:0071222 [cellular response to lipopolysaccharide]
GO:0071346 [cellular response to interferon-gamma]
GO:0071347 [cellular response to interleukin-1]
GO:0071349 [cellular response to interleukin-12]
GO:0071641 [negative regulation of macrophage inflammatory protein 1 alpha production]
GO:0071650 [negative regulation of chemokine (C-C motif) ligand 5 production]
GO:0086080 [protein binding involved in heterotypic cell-cell adhesion]
GO:0098609 [cell-cell adhesion]
GO:0098632 [cell-cell adhesion mediator activity]
GO:0101003 [ficolin-1-rich granule membrane]
GO:1900016 [negative regulation of cytokine production involved in inflammatory response]
GO:1903720 [negative regulation of I-kappaB phosphorylation]
GO:1990405 [protein antigen binding]
GO:1990782 [protein tyrosine kinase binding]
Show all
504 aa
55 kDa
Yes 1
SIRPA-202
ENSP00000351621
ENST00000358771
P78324
[Direct mapping] Tyrosine-protein phosphatase non-receptor type substrate 1
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
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   1TM proteins predicted by MDM
Plasma proteins
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:0001933 [negative regulation of protein phosphorylation]
GO:0005886 [plasma membrane]
GO:0007155 [cell adhesion]
GO:0009986 [cell surface]
GO:0010468 [regulation of gene expression]
GO:0016020 [membrane]
GO:0016477 [cell migration]
GO:0017124 [SH3 domain binding]
GO:0019903 [protein phosphatase binding]
GO:0030695 [GTPase regulator activity]
GO:0032649 [regulation of interferon-gamma production]
GO:0032651 [regulation of interleukin-1 beta production]
GO:0032675 [regulation of interleukin-6 production]
GO:0032680 [regulation of tumor necrosis factor production]
GO:0032688 [negative regulation of interferon-beta production]
GO:0032715 [negative regulation of interleukin-6 production]
GO:0032720 [negative regulation of tumor necrosis factor production]
GO:0034113 [heterotypic cell-cell adhesion]
GO:0035696 [monocyte extravasation]
GO:0045019 [negative regulation of nitric oxide biosynthetic process]
GO:0045428 [regulation of nitric oxide biosynthetic process]
GO:0046329 [negative regulation of JNK cascade]
GO:0050728 [negative regulation of inflammatory response]
GO:0050765 [negative regulation of phagocytosis]
GO:0050766 [positive regulation of phagocytosis]
GO:0050870 [positive regulation of T cell activation]
GO:0070062 [extracellular exosome]
GO:0070301 [cellular response to hydrogen peroxide]
GO:0070373 [negative regulation of ERK1 and ERK2 cascade]
GO:0070821 [tertiary granule membrane]
GO:0071222 [cellular response to lipopolysaccharide]
GO:0071346 [cellular response to interferon-gamma]
GO:0071347 [cellular response to interleukin-1]
GO:0071349 [cellular response to interleukin-12]
GO:0071641 [negative regulation of macrophage inflammatory protein 1 alpha production]
GO:0071650 [negative regulation of chemokine (C-C motif) ligand 5 production]
GO:0086080 [protein binding involved in heterotypic cell-cell adhesion]
GO:0098609 [cell-cell adhesion]
GO:0098632 [cell-cell adhesion mediator activity]
GO:0101003 [ficolin-1-rich granule membrane]
GO:1900016 [negative regulation of cytokine production involved in inflammatory response]
GO:1903720 [negative regulation of I-kappaB phosphorylation]
GO:1990405 [protein antigen binding]
GO:1990782 [protein tyrosine kinase binding]
Show all
504 aa
55 kDa
Yes 1
SIRPA-203
ENSP00000382941
ENST00000400068
P78324
[Direct mapping] Tyrosine-protein phosphatase non-receptor type substrate 1
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
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   1TM proteins predicted by MDM
Plasma proteins
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:0001933 [negative regulation of protein phosphorylation]
GO:0005886 [plasma membrane]
GO:0007155 [cell adhesion]
GO:0009986 [cell surface]
GO:0010468 [regulation of gene expression]
GO:0016020 [membrane]
GO:0016477 [cell migration]
GO:0017124 [SH3 domain binding]
GO:0019903 [protein phosphatase binding]
GO:0030695 [GTPase regulator activity]
GO:0032649 [regulation of interferon-gamma production]
GO:0032651 [regulation of interleukin-1 beta production]
GO:0032675 [regulation of interleukin-6 production]
GO:0032680 [regulation of tumor necrosis factor production]
GO:0032688 [negative regulation of interferon-beta production]
GO:0032715 [negative regulation of interleukin-6 production]
GO:0032720 [negative regulation of tumor necrosis factor production]
GO:0034113 [heterotypic cell-cell adhesion]
GO:0035696 [monocyte extravasation]
GO:0045019 [negative regulation of nitric oxide biosynthetic process]
GO:0045428 [regulation of nitric oxide biosynthetic process]
GO:0046329 [negative regulation of JNK cascade]
GO:0050728 [negative regulation of inflammatory response]
GO:0050765 [negative regulation of phagocytosis]
GO:0050766 [positive regulation of phagocytosis]
GO:0050870 [positive regulation of T cell activation]
GO:0070062 [extracellular exosome]
GO:0070301 [cellular response to hydrogen peroxide]
GO:0070373 [negative regulation of ERK1 and ERK2 cascade]
GO:0070821 [tertiary granule membrane]
GO:0071222 [cellular response to lipopolysaccharide]
GO:0071346 [cellular response to interferon-gamma]
GO:0071347 [cellular response to interleukin-1]
GO:0071349 [cellular response to interleukin-12]
GO:0071641 [negative regulation of macrophage inflammatory protein 1 alpha production]
GO:0071650 [negative regulation of chemokine (C-C motif) ligand 5 production]
GO:0086080 [protein binding involved in heterotypic cell-cell adhesion]
GO:0098609 [cell-cell adhesion]
GO:0098632 [cell-cell adhesion mediator activity]
GO:0101003 [ficolin-1-rich granule membrane]
GO:1900016 [negative regulation of cytokine production involved in inflammatory response]
GO:1903720 [negative regulation of I-kappaB phosphorylation]
GO:1990405 [protein antigen binding]
GO:1990782 [protein tyrosine kinase binding]
Show all
504 aa
55 kDa
Yes 1
SIRPA-204
ENSP00000478763
ENST00000622179
P78324
[Direct mapping] Tyrosine-protein phosphatase non-receptor type substrate 1
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
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   1TM proteins predicted by MDM
Plasma proteins
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Ezkurdia et al 2014)
   deepTMHMM predicted membrane proteins
Show all
GO:0001933 [negative regulation of protein phosphorylation]
GO:0005886 [plasma membrane]
GO:0007155 [cell adhesion]
GO:0009986 [cell surface]
GO:0010468 [regulation of gene expression]
GO:0016020 [membrane]
GO:0016477 [cell migration]
GO:0017124 [SH3 domain binding]
GO:0019903 [protein phosphatase binding]
GO:0030695 [GTPase regulator activity]
GO:0032649 [regulation of interferon-gamma production]
GO:0032651 [regulation of interleukin-1 beta production]
GO:0032675 [regulation of interleukin-6 production]
GO:0032680 [regulation of tumor necrosis factor production]
GO:0032688 [negative regulation of interferon-beta production]
GO:0032715 [negative regulation of interleukin-6 production]
GO:0032720 [negative regulation of tumor necrosis factor production]
GO:0034113 [heterotypic cell-cell adhesion]
GO:0035696 [monocyte extravasation]
GO:0045019 [negative regulation of nitric oxide biosynthetic process]
GO:0045428 [regulation of nitric oxide biosynthetic process]
GO:0046329 [negative regulation of JNK cascade]
GO:0050728 [negative regulation of inflammatory response]
GO:0050765 [negative regulation of phagocytosis]
GO:0050766 [positive regulation of phagocytosis]
GO:0050870 [positive regulation of T cell activation]
GO:0070062 [extracellular exosome]
GO:0070301 [cellular response to hydrogen peroxide]
GO:0070373 [negative regulation of ERK1 and ERK2 cascade]
GO:0070821 [tertiary granule membrane]
GO:0071222 [cellular response to lipopolysaccharide]
GO:0071346 [cellular response to interferon-gamma]
GO:0071347 [cellular response to interleukin-1]
GO:0071349 [cellular response to interleukin-12]
GO:0071641 [negative regulation of macrophage inflammatory protein 1 alpha production]
GO:0071650 [negative regulation of chemokine (C-C motif) ligand 5 production]
GO:0086080 [protein binding involved in heterotypic cell-cell adhesion]
GO:0098609 [cell-cell adhesion]
GO:0098632 [cell-cell adhesion mediator activity]
GO:0101003 [ficolin-1-rich granule membrane]
GO:1900016 [negative regulation of cytokine production involved in inflammatory response]
GO:1903720 [negative regulation of I-kappaB phosphorylation]
GO:1990405 [protein antigen binding]
GO:1990782 [protein tyrosine kinase binding]
Show all
508 aa
55.4 kDa
Yes 1

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