Sirpa Gene Summary [Mouse]

Enables protein phosphatase binding activity; protein phosphatase inhibitor activity; and protein phosphorylated amino acid binding activity. Involved in several processes, including negative regulation of cytokine production; negative regulation of nitric oxide biosynthetic process; and negative regulation of signal transduction. Acts upstream of or within several processes, including hematopoietic progenitor cell differentiation; phagocytosis; and positive regulation of phagocytosis. Located in plasma membrane. Is expressed in several structures, including adrenal gland; cartilage; central nervous system; genitourinary system; and retina. Orthologous to human SIRPA (signal regulatory protein alpha). [provided by Alliance of Genome Resources, Jul 2025]

Details

Type
Processed Transcript
Official Symbol
Sirpa
Official Name
signal-regulatory protein alpha [Source:MGI Symbol;Acc:MGI:108563]
Ensembl ID
ENSMUSG00000037902
Bio databases IDs NCBI: 19261 Ensembl: ENSMUSG00000037902
Aliases signal-regulatory protein alpha
Synonyms BIT, CD172A, Idd13.2, MFR, MYD-1, P84, PTP non-receptor type substrate 1, PTPNS1, P tyros subs 1, SHP-1, SHPS-1, signal-regulatory protein alpha, signal-regulatory protein α, SIRP, Sirp1 Alpha, Sirp1 α, SIRPA isoform 2, SIRPALPHA, SIRPα, Sirp-α-1
Species
Mouse, Mus musculus
OrthologiesHumanRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in mouse Sirpa often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • GTPase regulator
  • protein-tyrosine-phoshatase
  • cell adhesion molecule binding
  • Ig-like V domain
  • phosphoprotein amino acid binding
  • immunoglobin constant region like domain
  • N-linked glycosylation site
  • cytoplasmic domain
  • immunoreceptor tyrosine-based inhibition motif
  • Immunoglobulin like
  • phosphatase
  • intracellular domain
  • immunoglobulin-like protein domain
  • Immunoglobulin V-set domain
  • transmembrane receptor
  • extracellular domain
  • Immunoglobulin C1-set domain
  • protein kinase binding
  • Immunoglobulin V-Type
  • immunoglobulin domain
  • protein phosphatase binding
  • Immunoglobulin I-set domain
  • antigen binding
  • immunoglobulin variable region-like domain
  • protein binding
  • phosphotyrosine binding domain
  • protein phosphatase inhibitor activity
  • transmembrane domain
  • cytosolic tail domain

Pathways

Biological processes and signaling networks where the Sirpa gene in mouse plays a role, providing insight into its function and relevance in health or disease.

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • experimental autoimmune encephalomyelitis
  • hepatomegaly
  • splenomegaly
  • Alzheimer disease
  • non-insulin-dependent diabetes mellitus
  • neoplastic cell transformation
  • cognitive impairment
  • cardiac hypertrophy
  • pancytopenia
  • hemophagocytosis
regulated by
regulates
role in cell
  • expression in
  • apoptosis
  • phosphorylation in
  • growth
  • activation in
  • survival
  • tyrosine phosphorylation in
  • proliferation
  • binding in
  • cell death

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Plasma Membrane
  • plasma membrane fraction
  • soluble fraction
  • membrane fraction
  • Cytoplasm
  • cell surface
  • cell periphery
  • cellular membrane
  • secretory granule membrane
  • tertiary granule membrane
  • membrane rafts
  • perikaryon

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the mouse Sirpa gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • negative regulation of cytokine production involved in inflammatory response
  • cell adhesion
  • regulation of nitric oxide biosynthetic process
  • regulation of interferon-gamma production
  • positive regulation of T cell activation
  • negative regulation of chemokine (C-C motif) ligand 5 production
  • cellular response to hydrogen peroxide
  • cell migration
  • negative regulation of tumor necrosis factor production
  • negative regulation of interferon-beta production
  • monocyte extravasation
  • negative regulation of inflammatory response
  • regulation of tumor necrosis factor production
  • negative regulation of JNK cascade
  • negative regulation of nitric oxide biosynthetic process
  • negative regulation of interleukin-6 production
  • cellular response to lipopolysaccharide
  • negative regulation of macrophage inflammatory protein 1 alpha production
  • negative regulation of ERK1 and ERK2 cascade
  • negative regulation of protein phosphorylation
  • cellular response to interleukin-1
  • regulation of gene expression
  • regulation of interleukin-6 production
  • regulation of interleukin-1 beta production
  • heterotypic cell-cell adhesion
  • cellular response to interferon-gamma
  • positive regulation of phagocytosis
  • cellular response to interleukin-12
  • negative regulation of phagocytosis

Cellular Component

Where in the cell the gene product is active
  • extracellular vesicular exosome
  • membrane
  • plasma membrane
  • tertiary granule membrane
  • cell surface

Molecular Function

What the gene product does at the molecular level
  • protein phosphatase binding
  • GTPase regulator activity
  • protein binding involved in heterotypic cell-cell adhesion
  • SH3 domain binding

Gene-Specific Assays for Results You Can Trust

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