Gene Information
Gene NameSIRPA
OrganismHomo sapiens (Human)
Gene Length504
Protein NamesTyrosine-protein phosphatase non-receptor type substrate 1 (SHP substrate 1) (SHPS-1) (Brain Ig-like molecule with tyrosine-based activation motifs) (Bit) (CD172 antigen-like family member A) (Inhibitory receptor SHPS-1) (Macrophage fusion receptor) (MyD-1 antigen) (Signal-regulatory protein alpha-1) (Sirp-alpha-1) (Signal-regulatory protein alpha-2) (Sirp-alpha-2) (Signal-regulatory protein alpha-3) (Sirp-alpha-3) (p84) (CD antigen CD172a)
Target Nameinhibitory receptor shps-1
Target TypeClinical trial target
Gene Age18 ( ENSG00000198053 )
Evolutionary StageEumetazoa
AlphaFoldDBP78324
Gene CardSIRPA
Uniprot IDP78324
PfamPF07654; PF07686
In ASDno
Allosteric Predictionno (-0.073279659)
Ortholog in AnimalsAlpaca_ SIRPA ( ortholog_one2one )
Mouse_ Sirpb1a ( ortholog_many2many )
Mouse_ Sirpb1b ( ortholog_many2many )
Mouse_ Sirpb1c ( ortholog_many2many )
Mouse_ Sirpa ( ortholog_many2many )
Mouse_ Gm5150 ( ortholog_many2many )
Mouse_ Gm9733 ( ortholog_many2many )
Rat_ Sirpd ( ortholog_many2many )
Rat_ Sirpb2 ( ortholog_many2many )
Rat_ Sirpa ( ortholog_many2many )
Rat_ AABR07006142.1 ( ortholog_many2many )
Rat_ AABR07008876.1 ( ortholog_many2many )
OhnologsNA
ParalogsSIRPB1, SIRPG, SIRPD, SIRPB2
TissueNA
Tissue SpecificityUbiquitous. Highly expressed in brain. Detected on myeloid cells, but not T-cells. Detected at lower levels in heart, placenta, lung, testis, ovary, colon, liver, small intestine, prostate, spleen, kidney, skeletal muscle and pancreas.
Pharmacological Animal Models0.000730(Chimpanzee);0.001000(Mouse);NULL(Rat);NULL(Rabbit)
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 2JJS  (X-ray  1.85A  2JJT  (X-ray  2.30A  2UV3  (X-ray  1.80A  2WNG  (X-ray  2.49A  4CMM  (X-ray  1.92A  6BIT  (X-ray  2.19A  6NMR  (X-ray  2.42A  6NMS  (X-ray  2.11A  6NMT  (X-ray  1.83A  6NMU  (X-ray  2.55A  6NMV  (X-ray  2.61A  7KPG  (X-ray  2.27A 
DBSNP rs1349896458  rs143735290  rs17855609  rs17855610  rs17855611  rs17855612  rs1371837011  rs1057114  rs1182420620  rs138283486  rs386811662  rs17855615  rs17855616  rs767136065  rs386811663  rs143385810  rs377448893  rs754806675  rs2422666  rs138876160  rs1200233096  rs778218860  rs1168490568  rs367629199 
Subcellular location [CC]Membrane;
Single-pass type I membrane protein.
Mouse PG classificationNA
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