Gene Information
Gene NameSSA1
OrganismHomo sapiens (Human)
Gene Length475
Protein NamesE3 ubiquitin-protein ligase TRIM21 (EC 2.3.2.27) (52 kDa Ro protein) (52 kDa ribonucleoprotein autoantigen Ro/SS-A) (RING finger protein 81) (RING-type E3 ubiquitin transferase TRIM21) (Ro(SS-A)) (Sjoegren syndrome type A antigen) (SS-A) (Tripartite motif-containing protein 21)
Target NameNA
Target TypeNA
Gene AgeNA
Evolutionary StageNA
AlphaFoldDBP19474
Gene CardTRIM21
Uniprot IDP19474
PfamPF13765; PF00622; PF00643; PF00097
In ASDno
Allosteric PredictionNA
Ortholog in AnimalsNA
OhnologsNA
ParalogsNA
TissueNA
Tissue SpecificityIsoform 1 and isoform 2 are expressed in fetal and adult heart and fetal lung.
Pharmacological Animal ModelsNULL(Chimpanzee);NULL(Mouse);0.001860(Rat);0.024(Rabbit)
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 2IWG  (X-ray  2.35A  5JPX  (NMR  5OLM  (X-ray  1.95A  6FGA  (X-ray  2.82A  6S53  (X-ray  2.80A  7BBD  (X-ray  2.20A 
DBSNP rs1042302  rs58403334  rs2975162  rs2554934 
Subcellular location [CC]Cytoplasm {ECO:0000269|PubMed:17156811, ECO:0000269|PubMed:26347139}. Cytoplasmic vesicle, autophagosome {ECO:0000269|PubMed:26347139}. Nucleus {ECO:0000269|PubMed:17156811}. Cytoplasm, P-body {ECO:0000269|PubMed:18361920}. Note=Enters the nucleus upon exposure to nitric oxide. Localizes to small dot- or rod-like structures in the cytoplasm, called processing bodies (P-bodies) that are located underneath the plasma membrane and also diffusely in the cytoplasm. They are located along the microtubules and are highly motile in cells. Colocalizes with DCP2 in P-bodies.
Mouse PG classificationNA
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