Gene Information
Gene NameIG20
OrganismHomo sapiens (Human)
Gene Length1647
Protein NamesMAP kinase-activating death domain protein (Differentially expressed in normal and neoplastic cells) (Insulinoma glucagonoma clone 20) (Rab3 GDP/GTP exchange factor) (RabGEF) (Rab3 GDP/GTP exchange protein) (Rab3GEP)
Target NameNA
Target TypeNA
Gene AgeNA
Evolutionary StageNA
AlphaFoldDBQ8WXG6
Gene CardMADD
Uniprot IDQ8WXG6
PfamPF02141; PF03456
In ASDno
Allosteric PredictionNA
Ortholog in AnimalsNA
OhnologsNA
ParalogsNA
TissueNA
Tissue SpecificityExpressed in testis, ovary, brain and heart (PubMed:8988362). Expressed in spleen, thymus, prostate, testis, ovary, small instestine and colon (PubMed:9115275). Expressed in liver (PubMed:9796103). {ECO:0000269|PubMed:8988362, ECO:0000269|PubMed:9115275, ECO:0000269|PubMed:9796103}.;
[Isoform 1]: Not detected in the brain, breast, kidney, lung, ovary, pancreas, testis, uterus, stomach and thyroid. {ECO:0000269|PubMed:14716293}.;
[Isoform 2]: Expressed in the brain, breast, kidney, lung, ovary, pancreas, testis, uterus, stomach and thyroid. {ECO:0000269|PubMed:14716293}.;
[Isoform 3]: Expressed in the brain, breast, kidney, lung, ovary, pancreas, testis, uterus, stomach and thyroid. {ECO:0000269|PubMed:14716293}.;
[Isoform 4]: Expressed in the brain, breast, kidney, lung, ovary, pancreas, testis, uterus, stomach and thyroid. {ECO:0000269|PubMed:14716293}.;
[Isoform 5]: Expressed in the brain, breast, kidney, lung, ovary, pancreas, testis, uterus, stomach and thyroid. {ECO:0000269|PubMed:14716293}.;
[Isoform 6]: Not detected in the brain, breast, kidney, lung, ovary, pancreas, testis, uterus, stomach and thyroid. {ECO:0000269|PubMed:14716293}.;
[Isoform 7]: Not detected in the brain, breast, kidney, lung, ovary, pancreas, testis, uterus, stomach and thyroid. {ECO:0000269|PubMed:14716293}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB NA 
DBSNP rs149316791  rs147179561  rs1591767154  rs370382902  rs147713337  rs17854007  rs1051006  rs3736101  rs17854008  rs17854009  rs34534575  rs971864929 
Subcellular location [CC]Cell membrane {ECO:0000269|PubMed:8988362}. Cytoplasm {ECO:0000269|PubMed:8988362}. Cell projection, axon {ECO:0000250|UniProtKB:Q80U28}.
Mouse PG classificationNA
click here to return to the previous page