MADD (gene)

MADD
Identifiers
AliasesMADD, DENN, IG20, RAB3GEP, MAP kinase activating death domain
External IDsOMIM: 603584; MGI: 2444672; HomoloGene: 14249; GeneCards: MADD; OMA:MADD - orthologs
Orthologs
SpeciesHumanMouse
Entrez

8567

228355

Ensembl

ENSG00000110514

ENSMUSG00000040687

UniProt

Q8WXG6

Q80U28

RefSeq (mRNA)
RefSeq (protein)

NP_001171190
NP_001171191
NP_663502

Location (UCSC)Chr 11: 47.27 – 47.33 MbChr 2: 91.14 – 91.18 Mb
PubMed search
Wikidata
View/Edit HumanView/Edit Mouse

MAP kinase-activating death domain protein is an enzyme that in humans is encoded by the MADD gene. MADD is one out of four of the splice variants of the human IG20 (insulinoma-glucagonoma clone 20) gene which is located on human chromosome 11.

Tumor necrosis factor alpha (TNF-alpha) is a signaling molecule that interacts with one of two receptors on cells targeted for apoptosis. The apoptotic signal is transduced inside these cells by cytoplasmic adaptor proteins. The protein encoded by this gene is a death domain-containing adaptor protein that interacts with the death domain of TNF-alpha receptor 1 to activate mitogen-activated protein kinase (MAPK) and propagate the apoptotic signal. It is membrane-bound and expressed at a higher level in neoplastic cells than in normal cells. Several transcript variants encoding different isoforms have been described for this gene. MADD is mostly expressed in the cell membrane with some cytoplasmic expression in human cells.