Summary for peptidase M12.219: ADAMDEC1 peptidase

Summary Gene structure Alignment Tree Sequences Sequence features Distribution Literature Human EST Mouse EST Substrates Inhibitors


MEROPS NameADAMDEC1 peptidase
Other namesdecysin
Name and HistoryADAMDEC1 is an unusual member of the ADAM subfamily because it lacks a disintegrin and an ADAM-CR domain, and the third zinc ligand is aspartic acid rather than histidine (within the motif HEXXHXXGXXD) (Bates et al., 2002).
Domain architecture
MEROPS Classification
Classification Clan MA >> Subclan MA(M) >> Family M12 >> Subfamily B >> M12.219
HolotypeADAMDEC1 peptidase (Mus musculus), Uniprot accession Q9R0X2 (peptidase unit: 213-411), MERNUM MER0011865
History Identifier created: MEROPS 3.1 (22 December 1998)
Catalytic typeMetallo
NC-IUBMBNot yet included in IUBMB recommendations.
Activity statushuman: putative
mouse: putative
SpecificityDespite the third zinc ligand being aspartic acid, ADAMDEC1 is proteolytically active and cleaves the bait region of alpha2-macroglobulin. Replacing the aspartic acid with histidine dramatically increases cleavage (Lund et al., 2013). Cleavage of carboxymethylated transferrin shows a restricted specificity for Leu in P1' (Lund et al., 2015).
Inhibitor commentsBatimastat is inhibitory. TIMPs do not inhibit the wild type peptidase, but TIMP-3 inhibits the Asp362His mutant (Lund et al., 2015).
StructureThe sequence consists of a prodomain and a metallopeptidase domain. The human sequence has an unpaired cysteine residue in the catalytic domain (Lund et al., 2015).
PhysiologyADAMDEC1 was initially thought to be involved in the immune response because it was present in mature, follicular dendritic cells and germinal centres in the spleen (Mueller et al., 2001) and macrophages (Fritsche et al., 2003). However, it is also found in uterine stromal cells (Baran et al., 2003) and transcripts are highly expressed in pulmonary sarcoidosis (Crouser et al., 2009).
Biological aspectsThe precursor is activated by furin (Mueller et al., 2001).
Other databases TREEFAM
Human genetics
Gene symbol Locus Megabases Ensembl Entrez gene Gene Cards OMIM
ADAMDEC1 8p21.1 ENSG00000134028 27299 ADAMDEC1 606393
Mouse genetics
Gene symbol Position Megabases Ensembl Entrez gene MGI
Adamdec1 14:D1 ENSMUSG00000022057 58860 MGI:1917650