ADAM-2, also known as PH-30 and Fertilin- was first described as a sperm-egg fusion protein from guinea pig. A member of the metalloproteinase family containing disintigrin-like domains (ADAMs), the function of ADAM-2 is still poorly understood. Unlike ADAM-1, ADAM-2 does not contain the canonical HExxHxxxxxH zinc metalloproteinase motif, and is not thought to be proteolytically active. Like the other ADAMs, ADAM-2 domain structure consists of a signal sequence followed by a propeptide domain, a metalloproteinase domain, a disintegrin domain cysteine-rich domain, an EGF-like domain, a transmembrane domain, and a cytoplasmic domain. Three isoforms of ADAM-2 are reported to date, which differ in the beginning of the metalloproteinase domain and cysteine-rich domain. The sequences are coded from intronless genes. The longest ADAM-2 message encodes a protein of 735 amino acids, with a predicted mass of 82.5 kDa and a pI of 5.73. The 716 amino acid form of ADAM-2 has a deletion in the start of the metalloproteinase domain, relative to the longer form, and has a predicted mass of 80.2 kDa and pI of 5.75. The shorter form of 579 amino acids shared the deletion in the MP domain, and also has a deletion in the cystein-rich domain. Localized on the surface of sperm, the ADAM-2 isoforms are thought to form a heterodimer with ADAM-1 (fertilin-a), and facilitate sperm-egg fusion, although there is some controversy about the precise actions the proteins play. Integrin a6 on the egg surface is thought to dock with a QDECD motif in the disintegrin domain of ADAM-2, and there is some speculation that ADAM-1/ADAM-2 heterodimewr initiated ADAM-3 production on the cell surface.

A disintegrin and metalloproteinase domain 2; ADAM 2; ADAM metallopeptidase domain 2; ADAM2_MOUSE; AI323749; Cancer/testis antigen 15; CRYN1; CRYN2; CT15; Disintegrin and metalloproteinase domain-containing protein 2; Fertilin beta; Fertilin subunit beta; Ftnb; PH 30; PH 30b; PH-30; PH30; Ph30 beta; PH30-beta.

Human,Mouse

WB

WB 1:500-2000

63/80kD

2515

Q99965

https://www.uniprot.org/uniprotkb/Q99965

Membrane; Single-pass type I membrane protein.

Expressed specifically in testis.

KLH conjugated synthetic peptide derived from mouse ADAM2

Rabbit

Polyclonal

IgG

affinity purified by Protein A

Liquid

Preservative: 0.02% Proclin300, Constituents: 1% BSA, 0.01M PBS, pH7.4.

Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles.