Human Aminopeptidase N/CD13 Elisa Kit

Species :

Human

Assay Type :

Solid Phase Sandwich ELISA

Sensitivity :

45 pg/mL

Detection Range :

93.8 - 6,000 pg/mL

Assay Length :

3.5h

Sample Type :

Serum; Plasma; Cell culture supernatant.

Long Name :

S100 calcium-binding protein A8/S100 calcium-binding protein A9 Heterodimer

Synonyms :

Calprotectin; S100A8/S100A9 Heterodimer

Background :

S100A8 (also MRP8 and calgranulin A) is a 10 kDa member of the S100 family, EF-hand superfamily of Ca-binding proteins. It is produced by neutrophils and monocytes, and forms Ca2+-dependent heterodimer/heterotetramer complexes (termed calprotectin) with S100A9. It functions both intracellularly and extracellularly, where it binds to RAGE and CD36. Human S100A8 is 93 amino acids (aa) in length. It contains two EF-hand motifs (aa 12 - 47 and 46 - 81) and one high-affinity Ca2+-binding site (aa 59 - 70). There may be one splice form that shows a 15 aa substitution for the C-terminal 14 amino acids. Although mouse S100A8 is cleaved by MMP-2 after Asn21, it is unclear if human S100A8 is susceptible. Full-length human S100A8 is 57% and 74% aa identical to mouse and canine S100A8, respectively.