• 靶点：
• PGA5

• 基因名称：
• PGA3/PGA4/PGA5

• 蛋白名称：
• Pepsin A

• Human Gene Id：
• 5222

• Human Swiss Prot No：
• P00790

• 免疫原：
• Purified recombinant fragment of human PGA5 expressed in E. Coli.

• 特异性：
• PGA5 Monoclonal Antibody detects endogenous levels of PGA5 protein.

• 组成：
• Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.

• 来源：
• Monoclonal, Mouse

• 稀释：
• WB 1:500 - 1:2000. IHC 1:200 - 1:1000. ELISA: 1:10000.. IF 1:50-200

• 纯化工艺：
• Affinity purification

• 储存：
• -15°C to -25°C/1 year(Do not lower than -25°C)

• 分子量：
• 42kD

• 背景：
• This gene encodes a protein precursor of the digestive enzyme pepsin, a member of the peptidase A1 family of endopeptidases. The encoded precursor is secreted by gastric chief cells and undergoes autocatalytic cleavage in acidic conditions to form the active enzyme, which functions in the digestion of dietary proteins. This gene is found in a cluster of related genes on chromosome 11, each of which encodes one of multiple pepsinogens. Pepsinogen levels in serum may serve as a biomarker for atrophic gastritis and gastric cancer. [provided by RefSeq, Jul 2015],

• 功能：
• catalytic activity:Preferential cleavage: hydrophobic, preferably aromatic, residues in P1 and P1' positions. Cleaves 1-Phe-|-Val-2, 4-Gln-|-His-5, 13-Glu-|-Ala-14, 14-Ala-|-Leu-15, 15-Leu-|-Tyr-16, 16-Tyr-|-Leu-17, 23-Gly-|-Phe-24, 24-Phe-|-Phe-25 and 25-Phe-|-Tyr-26 bonds in the B chain of insulin.,function:Shows particularly broad specificity; although bonds involving phenylalanine and leucine are preferred, many others are also cleaved to some extent.,similarity:Belongs to the peptidase A1 family.,

• 细胞定位：
• extracellular exosome,multivesicular body lumen,

• 组织表达：
• Brain,Colon,Kidney,Placenta,Skeletal muscle,

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