Chromogranin A Protein (CHGA) (AA 1-457) (His tag)

Catalog No. ABIN7505660

Product Details

Target: Chromogranin A (CHGA)

Protein Type: Recombinant

Protein Characteristics: AA 1-457

Origin: Human

Source: HEK-293 Cells

Purification tag / Conjugate: This Chromogranin A protein is labelled with His tag.

Sequence: Met1-Gly457

Characteristics: A DNA sequence encoding the Human CHGA protein (P10645) (Met1-Gly457) was expressed with a C-His.

Purity: > 95 % as determined by reducing SDS-PAGE.

Application Details

Restrictions: For Research Use only

Handling

Format: Lyophilized

Buffer: Lyophilized from sterile PBS, pH 7.4.
Normally 5 % - 8 % trehalose, mannitol and 0.01 % Tween80 are added as protectants before lyophilization.

Storage: 4 °C,-20 °C,-80 °C

Storage Comment: Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.

Expiry Date: 12 months

Target Details

Target: Chromogranin A (CHGA)

Alternative Name: CHGA (CHGA Products)

Synonyms: CGA Protein, CG-ALPHA Protein, FSHA Protein, GPHA1 Protein, GPHa Protein, HCG Protein, LHA Protein, TSHA Protein, ChrA Protein, fj05f09 Protein, si:dkey-177p2.2 Protein, wu:fj05f09 Protein, zgc:101749 Protein, zgc:56075 Protein, CHGA Protein, cgA Protein, chga Protein, chromogranin A Protein, glycoprotein hormones, alpha polypeptide Protein, uncharacterized CHGA Protein, chromogranin A S homeolog Protein, CHGA Protein, CGA Protein, Chga Protein, chga Protein, chga.S Protein

Background:

Abbreviation: CHGA

Target Synonym: Chromogranin-A,CgA,Pituitary secretory protein I,SP-I,CHGA

Background: Chromogranin A (CgA), also known as pituitary secretory protein I (SP-I), is a member of the granin family of regulated secretory proteins. CgA shares several protein characteristics common to the granin family: acidic isoelectric point, the capacity to bind calcium ions, the ability to form aggregates and multiple dibasic cleavage sites. Mature human CgA is 439 amino acids (aa) and contains 10 dibasic, proteolytic cleavage sites, capable of yielding several smaller peptides, each displaying a unique function. Mature human CgA shares 63 % aa sequence identity with mouse and rat CgA. CgA is expressed exclusively in the secretory dense core granules of most normal and neoplastic neuroendocrine cells. Increased levels of CgA have been detected inpatients with neuroendocrine tumors as well as non-neuroendocrine tumors, hence CgA is an important serological marker for tumor diagnosis and monitoring tumorprogression/regression. It has been demonstrated in mouse model that full-length CgA containing its C-terminal region can impair angiogenesis and tumor growth. In addition, CgA can bind to Secretogranin III to regulate the biogenesis of secretory granules.

Molecular Weight:

Calculated MW: 50.16 kDa

Observed MW: 75 kDa

UniProt: P10645

Pathways: Negative Regulation of Hormone Secretion, cAMP Metabolic Process, Regulation of G-Protein Coupled Receptor Protein Signaling