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Key Documents

SCP0116

Sigma-Aldrich

Chromogranin A (324-337) WE 14 human

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About This Item

Empirical Formula (Hill Notation):
C72H116N18O24S1
Molecular Weight:
1649.86
UNSPSC Code:
12352200
NACRES:
NA.32

Assay

≥95% (HPLC)

form

lyophilized

composition

Peptide Content, ≥68%

storage condition

protect from light

storage temp.

−20°C

Amino Acid Sequence

Trp-Ser-Lys-Met-Asp-Gln-Leu-Ala-Lys-Glu-Leu-Thr-Ala-Glu

Application

Chromogranin A (parathyroid secretory protein 1) is a precursor of the vasostatin, pancreastatin, catestatin, parastatin, chromostatin, GE-25 and WE-14. WE 14 is used to search for its as yet undefined physiological roles.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Per-Gøran Krüger et al.
Regulatory peptides, 114(1), 29-35 (2003-05-24)
Catestatin (bovine CgA(344-364)) is a cationic peptide, which besides reducing catecholamine secretion from chromaffin cells in vitro also acts a potent vasodilator in the rat in vivo. The alleged histamine releasing effect of catestatin was tested in vitro in rat
The modulatory effects of WE-14 on histamine release from rat peritoneal mast cells.
P Forsythe et al.
Inflammation research : official journal of the European Histamine Research Society ... [et al.], 46 Suppl 1, S13-S14 (1997-03-01)
W J Curry et al.
Annals of the New York Academy of Sciences, 971, 311-316 (2002-11-20)
The neuropeptide WE-14 is derived from the posttranslational processing of chromogranin A (CgA). While CgA is expressed in a preponderance of neuroendocrine cells, WE-14 is generated in a distinct subpopulation of CgA-immunopositive cells, most notably in the adrenal, pituitary, and
Carmel Mary McVicar et al.
Regulatory peptides, 115(1), 1-10 (2003-07-23)
Immunohistochemical analysis of the male and female rat adenohypophysis revealed that chromogranin A (CgA), beta-granin and WE-14 immunostaining was localised to follicle stimulating hormone (FSH) producing cells, while luteinizing hormone (LH) producing cells exhibited chromogranin A and beta-granin immunostaining. The
William James Curry et al.
Microscopy research and technique, 62(5), 408-414 (2003-11-06)
WE-14 is generated in subpopulations of chromogranin A immunopositive endocrine cells and neurons including those innervating the anterior uvea. This study investigated WE-14 in intact sclero-limbo-corneal tissue from embryonic (E17), neonatal (N0-N16), and adult mice using immunocytochemistry and confocal scanning

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