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Documentos clave

A1527

Sigma-Aldrich

Adrenocorticotropic Hormone Fragment 7-38 human

≥97% (HPLC)

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About This Item

Fórmula empírica (notación de Hill):
C167H257N47O46
Número de CAS:
Peso molecular:
3659.11
MDL number:
UNSPSC Code:
51111800
NACRES:
NA.77

sterility

non-sterile

Quality Level

assay

≥97% (HPLC)

form

powder

UniProt accession no.

storage temp.

−20°C

Gene Information

human ... POMC(5443)

Amino Acid Sequence

Phe-Arg-Trp-Gly-Lys-Pro-Val-Gly-Lys-Lys-Arg-Arg-Pro-Val-Lys-Val-Tyr-Pro-Asn-Gly-Ala-Glu-Asp-Glu-Ser-Ala-Glu-Ala-Phe-Pro-Leu-Glu

Application

Adrenocorticotropic hormone fragment 7-38 human has been used as astandard in external calibration for mass spectrometry.

Biochem/physiol Actions

Adrenocorticotropic hormone (ACTH) is a polypeptide hormone thatstimulates adrenocortical activity. It is produced by the prohormoneproopiomelanocortin (POMC), which is synthesized in the corticotroph andmelanotroph cells found in the intermediate and anterior lobe of the pituitarygland and the arcuate nucleus of the hypothalamus. ACTH is also synthesized inthe skin. It plays a role in controlling steroidogenesis in the adrenal glandand prevents reactive oxygen species (ROS)-induced cell toxicity. Higher levelsof ACTH lead to skin hyperpigmentation due to the hyperstimulation ofmelanocytes, characteristic of primary adrenal insufficiency (PAI). Deficiencyof ACTH synthesis, receptors, or signaling is associated with adrenalinsufficiency.

Other Notes

ACTH fragment that is a potent inhibitor of ACTH-stimulated adenylate cyclase.
Lyophilized from 0.1% TFA in H2O

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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C H Li et al.
Proceedings of the National Academy of Sciences of the United States of America, 75(9), 4306-4309 (1978-09-01)
A corticotropin-inhibiting peptide (CIP) has been isolated from human pituitary extracts. It consists of 32 amino acids with a proposed sequence identical to residues 7--38 of corticotropin (ACTH). The peptide has been synthesized by the solid-phase method. The melanotropic activity
Min-Jung Kang et al.
Analytical and bioanalytical chemistry, 404(8), 2249-2258 (2012-09-04)
A multireaction monitoring method using high-performance liquid chromatography-tandem mass spectrometry was developed for 12 target peptides for determination of endogenous peptide concentrations in human serum. Chromatographic separation conditions were optimized and recoveries for liquid-liquid extraction, solid-phase extraction (SPE), and ultrafiltration
P Trindade et al.
Neuroscience letters, 487(1), 47-52 (2010-10-06)
The fine-tuning of topographically organized projections in sensory systems is strongly influenced by electrical activity and use-dependent modifications in synaptic strength. Since calcineurin (CaN), a Ca(2+)-calmodulin dependent serine/threonine phosphatase has been associated with activity-dependent modifications in synaptic efficacy we studied
D H Patterson et al.
Analytical chemistry, 67(21), 3971-3978 (1995-11-01)
The utility of matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry for the analysis of C-terminal peptide ladders from carboxypeptidase Y (CPY) digestions is discussed. MALDI analysis of aliquots of an optimized time-dependent CPY digestion of ACTH 7-38 fragment allowed for
A Markowska et al.
Cell and tissue research, 272(3), 439-445 (1993-06-01)
Within two weeks, hypophysectomy induced in rats a striking decrease in the level of circulating ACTH (the concentration of which was at the limit of sensitivity of our assay system), coupled with a net reduction in the plasma corticosterone concentration

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