Proinsulin C-Peptide (55-89) human

• Catalog No.: C4999
• CAS Number: 11097-48-6
• M. F.: C153H259N49O52
• M. W.: 3616.99066
• Purity: ≥95% (HPLC)

SYNONYMS

• IUPAC name: (4S)-4-{[(1S)-1-[({[({2-[(2S)-2-[({[(1S)-1-[({[(1S)-1-{[(1S)-1-{[(2S)-1-[(2S)-2-{[(1S)-1-{[(1S)-1-{[(1S)-1-{[(1S)-1-[({[(1S)-1-{[(1S)-1-{[(1S)-1-{[(1S)-5-amino-1-{[(1S)-4-carbamimidamido-1-carboxybutyl]carbamoyl}pentyl]carbamoyl}-3-carbamoylpropyl]carbamoyl}-3-methylbutyl]carbamoyl}-2-hydroxyethyl]carbamoyl}methyl)carbamoyl]-3-carboxypropyl]carbamoyl}-3-methylbutyl]carbamoyl}ethyl]carbamoyl}-3-methylbutyl]carbamoyl}pyrrolidin-1-yl]-4-carbamoyl-1-oxobutan-2-yl]carbamoyl}-3-methylbutyl]carbamoyl}-2-hydroxyethyl]carbamoyl}methyl)carbamoyl]ethyl]carbamoyl}methyl)carbamoyl]pyrrolidin-1-yl]-2-oxoethyl}carbamoyl)methyl]carbamoyl}methyl)carbamoyl]-3-methylbutyl]carbamoyl}-4-[(2S)-2-[(2S)-2-{2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-amino-5-carbamimidamidopentanamido]-5-carbamimidamidopentanamido]-4-carboxybutanamido]propanamido]-4-carboxybutanamido]-3-carboxypropanamido]-4-methylpentanamido]-4-carbamoylbutanamido]-3-methylbutanamido]acetamido}-4-carbamoylbutanamido]-3-methylbutanamido]butanoic acid
• IUPAC Traditional name: (4S)-4-{[(1S)-1-[({[({2-[(2S)-2-[({[(1S)-1-[({[(1S)-1-{[(1S)-1-{[(2S)-1-[(2S)-2-{[(1S)-1-{[(1S)-1-{[(1S)-1-{[(1S)-1-[({[(1S)-1-{[(1S)-1-{[(1S)-1-{[(1S)-5-amino-1-{[(1S)-4-carbamimidamido-1-carboxybutyl]carbamoyl}pentyl]carbamoyl}-3-carbamoylpropyl]carbamoyl}-3-methylbutyl]carbamoyl}-2-hydroxyethyl]carbamoyl}methyl)carbamoyl]-3-carboxypropyl]carbamoyl}-3-methylbutyl]carbamoyl}ethyl]carbamoyl}-3-methylbutyl]carbamoyl}pyrrolidin-1-yl]-4-carbamoyl-1-oxobutan-2-yl]carbamoyl}-3-methylbutyl]carbamoyl}-2-hydroxyethyl]carbamoyl}methyl)carbamoyl]ethyl]carbamoyl}methyl)carbamoyl]pyrrolidin-1-yl]-2-oxoethyl}carbamoyl)methyl]carbamoyl}methyl)carbamoyl]-3-methylbutyl]carbamoyl}-4-[(2S)-2-[(2S)-2-{2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-amino-5-carbamimidamidopentanamido]-5-carbamimidamidopentanamido]-4-carboxybutanamido]propanamido]-4-carboxybutanamido]-3-carboxypropanamido]-4-methylpentanamido]-4-carbamoylbutanamido]-3-methylbutanamido]acetamido}-4-carbamoylbutanamido]-3-methylbutanamido]butanoic acid
• Synonyms: Proinsulin connecting peptide

DATABASE IDS

• CAS Number: 11097-48-6
• MDL Number: MFCD00076294

PROPERTIES

• Empirical Formula (Hill Notation): C153H259N49O52
• Purity: ≥95% (HPLC)
• Storage Temperature: -20°C
• German water hazard class: 3

DETAILS

Description (English)

Amino Acid Sequence
Arg-Arg-Glu-Ala-Glu-Asp-Leu-Gln-Val-Gly-Gln-Val-Glu-Leu-Gly-Gly-Gly-Pro-Gly-Ala-Gly-Ser-Leu-Gln-Pro-Leu-Ala-Leu-Glu-Gly-Ser-Leu-Gln-Lys-Arg
Other Notes
Human proinsulin, the single-chain peptide precursor of insulin, consists of the insulin A and B chains connected by the 31 amino acid C-peptide. Cleavage of proinsulin by proteolytic enzymes produces insulin and free C-peptide. The product here is the 35-mer peptide (Arg-Arg-C-Peptide-Lys-Arg) observed to separate the insulin A and B chains.1
Biochem/physiol Actions
C-Peptide Fragment (55-89) is a fragment derived from the proinsulin C-peptide. C-peptide has cell signaling activity that involves calcium-dependent intracellular signaling. C-Peptide Fragment 55-89 may be used to help researchers understand the role of specific sequences within the C-peptide in binding, conformation and function of C-peptide.
C-Peptide was initially thought to have no intrinsic biological activity. More recent research has identified multiple biological effects of C-peptide, including binding to cell membranes, activation of signaling pathways, and stimulation of Na+,K+-ATPase and endothelial nitric oxide synthetase. However, the exact function of C-peptide is unclear due to conflicting physiological effects.

Description (简体中文)

Amino Acid Sequence
Arg-Arg-Glu-Ala-Glu-Asp-Leu-Gln-Val-Gly-Gln-Val-Glu-Leu-Gly-Gly-Gly-Pro-Gly-Ala-Gly-Ser-Leu-Gln-Pro-Leu-Ala-Leu-Glu-Gly-Ser-Leu-Gln-Lys-Arg
Other Notes
Human proinsulin, the single-chain peptide precursor of insulin, consists of the insulin A and B chains connected by the 31 amino acid C-peptide. Cleavage of proinsulin by proteolytic enzymes produces insulin and free C-peptide. The product here is the 35-mer peptide (Arg-Arg-C-Peptide-Lys-Arg) observed to separate the insulin A and B chains.1
Biochem/physiol Actions
C-Peptide Fragment (55-89) is a fragment derived from the proinsulin C-peptide. C-peptide has cell signaling activity that involves calcium-dependent intracellular signaling. C-Peptide Fragment 55-89 may be used to help researchers understand the role of specific sequences within the C-peptide in binding, conformation and function of C-peptide.
C-Peptide was initially thought to have no intrinsic biological activity. More recent research has identified multiple biological effects of C-peptide, including binding to cell membranes, activation of signaling pathways, and stimulation of Na+,K+-ATPase and endothelial nitric oxide synthetase. However, the exact function of C-peptide is unclear due to conflicting physiological effects.