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CN

C4999

Proinsulin C-Peptide (55-89) human

≥95% (HPLC)

Synonym(s):

Proinsulin connecting peptide

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About This Item

Empirical Formula (Hill Notation):
C153H259N49O52
CAS Number:
11097-48-6
Molecular Weight:
3616.99
UNSPSC Code:
12352209
PubChem Substance ID:
329775073
NACRES:
NA.26
MDL number:
MFCD00076294

Key Documents

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Product Name

Proinsulin C-Peptide (55-89) human, bioactive peptide hormone

SMILES string

CC(C)C[C@H](NC(=O)[C@H](CCC(O)=O)NC(=O)[C@@H](NC(=O)[C@H](CCC(N)=O)NC(=O)CNC(=O)[C@@H](NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC(O)=O)NC(=O)[C@H](CCC(O)=O)NC(=O)[C@H](C)NC(=O)[C@H](CCC(O)=O)NC(=O)[C@H](CCCNC(N)=N)NC(=O)[C@@H](N)CCCNC(N)=N)C(C)C)C(C)C)C(=O)NCC(=O)NCC(=O)NCC(=O)N1CCC[C@H]1C(=O)NCC(=O)N[C@@H](C)C(=O)NCC(=O)N[C@@H](CO)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N2CCC[C@H]2C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCC(O)=O)C(=O)NCC(=O)N[C@@H](CO)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(O)=O

InChI key

JEPNOJXFZHBCTB-ZCUALFGZSA-N

InChI

1S/C153H259N49O52/c1-71(2)55-94(193-134(237)91(40-48-119(222)223)189-148(251)122(78(15)16)200-135(238)86(33-41-105(156)205)179-112(212)67-175-147(250)121(77(13)14)199-136(239)88(35-43-107(158)207)188-139(242)97(58-74(7)8)194-142(245)100(61-120(224)225)197-133(236)90(39-47-118(220)221)182-124(227)80(18)177-129(232)89(38-46-117(218)219)186-130(233)84(29-23-51-167-152(162)163)183-126(229)82(155)27-22-50-166-151(160)161)128(231)172-63-110(210)169-62-109(209)170-68-115(215)201-53-25-31-103(201)145(248)174-64-111(211)176-79(17)123(226)171-65-113(213)180-101(69-203)144(247)196-99(60-76(11)12)141(244)190-92(36-44-108(159)208)149(252)202-54-26-32-104(202)146(249)198-95(56-72(3)4)137(240)178-81(19)125(228)192-96(57-73(5)6)138(241)185-85(37-45-116(216)217)127(230)173-66-114(214)181-102(70-204)143(246)195-98(59-75(9)10)140(243)187-87(34-42-106(157)206)132(235)184-83(28-20-21-49-154)131(234)191-93(150(253)254)30-24-52-168-153(164)165/h71-104,121-122,203-204H,20-70,154-155H2,1-19H3,(H2,156,205)(H2,157,206)(H2,158,207)(H2,159,208)(H,169,210)(H,170,209)(H,171,226)(H,172,231)(H,173,230)(H,174,248)(H,175,250)(H,176,211)(H,177,232)(H,178,240)(H,179,212)(H,180,213)(H,181,214)(H,182,227)(H,183,229)(H,184,235)(H,185,241)(H,186,233)(H,187,243)(H,188,242)(H,189,251)(H,190,244)(H,191,234)(H,192,228)(H,193,237)(H,194,245)(H,195,246)(H,196,247)(H,197,236)(H,198,249)(H,199,239)(H,200,238)(H,216,217)(H,218,219)(H,220,221)(H,222,223)(H,224,225)(H,253,254)(H4,160,161,166)(H4,162,163,167)(H4,164,165,168)/t79-,80-,81-,82-,83-,84-,85-,86-,87-,88-,89-,90-,91-,92-,93-,94-,95-,96-,97-,98-,99-,100-,101-,102-,103-,104-,121-,122-/m0/s1

assay

≥95% (HPLC)

form

powder

color

white

storage temp.

−20°C

Quality Level

200

Related Categories

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.

General description

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.

Other Notes

Lyophilized from 0.1% TFA in H2O

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

涉药品监管产品
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Certificates of Analysis (COA)

Lot/Batch Number
0000237118
0000237119
0000230279
0000230277
097M4762V

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Proinsulin C-peptide prevents type-1 diabetes-induced decrease of renal Na+-K+-ATPase α1-subunit in rats.
Nordquist L, Shimada K, et al.
Diabetes and Metabolism, 26, 193-199 (2010)
R S Mughal et al.
Diabetologia, 53(8), 1761-1771 (2010-05-13)
Endothelial cells (ECs) and smooth muscle cells (SMCs) play key roles in the development of intimal hyperplasia in saphenous vein (SV) bypass grafts. In diabetic patients, insulin administration controls hyperglycaemia but cardiovascular complications remain. Insulin is synthesised as a pro-peptide
C-Peptide: A new mediator of atherosclerosis in diabetes.
Vasic, D., and Walcher, D.
Mediators of Inflammation, 858692-858692 (2012)
The conformational protential of porcine proinsulin C-peptide.
Vogt HP, Wollmer A, et al.
Hoppe-Seyler'S Zeitschrift fur Physiologische Chemie, 357, 107-116 (1971)
John Wahren et al.
Experimental diabesity research, 5(1), 15-23 (2004-06-17)
New results present C-peptide as a biologically active peptide hormone in its own right. Although C-peptide is formed from proinsulin and cosecreted with insulin, it is a separate entity with biochemical and physiological characteristics that differ from those of insulin.
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