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Key Documents

J3705

Sigma-Aldrich

JB1 trifluoroacetate salt

≥98% (HPLC)

Synonym(s):

H-Cys-Tyr-Ala-Ala-Pro-Leu-Lys-Pro-Ala-Lys-Ser-Cys-OH trifluoroacetate salt, JB-1 trifluoroacetate salt, L-Cysteinyl-L-tyrosyl-L-alanyl-L-alanyl-L-prolyl-L-leucyl-L-lysyl-L-prolyl-L-alanyl-L-lysyl-L-seryl-L-Cysteine, cyclic (1-12)-disulfide trifluoroacetate salt

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About This Item

Empirical Formula (Hill Notation):
C55H88N14O15S2 · xC2HF3O2
CAS Number:
Molecular Weight:
1249.50 (free base basis)
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.77

Quality Level

Assay

≥98% (HPLC)

form

film

storage condition

desiccated

shipped in

wet ice

storage temp.

−20°C

SMILES string

CC(C)C[C@@H]1NC(=O)[C@@H]2CCCN2C(=O)[C@H](C)NC(=O)[C@H](C)NC(=O)[C@H](Cc3ccc(O)cc3)NC(=O)[C@@H](N)CSSC[C@H](NC(=O)[C@H](CO)NC(=O)[C@H](CCCCN)NC(=O)[C@H](C)NC(=O)[C@@H]4CCCN4C(=O)[C@H](CCCCN)NC1=O)C(O)=O

InChI

1S/C55H88N14O15S2/c1-29(2)24-38-49(77)63-37(13-7-9-21-57)54(82)69-23-11-14-42(69)51(79)60-31(4)45(73)62-36(12-6-8-20-56)47(75)66-40(26-70)50(78)67-41(55(83)84)28-86-85-27-35(58)46(74)64-39(25-33-16-18-34(71)19-17-33)48(76)59-30(3)44(72)61-32(5)53(81)68-22-10-15-43(68)52(80)65-38/h16-19,29-32,35-43,70-71H,6-15,20-28,56-58H2,1-5H3,(H,59,76)(H,60,79)(H,61,72)(H,62,73)(H,63,77)(H,64,74)(H,65,80)(H,66,75)(H,67,78)(H,83,84)/t30-,31-,32-,35-,36-,37-,38-,39-,40-,41-,42-,43-/m0/s1

InChI key

MPUVBZQBFGGAAS-XHGDPFBQSA-N

Biochem/physiol Actions

JB1 is an IGF-I peptide analog; IGF-1 receptor antagonist. IGF-1, once known as somatomedin C, is involved in a multitude of activites including promoting growth and development, particularly neural development, and involved in the growth and proliferation in a variety of human cancers. JB1 is a 12-amino acid cyclic peptide, an IGF-1 analog, used by researchers in a variety of fields to inhibit IGF activity by inhibiting binding of IGF-1 to its receptor.

Features and Benefits

This compound is featured on the InsR page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Storage Class Code

11 - Combustible Solids

WGK

nwg

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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M van Eickels et al.
British journal of pharmacology, 131(8), 1592-1596 (2001-01-05)
The effects of angiotensin-converting enzyme (ACE) inhibition and angiotensin type 1 (AT(1)) receptor blockade on insulin-like growth factor-I (IGF-I) induced proliferation and immediate-early-gene expression of neonatal rat cardiac fibroblasts were investigated. Moreover the role of the IGF-I receptor (IGF-IR) in
Jun Ren et al.
Cardiovascular research, 57(3), 738-748 (2003-03-06)
Cardiac resistance to IGF-1 occurs in diabetes and is attributed to cardiac dysfunction in diabetes. However, the mechanism of action responsible for cardiac IGF-1 resistance is still unknown. This study was designed to examine the impact of high glucose on
Feng Dong et al.
American journal of physiology. Heart and circulatory physiology, 289(1), H78-H84 (2005-03-01)
Hearts from severely Cu-deficient rats show a variety of pathological defects, including hypertrophy and, in intact hearts, depression of contractile function. Paradoxically, isolated cardiomyocytes from these rats exhibit enhanced contractile properties. Because hypertrophy and enhanced contractility observed with other pathologies
J Ren
Cardiovascular research, 46(1), 162-171 (2000-03-23)
Insulin-like growth factor I (IGF-1) stimulates cardiac growth and contraction, but resistance to its action has been reported in diabetes. This study was to determine if IGF-1-induced cardiac contractile action is altered in rats genetically predisposed to diabetes. Ventricular myocytes
Kohei Yamahara et al.
Hearing research, 374, 5-12 (2019-01-27)
In the context of acquired sensorineural hearing loss (SNHL), cochlear hair cells have long been thought to be among the most vulnerable elements in mammalian cochleae. However, recent studies have indicated that the synaptic connection between inner hair cells (IHC)

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