BIM-1

Biological protein kinase C inhibitor From Wikipedia, the free encyclopedia

BIM-1 (GF 109203X) and the related compounds BIM-2, BIM-3, and BIM-8 are bisindolylmaleimide-based protein kinase C (PKC) inhibitors. These inhibitors also inhibit PDK1 explaining the higher inhibitory potential of LY33331 compared to the other BIM compounds a bisindolylmaleimide inhibitor toward PDK1.[1][2]

Quick facts Names, Identifiers ...
BIM-1
Names
IUPAC name
3-{1-[3-(Dimethylamino)propyl]-1H-indol-3-yl}-4-(1H-indol-3-yl)-1H-pyrrole-2,5-dione
Other names
RBT205 INHIBITOR, BI1
Identifiers
3D model (JSmol)
ChemSpider
DrugBank
ECHA InfoCard 100.122.321 Edit this at Wikidata
EC Number
  • 603-702-0
MeSH bisindolylmaleimide
UNII
  • Key: QMGUOJYZJKLOLH-UHFFFAOYSA-N
  • InChI=1S/C25H24N4O2/c1-28(2)12-7-13-29-15-19(17-9-4-6-11-21(17)29)23-22(24(30)27-25(23)31)18-14-26-20-10-5-3-8-16(18)20/h3-6,8-11,14-15,26H,7,12-13H2,1-2H3,(H,27,30,31)
  • O=C5C(\c2c1ccccc1[nH]c2)=C(\c4c3ccccc3n(c4)CCCN(C)C)C(=O)N5
Properties
C25H24N4O2
Molar mass 412.493 g·mol−1
Appearance Orange solid
Density 1.3 g/cm3
Melting point 208 to 210 °C (406 to 410 °F; 481 to 483 K)
Solubility in DMSO Soluble[vague]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Function

BIM-1 is present in the structure of PKCiota[3] (residue 574-turn[4] motif). It needs to be phosphorylated towards a PKCbeta-specific inhibitor site-directed mutagenesis of the compound for its full activation[5] and co-crystallized as an asymmetric pair which is mediated by 3-phosphoinositide-dependent protein kinase-1 (PDK1)[6] are downstream characteristics of PKCs and PKB/AKT.[7]

Scope

The bound BIM-1 inhibitor blocks bilobal[8] interactions, the ATP-binding site, features an ATP-competitive inhibitor, 2-methyl-1H-indol-3-yl-BIM-1,[8] the crystal structure[8] and catalytic subunit with a 20-amino acid substrate analog inhibitor structure is bilobal MgATP a transport protein that provide a more precise description of which is influenced by lobe-lobe interactions binding in cells expressing both forms a pair of kinase-inhibitor complexes[7] with ferritin in a soluble and non-toxic form (Poisson-Boltzmann[9]) and a portion of the inhibitor peptide[10] a lysine residue, has been shown to be involved in ATP binding.

Interactions

The PKCiota-BIM-1 complex[4] interacts with the zinc finger of lambda/iota PKC characterization of lambda-interacting protein (LIP)[5] (lambda-interacting protein; a selective activator of lambda/iota PKC). Phosphorylation of a PKC induces a conformation leading to import of a PKC into the nucleus.[11] The entire 587-amino acid coding region of a new PKC isoform, PKC iota.[11] Where Thr-412[5][12] (activation loop of the kinase domain) at PKCiota/lambda phosphorylates glyceraldehyde-3-phosphate dehydrogenase (GAPDH)[13] that sort cargo to the anterograde pathway[14] the phosphorylation pathway(s) involved in this phenomenon[2] mimic glutamate and can adopt two limiting diastereomeric (syn and anti) conformation[15] biosynthetically related indolocarbazole analogs[16] and in Proto-oncogene serine/threonine-protein kinase Pim-1-Peptide as a phosphorylation target including itself. The bound BIM-1 inhibitor blocks the ATP-binding site and puts the kinase domain into an intermediate open[7] conformation.[4] The value of such calculations lies in understanding[9] a variant was designed which showed improved binding characteristics[17] of configurationally stable atropisomeric bisindolylmaleimides[15] where the two kinase domains, and two different inhibitor conformers bind in different orientations,[7] the hinge region of staurosporine[18]-Pim-1 resembles[19] co-crystallized[8] as an asymmetric pair of biosynthetically 'related' indolocarbazole analogs. It is a modulator of the 5-HT2A receptor.[20]

References

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