Cephaibol B
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| Category | Bioactive by-products |
| Catalog number | BBF-00507 |
| CAS | |
| Molecular Weight | 1685.01 |
| Molecular Formula | C83H129N17O20 |
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Description
It is produced by the strain of Acremonium tubakii DSM 12774. It has anti-gram-positive bacterial activity, but no anti-gram-negative bacterial activity.
Specification
| IUPAC Name | 2-[[1-[2-[[2-[[2-[[2-[[2-[[2-[[2-[[2-[(2-acetamido-3-phenylpropanoyl)amino]-2-methylpropanoyl]amino]-2-methylpropanoyl]amino]-2-methylpropanoyl]amino]-2-methylbutanoyl]amino]acetyl]amino]-4-methylpentanoyl]amino]-2-methylbutanoyl]amino]-2-methylpropanoyl]-4-hydroxypyrrolidine-2-carbonyl]amino]-N-[1-[4-hydroxy-2-[[1-[2-[(1-hydroxy-3-phenylpropan-2-yl)carbamoyl]pyrrolidin-1-yl]-2-methyl-1-oxopropan-2-yl]carbamoyl]pyrrolidin-1-yl]-2-methyl-1-oxobutan-2-yl]pentanediamide |
| Canonical SMILES | CCC(C)(C(=O)NCC(=O)NC(CC(C)C)C(=O)NC(C)(CC)C(=O)NC(C)(C)C(=O)N1CC(CC1C(=O)NC(CCC(=O)N)C(=O)NC(C)(CC)C(=O)N2CC(CC2C(=O)NC(C)(C)C(=O)N3CCCC3C(=O)NC(CC4=CC=CC=C4)CO)O)O)NC(=O)C(C)(C)NC(=O)C(C)(C)NC(=O)C(C)(C)NC(=O)C(CC5=CC=CC=C5)NC(=O)C |
| InChI | InChI=1S/C83H129N17O20/c1-20-81(17,97-70(115)78(11,12)95-69(114)77(9,10)94-68(113)76(7,8)90-63(108)56(86-48(6)102)40-50-32-27-24-28-33-50)71(116)85-43-61(106)88-55(38-47(4)5)64(109)92-82(18,21-2)72(117)96-80(15,16)74(119)99-44-52(103)41-58(99)66(111)89-54(35-36-60(84)105)62(107)93-83(19,22-3)75(120)100-45-53(104)42-59(100)67(112)91-79(13,14)73(118)98-37-29-34-57(98)65(110)87-51(46-101)39-49-30-25-23-26-31-49/h23-28,30-33,47,51-59,101,103-104H,20-22,29,34-46H2,1-19H3,(H2,84,105)(H,85,116)(H,86,102)(H,87,110)(H,88,106)(H,89,111)(H,90,108)(H,91,112)(H,92,109)(H,93,107)(H,94,113)(H,95,114)(H,96,117)(H,97,115) |
| InChI Key | DGKRSIOCIYNNHE-UHFFFAOYSA-N |
Properties
| Antibiotic Activity Spectrum | Gram-positive bacteria |
Reference Reading
1. Crystal structures of cephaibols
Gábor Bunkóczi, Matthias Schiell, László Vértesy, George M Sheldrick J Pept Sci. 2003 Nov-Dec;9(11-12):745-52. doi: 10.1002/psc.496.
The crystal structures of the peptaibol antibiotics cephaibol A, cephaibol B and cephaibol C have been determined at ca. 0.9 A resolution. All three adopt a helical conformation with a sharp bend (of about 55 degrees) at the central hydroxyproline. All isovalines were found to possess the D configuration, superposition of all four models (there are two independent molecules in the cephaibol B structure) shows that the N-terminal helix is rigid and the C-terminus is flexible. There are differences in the hydrogen bonding patterns for the three structures that crystallize in different space groups despite relatively similar unit cell dimensions, but only in the case of cephaibol C does the packing emulate the formation of a membrane channel believed to be important for their biological function.
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Bio Calculators
* Our calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
It is commonly abbreviated as: C1V1 = C2V2
* Total Molecular Weight:
g/mol
Tip: Chemical formula is case sensitive. C22H30N4O √ c22h30n40 ╳
