منابع مشابه
Molecules of Interest HC - toxin
HC-toxin is a cyclic tetrapeptide of structure cyclo(D-Pro-L-Ala-D-Ala-L-Aeo), where Aeo stands for 2-amino-9,10-epoxi-8-oxodecanoic acid. It is a determinant of specificity and virulence in the interaction between the producing fungus, Cochliobolus carbonum, and its host, maize. HC-toxin qualifies as one of the few microbial secondary metabolites whose ecological function in nature is understo...
متن کاملInhibition of maize histone deacetylases by HC toxin, the host-selective toxin of Cochliobolus carbonum.
HC toxin, the host-selective toxin of the maize pathogen Cochliobolus carbonum, inhibited maize histone deacetylase (HD) at 2 microM. Chlamydocin, a related cyclic tetrapeptide, also inhibited HD activity. The toxins did not affect histone acetyltransferases. After partial purification of histone deacetylases HD1-A, HD1-B, and HD2 from germinating maize embryos, we demonstrated that the differe...
متن کاملTwo enzymes involved in biosynthesis of the host-selective phytotoxin HC-toxin.
Cochliobolus carbonum race 1 produces a cyclic tetrapeptide HC-toxin, which is necessary for its exceptional virulence on certain varieties of maize. Previous genetic analysis of HC-toxin production by the fungus has indicated that a single genetic locus controls HC-toxin production. Enzymes involved in the biosynthesis of HC-toxin have been sought by following the precedents established for th...
متن کاملMICAL Analyses HC-Gammon
We analyse Pollack and Blair’s HC-Gammon backgammon program using a new technique that performs Monte Carlo simulations to derive a Markov Chain model for Imperfect Comparison ALgorithms, called the MICAL method, which models the behavior of the algorithm using a Markov chain, each of whose states represents a class of players of similar strength. The Markov chain transition matrix is populated...
متن کاملStream Cipher HC - 256 ?
HC-256 is a software-efficient stream cipher. It generates keystream from a 256-bit secret key and a 256-bit initialization vector. The encryption speed of the C implementation of HC-256 is about 1.9 bits per clock cycle (4.2 cycles/byte) on the Intel Pentium 4 processor.
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ژورنال
عنوان ژورنال: Phytochemistry
سال: 2006
ISSN: 0031-9422
DOI: 10.1016/j.phytochem.2006.05.033