PELTER et al.: " The structures of amino-acid conjugates of bonellin derived from the marine echuroid Bonellia Viridis "PELTER,A., A. ABELA-MEDICI,J. A.BALLANTINEV, . FERRITO,S. FORD, V. JACCARINI& A. F. PSAILA, 1978a. The structure of amino-acid conjugates of bonellin derived ...
Cyanophycin is a natural biopolymer produced by a wide range of bacteria, consisting of a chain of poly-l-Asp residues with l-Arg residues attached to the β-carboxylate sidechains by isopeptide bonds. Cyanophycin is synthesized from ATP, aspartic acid a
Here, the role of primordial amino acid binding structures is seen as a major determinant of which amino acids were embedded in the genetic code. This theory is of special interest in the light of our study, as amino acid binding sites of aaRSs might have composed such an ancient ...
MM 13902, a β-lactam antibiotic isolated from Streptomyces olivaceus , has been identified as ( 5R6R )- 3- [( E )- 2- acetamidoethenylthio]- 6- [( S )- 1- hydroxysulphonyloxyethyl]- 7- oxo- 1- azabicyclo [3.2.0] hept- 2- ene- 2- carboxylic acid ( 2 ) by chemical and ...
the design of structural experiments, the amino acid sequence of the Aspergillusβ-N-acetylhexosaminidase determined in our laboratory [16] was used to generate a molecular model of the catalytic subunit based on sequence homology to three solved β-N-acetylhexosaminidase structures [10, 12, 14]. ...
The Hydrophobic Temperature Dependence of Amino Acids Directly Calculated from Protein Structures These propensities show that the hydrophobicity becomes weaker at lower temperatures, in line with current theory. Alternatively, one can conclude that the temperature dependence of the hydrophobic effect has a...
The determinants of site-to-site variability in the rate of amino acid replacement in alpha/beta-barrel enzyme structures are investigated. Of 125 available alpha/beta-barrel structures, only 25 meet a variety of phylogenetic and statistical criteria necessary to ensure sufficient data for reliable ...
Cell Structures and Organelles Chemical Reagents Bioconjugation Physiological Probes Enzymes Answer Amino acids are composed of a carbon atom, a hydrogen atom, a carboxyl group along an amino group, and a variable group called the “R” group. The variable "R" group is what distinguishes the diff...
Structures of mouse DUOX1–DUOXA1 provide mechanistic insights into enzyme activation and regulation Article 14 September 2020 Data availability Cryo-EM maps and the atomic coordinate of the NOX2 complex in the resting state have been deposited in the Electron Microscopy Data Bank (EMDB) and PD...
n, Superimposed cryo-EM structures of the 4:1 GajA-GajB complex (brown) and 4:4 GajA-GajB complex (gray). o, SDS-PAGE showing the fractions collected at each step of the purification of GajB-Q155A/Y347A. p, The eluate of GajB-Q155A/Y347A was subjected to size-exclusion ...