Results 21 to 30 of about 5,408 (205)
RNA minihelices as model substrates for ATP/CTP:tRNA nucleotidyltransferase [PDF]
Twenty-one RNA minihelices, resembling the coaxially stacked acceptor- /T-stems and T-loop found along the top of a tRNA's three-dimensional structure, were synthesized and used as substrates for ATP/CTP:tRNA nucleotidyltransferases from Escherichia coli and Saccharomyces cerevisiae.
Zengji LI, Yue Sun, L. David THURLOW
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Identification of residues involved in nucleotidyltransferase activity of JHP933 from helicobacter pyloriby site-directed mutagenesis [PDF]
Helicobacter pylori is a well-known bacterial pathogen involved in the development of peptic ulcer, gastric adenocarcinoma and other forms of gastric cancer.
Ye Xianren+5 more
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Identification of a novel aminoglycoside O-nucleotidyltransferase AadA33 in Providencia vermicola
A novel chromosome-encoded aminoglycoside O-nucleotidyltransferase AadA33 was identified in Providencia vermicola strain P13. The AadA33 shares the highest amino acid identity of 51.28% with the function characterized AadA31.
Chunlin Feng+20 more
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The Terminal Nucleotidyltransferase of Calf Thymus Nuclei
Abstract An enzyme from calf thymus nuclei which incorporates ribonucleotides or deoxyribonucleotides into terminal positions of deoxyribonucleic acid has been purified and its mechanism of action elucidated. Distinctions between this enzyme and replicative deoxynucleotidyltransferase (DNA polymerase), the terminal deoxynucleotidyltransferase of calf ...
Michael Gottesman, E.S. Canellakis
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Identification and Characterization of Mammalian Mitochondrial tRNA nucleotidyltransferases [PDF]
The CCA-adding enzyme (ATP:tRNA adenylyltransferase or CTP:tRNA cytidylyltransferase (EC )) generates the conserved CCA sequence responsible for the attachment of amino acid at the 3' terminus of tRNA molecules. It was shown that enzymes from various organisms strictly recognize the elbow region of tRNA formed by the conserved D- and T-loops.
Takashi Nagaike+6 more
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FAM46A belongs to the FAM46 subfamily of the nucleotidyltransferase-fold superfamily and is predicted to be a non-canonical poly(A) polymerase. FAM46A has been linked to several human disorders including retinitis pigmentosa, bone abnormality, cancer ...
Hsi-Hsien Lin+6 more
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Aminoglycoside-modifying enzymes are among the most important mechanisms of resistance to aminoglycoside antibiotics, typically conferring high-level resistance by enzymatic drug inactivation.
Xiusheng Sheng+11 more
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A novel plasmid-encoded aminoglycoside 3''-nucleotidyltransferase ANT(3")-IId, was discovered in Acinetobacter lwoffi strain H7 isolated from a chick on an animal farm in Wenzhou, China. The whole-genome of A.
Jialei Liang+31 more
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Purification and Characterization of a Mutant tRNA Nucleotidyltransferase [PDF]
tRNA nucleotidyltransferase has been extensively purified from a mutant strain of Escherichia coli which displays greatly decreased AMP incorporation, but normal CMP incorporation. The defect in AMP incorporation is retained throughout the purification of the mutant protein. The mutant protein behaves identically to the wild‐type protein with regard to
Murray P. Deutscher, Robert G. McGANN
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TYMV RNA As a substrate of the tRNA nucleotidyltransferase [PDF]
It has been recently shown that in the presence of partly purified enzyme preparations from Escherichia coli and ATP. lhe RNA (M.W. = 2 × 106) of Turnip Yellow Mosaic Virus (TYMV) reacts with valine forming an ester bond analogous to that existing in aminoacyltRNA: lhe valine estcrifies the., -terminal adenosine ofTYMV RNA II. 21.
Simon Litvak+2 more
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