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Literature DB >> 11844782

New class of IMP cyclohydrolases in Methanococcus jannaschii.

Marion Graupner¹, Huimin Xu, Robert H White.

Abstract

The enzyme responsible for observed IMP cyclohydrolase activity in Methanococcus jannaschii was purified and sequenced: its genetic locus was found to correspond to gene MJ0626. The MJ0626 gene was cloned, and its protein product was expressed in Escherichia coli and shown to catalyze the cyclization of 5-formylamidoimidazole-4-carboxamide ribonucleotide to IMP. The enzyme has no sequence similarity to known enzymes, and its catalytic properties appear distinct from any characterized IMP cyclohydrolase. The purO gene for the enzyme is currently found only in the domain Archaea.

Entities: Chemical Gene Species

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Year: 2002 PMID： 11844782 PMCID： PMC134845 DOI： 10.1128/JB.184.5.1471-1473.2002

Source DB: PubMed Journal: J Bacteriol ISSN： 0021-9193 Impact factor: 3.490

14 in total

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9 in total

1. A novel function for the N-terminal nucleophile hydrolase fold demonstrated by the structure of an archaeal inosine monophosphate cyclohydrolase.

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Authors: Phillip J McCown; Agnieszka Ruszkowska; Charlotte N Kunkler; Kurtis Breger; Jacob P Hulewicz; Matthew C Wang; Noah A Springer; Jessica A Brown
Journal: Wiley Interdiscip Rev RNA Date: 2020-04-16 Impact factor: 9.349

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Authors: Dennifier Costa Brandão Cruz; Lenon Lima Santana; Alexandre Siqueira Guedes; Jorge Teodoro de Souza; Phellippe Arthur Santos Marbach
Journal: Genome Biol Evol Date: 2019-04-01 Impact factor: 3.416

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9 in total