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Rhodospirillum rubrum has a family I pyrophosphatase: purification, cloning, and sequencing.

Archives of microbiology - 1 May 2003

Romero Irma, García-Contreras Rodolfo, Celis Heliodoro

Abstract excerpt

The cytoplasmic pyrophosphatase of the photosynthetic bacterium Rhodospirillum rubrum was purified to electrophoretic homogeneity. The enzyme is a homohexamer of 20-kDa monomers. The gene was cloned and sequenced. Alignment of the deduced 179-amino-acid protein with known bacterial pyrophosphatases revealed conservation of all residues in the active site. Attempts to obtain an insertion mutant of the cytoplasmic...

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PMID: 12658333
DOI: 10.1007/s00203-003-0537-4

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