A1 Refereed original research article in a scientific journal

New crystal forms of Escherichia coli and Saccharomyces cerevisiae soluble inorganic pyrophosphatases




AuthorsHEIKINHEIMO P, SALMINEN T, LAHTI R, COOPERMAN B, GOLDMAN A

PublisherMUNKSGAARD INT PUBL LTD

Publication year1995

JournalActa Crystallographica Section D: Biological Crystallography

Journal name in sourceACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY

Journal acronymACTA CRYSTALLOGR D

Volume51

First page 399

Last page401

Number of pages3

ISSN0907-4449

DOIhttps://doi.org/10.1107/S0907444994010784(external)


Abstract
We have obtained new crystal forms of Escherichia coil and Saccharomyces cerevisiae soluble inorganic pyrophosphatase with and without substrate, competitive inhibitor and divalent cation. They diffract to higher resolution than any forms previously reported. The best E. coli crystals are in space group R32 with cell dimensions of 111.4 x 111.4 x 76.6 Angstrom and diffract to 2.0 Angstrom. The best S. cerevisiae crystals were grown from a mixture of PEG 1000 and 4000 in the presence of metal ions. They are in space group P2(1)2(1)2(1), have cell dimensions of 54.2 x 68.5 x 161.7 Angstrom and diffract to 1.8 Angstrom.



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