Sequence and crystallization of Escherichia coli dethiobiotin synthetase, the penultimate enzyme of biotin biosynthesis.
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Alexeev D, Bury SM, Boys CW, Turner MA, Sawyer L, Ramsey AJ, Baxter HC, Baxter RL
Sequence and crystallization of Escherichia coli dethiobiotin synthetase, the penultimate enzyme of biotin biosynthesis.
J Mol Biol. 1994 Jan 14;235(2):774-6.
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- 8289297 [ View in PubMed]
- Abstract
The enzyme dethiobiotin synthetase (EC 6.3.3.3) has been cloned and over-expressed in Escherichia coli in such a way that milligram quantities are available. The purified enzyme has been subjected to a number of physical and chemical studies, sequenced and most notably it has been crystallized in a form that is suitable for X-ray structure determination. The cell dimensions are a = 72.8 A, b = 49.2 A, c = 61.4 A, beta = 106.2 degrees. The systematic absences are consistent with the monoclinic space group C2 with one polypeptide chain in the asymmetric unit.