PMID:153904
| Citation |
Kanazawa, H, Saito, S and Futai, M (1978) Coupling factor ATPase from Escherichia coli. An uncA mutant (uncA401) with defective alpha subunit. J. Biochem. 84:1513-7 |
|---|---|
| Abstract |
Inactive coupling factor ATPase (F1) was prepared from an uncoupled mutant (uncA401) of Escherichia coli. Reconstitution of ATPase activity was observed when alpha subunit from wild-type F1 was added to the dissociated inactive F1 and the mixture was dialyzed against buffer containing ATP and Mg2+. ATPase was also reconstituted when the mixture of alpha subunit (wild type) and crude extract from the mutant was dialyzed against the same buffer. These results indicate that the mutant is defective in alpha subunit, suggesting that the uncA401 locus carries the structural gene for alpha subunit, and that this polypeptide plays an essential role in ATPase activity in F1 molecule. |
| Links | |
| Keywords |
Adenosine Triphosphatases/genetics; Adenosine Triphosphatases/metabolism; Escherichia coli/enzymology; Escherichia coli/genetics; Macromolecular Substances; Mutation |
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