Nucleotide recognition by CopA, a Cu+-transporting P-type ATPase
نویسندگان
چکیده
منابع مشابه
Nucleotide recognition by CopA, a Cu+-transporting P-type ATPase.
Heavy metal pumps constitute a large subgroup in P-type ion-transporting ATPases. One of the outstanding features is that the nucleotide binding N-domain lacks residues critical for ATP binding in other well-studied P-type ATPases. Instead, they possess an HP-motif and a Gly-rich sequence in the N-domain, and their mutations impair ATP binding. Here, we describe 1.85 A resolution crystal struct...
متن کاملCopA: An Escherichia coli Cu(I)-translocating P-type ATPase.
The copA gene product, a putative copper-translocating P-type ATPase, has been shown to be involved in copper resistance in Escherichia coli. The copA gene was disrupted by insertion of a kanamycin gene through homologous recombination. The mutant strain was more sensitive to copper salts but not to salts of other metals, suggesting a role in copper homeostasis. The copper-sensitive phenotype c...
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We have produced and characterized two new copper-transporting ATPases, CtrA2 and CtrA3 from Aquifex aeolicus, that belong to the family of heavy metal ion-transporting P(IB)-type ATPases. CtrA2 has a CPC metal-binding sequence in TM6 and a CxxC metal-binding N-terminal domain, while CtrA3 has a CPH metal-binding motif in TM6 and a histidine-rich N-terminal metal-binding domain. We have cloned ...
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ژورنال
عنوان ژورنال: The EMBO Journal
سال: 2009
ISSN: 0261-4189,1460-2075
DOI: 10.1038/emboj.2009.143