Abstract:
:Yeast Ccc2 is a P-type ATPase responsible for transport of copper(I) from the cytosol to the trans-Golgi network. It possesses a soluble cytosolic N-terminal region containing two copper(I)-binding domains. Homologous eukaryotic copper-transporting ATPases have from one to six domains. We have expressed a fragment encompassing residues 1-150 of Ccc2, which corresponds to the two domains, and found that the second domain was substantially less structured than the first. The first domain could bind copper(I) and interact with the partner protein Atx1 at variance with the second. Similar results are found in ATPases from other organisms and may represent a general feature, whose biochemical implications are not yet fully appreciated.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Banci L,Bertini I,Chasapis CT,Rosato A,Tenori Ldoi
10.1016/j.bbrc.2007.10.045subject
Has Abstractpub_date
2007-12-21 00:00:00pages
645-9issue
3eissn
0006-291Xissn
1090-2104pii
S0006-291X(07)02219-Xjournal_volume
364pub_type
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