author_facet Vallee, B L
Auld, D S
Vallee, B L
Auld, D S
author Vallee, B L
Auld, D S
spellingShingle Vallee, B L
Auld, D S
Proceedings of the National Academy of Sciences
Cocatalytic zinc motifs in enzyme catalysis.
Multidisciplinary
author_sort vallee, b l
spelling Vallee, B L Auld, D S 0027-8424 1091-6490 Proceedings of the National Academy of Sciences Multidisciplinary http://dx.doi.org/10.1073/pnas.90.7.2715 <jats:p>Cocatalytic zinc binding sites are characteristic of enzyme molecules which contain two or more zinc and/or other metal atoms. In each site an aspartate, glutamate, or histidine residue simultaneously binds to two zinc atoms or a zinc and a different metal atom. In the resultant amino acid bridge, two of the cocatalytic metal atoms bind to the same amino acid. Consequently the participating metal atoms are in close proximity and function as a catalytic unit, typical of this motif. In these functional units aspartate seems to be preferred over glutamate. Serine, threonine, tryptophan, and lysine residues are encountered as zinc ligands, although they have not so far been identified as ligands in monozinc enzymes or DNA-binding zinc proteins. The resultant coordination spheres and their mechanistic implications raise interesting questions for further study.</jats:p> Cocatalytic zinc motifs in enzyme catalysis. Proceedings of the National Academy of Sciences
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title Cocatalytic zinc motifs in enzyme catalysis.
title_unstemmed Cocatalytic zinc motifs in enzyme catalysis.
title_full Cocatalytic zinc motifs in enzyme catalysis.
title_fullStr Cocatalytic zinc motifs in enzyme catalysis.
title_full_unstemmed Cocatalytic zinc motifs in enzyme catalysis.
title_short Cocatalytic zinc motifs in enzyme catalysis.
title_sort cocatalytic zinc motifs in enzyme catalysis.
topic Multidisciplinary
url http://dx.doi.org/10.1073/pnas.90.7.2715
publishDate 1993
physical 2715-2718
description <jats:p>Cocatalytic zinc binding sites are characteristic of enzyme molecules which contain two or more zinc and/or other metal atoms. In each site an aspartate, glutamate, or histidine residue simultaneously binds to two zinc atoms or a zinc and a different metal atom. In the resultant amino acid bridge, two of the cocatalytic metal atoms bind to the same amino acid. Consequently the participating metal atoms are in close proximity and function as a catalytic unit, typical of this motif. In these functional units aspartate seems to be preferred over glutamate. Serine, threonine, tryptophan, and lysine residues are encountered as zinc ligands, although they have not so far been identified as ligands in monozinc enzymes or DNA-binding zinc proteins. The resultant coordination spheres and their mechanistic implications raise interesting questions for further study.</jats:p>
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author Vallee, B L, Auld, D S
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author_sort vallee, b l
container_issue 7
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container_title Proceedings of the National Academy of Sciences
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description <jats:p>Cocatalytic zinc binding sites are characteristic of enzyme molecules which contain two or more zinc and/or other metal atoms. In each site an aspartate, glutamate, or histidine residue simultaneously binds to two zinc atoms or a zinc and a different metal atom. In the resultant amino acid bridge, two of the cocatalytic metal atoms bind to the same amino acid. Consequently the participating metal atoms are in close proximity and function as a catalytic unit, typical of this motif. In these functional units aspartate seems to be preferred over glutamate. Serine, threonine, tryptophan, and lysine residues are encountered as zinc ligands, although they have not so far been identified as ligands in monozinc enzymes or DNA-binding zinc proteins. The resultant coordination spheres and their mechanistic implications raise interesting questions for further study.</jats:p>
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imprint Proceedings of the National Academy of Sciences, 1993
imprint_str_mv Proceedings of the National Academy of Sciences, 1993
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spelling Vallee, B L Auld, D S 0027-8424 1091-6490 Proceedings of the National Academy of Sciences Multidisciplinary http://dx.doi.org/10.1073/pnas.90.7.2715 <jats:p>Cocatalytic zinc binding sites are characteristic of enzyme molecules which contain two or more zinc and/or other metal atoms. In each site an aspartate, glutamate, or histidine residue simultaneously binds to two zinc atoms or a zinc and a different metal atom. In the resultant amino acid bridge, two of the cocatalytic metal atoms bind to the same amino acid. Consequently the participating metal atoms are in close proximity and function as a catalytic unit, typical of this motif. In these functional units aspartate seems to be preferred over glutamate. Serine, threonine, tryptophan, and lysine residues are encountered as zinc ligands, although they have not so far been identified as ligands in monozinc enzymes or DNA-binding zinc proteins. The resultant coordination spheres and their mechanistic implications raise interesting questions for further study.</jats:p> Cocatalytic zinc motifs in enzyme catalysis. Proceedings of the National Academy of Sciences
spellingShingle Vallee, B L, Auld, D S, Proceedings of the National Academy of Sciences, Cocatalytic zinc motifs in enzyme catalysis., Multidisciplinary
title Cocatalytic zinc motifs in enzyme catalysis.
title_full Cocatalytic zinc motifs in enzyme catalysis.
title_fullStr Cocatalytic zinc motifs in enzyme catalysis.
title_full_unstemmed Cocatalytic zinc motifs in enzyme catalysis.
title_short Cocatalytic zinc motifs in enzyme catalysis.
title_sort cocatalytic zinc motifs in enzyme catalysis.
title_unstemmed Cocatalytic zinc motifs in enzyme catalysis.
topic Multidisciplinary
url http://dx.doi.org/10.1073/pnas.90.7.2715