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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Chen, A. Kroon, P. A. Poulter, C. D. |
| Description | Author Affiliation: Chen A ( Department of Chemistry, University of Utah, Salt Lake City 84112.) |
| Abstract | Isoprenyl diphosphate synthases are ubiquitous enzymes that catalyze the basic chain-elongation reaction in the isoprene biosynthetic pathway. Pairwise sequence comparisons were made for 6 farnesyl diphosphate synthases, 6 geranylgeranyl diphosphate synthases, and a hexaprenyl diphosphate synthase. Five regions with highly conserved residues, two of which contain aspartate-rich DDXX(XX)D motifs found in many prenyltransferases, were identified. A consensus secondary structure for the group, consisting mostly of alpha-helices, was predicted for the multiply aligned sequences from amino acid compositions, computer assignments of local structure, and hydropathy indices. Progressive sequence alignments suggest that the 13 isoprenyl diphosphate synthases evolved from a common ancestor into 3 distinct clusters. The most distant separation is between yeast hexaprenyl diphosphate synthetase and the other enzymes. Except for the chromoplastic geranylgeranyl diphosphate synthase from Capsicum annuum, the remaining farnesyl and geranylgeranyl diphosphate synthases segregate into prokaryotic/archaebacterial and eukaryotic families. |
| ISSN | 09618368 |
| e-ISSN | 1469896X |
| Journal | Protein Science |
| Issue Number | 4 |
| Volume Number | 3 |
| Language | English |
| Publisher | Wiley-Blackwell (on behalf of The Protein Society) |
| Publisher Date | 1994-04-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Alkyl And Aryl Transferases Phylogeny Protein Structure, Secondary Transferases Chemistry Amino Acid Sequence Animals Bacteria Enzymology Binding Sites Conserved Sequence Dimethylallyltranstransferase Genetics Metabolism Farnesyltranstransferase Geranyltranstransferase Molecular Sequence Data Mutagenesis, Site-directed Neurospora Crassa Plants Protein Binding Saccharomyces Cerevisiae Sequence Alignment Comparative Study Research Support, U.s. Gov't, P.h.s. Discipline Biochemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Molecular Biology Biochemistry |
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