1vh3
From Proteopedia
(New page: 200px<br /><applet load="1vh3" size="450" color="white" frame="true" align="right" spinBox="true" caption="1vh3, resolution 2.70Å" /> '''Crystal structure of...) |
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| - | [[Image:1vh3.gif|left|200px]]<br /><applet load="1vh3" size=" | + | [[Image:1vh3.gif|left|200px]]<br /><applet load="1vh3" size="350" color="white" frame="true" align="right" spinBox="true" |
caption="1vh3, resolution 2.70Å" /> | caption="1vh3, resolution 2.70Å" /> | ||
'''Crystal structure of CMP-KDO synthetase'''<br /> | '''Crystal structure of CMP-KDO synthetase'''<br /> | ||
==Overview== | ==Overview== | ||
| - | The targets of the Structural GenomiX (SGX) bacterial genomics project | + | The targets of the Structural GenomiX (SGX) bacterial genomics project were proteins conserved in multiple prokaryotic organisms with no obvious sequence homolog in the Protein Data Bank of known structures. The outcome of this work was 80 structures, covering 60 unique sequences and 49 different genes. Experimental phase determination from proteins incorporating Se-Met was carried out for 45 structures with most of the remainder solved by molecular replacement using members of the experimentally phased set as search models. An automated tool was developed to deposit these structures in the Protein Data Bank, along with the associated X-ray diffraction data (including refined experimental phases) and experimentally confirmed sequences. BLAST comparisons of the SGX structures with structures that had appeared in the Protein Data Bank over the intervening 3.5 years since the SGX target list had been compiled identified homologs for 49 of the 60 unique sequences represented by the SGX structures. This result indicates that, for bacterial structures that are relatively easy to express, purify, and crystallize, the structural coverage of gene space is proceeding rapidly. More distant sequence-structure relationships between the SGX and PDB structures were investigated using PDB-BLAST and Combinatorial Extension (CE). Only one structure, SufD, has a truly unique topology compared to all folds in the PDB. |
==About this Structure== | ==About this Structure== | ||
| - | 1VH3 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Haemophilus_influenzae Haemophilus influenzae] with CMK as [http://en.wikipedia.org/wiki/ligand ligand]. Active as [http://en.wikipedia.org/wiki/3-deoxy-manno-octulosonate_cytidylyltransferase 3-deoxy-manno-octulosonate cytidylyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.38 2.7.7.38] Full crystallographic information is available from [http:// | + | 1VH3 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Haemophilus_influenzae Haemophilus influenzae] with <scene name='pdbligand=CMK:'>CMK</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Active as [http://en.wikipedia.org/wiki/3-deoxy-manno-octulosonate_cytidylyltransferase 3-deoxy-manno-octulosonate cytidylyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.38 2.7.7.38] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VH3 OCA]. |
==Reference== | ==Reference== | ||
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[[Category: structural genomics]] | [[Category: structural genomics]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 15:35:13 2008'' |
Revision as of 13:35, 21 February 2008
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Crystal structure of CMP-KDO synthetase
Overview
The targets of the Structural GenomiX (SGX) bacterial genomics project were proteins conserved in multiple prokaryotic organisms with no obvious sequence homolog in the Protein Data Bank of known structures. The outcome of this work was 80 structures, covering 60 unique sequences and 49 different genes. Experimental phase determination from proteins incorporating Se-Met was carried out for 45 structures with most of the remainder solved by molecular replacement using members of the experimentally phased set as search models. An automated tool was developed to deposit these structures in the Protein Data Bank, along with the associated X-ray diffraction data (including refined experimental phases) and experimentally confirmed sequences. BLAST comparisons of the SGX structures with structures that had appeared in the Protein Data Bank over the intervening 3.5 years since the SGX target list had been compiled identified homologs for 49 of the 60 unique sequences represented by the SGX structures. This result indicates that, for bacterial structures that are relatively easy to express, purify, and crystallize, the structural coverage of gene space is proceeding rapidly. More distant sequence-structure relationships between the SGX and PDB structures were investigated using PDB-BLAST and Combinatorial Extension (CE). Only one structure, SufD, has a truly unique topology compared to all folds in the PDB.
About this Structure
1VH3 is a Single protein structure of sequence from Haemophilus influenzae with as ligand. Active as 3-deoxy-manno-octulosonate cytidylyltransferase, with EC number 2.7.7.38 Full crystallographic information is available from OCA.
Reference
Structural analysis of a set of proteins resulting from a bacterial genomics project., Badger J, Sauder JM, Adams JM, Antonysamy S, Bain K, Bergseid MG, Buchanan SG, Buchanan MD, Batiyenko Y, Christopher JA, Emtage S, Eroshkina A, Feil I, Furlong EB, Gajiwala KS, Gao X, He D, Hendle J, Huber A, Hoda K, Kearins P, Kissinger C, Laubert B, Lewis HA, Lin J, Loomis K, Lorimer D, Louie G, Maletic M, Marsh CD, Miller I, Molinari J, Muller-Dieckmann HJ, Newman JM, Noland BW, Pagarigan B, Park F, Peat TS, Post KW, Radojicic S, Ramos A, Romero R, Rutter ME, Sanderson WE, Schwinn KD, Tresser J, Winhoven J, Wright TA, Wu L, Xu J, Harris TJ, Proteins. 2005 Sep 1;60(4):787-96. PMID:16021622
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