1ilv: Difference between revisions
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
[[Image:1ilv.gif|left|200px]] | [[Image:1ilv.gif|left|200px]] | ||
'''Crystal Structure Analysis of the TM107''' | {{Structure | ||
|PDB= 1ilv |SIZE=350|CAPTION= <scene name='initialview01'>1ilv</scene>, resolution 2.00Å | |||
|SITE= | |||
|LIGAND= | |||
|ACTIVITY= | |||
|GENE= | |||
}} | |||
'''Crystal Structure Analysis of the TM107''' | |||
==Overview== | ==Overview== | ||
| Line 7: | Line 16: | ||
==About this Structure== | ==About this Structure== | ||
1ILV is a [ | 1ILV is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Thermotoga_maritima Thermotoga maritima]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ILV OCA]. | ||
==Reference== | ==Reference== | ||
Structure of Thermotoga maritima stationary phase survival protein SurE: a novel acid phosphatase., Zhang RG, Skarina T, Katz JE, Beasley S, Khachatryan A, Vyas S, Arrowsmith CH, Clarke S, Edwards A, Joachimiak A, Savchenko A, Structure. 2001 Nov;9(11):1095-106. PMID:[http:// | Structure of Thermotoga maritima stationary phase survival protein SurE: a novel acid phosphatase., Zhang RG, Skarina T, Katz JE, Beasley S, Khachatryan A, Vyas S, Arrowsmith CH, Clarke S, Edwards A, Joachimiak A, Savchenko A, Structure. 2001 Nov;9(11):1095-106. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11709173 11709173] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
[[Category: Thermotoga maritima]] | [[Category: Thermotoga maritima]] | ||
| Line 21: | Line 30: | ||
[[Category: Zhang, R.]] | [[Category: Zhang, R.]] | ||
[[Category: mcsg]] | [[Category: mcsg]] | ||
[[Category: midwest center for structural | [[Category: midwest center for structural genomic]] | ||
[[Category: new fold]] | [[Category: new fold]] | ||
[[Category: protein structure initiative]] | [[Category: protein structure initiative]] | ||
[[Category: psi]] | [[Category: psi]] | ||
[[Category: structural | [[Category: structural genomic]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 11:51:58 2008'' | ||
Revision as of 09:51, 20 March 2008
| |||||||||||||
| 1ilv, resolution 2.00Å | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Coordinates: | save as pdb, mmCIF, xml | ||||||||||||
Crystal Structure Analysis of the TM107
Overview
BACKGROUND: The rpoS, nlpD, pcm, and surE genes are among many whose expression is induced during the stationary phase of bacterial growth. rpoS codes for the stationary-phase RNA polymerase sigma subunit, and nlpD codes for a lipoprotein. The pcm gene product repairs damaged proteins by converting the atypical isoaspartyl residues back to L-aspartyls. The physiological and biochemical functions of surE are unknown, but its importance in stress is supported by the duplication of the surE gene in E. coli subjected to high-temperature growth. The pcm and surE genes are highly conserved in bacteria, archaea, and plants. RESULTS: The structure of SurE from Thermotoga maritima was determined at 2.0 A. The SurE monomer is composed of two domains; a conserved N-terminal domain, a Rossman fold, and a C-terminal oligomerization domain, a new fold. Monomers form a dimer that assembles into a tetramer. Biochemical analysis suggests that SurE is an acid phosphatase, with an optimum pH of 5.5-6.2. The active site was identified in the N-terminal domain through analysis of conserved residues. Structure-based site-directed point mutations abolished phosphatase activity. T. maritima SurE intra- and intersubunit salt bridges were identified that may explain the SurE thermostability. CONCLUSIONS: The structure of SurE provided information about the protein's fold, oligomeric state, and active site. The protein possessed magnesium-dependent acid phosphatase activity, but the physiologically relevant substrate(s) remains to be identified. The importance of three of the assigned active site residues in catalysis was confirmed by site-directed mutagenesis.
About this Structure
1ILV is a Single protein structure of sequence from Thermotoga maritima. Full crystallographic information is available from OCA.
Reference
Structure of Thermotoga maritima stationary phase survival protein SurE: a novel acid phosphatase., Zhang RG, Skarina T, Katz JE, Beasley S, Khachatryan A, Vyas S, Arrowsmith CH, Clarke S, Edwards A, Joachimiak A, Savchenko A, Structure. 2001 Nov;9(11):1095-106. PMID:11709173
Page seeded by OCA on Thu Mar 20 11:51:58 2008
