2hid: Difference between revisions
No edit summary |
No edit summary |
||
| Line 2: | Line 2: | ||
<StructureSection load='2hid' size='340' side='right' caption='[[2hid]], [[NMR_Ensembles_of_Models | 25 NMR models]]' scene=''> | <StructureSection load='2hid' size='340' side='right' caption='[[2hid]], [[NMR_Ensembles_of_Models | 25 NMR models]]' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2hid]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/ | <table><tr><td colspan='2'>[[2hid]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_globigii"_migula_1900 "bacillus globigii" migula 1900]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1hid 1hid]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HID OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2HID FirstGlance]. <br> | ||
</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2hid FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hid OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2hid RCSB], [http://www.ebi.ac.uk/pdbsum/2hid PDBsum]</span></td></tr> | </td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2hid FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hid OCA], [http://pdbe.org/2hid PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2hid RCSB], [http://www.ebi.ac.uk/pdbsum/2hid PDBsum]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
| Line 25: | Line 25: | ||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
<div class="pdbe-citations 2hid" style="background-color:#fffaf0;"></div> | |||
==See Also== | ==See Also== | ||
| Line 32: | Line 33: | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Bacillus | [[Category: Bacillus globigii migula 1900]] | ||
[[Category: Jones, B E]] | [[Category: Jones, B E]] | ||
[[Category: Klevit, R E]] | [[Category: Klevit, R E]] | ||
Revision as of 04:51, 12 September 2015
REFINED NMR STRUCTURE OF PHOSPHOCARRIER HISTIDINE CONTAINING PROTEIN FROM BACILLUS SUBTILISREFINED NMR STRUCTURE OF PHOSPHOCARRIER HISTIDINE CONTAINING PROTEIN FROM BACILLUS SUBTILIS
Structural highlights
Function[PTHP_BACSU] General (non sugar-specific) component of the phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS). This major carbohydrate active-transport system catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. The phosphoryl group from phosphoenolpyruvate (PEP) is transferred to the phosphoryl carrier protein HPr by enzyme I. Phospho-HPr then transfers it to the permease (enzymes II/III).[1] [2] P-Ser-HPr interacts with the catabolite control protein A (CcpA), forming a complex that binds to DNA at the catabolite response elements cre, operator sites preceding a large number of catabolite-regulated genes. Thus, P-Ser-HPr is a corepressor in carbon catabolite repression (CCR), a mechanism that allows bacteria to coordinate and optimize the utilization of available carbon sources. P-Ser-HPr also plays a role in inducer exclusion, in which it probably interacts with several non-PTS permeases and inhibits their transport activity.[3] [4] Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedThe histidine-containing protein (HPr) of bacterial phosphoenolpyruvate:sugar phosphotransferase system (PTS) serves a central role in a series of phosphotransfer reactions used for the translocation of sugars across cell membranes. These studies report the high-definition solution structures of both the unphosphorylated and histidine phosphorylated (P-His) forms of HPr from Bacillus subtilis. Consistent with previous NMR studies, local conformational adjustments occur upon phosphorylation of His 15, which positions the phosphate group to serve as a hydrogen bond acceptor for the amide protons of Ala 16 and Arg 17 and to interact favorably with the alpha-helix macrodipole. However, the positively charged side chain of the highly conserved Arg 17 does not appear to interact directly with phospho-His 15, suggesting that Arg 17 plays a role in the recognition of other PTS enzymes or in phosphotransfer reactions directly. Unlike the results reported for Escherichia coli P-His HPr (Van Nuland NA, Boelens R, Scheek RM, Robillard GT, 1995, J Mol Biol 246:180-193), our data indicate that phosphorylation of His 15 is not accompanied by adoption of unfavorable backbone conformations for active site residues in B. subtilis P-Ser HPr. Phosphorylation on histidine is accompanied by localized structural changes in the phosphocarrier protein, HPr from Bacillus subtilis.,Jones BE, Rajagopal P, Klevit RE Protein Sci. 1997 Oct;6(10):2107-19. PMID:9336834[5] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
|
| ||||||||||||||