1klx
From Proteopedia
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- | [[Image:1klx.gif|left|200px]] | ||
- | < | + | ==Helicobacter pylori cysteine rich protein B (hcpB)== |
- | + | <StructureSection load='1klx' size='340' side='right'caption='[[1klx]], [[Resolution|resolution]] 1.95Å' scene=''> | |
- | + | == Structural highlights == | |
- | + | <table><tr><td colspan='2'>[[1klx]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Helicobacter_pylori Helicobacter pylori]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KLX OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1KLX FirstGlance]. <br> | |
- | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.95Å</td></tr> | |
- | -- | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1klx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1klx OCA], [https://pdbe.org/1klx PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1klx RCSB], [https://www.ebi.ac.uk/pdbsum/1klx PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1klx ProSAT]</span></td></tr> |
- | + | </table> | |
- | + | == Function == | |
- | + | [https://www.uniprot.org/uniprot/HCPB_HELPY HCPB_HELPY] Hydrolyzes 6-aminopenicillinic acid and 7-aminocephalosporanic acid (ACA) derivatives. | |
- | + | == Evolutionary Conservation == | |
- | + | [[Image:Consurf_key_small.gif|200px|right]] | |
- | == | + | Check<jmol> |
+ | <jmolCheckbox> | ||
+ | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/kl/1klx_consurf.spt"</scriptWhenChecked> | ||
+ | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked> | ||
+ | <text>to colour the structure by Evolutionary Conservation</text> | ||
+ | </jmolCheckbox> | ||
+ | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1klx ConSurf]. | ||
+ | <div style="clear:both"></div> | ||
+ | <div style="background-color:#fffaf0;"> | ||
+ | == Publication Abstract from PubMed == | ||
Colonization of the gastric mucosa with the spiral-shaped Gram-negative proteobacterium Helicobacter pylori is probably the most common chronic infection in humans. The genomes of H. pylori strains J99 and 26695 have been completely sequenced. Functional and three-dimensional structural information is available for less than one third of all open reading frames. We investigated the function and three-dimensional structure of a member from a family of cysteine-rich hypothetical proteins that are unique to H. pylori and Campylobacter jejuni. The structure of H. pylori cysteine-rich protein (Hcp) B possesses a modular architecture consisting of four alpha/alpha-motifs that are cross-linked by disulfide bridges. The Hcp repeat is similar to the tetratricopeptide repeat, which is frequently found in protein/protein interactions. In contrast to the tetratricopeptide repeat, the Hcp repeat is 36 amino acids long. HcpB is capable of binding and hydrolyzing 6-amino penicillinic acid and 7-amino cephalosporanic acid derivatives. The HcpB fold is distinct from the fold of any known penicillin-binding protein, indicating that the Hcp proteins comprise a new family of penicillin-binding proteins. The putative penicillin binding site is located in an amphipathic groove on the concave side of the molecule. | Colonization of the gastric mucosa with the spiral-shaped Gram-negative proteobacterium Helicobacter pylori is probably the most common chronic infection in humans. The genomes of H. pylori strains J99 and 26695 have been completely sequenced. Functional and three-dimensional structural information is available for less than one third of all open reading frames. We investigated the function and three-dimensional structure of a member from a family of cysteine-rich hypothetical proteins that are unique to H. pylori and Campylobacter jejuni. The structure of H. pylori cysteine-rich protein (Hcp) B possesses a modular architecture consisting of four alpha/alpha-motifs that are cross-linked by disulfide bridges. The Hcp repeat is similar to the tetratricopeptide repeat, which is frequently found in protein/protein interactions. In contrast to the tetratricopeptide repeat, the Hcp repeat is 36 amino acids long. HcpB is capable of binding and hydrolyzing 6-amino penicillinic acid and 7-amino cephalosporanic acid derivatives. The HcpB fold is distinct from the fold of any known penicillin-binding protein, indicating that the Hcp proteins comprise a new family of penicillin-binding proteins. The putative penicillin binding site is located in an amphipathic groove on the concave side of the molecule. | ||
- | + | The crystal structure of Helicobacter pylori cysteine-rich protein B reveals a novel fold for a penicillin-binding protein.,Luthy L, Grutter MG, Mittl PR J Biol Chem. 2002 Mar 22;277(12):10187-93. Epub 2002 Jan 2. PMID:11777911<ref>PMID:11777911</ref> | |
- | + | ||
- | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
- | + | </div> | |
+ | <div class="pdbe-citations 1klx" style="background-color:#fffaf0;"></div> | ||
+ | == References == | ||
+ | <references/> | ||
+ | __TOC__ | ||
+ | </StructureSection> | ||
[[Category: Helicobacter pylori]] | [[Category: Helicobacter pylori]] | ||
- | [[Category: | + | [[Category: Large Structures]] |
- | [[Category: Gruetter | + | [[Category: Gruetter MG]] |
- | [[Category: Luethy | + | [[Category: Luethy L]] |
- | [[Category: Mittl | + | [[Category: Mittl PRE]] |
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Current revision
Helicobacter pylori cysteine rich protein B (hcpB)
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