4h2t

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(Difference between revisions)

Revision as of 12:08, 4 August 2016

Crystal structure of Bradyrhizobium japonicum glycine:[carrier protein] ligase complexed with cognate carrier protein and an analogue of glycyl adenylate

Structural highlights

4h2t is a 4 chain structure with sequence from Bradu. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , ,
Related:	3mf2, 4h2s, 4h2u, 4h2v, 4h2w, 4h2x, 4h2y
Gene:	bll0957 (BRADU), bsr0959 (BRADU)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[AACL1_BRAJA] Catalyzes the ATP-dependent activation of L-glycine and its transfer to the phosphopantetheine prosthetic group covalently attached to the vicinal carrier protein bsr0959 of yet unknown function. May participate in nonribosomal peptide synthesis or related processes. L-alanine is a poor substrate whereas L-serine or D-amino acids are not substrates for ATP-dependent activation. Does not display tRNA aminoacylation activity. [AACP1_BRAJA] Aminoacyl carrier protein. Can be charged with L-glycine via the formation of a thioester bond between the amino acid and the 4'-phosphopantetheinyl prosthetic group, catalyzed by the bll0957 ligase.

Publication Abstract from PubMed

Amino acid:[carrier protein] ligases (aa:CP ligases) are recently discovered enzymes that are highly similar to class II aminoacyl-tRNA synthetases (aaRSs). However, while aaRSs aminoacylate tRNA and supply building blocks for ribosomal translation, aa:CP ligases transfer activated amino acids to the phosphopantetheine group of small carrier proteins. We have solved the crystal structure of an aa:CP ligase complexed with the carrier protein (CP). The CP prosthetic group enters the active site from a different direction than tRNA in class II aaRS complexes through an idiosyncratic tunnel. CP binds to aa:CP ligase in a fundamentally different manner compared to tRNA binding by structurally closely related aaRSs. Based on crystallographic analysis, an enzyme of altered CP specificity was designed, and the mechanism of amino acid transfer to the prosthetic group was proposed. The presented study reveals how a conserved class II aaRS catalytic core can adapt to another function through minor structural alterations.

Adaptation of Aminoacyl-tRNA Synthetase Catalytic Core to Carrier Protein Aminoacylation.,Mocibob M, Ivic N, Luic M, Weygand-Durasevic I Structure. 2013 Mar 26. pii: S0969-2126(13)00058-0. doi:, 10.1016/j.str.2013.02.017. PMID:23541895^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Mocibob M, Ivic N, Luic M, Weygand-Durasevic I. Adaptation of Aminoacyl-tRNA Synthetase Catalytic Core to Carrier Protein Aminoacylation. Structure. 2013 Mar 26. pii: S0969-2126(13)00058-0. doi:, 10.1016/j.str.2013.02.017. PMID:23541895 doi:10.1016/j.str.2013.02.017

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4h2t"

@@ Line 1: / Line 1: @@
 ==Crystal structure of Bradyrhizobium japonicum glycine:[carrier protein] ligase complexed with cognate carrier protein and an analogue of glycyl adenylate==
 <StructureSection load='4h2t' size='340' side='right' caption='[[4h2t]], [[Resolution|resolution]] 2.44&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[4h2t]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Bradyrhizobium_japonicum_usda_110 Bradyrhizobium japonicum usda 110]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4H2T OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4H2T FirstGlance]. <br>
+<table><tr><td colspan='2'>[[4h2t]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Bradu Bradu]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4H2T OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4H2T FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=G5A:5-O-(GLYCYLSULFAMOYL)ADENOSINE'>G5A</scene>, <scene name='pdbligand=PNS:4-PHOSPHOPANTETHEINE'>PNS</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3mf2|3mf2]], [[4h2s|4h2s]], [[4h2u|4h2u]], [[4h2v|4h2v]], [[4h2w|4h2w]], [[4h2x|4h2x]], [[4h2y|4h2y]]</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">bll0957 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=224911 Bradyrhizobium japonicum USDA 110]), bsr0959 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=224911 Bradyrhizobium japonicum USDA 110])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">bll0957 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=224911 BRADU]), bsr0959 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=224911 BRADU])</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=4h2t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4h2t OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4h2t RCSB], [http://www.ebi.ac.uk/pdbsum/4h2t PDBsum]</span></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=4h2t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4h2t OCA], [http://pdbe.org/4h2t PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4h2t RCSB], [http://www.ebi.ac.uk/pdbsum/4h2t PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4h2t ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 18: / Line 19: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4h2t" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Bradyrhizobium japonicum usda 110]]
+[[Category: Bradu]]
 [[Category: Ivic, N]]
 [[Category: Luic, M]]

4h2t

From Proteopedia

Revision as of 12:08, 4 August 2016

Crystal structure of Bradyrhizobium japonicum glycine:[carrier protein] ligase complexed with cognate carrier protein and an analogue of glycyl adenylate

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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