This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

1usg

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Current revision

L-leucine-binding protein, apo form

Structural highlights

1usg is a 1 chain structure with sequence from Escherichia coli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 1.53Å
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

LIVK_ECOLI This protein is a component of the leucine-specific transport system, which is one of the two periplasmic binding protein-dependent transport systems of the high-affinity transport of the branched-chain amino acids in E.coli.

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 PubMed

The periplasmic leucine-binding protein is the primary receptor for the leucine transport system in Escherichia coli. We report here the structure of an open ligand-free form solved by molecular replacement and refined at 1.5-A resolution. In addition, two closed ligand-bound structures of the same protein are presented, a phenylalanine-bound form at 1.8 A and a leucine-bound structure at a nominal resolution of 2.4 A. These structures show the basis of this protein's ligand specificity, as well as illustrating the conformational changes that are associated with ligand binding. Comparison with earlier structures provides further information about solution conformations, as well as the different specificity of the closely related leucine/isoleucine/valine-binding protein.

X-ray structures of the leucine-binding protein illustrate conformational changes and the basis of ligand specificity.,Magnusson U, Salopek-Sondi B, Luck LA, Mowbray SL J Biol Chem. 2004 Mar 5;279(10):8747-52. Epub 2003 Dec 12. PMID:14672931^[1]

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

References

↑ Magnusson U, Salopek-Sondi B, Luck LA, Mowbray SL. X-ray structures of the leucine-binding protein illustrate conformational changes and the basis of ligand specificity. J Biol Chem. 2004 Mar 5;279(10):8747-52. Epub 2003 Dec 12. PMID:14672931 doi:http://dx.doi.org/10.1074/jbc.M311890200

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1usg"

@@ Line 3: / Line 3: @@
 <StructureSection load='1usg' size='340' side='right'caption='[[1usg]], [[Resolution|resolution]] 1.53&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1usg]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1USG OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1USG FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1usg]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1USG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1USG FirstGlance]. <br>
-</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1usi|1usi]], [[1usk|1usk]], [[2lbp|2lbp]]</td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.53&#8491;</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=1usg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1usg OCA], [http://pdbe.org/1usg PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1usg RCSB], [http://www.ebi.ac.uk/pdbsum/1usg PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1usg ProSAT]</span></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=1usg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1usg OCA], [https://pdbe.org/1usg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1usg RCSB], [https://www.ebi.ac.uk/pdbsum/1usg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1usg ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/LIVK_ECOLI LIVK_ECOLI]] This protein is a component of the leucine-specific transport system, which is one of the two periplasmic binding protein-dependent transport systems of the high-affinity transport of the branched-chain amino acids in E.coli.
+[https://www.uniprot.org/uniprot/LIVK_ECOLI LIVK_ECOLI] This protein is a component of the leucine-specific transport system, which is one of the two periplasmic binding protein-dependent transport systems of the high-affinity transport of the branched-chain amino acids in E.coli.
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 32: / Line 32: @@
 __TOC__
 </StructureSection>
-[[Category: Bacillus coli migula 1895]]
+[[Category: Escherichia coli]]
 [[Category: Large Structures]]
-[[Category: Luck, L A]]
+[[Category: Luck LA]]
-[[Category: Magnusson, U]]
+[[Category: Magnusson U]]
-[[Category: Mowbray, S L]]
+[[Category: Mowbray SL]]
-[[Category: Salopek-Sondi, B]]
+[[Category: Salopek-Sondi B]]
-[[Category: Abc transport system]]
-[[Category: Leucine-binding protein]]
-[[Category: Protein structure]]
-[[Category: Transport protein]]

1usg

From Proteopedia

Current revision

L-leucine-binding protein, apo form

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox