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1jcc

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Crystal Structure of a Novel Alanine-Zipper Trimer at 1.7 A Resolution, V13A,L16A,V20A,L23A,V27A,M30A,V34A mutations

Structural highlights

1jcc is a 3 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 1.7Å
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

LPP_ECOLI Interacts with the peptidoglycan both covalently and noncovalently. This interaction contributes to the maintenance of the structural and functional integrity of the cell envelope.

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

Specific sequence signals at alpha-helix termini can assist protein folding by punctuating and cueing secondary structural elements in the final native conformation. Here we report the crystallization of a 56-residue alanine-containing peptide, denoted Ala-10(56), in the presence of Zn(2+). The 1.7 A crystal structure shows that Ala-10(56) forms a parallel trimeric coiled coil with three zinc ions anchoring distinct capping conformations at the amino-terminal ends of the three helices. In each polypeptide chain, the free alpha-amino nitrogen and carbonyl oxygen of the amino-terminal Ser residue coordinate to a Zn(2+) ion to form a five-membered chelate, and the syn-unidentate interaction of the Asp7 side chain with the Zn(2+) cation leads to the formation of a unique docking arrangement for helix capping. Moreover, the coordination of the zinc ion involves a neighboring trimer molecule in the crystal. Consequently, the crystal contacts are stabilized by carboxylate-Zn(2+) interactions between four Ala-10(56) trimers in the crystal lattice. The observed synergy between the protein-zinc ion recognition and the helix-packing arrangements would contribute to the conformational specificity of the Ala-10(56) trimer.

Zinc-mediated helix capping in a triple-helical protein.,Liu J, Dai J, Lu M Biochemistry. 2003 May 20;42(19):5657-64. PMID:12741822^[1]

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

References

↑ Liu J, Dai J, Lu M. Zinc-mediated helix capping in a triple-helical protein. Biochemistry. 2003 May 20;42(19):5657-64. PMID:12741822 doi:http://dx.doi.org/10.1021/bi026828a

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/1jcc"

Categories: Escherichia coli | Large Structures | Dai J | Liu J | Lu M

@@ Line 1: / Line 1: @@
 ==Crystal Structure of a Novel Alanine-Zipper Trimer at 1.7 A Resolution, V13A,L16A,V20A,L23A,V27A,M30A,V34A mutations==
-<StructureSection load='1jcc' size='340' side='right' caption='[[1jcc]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
+<StructureSection load='1jcc' size='340' side='right'caption='[[1jcc]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1jcc]] is a 3 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=1JCC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1JCC FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1jcc]] is a 3 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=1JCC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1JCC FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></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]] 1.7&#8491;</td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1eq7|1eq7]], [[1jcb|1jcb]], [[1jcd|1jcd]]</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></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=1jcc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jcc OCA], [http://pdbe.org/1jcc PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1jcc RCSB], [http://www.ebi.ac.uk/pdbsum/1jcc PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1jcc 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=1jcc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jcc OCA], [https://pdbe.org/1jcc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1jcc RCSB], [https://www.ebi.ac.uk/pdbsum/1jcc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1jcc ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/LPP_ECOLI LPP_ECOLI]] Interacts with the peptidoglycan both covalently and noncovalently. This interaction contributes to the maintenance of the structural and functional integrity of the cell envelope.
+[https://www.uniprot.org/uniprot/LPP_ECOLI LPP_ECOLI] Interacts with the peptidoglycan both covalently and noncovalently. This interaction contributes to the maintenance of the structural and functional integrity of the cell envelope.
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 33: / Line 33: @@
 __TOC__
 </StructureSection>
-[[Category: Bacillus coli migula 1895]]
+[[Category: Escherichia coli]]
-[[Category: Dai, J]]
+[[Category: Large Structures]]
-[[Category: Liu, J]]
+[[Category: Dai J]]
-[[Category: Lu, M]]
+[[Category: Liu J]]
-[[Category: Alanine-zipper]]
+[[Category: Lu M]]
-[[Category: Coiled coil]]
-[[Category: Helix capping]]
-[[Category: Lipoprotein]]
-[[Category: Membrane protein]]
-[[Category: Protein folding]]

1jcc

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Current revision

Crystal Structure of a Novel Alanine-Zipper Trimer at 1.7 A Resolution, V13A,L16A,V20A,L23A,V27A,M30A,V34A mutations

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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