1sra

From Proteopedia

(Difference between revisions)

Revision as of 07:52, 14 March 2018

STRUCTURE OF A NOVEL EXTRACELLULAR CA2+-BINDING MODULE IN BM-40(SLASH)SPARC(SLASH)OSTEONECTIN

Structural highlights

1sra is a 1 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Gene:	HUMAN BM-40 (HUMAN)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[SPRC_HUMAN] Appears to regulate cell growth through interactions with the extracellular matrix and cytokines. Binds calcium and copper, several types of collagen, albumin, thrombospondin, PDGF and cell membranes. There are two calcium binding sites; an acidic domain that binds 5 to 8 Ca(2+) with a low affinity and an EF-hand loop that binds a Ca(2+) ion with a high affinity.

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 EF-hand is a highly conserved Ca(2+)-binding motif found in many cytosolic Ca(2+)-modulated proteins. Here we report the crystal structure at 2.0 A resolution of the carboxy-terminal domain of human BM-40 (SPARC, osteonectin), an extracellular matrix protein containing an EF-hand pair. The two EF-hands interact canonically but their detailed structures are unusual. In the first EF-hand a one-residue insertion is accommodated by a cis-peptide bond and by substituting a carboxylate by a peptide carbonyl as a Ca2+ ligand. The second EF-hand is stabilized by a disulphide bond. The EF-hand pair interacts tightly with an amphiphilic amino-terminal helix, reminiscent of target peptide binding by calmodulin. The present structure defines a novel protein module occurring in several other extracellular proteins.

Structure of a novel extracellular Ca(2+)-binding module in BM-40.,Hohenester E, Maurer P, Hohenadl C, Timpl R, Jansonius JN, Engel J Nat Struct Biol. 1996 Jan;3(1):67-73. PMID:8548457^[1]

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

References

↑ Hohenester E, Maurer P, Hohenadl C, Timpl R, Jansonius JN, Engel J. Structure of a novel extracellular Ca(2+)-binding module in BM-40. Nat Struct Biol. 1996 Jan;3(1):67-73. PMID:8548457

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/1sra"

@@ Line 1: / Line 1: @@
 ==STRUCTURE OF A NOVEL EXTRACELLULAR CA2+-BINDING MODULE IN BM-40(SLASH)SPARC(SLASH)OSTEONECTIN==
 <StructureSection load='1sra' size='340' side='right' caption='[[1sra]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
@@ Line 5: / Line 6: @@
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HUMAN BM-40 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=1sra FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sra OCA], [http://pdbe.org/1sra PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1sra RCSB], [http://www.ebi.ac.uk/pdbsum/1sra 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=1sra FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sra OCA], [http://pdbe.org/1sra PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1sra RCSB], [http://www.ebi.ac.uk/pdbsum/1sra PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1sra ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 13: / Line 14: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/sr/1sra_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/sr/1sra_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

1sra

From Proteopedia

Revision as of 07:52, 14 March 2018

STRUCTURE OF A NOVEL EXTRACELLULAR CA2+-BINDING MODULE IN BM-40(SLASH)SPARC(SLASH)OSTEONECTIN

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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