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.

1igs

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 10:38, 18 November 2020

INDOLE-3-GLYCEROLPHOSPHATE SYNTHASE FROM SULFOLOBUS SOLFATARICUS AT 2.0 A RESOLUTION

Structural highlights

1igs is a 1 chain structure with sequence from Atcc 35091. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	1a53, 1lbf, 1lbl
Gene:	TRPC (ATCC 35091)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

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

BACKGROUND: Recent efforts to understand the basis of protein stability have focused attention on comparative studies of proteins from hyperthermophilic and mesophilic organisms. Most work to date has been on either oligomeric enzymes or monomers comprising more than one domain. Such studies are hampered by the need to distinguish between stabilizing interactions acting between subunits or domains from those acting within domains. In order to simplify the search for determinants of protein stability we have chosen to study the monomeric enzyme indole-3-glycerol phosphate synthase from the hyperthermophilic archaeon Sulfolobus solfataricus (sIGPS), which grows optimally at 90 degrees C. RESULTS: The 2.0 A crystal structure of sIGPS was determined and compared with the known 2.0 A structure of the IGPS domain of the bifunctional enzyme from the mesophilic bacterium Escherichia coli (eIGPS). sIGPS and eIGPS have only 30% sequence identity, but share high structural similarity. Both are single-domain (beta/alpha)8 barrel proteins, with one (eIGPS) or two (sIGPS) additional helices inserted before the first beta strand. The thermostable sIGPS has many more salt bridges than eIGPS. Several salt bridges crosslink adjacent alpha helices or participate in triple or quadruple salt-bridge clusters. The number of helix capping, dipole stabilizing and hydrophobic interactions is also increased in sIGPS. CONCLUSIONS: The higher stability of sIGPS compared with eIGPS seems to be the result of several improved interactions. These include a larger number of salt bridges, stabilization of alpha helices and strengthening of both polypeptide chain termini and solvent-exposed loops.

2.0 A structure of indole-3-glycerol phosphate synthase from the hyperthermophile Sulfolobus solfataricus: possible determinants of protein stability.,Hennig M, Darimont B, Sterner R, Kirschner K, Jansonius JN Structure. 1995 Dec 15;3(12):1295-306. PMID:8747456^[1]

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

References

↑ Hennig M, Darimont B, Sterner R, Kirschner K, Jansonius JN. 2.0 A structure of indole-3-glycerol phosphate synthase from the hyperthermophile Sulfolobus solfataricus: possible determinants of protein stability. Structure. 1995 Dec 15;3(12):1295-306. PMID:8747456

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

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

@@ Line 1: / Line 1: @@
 ==INDOLE-3-GLYCEROLPHOSPHATE SYNTHASE FROM SULFOLOBUS SOLFATARICUS AT 2.0 A RESOLUTION==
-<StructureSection load='1igs' size='340' side='right' caption='[[1igs]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
+<StructureSection load='1igs' size='340' side='right'caption='[[1igs]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1igs]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_35091 Atcc 35091]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1IGS OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1IGS FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1igs]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_35091 Atcc 35091]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1IGS OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=1IGS FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1a53|1a53]], [[1lbf|1lbf]], [[1lbl|1lbl]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">TRPC ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2287 ATCC 35091])</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=1igs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1igs OCA], [http://pdbe.org/1igs PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1igs RCSB], [http://www.ebi.ac.uk/pdbsum/1igs PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1igs ProSAT]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=1igs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1igs OCA], [http://pdbe.org/1igs PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1igs RCSB], [http://www.ebi.ac.uk/pdbsum/1igs PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1igs ProSAT]</span></td></tr>
 </table>
 == Evolutionary Conservation ==
@@ Line 28: / Line 28: @@
 </div>
 <div class="pdbe-citations 1igs" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Indole-3-glycerol phosphate synthase|Indole-3-glycerol phosphate synthase]]
 == References ==
 <references/>
@@ Line 33: / Line 36: @@
 </StructureSection>
 [[Category: Atcc 35091]]
+[[Category: Large Structures]]
 [[Category: Darimont, B]]
 [[Category: Hennig, M]]

1igs

From Proteopedia

Revision as of 10:38, 18 November 2020

INDOLE-3-GLYCEROLPHOSPHATE SYNTHASE FROM SULFOLOBUS SOLFATARICUS AT 2.0 A RESOLUTION

Structural highlights

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox