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1gto

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Revision as of 22:00, 24 December 2014

HIGH RESOLUTION STRUCTURE OF A HYPERSTABLE HELICAL BUNDLE PROTEIN MUTANT

Structural highlights

1gto 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.
Resources:	FirstGlance, OCA, RCSB, PDBsum

Function

[ROP_ECOLX] Regulates plasmid DNA replication by modulating the initiation of transcription of the primer RNA precursor. Processing of the precursor of the primer, RNAII, is inhibited by hydrogen bonding of RNAII to its complementary sequence in RNAI. ROP increases the affinity of RNAI for RNAII and thus decreases the rate of replication initiation events.

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

A surface turn position in a four-helix bundle protein, Rop, was selected to investigate the role of turns in protein structure and stability. Although all twenty amino acids can be substituted at this position to generate a correctly folded protein, they produce an unusually large range of thermodynamic stabilities. Moreover, the majority of substitutions give rise to proteins with enhanced thermal stability compared to that of the wild type. By introducing the same twenty mutations at this position, but in a simplified context, we were able to deconvolute intrinsic preferences from local environmental effects. The intrinsic preferences can be explained on the basis of preferred backbone dihedral angles, but local environmental context can significantly modify these effects.

Amino-acid substitutions in a surface turn modulate protein stability.,Predki PF, Agrawal V, Brunger AT, Regan L Nat Struct Biol. 1996 Jan;3(1):54-8. PMID:8548455^[1]

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

References

↑ Predki PF, Agrawal V, Brunger AT, Regan L. Amino-acid substitutions in a surface turn modulate protein stability. Nat Struct Biol. 1996 Jan;3(1):54-8. PMID:8548455

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

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

@@ Line 5: / Line 5: @@
 </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=1gto FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1gto OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1gto RCSB], [http://www.ebi.ac.uk/pdbsum/1gto PDBsum]</span></td></tr>
 </table>
+== Function ==
+[[http://www.uniprot.org/uniprot/ROP_ECOLX ROP_ECOLX]] Regulates plasmid DNA replication by modulating the initiation of transcription of the primer RNA precursor. Processing of the precursor of the primer, RNAII, is inhibited by hydrogen bonding of RNAII to its complementary sequence in RNAI. ROP increases the affinity of RNAI for RNAII and thus decreases the rate of replication initiation events.
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]

1gto

From Proteopedia

Revision as of 22:00, 24 December 2014

HIGH RESOLUTION STRUCTURE OF A HYPERSTABLE HELICAL BUNDLE PROTEIN MUTANT

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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