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2hec

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Revision as of 07:07, 29 November 2017

CONTRIBUTION OF WATER MOLECULES IN THE INTERIOR OF A PROTEIN TO THE CONFORMATIONAL STABILITY

Structural highlights

2hec 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 LYSOZYME WITH ILE 56 REP (HUMAN)
Activity:	Lysozyme, with EC number 3.2.1.17
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[LYSC_HUMAN] Defects in LYZ are a cause of amyloidosis type 8 (AMYL8) [MIM:105200]; also known as systemic non-neuropathic amyloidosis or Ostertag-type amyloidosis. AMYL8 is a hereditary generalized amyloidosis due to deposition of apolipoprotein A1, fibrinogen and lysozyme amyloids. Viscera are particularly affected. There is no involvement of the nervous system. Clinical features include renal amyloidosis resulting in nephrotic syndrome, arterial hypertension, hepatosplenomegaly, cholestasis, petechial skin rash.^[1]

Function

[LYSC_HUMAN] Lysozymes have primarily a bacteriolytic function; those in tissues and body fluids are associated with the monocyte-macrophage system and enhance the activity of immunoagents.

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

Water molecules frequently occur in the interior of globular proteins. To elucidate the contribution of buried water molecules to the conformational stability of a protein, we examined the crystal structures and the thermodynamic parameters of denaturation of six Ile to Ala/Gly mutant human lysozymes, in which a cavity is created at each mutation site by the substitution of a smaller side-chain for a larger one. One or two ordered water molecules were found in the cavities created in some mutants (I106A, I59A and I59G). The cavity volumes for these three mutants were bigger than those that remained empty in the other mutants. The stability of the mutant proteins with the newly introduced water molecules was about 8 kJ/mol higher than that expected from the change in hydrophobic surface area (DeltaDeltaASAHP) exposed upon denaturation. It was concluded that a water molecule in a cavity created in the interior of a protein contributes favorably to the stability.

Contribution of water molecules in the interior of a protein to the conformational stability.,Takano K, Funahashi J, Yamagata Y, Fujii S, Yutani K J Mol Biol. 1997 Nov 21;274(1):132-42. PMID:9398521^[2]

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

References

↑ Pepys MB, Hawkins PN, Booth DR, Vigushin DM, Tennent GA, Soutar AK, Totty N, Nguyen O, Blake CC, Terry CJ, et al.. Human lysozyme gene mutations cause hereditary systemic amyloidosis. Nature. 1993 Apr 8;362(6420):553-7. PMID:8464497 doi:http://dx.doi.org/10.1038/362553a0
↑ Takano K, Funahashi J, Yamagata Y, Fujii S, Yutani K. Contribution of water molecules in the interior of a protein to the conformational stability. J Mol Biol. 1997 Nov 21;274(1):132-42. PMID:9398521 doi:10.1006/jmbi.1997.1365

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2hec"

@@ Line 1: / Line 1: @@
 ==CONTRIBUTION OF WATER MOLECULES IN THE INTERIOR OF A PROTEIN TO THE CONFORMATIONAL STABILITY==
 <StructureSection load='2hec' size='340' side='right' caption='[[2hec]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HUMAN LYSOZYME WITH ILE 56 REP ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Lysozyme Lysozyme], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.17 3.2.1.17] </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=2hec FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hec OCA], [http://pdbe.org/2hec PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2hec RCSB], [http://www.ebi.ac.uk/pdbsum/2hec 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=2hec FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hec OCA], [http://pdbe.org/2hec PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2hec RCSB], [http://www.ebi.ac.uk/pdbsum/2hec PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2hec ProSAT]</span></td></tr>
 </table>
 == Disease ==

2hec

From Proteopedia

Revision as of 07:07, 29 November 2017

CONTRIBUTION OF WATER MOLECULES IN THE INTERIOR OF A PROTEIN TO THE CONFORMATIONAL STABILITY

Structural highlights

Disease

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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