1f8s

From Proteopedia

(Difference between revisions)

Revision as of 23:25, 9 September 2015

CRYSTAL STRUCTURE OF L-AMINO ACID OXIDASE FROM CALLOSELASMA RHODOSTOMA, COMPLEXED WITH THREE MOLECULES OF O-AMINOBENZOATE.

Structural highlights

1f8s is a 8 chain structure with sequence from Calloselasma rhodostoma. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, ,
Related:	1f8r
Activity:	L-amino-acid oxidase, with EC number 1.4.3.2
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[OXLA_CALRH] Catalyzes an oxidative deamination of predominantly hydrophobic and aromatic L-amino acids, thus producing hydrogen peroxide that may contribute to the diverse toxic effects of this enzyme. Exhibits diverse biological activities, such as hemorrhage, hemolysis, edema, apoptosis of vascular endothelial cells or tumor cell lines, antibacterial and antiparasitic activities, as well as regulation of platelet aggregation. Its effect on platelets is controversial, since it either induces aggregation or inhibits agonist-induced aggregation. These different effects are probably due to different experimental conditions (By similarity).

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 structure of L-amino acid oxidase (LAAO) from Calloselasma rhodostoma has been determined to 2.0 A resolution in the presence of two ligands: citrate and o-aminobenzoate (AB). The protomer consists of three domains: an FAD-binding domain, a substrate-binding domain and a helical domain. The interface between the substrate-binding and helical domains forms a 25 A long funnel, which provides access to the active site. Three AB molecules are visible within the funnel of the LAAO-AB complex; their orientations suggest the trajectory of the substrate to the active site. The innermost AB molecule makes hydrogen bond contacts with the active site residues, Arg90 and Gly464, and the aromatic portion of the ligand is situated in a hydrophobic pocket. These contacts are proposed to mimic those of the natural substrate. Comparison of LAAO with the structure of mammalian D-amino acid oxidase reveals significant differences in their modes of substrate entry. Furthermore, a mirror-symmetrical relationship between the two substrate-binding sites is observed which facilitates enantiomeric selectivity while preserving a common arrangement of the atoms involved in catalysis.

The structure of L-amino acid oxidase reveals the substrate trajectory into an enantiomerically conserved active site.,Pawelek PD, Cheah J, Coulombe R, Macheroux P, Ghisla S, Vrielink A EMBO J. 2000 Aug 15;19(16):4204-15. PMID:10944103^[1]

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

References

↑ Pawelek PD, Cheah J, Coulombe R, Macheroux P, Ghisla S, Vrielink A. The structure of L-amino acid oxidase reveals the substrate trajectory into an enantiomerically conserved active site. EMBO J. 2000 Aug 15;19(16):4204-15. PMID:10944103 doi:10.1093/emboj/19.16.4204

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/1f8s"

@@ Line 6: / Line 6: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1f8r|1f8r]]</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/L-amino-acid_oxidase L-amino-acid oxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.4.3.2 1.4.3.2] </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=1f8s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1f8s OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1f8s RCSB], [http://www.ebi.ac.uk/pdbsum/1f8s 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=1f8s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1f8s OCA], [http://pdbe.org/1f8s PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1f8s RCSB], [http://www.ebi.ac.uk/pdbsum/1f8s PDBsum]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/OXLA_AGKRH OXLA_AGKRH]] Catalyzes an oxidative deamination of predominantly hydrophobic and aromatic L-amino acids, thus producing hydrogen peroxide that may contribute to the diverse toxic effects of this enzyme. Exhibits diverse biological activities, such as hemorrhage, hemolysis, edema, apoptosis of vascular endothelial cells or tumor cell lines, antibacterial and antiparasitic activities, as well as regulation of platelet aggregation. Its effect on platelets is controversial, since it either induces aggregation or inhibits agonist-induced aggregation. These different effects are probably due to different experimental conditions (By similarity).
+[[http://www.uniprot.org/uniprot/OXLA_CALRH OXLA_CALRH]] Catalyzes an oxidative deamination of predominantly hydrophobic and aromatic L-amino acids, thus producing hydrogen peroxide that may contribute to the diverse toxic effects of this enzyme. Exhibits diverse biological activities, such as hemorrhage, hemolysis, edema, apoptosis of vascular endothelial cells or tumor cell lines, antibacterial and antiparasitic activities, as well as regulation of platelet aggregation. Its effect on platelets is controversial, since it either induces aggregation or inhibits agonist-induced aggregation. These different effects are probably due to different experimental conditions (By similarity).
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 28: / Line 28: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 1f8s" style="background-color:#fffaf0;"></div>
 ==See Also==

1f8s

From Proteopedia

Revision as of 23:25, 9 September 2015

CRYSTAL STRUCTURE OF L-AMINO ACID OXIDASE FROM CALLOSELASMA RHODOSTOMA, COMPLEXED WITH THREE MOLECULES OF O-AMINOBENZOATE.

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

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