1f4j: Difference between revisions

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== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1f4j]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1F4J OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1F4J FirstGlance]. <br>
<table><tr><td colspan='2'>[[1f4j]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1F4J OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1F4J FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.4&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1qqw|1qqw]]</div></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene></td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Catalase Catalase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.11.1.6 1.11.1.6] </span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1f4j FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1f4j OCA], [https://pdbe.org/1f4j PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1f4j RCSB], [https://www.ebi.ac.uk/pdbsum/1f4j PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1f4j ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1f4j FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1f4j OCA], [https://pdbe.org/1f4j PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1f4j RCSB], [https://www.ebi.ac.uk/pdbsum/1f4j PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1f4j ProSAT]</span></td></tr>
</table>
</table>
== Disease ==
== Disease ==
[[https://www.uniprot.org/uniprot/CATA_HUMAN CATA_HUMAN]] Defects in CAT are the cause of acatalasemia (ACATLAS) [MIM:[https://omim.org/entry/614097 614097]]. A metabolic disorder characterized by absence of catalase activity in red cells and is often associated with ulcerating oral lesions.<ref>PMID:2308162</ref>
[https://www.uniprot.org/uniprot/CATA_HUMAN CATA_HUMAN] Defects in CAT are the cause of acatalasemia (ACATLAS) [MIM:[https://omim.org/entry/614097 614097]. A metabolic disorder characterized by absence of catalase activity in red cells and is often associated with ulcerating oral lesions.<ref>PMID:2308162</ref>  
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/CATA_HUMAN CATA_HUMAN]] Occurs in almost all aerobically respiring organisms and serves to protect cells from the toxic effects of hydrogen peroxide. Promotes growth of cells including T-cells, B-cells, myeloid leukemia cells, melanoma cells, mastocytoma cells and normal and transformed fibroblast cells.<ref>PMID:7882369</ref>
[https://www.uniprot.org/uniprot/CATA_HUMAN CATA_HUMAN] Occurs in almost all aerobically respiring organisms and serves to protect cells from the toxic effects of hydrogen peroxide. Promotes growth of cells including T-cells, B-cells, myeloid leukemia cells, melanoma cells, mastocytoma cells and normal and transformed fibroblast cells.<ref>PMID:7882369</ref>  
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1f4j ConSurf].
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1f4j ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The structure of catalase from human erythrocytes (HEC) was determined in tetragonal crystals of space group I4(1) by molecular-replacement methods, using the orthorhombic crystal structure as a search model. It was then refined in a unit cell of dimensions a = b = 203.6 and c = 144.6 A, yielding R and R(free) of 0.196 and 0.244, respectively, for all data at 2.4 A resolution. A major difference of the HEC structure in the tetragonal crystal compared with the orthorhombic structure was the omission of a 20-residue N-terminal segment corresponding to the first exon of the human catalase gene. The overall structures were otherwise identical in both crystal forms. The NADPH-binding sites were empty in all four subunits and bound water molecules were observed at the active sites. The structure of the C-terminal segment, which corresponds to the last exon, remained undetermined. The tetragonal crystals showed a pseudo-4(1)22 symmetry in molecular packing. Two similar types of lattice contact interfaces between the HEC tetramers were observed; they were related by the pseudo-dyad axes.
Structure of tetragonal crystals of human erythrocyte catalase.,Safo MK, Musayev FN, Wu SH, Abraham DJ, Ko TP Acta Crystallogr D Biol Crystallogr. 2001 Jan;57(Pt 1):1-7. PMID:11134921<ref>PMID:11134921</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1f4j" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Catalase]]
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Abraham, D J]]
[[Category: Abraham DJ]]
[[Category: Ko, T P]]
[[Category: Ko TP]]
[[Category: Musayev, F N]]
[[Category: Musayev FN]]
[[Category: Safo, M K]]
[[Category: Safo MK]]
[[Category: Wu, S H]]
[[Category: Wu SH]]
[[Category: Heme protein]]
[[Category: No bound nadph]]
[[Category: Oxidoreductase]]

Revision as of 07:10, 7 February 2024

STRUCTURE OF TETRAGONAL CRYSTALS OF HUMAN ERYTHROCYTE CATALASE

1f4j, resolution 2.40Å

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