2hd4

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==Crystal structure of proteinase K inhibited by a lactoferrin octapeptide Gly-Asp-Glu-Gln-Gly-Glu-Asn-Lys at 2.15 A resolution==
==Crystal structure of proteinase K inhibited by a lactoferrin octapeptide Gly-Asp-Glu-Gln-Gly-Glu-Asn-Lys at 2.15 A resolution==
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<StructureSection load='2hd4' size='340' side='right' caption='[[2hd4]], [[Resolution|resolution]] 2.15&Aring;' scene=''>
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<StructureSection load='2hd4' size='340' side='right'caption='[[2hd4]], [[Resolution|resolution]] 2.15&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[2hd4]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Engyodontium_album Engyodontium album]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HD4 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2HD4 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[2hd4]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Parengyodontium_album Parengyodontium album]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HD4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2HD4 FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACY:ACETIC+ACID'>ACY</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.15&#8491;</td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1p7v|1p7v]]</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACY:ACETIC+ACID'>ACY</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Peptidase_K Peptidase K], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.64 3.4.21.64] </span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2hd4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hd4 OCA], [https://pdbe.org/2hd4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2hd4 RCSB], [https://www.ebi.ac.uk/pdbsum/2hd4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2hd4 ProSAT]</span></td></tr>
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<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=2hd4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hd4 OCA], [http://pdbe.org/2hd4 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2hd4 RCSB], [http://www.ebi.ac.uk/pdbsum/2hd4 PDBsum]</span></td></tr>
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</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/PRTK_TRIAL PRTK_TRIAL]] Hydrolyzes keratin at aromatic and hydrophobic residues. [[http://www.uniprot.org/uniprot/TRFL_HUMAN TRFL_HUMAN]] Transferrins are iron binding transport proteins which can bind two Fe(3+) ions in association with the binding of an anion, usually bicarbonate.<ref>PMID:12535064</ref> <ref>PMID:22320386</ref> Lactotransferrin has antimicrobial activity which depends on the extracellular cation concentration.<ref>PMID:12535064</ref> <ref>PMID:22320386</ref> Lactoferroxins A, B and C have opioid antagonist activity. Lactoferroxin A shows preference for mu-receptors, while lactoferroxin B and C have somewhat higher degrees of preference for kappa-receptors than for mu-receptors.<ref>PMID:12535064</ref> <ref>PMID:22320386</ref> The lactotransferrin transferrin-like domain 1 functions as a serine protease of the peptidase S60 family that cuts arginine rich regions. This function contributes to the antimicrobial activity.<ref>PMID:12535064</ref> <ref>PMID:22320386</ref> Isoform DeltaLf: transcription factor with antiproliferative properties and inducing cell cycle arrest. Binds to DeltaLf response element found in the SKP1, BAX, DCPS, and SELH promoters.<ref>PMID:12535064</ref> <ref>PMID:22320386</ref>
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[https://www.uniprot.org/uniprot/PRTK_PARAQ PRTK_PARAQ] Hydrolyzes keratin at aromatic and hydrophobic residues.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
<jmolCheckbox>
<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hd/2hd4_consurf.spt"</scriptWhenChecked>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hd/2hd4_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
<text>to colour the structure by Evolutionary Conservation</text>
<text>to colour the structure by Evolutionary Conservation</text>
</jmolCheckbox>
</jmolCheckbox>
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==See Also==
==See Also==
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*[[Proteinase|Proteinase]]
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*[[Proteinase 3D structures|Proteinase 3D structures]]
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== References ==
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<references/>
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Engyodontium album]]
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[[Category: Homo sapiens]]
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[[Category: Peptidase K]]
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[[Category: Large Structures]]
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[[Category: Kaur, P]]
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[[Category: Parengyodontium album]]
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[[Category: Kumar, R Prem]]
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[[Category: Kaur P]]
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[[Category: Sharma, S]]
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[[Category: Prem Kumar R]]
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[[Category: Singh, A K]]
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[[Category: Sharma S]]
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[[Category: Singh, N]]
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[[Category: Singh AK]]
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[[Category: Singh, T P]]
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[[Category: Singh N]]
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[[Category: Complex]]
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[[Category: Singh TP]]
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[[Category: Hydrolase]]
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[[Category: Lactoferrin fragment]]
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[[Category: Peptide complex]]
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[[Category: Proteinase k]]
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Current revision

Crystal structure of proteinase K inhibited by a lactoferrin octapeptide Gly-Asp-Glu-Gln-Gly-Glu-Asn-Lys at 2.15 A resolution

PDB ID 2hd4

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