4rtd: Difference between revisions

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== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[4rtd]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4RTD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4RTD FirstGlance]. <br>
<table><tr><td colspan='2'>[[4rtd]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4RTD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4RTD FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</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]] 3.65&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></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=4rtd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4rtd OCA], [https://pdbe.org/4rtd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4rtd RCSB], [https://www.ebi.ac.uk/pdbsum/4rtd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4rtd 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=4rtd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4rtd OCA], [https://pdbe.org/4rtd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4rtd RCSB], [https://www.ebi.ac.uk/pdbsum/4rtd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4rtd ProSAT]</span></td></tr>
</table>
</table>
== Function ==
[https://www.uniprot.org/uniprot/A2MG_ECOLI A2MG_ECOLI] Protects the bacterial cell from host peptidases (PubMed:18697741, PubMed:26143919, PubMed:26100869). Acts by a 'trapping' mechanism. Cleavage of the bait-region domain by host peptidases leads to a global conformational change, which results in entrapment of the host peptidase and activation of the thioester bond that covalently binds the attacking host peptidase (PubMed:26143919, PubMed:26100869). Trapped peptidases are still active except against very large substrates (PubMed:26100869). May protect the entire periplam, including the lipoproteins anchored to the periplasmic side of the outer membrane, against intruding endopeptidases (PubMed:26100869).<ref>PMID:18697741</ref> <ref>PMID:26100869</ref> <ref>PMID:26143919</ref>
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== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==

Latest revision as of 03:32, 21 November 2024

Escherichia coli alpha-2-macroglobulin activated by porcine elastase

4rtd, resolution 3.65Å

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