5k4p: Difference between revisions

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'''Unreleased structure'''


The entry 5k4p is ON HOLD
==Catalytic Domain of MCR-1 phosphoethanolamine transferase==
 
<StructureSection load='5k4p' size='340' side='right' caption='[[5k4p]], [[Resolution|resolution]] 1.32&Aring;' scene=''>
Authors:  
== Structural highlights ==
 
<table><tr><td colspan='2'>[[5k4p]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli_bl21(de3) Escherichia coli bl21(de3)]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5K4P OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5K4P FirstGlance]. <br>
Description:  
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SOR:D-SORBITOL'>SOR</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
[[Category: Unreleased Structures]]
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=TPO:PHOSPHOTHREONINE'>TPO</scene></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=5k4p FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5k4p OCA], [http://pdbe.org/5k4p PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5k4p RCSB], [http://www.ebi.ac.uk/pdbsum/5k4p PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5k4p ProSAT]</span></td></tr>
</table>
== Function ==
[[http://www.uniprot.org/uniprot/MCR1_ECOLX MCR1_ECOLX]] Probably catalyzes the addition of a phosphoethanolamine moiety to lipid A. Phosphoethanolamine modification of lipid A gives polymyxin resistance (PubMed:26603172).<ref>PMID:26603172</ref>  Confers resistance to polymyxin-type antibiotics; expression of the Mcr-1 protein in E.coli increases colistin and polymyxin B minimal inhibitory concentration (MIC) from 0.5 mg/ml to 2.0 mg/ml. The pHNSHP45 plasmid can transfer efficiently (0.1 to 0.001) to other E.coli strains by conjugation and increases polymxin MIC by 8- to 16-fold; it may not require selective pressure to be maintained in the cell. When transformed into K.pneumoniae or P.aeruginosa it also increases polymxin MIC 8- to 16-fold. In a murine (BALB/c mice) thigh infection study using an mcr1-encoding plasmid isolated from a human patient, the plasmid confers in vivo protection against colistin (PubMed:26603172).<ref>PMID:26603172</ref> 
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Palzkill, T]]
[[Category: Prasad, B V.V]]
[[Category: Sankaran, B]]
[[Category: Stojanoski, V]]
[[Category: Alkaline phosphatase superfamily]]
[[Category: Alpha/beta/alpha fold]]
[[Category: Phosphoethanolamine transferase]]
[[Category: Transferase]]

Revision as of 16:57, 10 September 2016

Catalytic Domain of MCR-1 phosphoethanolamine transferaseCatalytic Domain of MCR-1 phosphoethanolamine transferase

Structural highlights

5k4p is a 1 chain structure with sequence from Escherichia coli bl21(de3). Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:,
NonStd Res:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[MCR1_ECOLX] Probably catalyzes the addition of a phosphoethanolamine moiety to lipid A. Phosphoethanolamine modification of lipid A gives polymyxin resistance (PubMed:26603172).[1] Confers resistance to polymyxin-type antibiotics; expression of the Mcr-1 protein in E.coli increases colistin and polymyxin B minimal inhibitory concentration (MIC) from 0.5 mg/ml to 2.0 mg/ml. The pHNSHP45 plasmid can transfer efficiently (0.1 to 0.001) to other E.coli strains by conjugation and increases polymxin MIC by 8- to 16-fold; it may not require selective pressure to be maintained in the cell. When transformed into K.pneumoniae or P.aeruginosa it also increases polymxin MIC 8- to 16-fold. In a murine (BALB/c mice) thigh infection study using an mcr1-encoding plasmid isolated from a human patient, the plasmid confers in vivo protection against colistin (PubMed:26603172).[2]

References

  1. ↑ Liu YY, Wang Y, Walsh TR, Yi LX, Zhang R, Spencer J, Doi Y, Tian G, Dong B, Huang X, Yu LF, Gu D, Ren H, Chen X, Lv L, He D, Zhou H, Liang Z, Liu JH, Shen J. Emergence of plasmid-mediated colistin resistance mechanism MCR-1 in animals and human beings in China: a microbiological and molecular biological study. Lancet Infect Dis. 2016 Feb;16(2):161-8. doi: 10.1016/S1473-3099(15)00424-7. Epub, 2015 Nov 19. PMID:26603172 doi:http://dx.doi.org/10.1016/S1473-3099(15)00424-7
  2. ↑ Liu YY, Wang Y, Walsh TR, Yi LX, Zhang R, Spencer J, Doi Y, Tian G, Dong B, Huang X, Yu LF, Gu D, Ren H, Chen X, Lv L, He D, Zhou H, Liang Z, Liu JH, Shen J. Emergence of plasmid-mediated colistin resistance mechanism MCR-1 in animals and human beings in China: a microbiological and molecular biological study. Lancet Infect Dis. 2016 Feb;16(2):161-8. doi: 10.1016/S1473-3099(15)00424-7. Epub, 2015 Nov 19. PMID:26603172 doi:http://dx.doi.org/10.1016/S1473-3099(15)00424-7

5k4p, resolution 1.32Å

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