1vrc

From Proteopedia

(Difference between revisions)

Revision as of 00:15, 25 December 2014

Complex of enzyme IIAmannose and the histidine-containing phosphocarrier protein HPr from escherichia coli nmr, restrained regularized mean structure

Structural highlights

1vrc is a 4 chain structure with sequence from Escherichia coli. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
NonStd Res:
Gene:	manX, gptB, ptsL (Escherichia coli), ptsH, hpr (Escherichia coli)
Activity:	Protein-N(pi)-phosphohistidine--sugar phosphotransferase, with EC number 2.7.1.69
Resources:	FirstGlance, OCA, RCSB, PDBsum

Function

[PTNAB_ECOLI] The phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS), a major carbohydrate active -transport system, catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. This system is involved in mannose transport. [PTHP_ECOLI] General (non sugar-specific) component of the phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS). This major carbohydrate active-transport system catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. The phosphoryl group from phosphoenolpyruvate (PEP) is transferred to the phosphoryl carrier protein HPr by enzyme I. Phospho-HPr then transfers it to the permease (enzymes II/III).

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 solution structure of the 48-kDa IIA(Man)-HPr complex of the mannose branch of the Escherichia coli phosphotransferase system has been solved by NMR using conjoined rigid body/torsion angle-simulated annealing on the basis of intermolecular nuclear Overhauser enhancement data and residual dipolar couplings. IIA(Man) is dimeric and has two symmetrically related binding sites per dimer for HPr. A convex surface on HPr, formed primarily by helices 1 and 2, interacts with a deep groove at the interface of the two subunits of IIA(Man). The interaction surface on IIA(Man) is predominantly helical, comprising helix 3 from the subunit that bears the active site His-10 and helices 1, 4, and 5 from the other subunit. The total buried accessible surface area at the protein-protein interface is 1450 A(2). The binding sites on the two proteins are complementary in terms of shape and distribution of hydrophobic, hydrophilic, and charged residues. The active site histidines, His-10 of IIA(Man) and His-15 (italics indicate HPr residues) of HPr, are in close proximity. An associative transition state involving a pentacoordinate phosphoryl group with trigonal bipyramidal geometry bonded to the N-epsilon2 atom of His-10 and the N-delta1 atom of His-15 can be readily formed with negligible displacement in the backbone coordinates of the residues immediately adjacent to the active site histidines. Comparing the structures of complexes of HPr with three other structurally unrelated phosphotransferase system proteins, enzymes I, IIA(glucose), and IIA(mannitol), reveals a number of common features that provide a molecular basis for understanding how HPr specifically recognizes a wide range of diverse proteins.

Solution NMR structure of the 48-kDa IIAMannose-HPr complex of the Escherichia coli mannose phosphotransferase system.,Williams DC Jr, Cai M, Suh JY, Peterkofsky A, Clore GM J Biol Chem. 2005 May 27;280(21):20775-84. Epub 2005 Mar 23. PMID:15788390^[1]

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

References

↑ Williams DC Jr, Cai M, Suh JY, Peterkofsky A, Clore GM. Solution NMR structure of the 48-kDa IIAMannose-HPr complex of the Escherichia coli mannose phosphotransferase system. J Biol Chem. 2005 May 27;280(21):20775-84. Epub 2005 Mar 23. PMID:15788390 doi:10.1074/jbc.M501986200

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/1vrc"

@@ Line 3: / Line 3: @@
 == Structural highlights ==
 <table><tr><td colspan='2'>[[1vrc]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VRC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1VRC FirstGlance]. <br>
-</td></tr><tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=PO3:PHOSPHITE+ION'>PO3</scene></td></tr>
+</td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=PO3:PHOSPHITE+ION'>PO3</scene></td></tr>
-<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">manX, gptB, ptsL ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli]), ptsH, hpr ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">manX, gptB, ptsL ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli]), ptsH, hpr ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli])</td></tr>
-<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Protein-N(pi)-phosphohistidine--sugar_phosphotransferase Protein-N(pi)-phosphohistidine--sugar phosphotransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.69 2.7.1.69] </span></td></tr>
+<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Protein-N(pi)-phosphohistidine--sugar_phosphotransferase Protein-N(pi)-phosphohistidine--sugar phosphotransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.69 2.7.1.69] </span></td></tr>
-<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1vrc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1vrc OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1vrc RCSB], [http://www.ebi.ac.uk/pdbsum/1vrc 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=1vrc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1vrc OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1vrc RCSB], [http://www.ebi.ac.uk/pdbsum/1vrc PDBsum]</span></td></tr>
-<table>
+</table>
+== Function ==
+[[http://www.uniprot.org/uniprot/PTNAB_ECOLI PTNAB_ECOLI]] The phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS), a major carbohydrate active -transport system, catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. This system is involved in mannose transport. [[http://www.uniprot.org/uniprot/PTHP_ECOLI PTHP_ECOLI]] General (non sugar-specific) component of the phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS). This major carbohydrate active-transport system catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. The phosphoryl group from phosphoenolpyruvate (PEP) is transferred to the phosphoryl carrier protein HPr by enzyme I. Phospho-HPr then transfers it to the permease (enzymes II/III).
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 34: / Line 36: @@
 </StructureSection>
 [[Category: Escherichia coli]]
-[[Category: Clore, G M.]]
+[[Category: Clore, G M]]
-[[Category: Williams, D C.]]
+[[Category: Williams, D C]]
 [[Category: Kinase]]
 [[Category: Phosphotransferase]]
 [[Category: Sugar transport]]
 [[Category: Transferase]]

1vrc

From Proteopedia

Revision as of 00:15, 25 December 2014

Complex of enzyme IIAmannose and the histidine-containing phosphocarrier protein HPr from escherichia coli nmr, restrained regularized mean structure

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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