This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

2v8n

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 12:41, 23 March 2022

Wild-type Structure of Lactose Permease

Structural highlights

2v8n is a 2 chain structure with sequence from "bacillus_coli"_migula_1895 "bacillus coli" migula 1895. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	1pv6, 1pv7, 2cfp, 1m2u, 2cfq
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[LACY_ECOLI] Responsible for transport of beta-galactosides into the cell, with the concomitant import of a proton (symport system).

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

Here we describe an x-ray structure of wild-type lactose permease (LacY) from Escherichia coli determined by manipulating phospholipid content during crystallization. The structure exhibits the same global fold as the previous x-ray structures of a mutant that binds sugar but cannot catalyze translocation across the membrane. LacY is organized into two six-helix bundles with twofold pseudosymmetry separated by a large interior hydrophilic cavity open only to the cytoplasmic side and containing the side chains important for sugar and H(+) binding. To initiate transport, binding of sugar and/or an H(+) electrochemical gradient increases the probability of opening on the periplasmic side. Because the inward-facing conformation represents the lowest free-energy state, the rate-limiting step for transport may be the conformational change leading to the outward-facing conformation.

Structural determination of wild-type lactose permease.,Guan L, Mirza O, Verner G, Iwata S, Kaback HR Proc Natl Acad Sci U S A. 2007 Sep 25;104(39):15294-8. Epub 2007 Sep 19. PMID:17881559^[1]

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

References

↑ Guan L, Mirza O, Verner G, Iwata S, Kaback HR. Structural determination of wild-type lactose permease. Proc Natl Acad Sci U S A. 2007 Sep 25;104(39):15294-8. Epub 2007 Sep 19. PMID:17881559

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/2v8n"

@@ Line 3: / Line 3: @@
 <StructureSection load='2v8n' size='340' side='right'caption='[[2v8n]], [[Resolution|resolution]] 3.60&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2v8n]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2V8N OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=2V8N FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2v8n]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2V8N OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2V8N FirstGlance]. <br>
-</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1pv6|1pv6]], [[1pv7|1pv7]], [[2cfp|2cfp]], [[1m2u|1m2u]], [[2cfq|2cfq]]</td></tr>
+</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1pv6|1pv6]], [[1pv7|1pv7]], [[2cfp|2cfp]], [[1m2u|1m2u]], [[2cfq|2cfq]]</div></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=2v8n FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2v8n OCA], [http://pdbe.org/2v8n PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2v8n RCSB], [http://www.ebi.ac.uk/pdbsum/2v8n PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2v8n 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=2v8n FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2v8n OCA], [https://pdbe.org/2v8n PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2v8n RCSB], [https://www.ebi.ac.uk/pdbsum/2v8n PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2v8n ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/LACY_ECOLI LACY_ECOLI]] Responsible for transport of beta-galactosides into the cell, with the concomitant import of a proton (symport system).
+[[https://www.uniprot.org/uniprot/LACY_ECOLI LACY_ECOLI]] Responsible for transport of beta-galactosides into the cell, with the concomitant import of a proton (symport system).
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 31: / Line 31: @@
 ==See Also==
 *[[Lactose Permease|Lactose Permease]]
-*[[Major Facilitators|Major Facilitators]]
 == References ==
 <references/>

2v8n

From Proteopedia

Revision as of 12:41, 23 March 2022

Wild-type Structure of Lactose Permease

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox