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1aty

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Revision as of 06:54, 24 February 2021

DETERMINATION OF LOCAL PROTEIN STRUCTURE BY SPIN LABEL DIFFERENCE 2D NMR: THE REGION NEIGHBORING ASP61 OF SUBUNIT C OF THE F1FO ATP SYNTHASE

Structural highlights

1aty is a 1 chain structure. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Activity:	H(+)-transporting two-sector ATPase, with EC number 3.6.3.14
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[ATPL_ECOLI] F(1)F(0) ATP synthase produces ATP from ADP in the presence of a proton or sodium gradient. F-type ATPases consist of two structural domains, F(1) containing the extramembraneous catalytic core and F(0) containing the membrane proton channel, linked together by a central stalk and a peripheral stalk. During catalysis, ATP synthesis in the catalytic domain of F(1) is coupled via a rotary mechanism of the central stalk subunits to proton translocation.[HAMAP-Rule:MF_01396] Key component of the F(0) channel; it plays a direct role in translocation across the membrane. A homomeric c-ring of 10 subunits forms the central stalk rotor element with the F(1) delta and epsilon subunits.[HAMAP-Rule:MF_01396]

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

Purified subunit c from the H(+)-transporting F1F0 ATP synthase of Escherichia coli folds as an antiparallel pair of extended helices in a solution of chloroform-methanol-water. A similar hairpin-like folding is predicted for the native protein in the multisubunit transmembrane Fo sector of the ATP synthase. A single Cys variant (A67C) of subunit c was created and modified with a maleimido-PROXYL [[3-(maleimidomethyl)-2,2,5,5-tetramethyl-1-pyrrolidinyl]oxy] spin label. Pairs of 1H 2D correlation and NOE spectra were collected with the nitroxide oxidized (paramagnetic) and reduced (diamagnetic). The pairs of spectra were subtracted, yielding difference spectra containing only cross-peaks from 1H within 15 A of the spin label. These greatly simplified spectra were easily analyzed to provide complete assignments for residues 10-25 and 52-79 of the protein, 150 NOE distance restraints, and 27 hydrogen-bonding restraints. The chemical shifts and NOE patterns observed in the derivatized mutant were virtually identical to those which were resolved in the unmodified wild-type protein, strongly suggesting that the spin label was not perturbing the protein structure. The restaints enabled us to calculate a detailed structure for this region of subunit c. The structure consisted of two gently curved helices, crossing at a slight (30 degrees) angle. The C-terminal helix was disrupted from Val60 to Ala62 near the essential Pro64. Asp61, the residue thought to undergo protonation--deprotonation with each H+ transported across the membrane, was in ver der Waals contact with Ala24. The proximity of these residues had been predicted from mutant analyses, where H+ translocation was retained on moving the Asp from position 61 to 24.

Determination of local protein structure by spin label difference 2D NMR: the region neighboring Asp61 of subunit c of the F1F0 ATP synthase.,Girvin ME, Fillingame RH Biochemistry. 1995 Feb 7;34(5):1635-45. PMID:7849023^[1]

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

References

↑ Girvin ME, Fillingame RH. Determination of local protein structure by spin label difference 2D NMR: the region neighboring Asp61 of subunit c of the F1F0 ATP synthase. Biochemistry. 1995 Feb 7;34(5):1635-45. PMID:7849023

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1aty"

Categories: Large Structures | Fillingame, R H | Girvin, M E | Membrane protein

@@ Line 3: / Line 3: @@
 <StructureSection load='1aty' size='340' side='right'caption='[[1aty]], [[NMR_Ensembles_of_Models | 9 NMR models]]' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1aty]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ATY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ATY FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1aty]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ATY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ATY FirstGlance]. <br>
-</td></tr><tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/H(+)-transporting_two-sector_ATPase H(+)-transporting two-sector ATPase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.3.14 3.6.3.14] </span></td></tr>
+</td></tr><tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/H(+)-transporting_two-sector_ATPase H(+)-transporting two-sector ATPase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.3.14 3.6.3.14] </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=1aty FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1aty OCA], [http://pdbe.org/1aty PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1aty RCSB], [http://www.ebi.ac.uk/pdbsum/1aty PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1aty 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=1aty FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1aty OCA], [https://pdbe.org/1aty PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1aty RCSB], [https://www.ebi.ac.uk/pdbsum/1aty PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1aty ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/ATPL_ECOLI ATPL_ECOLI]] F(1)F(0) ATP synthase produces ATP from ADP in the presence of a proton or sodium gradient. F-type ATPases consist of two structural domains, F(1) containing the extramembraneous catalytic core and F(0) containing the membrane proton channel, linked together by a central stalk and a peripheral stalk. During catalysis, ATP synthesis in the catalytic domain of F(1) is coupled via a rotary mechanism of the central stalk subunits to proton translocation.[HAMAP-Rule:MF_01396]  Key component of the F(0) channel; it plays a direct role in translocation across the membrane. A homomeric c-ring of 10 subunits forms the central stalk rotor element with the F(1) delta and epsilon subunits.[HAMAP-Rule:MF_01396]
+[[https://www.uniprot.org/uniprot/ATPL_ECOLI ATPL_ECOLI]] F(1)F(0) ATP synthase produces ATP from ADP in the presence of a proton or sodium gradient. F-type ATPases consist of two structural domains, F(1) containing the extramembraneous catalytic core and F(0) containing the membrane proton channel, linked together by a central stalk and a peripheral stalk. During catalysis, ATP synthesis in the catalytic domain of F(1) is coupled via a rotary mechanism of the central stalk subunits to proton translocation.[HAMAP-Rule:MF_01396]  Key component of the F(0) channel; it plays a direct role in translocation across the membrane. A homomeric c-ring of 10 subunits forms the central stalk rotor element with the F(1) delta and epsilon subunits.[HAMAP-Rule:MF_01396]
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 28: / Line 28: @@
 </div>
 <div class="pdbe-citations 1aty" style="background-color:#fffaf0;"></div>
-==See Also==
-*[[ATPase 3D structures|ATPase 3D structures]]
 == References ==
 <references/>

1aty

From Proteopedia

Revision as of 06:54, 24 February 2021

DETERMINATION OF LOCAL PROTEIN STRUCTURE BY SPIN LABEL DIFFERENCE 2D NMR: THE REGION NEIGHBORING ASP61 OF SUBUNIT C OF THE F1FO ATP SYNTHASE

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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