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.

2pcy

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 20:51, 20 October 2021

THE CRYSTAL STRUCTURE OF POPLAR APOPLASTOCYANIN AT 1.8-ANGSTROMS RESOLUTION. THE GEOMETRY OF THE COPPER-BINDING SITE IS CREATED BY THE POLYPEPTIDE

Structural highlights

2pcy is a 1 chain structure with sequence from Lombardy poplar. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[PLAS1_POPNI] Participates in electron transfer between P700 and the cytochrome b6-f complex in photosystem I.

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 three-dimensional structure of apoplastocyanin from poplar leaves (Populus nigra var. italica) has been determined by x-ray diffraction at 1.8-A resolution. The structure closely resembles that of the holoprotein. In particular, the positions of the copper-binding residues in the apo- and holoproteins differ by only 0.1-0.3 A. This indicates that the irregular geometry of the "type 1" copper site is imposed upon the metal atom by the polypeptide moiety. A 180 degrees rotation of one solvent-exposed histidine imidazole ring about C beta-C gamma appears to facilitate access to the copper site. The close structural similarity between apo-, Cu-(II)-, and Cu(I)-plastocyanin was initially demonstrated by means of electron density difference maps. Two series of restrained least squares refinement calculations for apoplastocyanin, originating from different sets of atomic positional parameters, were carried out in parallel. Both refinements converged to the same model which, when fully refined, had a residual R = 0.16. Forty-two water molecules were located during the refinement.

The crystal structure of poplar apoplastocyanin at 1.8-A resolution. The geometry of the copper-binding site is created by the polypeptide.,Garrett TP, Clingeleffer DJ, Guss JM, Rogers SJ, Freeman HC J Biol Chem. 1984 Mar 10;259(5):2822-5. PMID:6698995^[1]

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

References

↑ Garrett TP, Clingeleffer DJ, Guss JM, Rogers SJ, Freeman HC. The crystal structure of poplar apoplastocyanin at 1.8-A resolution. The geometry of the copper-binding site is created by the polypeptide. J Biol Chem. 1984 Mar 10;259(5):2822-5. PMID:6698995

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/2pcy"

Categories: Large Structures | Lombardy poplar | Freeman, H C | Garrett, T P.J | Guss, J M

@@ Line 3: / Line 3: @@
 <StructureSection load='2pcy' size='340' side='right'caption='[[2pcy]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2pcy]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Lombardy_poplar Lombardy poplar]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2PCY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2PCY FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2pcy]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Lombardy_poplar Lombardy poplar]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2PCY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2PCY FirstGlance]. <br>
-</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=2pcy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pcy OCA], [http://pdbe.org/2pcy PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2pcy RCSB], [http://www.ebi.ac.uk/pdbsum/2pcy PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2pcy ProSAT]</span></td></tr>
+</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=2pcy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pcy OCA], [https://pdbe.org/2pcy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2pcy RCSB], [https://www.ebi.ac.uk/pdbsum/2pcy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2pcy ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/PLAS1_POPNI PLAS1_POPNI]] Participates in electron transfer between P700 and the cytochrome b6-f complex in photosystem I.
+[[https://www.uniprot.org/uniprot/PLAS1_POPNI PLAS1_POPNI]] Participates in electron transfer between P700 and the cytochrome b6-f complex in photosystem I.
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]

2pcy

From Proteopedia

Revision as of 20:51, 20 October 2021

THE CRYSTAL STRUCTURE OF POPLAR APOPLASTOCYANIN AT 1.8-ANGSTROMS RESOLUTION. THE GEOMETRY OF THE COPPER-BINDING SITE IS CREATED BY THE POLYPEPTIDE

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox