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PDBsum entry 1e29
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Electron transport
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PDB id
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1e29
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Contents |
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* Residue conservation analysis
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J Biol Inorg Chem
6:324-332
(2001)
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PubMed id:
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Crystal structure of low-potential cytochrome c549 from Synechocystis sp. PCC 6803 at 1.21 A resolution.
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C.Frazão,
F.J.Enguita,
R.Coelho,
G.M.Sheldrick,
J.A.Navarro,
M.Hervás,
M.A.De la Rosa,
M.A.Carrondo.
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ABSTRACT
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The crystal structure of low-potential cytochrome c549, an extrinsic component
of the photosystem II (PS II) from Synechocystis sp. PCC 6803, was obtained
directly from single-wavelength 1.21 A resolution diffraction data. This is the
first monodomain bis-histidinyl monoheme cytochrome c to be structurally
characterized. The extended N-terminal region of c549 builds up a two-strand
antiparallel beta-sheet in a hairpin motif, which extends through two molecules
owing to crystal packing. Both peptide termini are involved in crystal contacts,
which may explain their protrusion out of the globular fold. The C-terminus is
preceded by a 9 A-long hydrophobic finger extending from a positively charged
base and could be involved in PSII interactions, as well as a protruding
negative patch built by a set of conserved acidic residues among c549 sequences.
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Literature references that cite this PDB file's key reference
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PubMed id
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Reference
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I.Enami,
A.Okumura,
R.Nagao,
T.Suzuki,
M.Iwai,
and
J.R.Shen
(2008).
Structures and functions of the extrinsic proteins of photosystem II from different species.
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Photosynth Res,
98,
349-363.
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F.J.Enguita,
E.Pohl,
D.L.Turner,
H.Santos,
and
M.A.Carrondo
(2006).
Structural evidence for a proton transfer pathway coupled with haem reduction of cytochrome c" from Methylophilus methylotrophus.
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J Biol Inorg Chem,
11,
189-196.
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PDB codes:
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Y.Kashino,
N.Inoue-Kashino,
J.L.Roose,
and
H.B.Pakrasi
(2006).
Absence of the PsbQ protein results in destabilization of the PsbV protein and decreased oxygen evolution activity in cyanobacterial photosystem II.
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J Biol Chem,
281,
20834-20841.
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R.Caliandro,
B.Carrozzini,
G.L.Cascarano,
L.De Caro,
C.Giacovazzo,
and
D.Siliqi
(2005).
Phasing at resolution higher than the experimental resolution.
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Acta Crystallogr D Biol Crystallogr,
61,
556-565.
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K.Ifuku,
T.Nakatsu,
H.Kato,
and
F.Sato
(2004).
Crystal structure of the PsbP protein of photosystem II from Nicotiana tabacum.
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EMBO Rep,
5,
362-367.
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PDB code:
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K.Ifuku,
T.Nakatsu,
H.Kato,
and
F.Sato
(2003).
Crystallization and preliminary crystallographic studies on the extrinsic 23 kDa protein in the oxygen-evolving complex of photosystem II.
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Acta Crystallogr D Biol Crystallogr,
59,
1462-1463.
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M.Balsera,
J.B.Arellano,
F.Pazos,
D.Devos,
A.Valencia,
and
J.De Las Rivas
(2003).
The single tryptophan of the PsbQ protein of photosystem II is at the end of a 4-alpha-helical bundle domain.
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Eur J Biochem,
270,
3916-3927.
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J.Nield,
M.Balsera,
J.De Las Rivas,
and
J.Barber
(2002).
Three-dimensional electron cryo-microscopy study of the extrinsic domains of the oxygen-evolving complex of spinach: assignment of the PsbO protein.
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J Biol Chem,
277,
15006-15012.
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The most recent references are shown first.
Citation data come partly from CiteXplore and partly
from an automated harvesting procedure. Note that this is likely to be
only a partial list as not all journals are covered by
either method. However, we are continually building up the citation data
so more and more references will be included with time.
Where a reference describes a PDB structure, the PDB
codes are
shown on the right.
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Links
