1QOV: Photosynthetic reaction center

Photosynthetic reaction center mutant with ala M260 replaced with trp (chain M, A260W). Determined by X-ray diffraction at 2.1 Å resolution. Released 13 Dec 1999.

Method
X-ray diffraction
Resolution
2.1 Å
Organism
RHODOBACTER SPHAEROIDES
Chains
3
Atoms
7,312
Mol. weight
102.36 kDa
Ligands
CDL, SPN, FE2, BPH
Released
13 Dec 1999

Explore 1QOV in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

1QOV contains 53 α-helices and 34 β-strands across 3 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain H: 11 helices, 16 β-strands

ElementResiduesLengthSheet
α-helix12-3423
β-strand4311
β-strand4911
α-helix501
α-helix57-615
β-strand62-6542
β-strand72-7542
β-strand87-8933
β-strand98-10033
α-helix104-1074
α-helix110-1123
β-strand12314
β-strand12914
β-strand131-13335
α-helix134-1363
β-strand141-14446
β-strand152-15435
β-strand160-170115
β-strand175-18285
β-strand188-19255
α-helix193-1953
β-strand197-19825
β-strand203-20425
α-helix210-2123
α-helix217-2193
α-helix227-24317
α-helix245-2473
Chain L: 20 helices, 8 β-strands
ElementResiduesLengthSheet
β-strand211
α-helix7-93
β-strand25-2627
β-strand29-3027
α-helix32-5625
β-strand6618
α-helix67-704
α-helix71-733
α-helix80-823
α-helix84-11128
α-helix116-12914
α-helix130-1345
α-helix135-1395
α-helix142-1443
α-helix146-1472
β-strand14818
α-helix150-16314
α-helix167-1693
α-helix171-19828
α-helix204-2074
α-helix209-22012
β-strand22219
α-helix226-24924
β-strand251110
β-strand255110
α-helix259-2624
α-helix264-2674
α-helix270-2734
Chain M: 22 helices, 10 β-strands
ElementResiduesLengthSheet
β-strand11-1336
α-helix16-172
α-helix26-283
β-strand29111
β-strand35112
α-helix37-404
β-strand46112
β-strand4719
β-strand51111
α-helix53-7725
α-helix82-876
β-strand94113
α-helix95-984
α-helix99-1013
α-helix109-1113
α-helix113-13826
α-helix145-15814
α-helix159-1635
α-helix164-1685
α-helix171-1733
α-helix175-1762
β-strand177113
α-helix179-19214
α-helix196-1983
α-helix200-22526
α-helix227-2293
α-helix234-2396
α-helix243-25614
α-helix262-28524
β-strand287114
β-strand291114
α-helix294-3007

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Photosynthetic reaction centerHprotein260RHODOBACTER SPHAEROIDESP0C0Y7 (AlphaFold model)
Photosynthetic reaction centerLprotein281RHODOBACTER SPHAEROIDESP0C0Y8 (AlphaFold model)
Photosynthetic reaction centerMprotein307RHODOBACTER SPHAEROIDESP0C0Y9 (AlphaFold model)
Sequence of entity 1 (H), FASTA
>1QOV_1 PHOTOSYNTHETIC REACTION CENTER (chains H)
MVGVTAFGNFDLASLAIYSFWIFLAGLIYYLQTENMREGYPLENEDGTPAANQGPFPLPK
PKTFILPHGRGTLTVPGPESEDRPIALARTAVSEGFPHAPTGDPMKDGVGPASWVARRDL
PELDGHGHNKIKPMKAAAGFHVSAGKNPIGLPVRGCDLEIAGKVVDIWVDIPEQMARFLE
VELKDGSTRLLPMQMVKVQSNRVHVNALSSDLFAGIPTIKSPTEVTLLEEDKICGYVAGG
LMYAAPKRKSVVAAMLAEYA
Sequence of entity 2 (L), FASTA
>1QOV_2 PHOTOSYNTHETIC REACTION CENTER (chains L)
ALLSFERKYRVPGGTLVGGNLFDFWVGPFYVGFFGVATFFFAALGIILIAWSAVLQGTWN
PQLISVYPPALEYGLGGAPLAKGGLWQIITICATGAFVSWALREVEICRKLGIGYHIPFA
FAFAILAYLTLVLFRPVMMGAWGYAFPYGIWTHLDWVSNTGYTYGNFHYNPAHMIAISFF
FTNALALALHGALVLSAANPEKGKEMRTPDHEDTFFRDLVGYSIGTLGIHRLGLLLSLSA
VFFSALCMIITGTIWFDQWVDWWQWWVKLPWWANIPGGING
Sequence of entity 3 (M), FASTA
>1QOV_3 PHOTOSYNTHETIC REACTION CENTER (chains M)
AEYQNIFSQVQVRGPADLGMTEDVNLANRSGVGPFSTLLGWFGNAQLGPIYLGSLGVLSL
FSGLMWFFTIGIWFWYQAGWNPAVFLRDLFFFSLEPPAPEYGLSFAAPLKEGGLWLIASF
FMFVAVWSWWGRTYLRAQALGMGKHTAWAFLSAIWLWMVLGFIRPILMGSWSEAVPYGIF
SHLDWTNNFSLVHGNLFYNPFHGLSIAFLYGSALLFAMHGATILAVSRFGGERELEQIAD
RGTAAERAALFWRWTMGFNWTMEGIHRWAIWMAVLVTLTGGIGILLSGTVVDNWYVWGQN
HGMAPLN

Ligands and cofactors

IDNameFormulaCopies
CDLCardiolipinC81 H156 O17 P21
SPNSperoidenoneC41 H70 O21
FE2FE (II) ionFe1
BPHBacteriopheophytin aC55 H76 N4 O62
U10Ubiquinone-10C59 H90 O41
BCLBacteriochlorophyll aC55 H74 Mg N4 O64

Water and common crystallization additives (CL) are not listed.

Primary citation

Structural Details of an Interaction between Cardiolipin and an Integral Membrane Protein. Mcauley, K.E., Fyfe, P.K., Ridge, J.P. et al. Proc Natl Acad Sci U S A (1999) 96:14706. DOI 10.1073/PNAS.96.26.14706 · PubMed

Other PDB entries of the same protein (UniProt P0C0Y7 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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