1RY5: Reaction center protein L chain

Photosynthetic reaction center mutant from rhodobacter sphaeroides with asp L213 replaced with asn. Determined by X-ray diffraction at 2.1 Å resolution. Released 13 Apr 2004.

Method
X-ray diffraction
Resolution
2.1 Å
Organism
Rhodobacter sphaeroides
Chains
3
Atoms
7,504
Mol. weight
104.06 kDa
Ligands
BCL, BPH, U10, FE2
Released
13 Apr 2004

Explore 1RY5 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

1RY5 contains 50 α-helices and 32 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: 10 helices, 16 β-strands

ElementResiduesLengthSheet
α-helix12-3423
β-strand4311
β-strand4911
α-helix501
α-helix56-616
β-strand62-66510
β-strand71-75510
β-strand87-89311
β-strand98-100311
α-helix104-1074
α-helix110-1123
β-strand123112
β-strand129112
β-strand131-133313
α-helix134-1363
β-strand141-14445
β-strand152-155413
β-strand160-1701113
β-strand175-182813
β-strand188-192513
α-helix193-1953
β-strand197-198213
β-strand203-205313
α-helix210-2123
α-helix217-2193
α-helix227-24317
Chain L: 19 helices, 7 β-strands
ElementResiduesLengthSheet
β-strand211
α-helix7-93
β-strand25-2622
β-strand29-3022
α-helix33-5624
β-strand65-6623
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-strand148-14923
α-helix152-16211
α-helix167-1693
α-helix171-19828
α-helix204-2074
α-helix209-22012
α-helix226-24924
β-strand25114
β-strand25514
α-helix259-2635
α-helix264-2674
Chain M: 21 helices, 9 β-strands
ElementResiduesLengthSheet
β-strand11-1335
α-helix26-283
β-strand2916
β-strand3517
α-helix37-404
β-strand4617
β-strand5116
α-helix54-7724
α-helix82-876
β-strand9418
α-helix95-984
α-helix99-1013
α-helix109-1113
α-helix113-13927
α-helix145-15814
α-helix159-1635
α-helix164-1685
α-helix171-1733
α-helix175-1762
β-strand17718
α-helix179-19214
α-helix196-1983
α-helix200-22526
α-helix227-2293
α-helix234-2396
α-helix243-25614
α-helix264-28623
β-strand28719
β-strand29119
α-helix294-2996

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Reaction center protein L chainLprotein281Rhodobacter sphaeroidesP0C0Y8 (AlphaFold model)
Reaction center protein M chainMprotein307Rhodobacter sphaeroidesP0C0Y9 (AlphaFold model)
Reaction center protein H chainHprotein260Rhodobacter sphaeroidesP0C0Y7 (AlphaFold model)
Sequence of entity 1 (L), FASTA
>1RY5_1 Reaction center protein L chain (chains L)
ALLSFERKYRVPGGTLVGGNLFDFWVGPFYVGFFGVATFFFAALGIILIAWSAVLQGTWN
PQLISVYPPALEYGLGGAPLAKGGLWQIITICATGAFVSWALREVEICRKLGIGYHIPFA
FAFAILAYLTLVLFRPVMMGAWGYAFPYGIWTHLDWVSNTGYTYGNFHYNPAHMIAISFF
FTNALALALHGALVLSAANPEKGKEMRTPDHENTFFRDLVGYSIGTLGIHRLGLLLSLSA
VFFSALCMIITGTIWFDQWVDWWQWWVKLPWWANIPGGING
Sequence of entity 2 (M), FASTA
>1RY5_2 Reaction center protein M chain (chains M)
AEYQNIFSQVQVRGPADLGMTEDVNLANRSGVGPFSTLLGWFGNAQLGPIYLGSLGVLSL
FSGLMWFFTIGIWFWYQAGWNPAVFLRDLFFFSLEPPAPEYGLSFAAPLKEGGLWLIASF
FMFVAVWSWWGRTYLRAQALGMGKHTAWAFLSAIWLWMVLGFIRPILMGSWSEAVPYGIF
SHLDWTNNFSLVHGNLFYNPFHGLSIAFLYGSALLFAMHGATILAVSRFGGERELEQIAD
RGTAAERAALFWRWTMGFNATMEGIHRWAIWMAVLVTLTGGIGILLSGTVVDNWYVWGQN
HGMAPLN
Sequence of entity 3 (H), FASTA
>1RY5_3 Reaction center protein H chain (chains H)
MVGVTAFGNFDLASLAIYSFWIFLAGLIYYLQTENMREGYPLENEDGTPAANQGPFPLPK
PKTFILPHGRGTLTVPGPESEDRPIALARTAVSEGFPHAPTGDPMKDGVGPASWVARRDL
PELDGHGHNKIKPMKAAAGFHVSAGKNPIGLPVRGCDLEIAGKVVDIWVDIPEQMARFLE
VELKDGSTRLLPMQMVKVQSNRVHVNALSSDLFAGIPTIKSPTEVTLLEEDKICGYVAGG
LMYAAPKRKSVVAAMLAEYA

Ligands and cofactors

IDNameFormulaCopies
BCLBacteriochlorophyll aC55 H74 Mg N4 O64
BPHBacteriopheophytin aC55 H76 N4 O62
U10Ubiquinone-10C59 H90 O42
FE2FE (II) ionFe1
PO4Phosphate ionO4 P2
SPOSpheroideneC41 H60 O1
LDALauryl dimethylamine-N-oxideC14 H31 N O3
CDLCardiolipinC81 H156 O17 P21

Water and common crystallization additives (GOL, K) are not listed.

Primary citation

X-Ray Structure Determination of Three Mutants of the Bacterial Photosynthetic Reaction Centers from Rb. sphaeroides; Altered Proton Transfer Pathways. Xu, Q., Axelrod, H.L., Abresch, E.C. et al. Structure (2004) 12:703-715. DOI 10.1016/j.str.2004.03.001 · PubMed

Other PDB entries of the same protein (UniProt P0C0Y8 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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