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80 microsecond laue diffraction snapshot from crystals of a photosynthetic reaction centre without illumination.

Analyse 80 microsecond laue diffraction snapshot from crystals of a photosynthetic… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB: 2X5U
Type: protein
Length: 1,171 residues
Chains: 4
Method: x-ray diffraction
Collection: MolNFT v1 / PDB
Contract: 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner: 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule: Photosynthetic reaction center cytochrome C subunit; Reaction center protein H chain…
UniProt: P07173, P06008, P06009, P06010
Ligands: HEC, BCB, BPB, MQ7, FE2
Pockets: 17 · best druggability 0.85

Structure

x-ray diffraction · 4 distinct chains · 49% helix, 9% strand (DSSP).

Chain	Molecule	Type	Residues	Secondary structure	UniProt
C	Photosynthetic reaction center cytochrome C subunit	protein	332	43% helix, 4% strand	P07173
H	Reaction center protein H chain	protein	243	26% helix, 26% strand	P06008
L	Reaction center protein L chain	protein	273	64% helix, 5% strand	P06009
M	Reaction center protein M chain	protein	323	60% helix, 6% strand	P06010

Ligands and binding sites

HEC · Heme C · ligand · 4 copies · chains C, L, M
BCB · Bacteriochlorophyll B · ligand · 4 copies · chains L, M
BPB · Bacteriopheophytin B · ligand · 2 copies · chains L, M
MQ7 · Menaquinone-7 · ligand · chains L, M
FE2 · Fe (II) ion · metal · chains L, M

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

17 pockets found on a 1 Å grid, 12 with a druggability of 0.5 or more.

Pocket	Volume (Å³)	Druggability	Buriedness	Lining residues	Inside
1	629	0.85	0.89	78	HEC
2	1193	0.83	0.83	87	BCB
3	233	0.80	0.93	32	HEC
4	77	0.72	0.97	26	empty
5	179	0.71	0.88	24	MQ7

Interfaces

6 interfaces between chains.

L–M · 4464 Å² buried · 61 hydrogen bonds · protein-protein
H–M · 2922 Å² buried · 50 hydrogen bonds · protein-protein
C–M · 2762 Å² buried · 37 hydrogen bonds · protein-protein
H–L · 1843 Å² buried · 21 hydrogen bonds · protein-protein
C–L · 1792 Å² buried · 31 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 8 cofactor, 1 modified (heme c attachment, formylation).

Compared structures

2X5U · 80 microsecond Laue diffraction snapshot from crystals of a photosynthetic reaction… · the same entry in another collection · chain M against M, TM-score 1.00
P07173 · AlphaFold monomer V2.0 prediction for photosynthetic reaction center cytochrome C subunit… · a predicted model of the same protein · chain C against A, TM-score 1.00
P06009 · AlphaFold monomer V2.0 prediction for reaction center protein L chain (P06009) · a predicted model of the same protein · chain L against A, TM-score 0.99
P06010 · AlphaFold monomer V2.0 prediction for reaction center protein M chain (P06010) · a predicted model of the same protein · chain M against A, TM-score 0.98
P06008 · AlphaFold monomer V2.0 prediction for reaction center protein H chain (P06008) · a predicted model of the same protein · chain H against A, TM-score 0.95

Analyse

Open in the research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides and crosslinks on the 3D structure
Every structure of UniProt P07173
Every structure of UniProt P06008
Every structure of UniProt P06009
Every structure of UniProt P06010
Elsewhere: RCSB PDB 2X5U · PDBe 2X5U · UniProt P07173 · UniProt P06008 · UniProt P06009 · UniProt P06010

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