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2UX3

X-ray high resolution structure of the photosynthetic reaction center from Rb. sphaeroides at pH 9 in the neutral state

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(H)
REACTION CENTER PROTEIN H CHAINpolymer26028066.31UniProt (P0C0Y7)RHODOBACTER SPHAEROIDESPHOTOSYNTHETIC REACTION CENTER H SUBUNIT
2B
(L)
REACTION CENTER PROTEIN L CHAINpolymer28131346.41UniProt (P0C0Y8)RHODOBACTER SPHAEROIDESPHOTOSYNTHETIC REACTION CENTER L SUBUNIT
3C
(M)
REACTION CENTER PROTEIN M CHAINpolymer30734398.51UniProt (P0C0Y9)RHODOBACTER SPHAEROIDESPHOTOSYNTHETIC REACTION CENTER M SUBUNIT
4D, E, F, G, O...
(H, L)
GLYCEROLnon-polymer92.16Chemie (GOL)
PubChem (753)
5H, L, R, S
(L, M)
BACTERIOCHLOROPHYLL Anon-polymer911.54Chemie (BCL)
6I, Q, T, U, V...
(L, M)
LAURYL DIMETHYLAMINE-N-OXIDEnon-polymer229.49Chemie (LDA)
PubChem (15433)
7BA, J
(M, L)
BACTERIOPHEOPHYTIN Anon-polymer889.22Chemie (BPH)
8K
(L)
UBIQUINONE-2non-polymer318.41Chemie (UQ2)
PubChem (5280346)
PubChem (119058)
PubChem (6119896)
9M
(L)
PHOSPHATE IONnon-polymer95.01Chemie (PO4)
PubChem (1061)
10N
(L)
HEPTANE-1,2,3-TRIOLnon-polymer148.21Chemie (HTO)
11AA
(M)
FE (III) IONnon-polymer55.81Chemie (FE)
PubChem (29936)
12CA
(M)
UBIQUINONE-10non-polymer863.31Chemie (U10)
13DA
(M)
SPHEROIDENEnon-polymer568.91Chemie (SPO)
PubChem (20055173)
PubChem (20056891)
PubChem (101155243)
PubChem (166928)
PubChem (448343)
PubChem (101155241)
PubChem (101155242)
PubChem (5289392)
PubChem (155926559)
PubChem (6368932)
PubChem (172677795)
14EA
(M)
CARDIOLIPINnon-polymer1464.01Chemie (CDL)
PubChem (17753886)
PubChem (5287898)
15FA, GA, HA
(H, L, M)
waterwater18.0302Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains3
Total formula weight93811.3
Non-Polymers*Number of molecules28
Total formula weight11555.4
All*Total formula weight105366.6
*Water molecules are not included.

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PDB entries from 2026-03-25

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