3V3Z

I(L177)H mutant structure of photosynthetic reaction center from Rhodobacter sphaeroides

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (H)	Reaction center protein H chain	polymer	241	26170.1	1	UniProt (P0C0Y7) Pfam (PF03967) Pfam (PF05239)	Rhodobacter sphaeroides	Photosynthetic reaction center H subunit
2	B (L)	Reaction center protein L chain	polymer	281	31385.4	1	UniProt (P0C0Y8) Pfam (PF00124)	Rhodobacter sphaeroides	Photosynthetic reaction center L subunit
3	C (M)	Reaction center protein M chain	polymer	302	33885.9	1	UniProt (P0C0Y9) Pfam (PF00124)	Rhodobacter sphaeroides	Photosynthetic reaction center M subunit
4	D, W, X, Y, Z (H, M)	LAURYL DIMETHYLAMINE-N-OXIDE	non-polymer		229.4	5	Chemie (LDA)
5	AA, BA, CA, E, F (M, H)	PHOSPHATE ION	non-polymer		95.0	5	Chemie (PO4)
6	G, H, P (H, L)	HEPTANE-1,2,3-TRIOL	non-polymer		148.2	3	Chemie (HTO)
7	I, Q (H, L)	1,4-DIETHYLENE DIOXIDE	non-polymer		88.1	2	Chemie (DIO)
8	J (H)	POTASSIUM ION	non-polymer		39.1	1	Chemie (K)
9	K, L, M, R (L, M)	BACTERIOCHLOROPHYLL A	non-polymer		911.5	4	Chemie (BCL)
10	N, S (L, M)	BACTERIOPHEOPHYTIN A	non-polymer		889.2	2	Chemie (BPH)
11	O, U (L, M)	UBIQUINONE-10	non-polymer		863.3	2	Chemie (U10)
12	T (M)	FE (III) ION	non-polymer		55.8	1	Chemie (FE)
13	V (M)	SPEROIDENONE	non-polymer		595.0	1	Chemie (SPN)
14	DA (M)	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
15	EA, FA, GA (H, L, M)	water	water		18.0	49	Chemie (HOH)

Sequence modifications

L: 1 - 281 (UniProt: P0C0Y8)

PDB	External Database	Details
His 177	Ile 178	engineered mutation
Thr 178	Ser 179	SEE REMARK 999

M: 1 - 302 (UniProt: P0C0Y9)

PDB	External Database	Details
Thr 8	Ser 9	SEE REMARK 999

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	91441.4
Non-Polymers*	Number of molecules	27
	Total formula weight	10119.2
All*	Total formula weight	101560.6

*Water molecules are not included.