7Q7M

Room temperature structure of the Rhodobacter Sphaeroides Photosynthetic Reaction Center F(M197)H mutant at 100 MPa helium gas pressure in a sapphire capillary

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	H	Reaction center protein H chain	polymer	241	26170.1	1	UniProt (P0C0Y7) Pfam (PF03967) Pfam (PF05239) In PDB	Cereibacter sphaeroides	Photosynthetic reaction center H subunit
2	L	Reaction center protein L chain	polymer	281	31360.4	1	UniProt (P0C0Y8) Pfam (PF00124) In PDB	Cereibacter sphaeroides	Photosynthetic reaction center L subunit
3	M	Reaction center protein M chain	polymer	302	33876.9	1	UniProt (P0C0Y9) Pfam (PF00124) In PDB	Cereibacter sphaeroides	Photosynthetic reaction center M subunit
4	H, L, M	LAURYL DIMETHYLAMINE-N-OXIDE	non-polymer		229.4	9	Chemie (LDA)
5	L, M	BACTERIOPHEOPHYTIN A	non-polymer		889.2	2	Chemie (BPH)
6	L, M	BACTERIOCHLOROPHYLL A	non-polymer		911.5	4	Chemie (BCL)
7	L, M	(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate	non-polymer		356.5	2	Chemie (OLC)
8	M	UBIQUINONE-7	non-polymer		659.0	1	Chemie (UQ7)
9	M	FE (III) ION	non-polymer		55.8	1	Chemie (FE)
10	M	PHOSPHATE ION	non-polymer		95.0	2	Chemie (PO4)
11	M	SPEROIDENONE	non-polymer		595.0	1	Chemie (SPN)
12	M	CITRIC ACID	non-polymer		192.1	1	Chemie (CIT)
13	M	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
14		water	water		18.0	194	Chemie (HOH)

Sequence modifications

L: 1 - 281 (UniProt: P0C0Y8)

PDB	External Database	Details
Thr 178	Ser 179	engineered mutation

M: 1 - 302 (UniProt: P0C0Y9)

PDB	External Database	Details
Thr 8	Ser 9	engineered mutation
His 197	Phe 198	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	91407.4
Non-Polymers*	Number of molecules	24
	Total formula weight	9929.5
All*	Total formula weight	101336.9

*Water molecules are not included.