2I5N

1.96 A X-ray structure of photosynthetic reaction center from Rhodopseudomonas viridis:Crystals grown by microfluidic technique

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	C	Photosynthetic reaction center cytochrome c subunit	polymer	336	37450.8	1	UniProt (P07173) Pfam (PF02276) In PDB	Blastochloris viridis	Cytochrome c558/c559
2	H	Reaction center protein H chain	polymer	258	28557.5	1	UniProt (P06008) Pfam (PF03967) Pfam (PF05239) In PDB	Blastochloris viridis	Photosynthetic reaction center H subunit
3	L	Reaction center protein L chain	polymer	273	30469.1	1	UniProt (P06009) Pfam (PF00124) In PDB	Blastochloris viridis	Photosynthetic reaction center L subunit
4	M	Reaction center protein M chain	polymer	323	35932.2	1	UniProt (P06010) Pfam (PF00124) In PDB	Blastochloris viridis	Photosynthetic reaction center M subunit
5	L, C, M, H	SULFATE ION	non-polymer		96.1	19	Chemie (SO4)
6	C	HEME C	non-polymer		618.5	4	Chemie (HEC)
7	L, C, H	HEPTANE-1,2,3-TRIOL	non-polymer		148.2	5	Chemie (HTO)
8	L, H, M	LAURYL DIMETHYLAMINE-N-OXIDE	non-polymer		229.4	4	Chemie (LDA)
9	M, L, H	UNKNOWN LIGAND	non-polymer			6	Chemie (UNL)
10	L	FE (II) ION	non-polymer		55.8	1	Chemie (FE2)
11	L, M	BACTERIOCHLOROPHYLL B	non-polymer		909.5	4	Chemie (BCB)
12	L, M	BACTERIOPHEOPHYTIN B	non-polymer		887.2	2	Chemie (BPB)
13	L	MENAQUINONE-9	non-polymer		785.2	1	Chemie (MQ9)
14	L	UBIQUINONE-1	non-polymer		250.3	2	Chemie (UQ1)
15	M	15-cis-1,2-dihydroneurosporene	non-polymer		540.9	1	Chemie (NS5)
16		water	water		18.0	771	Chemie (HOH)

Sequence modifications

H: 1 - 258 (UniProt: P06008)

PDB	External Database	Details
Fme 1	Met 1	modified residue

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	132409.5
Non-Polymers*	Number of molecules	49
	Total formula weight	13252.7
All*	Total formula weight	145662.3

*Water molecules are not included.