1QLB

respiratory complex II-like fumarate reductase from Wolinella succinogenes

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, D	FUMARATE REDUCTASE FLAVOPROTEIN SUBUNIT	polymer	656	72941.2	2	UniProt (P17412) Pfam (PF00890) Pfam (PF02910) In PDB	WOLINELLA SUCCINOGENES
2	B, E	FUMARATE REDUCTASE IRON-SULFUR PROTEIN	polymer	239	27197.5	2	UniProt (P17596) Pfam (PF13085) Pfam (PF13183) In PDB	WOLINELLA SUCCINOGENES
3	C, F	FUMARATE REDUCTASE CYTOCHROME B SUBUNIT	polymer	256	29759.1	2	UniProt (P17413) Pfam (PF01127) In PDB	WOLINELLA SUCCINOGENES
4	A, D	FLAVIN-ADENINE DINUCLEOTIDE	non-polymer		785.5	2	Chemie (FAD)
5	A, D	FUMARIC ACID	non-polymer		116.1	2	Chemie (FUM)
6	A, D	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
7	B, E	FE2/S2 (INORGANIC) CLUSTER	non-polymer		175.8	2	Chemie (FES)
8	B, E	FE3-S4 CLUSTER	non-polymer		295.8	2	Chemie (F3S)
9	B, E	IRON/SULFUR CLUSTER	non-polymer		351.6	2	Chemie (SF4)
10	C, F	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	4	Chemie (HEM)
11	C, F	DODECYL-BETA-D-MALTOSIDE	non-polymer		510.6	2	Chemie (LMT)
12		water	water		18.0	504	Chemie (HOH)

Sequence modifications

A, D: 1 - 656 (UniProt: P17412)

PDB	External Database	Details
Asp 281	Arg 281	conflict
Val 282	Cys 282	conflict
Asp 283	Gly 283	conflict
Gly 284	Trp 284	conflict
His 285	Thr 285	conflict
Arg 286	Pro 286	conflict
Phe 287	Ile 287	conflict
Met 288	His 288	conflict
Pro 289	Ala 289	conflict

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	259795.4
Non-Polymers*	Number of molecules	18
	Total formula weight	7017.1
All*	Total formula weight	266812.5

*Water molecules are not included.