9KPS

Cryo-EM structure of Saccharomyces cerevisiae Mitochondrial Respiratory Complex II

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Succinate dehydrogenase [ubiquinone] flavoprotein subunit, mitochondrial	polymer	593	65307.6	1	UniProt (Q00711) Pfam (PF00890) Pfam (PF02910)	Saccharomyces cerevisiae (brewer's yeast)	Flavoprotein subunit of complex II,FP
2	B (B)	Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial	polymer	238	27332.7	1	UniProt (P21801) Pfam (PF13085) Pfam (PF13534)	Saccharomyces cerevisiae (brewer's yeast)	Iron-sulfur subunit of complex II,Ip
3	C (C)	Sdh3p	polymer	144	16396.1	1	UniProt (C7GVH5) Pfam (PF01127) UniProt (by SIFTS) (P33421)	Saccharomyces cerevisiae (brewer's yeast)	Succinate dehydrogenase [ubiquinone] cytochrome b subunit, mitochondrial
4	D (D)	Succinate dehydrogenase [ubiquinone] cytochrome b small subunit, mitochondrial	polymer	134	14799.1	1	UniProt (P37298) Pfam (PF05328)	Saccharomyces cerevisiae (brewer's yeast)	CybS,Succinate-ubiquinone reductase membrane anchor subunit
5	E (A)	FLAVIN-ADENINE DINUCLEOTIDE	non-polymer		785.5	1	Chemie (FAD)
6	F (B)	FE2/S2 (INORGANIC) CLUSTER	non-polymer		175.8	1	Chemie (FES)
7	G (B)	IRON/SULFUR CLUSTER	non-polymer		351.6	1	Chemie (SF4)
8	H (B)	FE3-S4 CLUSTER	non-polymer		295.8	1	Chemie (F3S)
9	I (D)	1,2-dioleoyl-sn-glycero-3-phosphoethanolamine	non-polymer		744.0	1	Chemie (PEE)

Sequence modifications

D: 34 - 167 (UniProt: P37298)

PDB	External Database	Details
Gly 123	Glu 123	conflict

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	123835.5
Non-Polymers*	Number of molecules	5
	Total formula weight	2352.8
All*	Total formula weight	126188.3

*Water molecules are not included.