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9FKA

Cryo-EM structure of the reduced cytochrome bd oxidase from M. tuberculosis

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Probable integral membrane cytochrome D ubiquinol oxidase (Subunit I) CydA (Cytochrome BD-I oxidase subunit I)polymer48553863.11UniProt (L7N662)
Pfam (PF01654)
Mycobacterium tuberculosis H37Rv
2B
(B)
Probable integral membrane cytochrome D ubiquinol oxidase (Subunit II) CydB (Cytochrome BD-I oxidase subunit II)polymer34637651.01UniProt (O06139)
Pfam (PF02322)
Mycobacterium tuberculosis H37Rv
3C
(A)
PHOSPHATIDYLETHANOLAMINEnon-polymer734.01Chemie (PTY)
4D
(A)
MENAQUINONE-9non-polymer785.21Chemie (MQ9)
5E, F
(A)
PROTOPORPHYRIN IX CONTAINING FEnon-polymer616.52Chemie (HEM)
6G
(A)
CIS-HEME D HYDROXYCHLORIN GAMMA-SPIROLACTONEnon-polymer632.51Chemie (HDD)
7H
(B)
CARDIOLIPINnon-polymer1464.01Chemie (CDL)
8I
(B)
(2R,5R,11R,14R)-5,8,11-trihydroxy-5,11-dioxido-17-oxo-2,14-bis(tetradecanoyloxy)-4,6,10,12,16-pentaoxa-5,11-diphosphatriacont-1-yl tetradecanoatenon-polymer1241.61Chemie (CD4)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight91514.1
Non-Polymers*Number of molecules7
Total formula weight6090.4
All*Total formula weight97604.5
*Water molecules are not included.

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PDB entries from 2025-07-09

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