7XMA | pdb_00007xma

Crystal structure of Bovine heart cytochrome c oxidase, apo structure with DMSO


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 
    0.213 (Depositor), 0.217 (DCC) 
  • R-Value Work: 
    0.185 (Depositor), 0.191 (DCC) 
  • R-Value Observed: 
    0.187 (Depositor) 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history

Literature

Identifying antibiotics based on structural differences in the conserved allostery from mitochondrial heme-copper oxidases.

Nishida, Y.Yanagisawa, S.Morita, R.Shigematsu, H.Shinzawa-Itoh, K.Yuki, H.Ogasawara, S.Shimuta, K.Iwamoto, T.Nakabayashi, C.Matsumura, W.Kato, H.Gopalasingam, C.Nagao, T.Qaqorh, T.Takahashi, Y.Yamazaki, S.Kamiya, K.Harada, R.Mizuno, N.Takahashi, H.Akeda, Y.Ohnishi, M.Ishii, Y.Kumasaka, T.Murata, T.Muramoto, K.Tosha, T.Shiro, Y.Honma, T.Shigeta, Y.Kubo, M.Takashima, S.Shintani, Y.

(2022) Nat Commun 13: 7591-7591

  • DOI: https://doi.org/10.1038/s41467-022-34771-y
  • Primary Citation Related Structures: 
    7XMA, 7XMB, 7XMC, 7XMD

  • PubMed Abstract: 

    Antimicrobial resistance (AMR) is a global health problem. Despite the enormous efforts made in the last decade, threats from some species, including drug-resistant Neisseria gonorrhoeae, continue to rise and would become untreatable. The development of antibiotics with a different mechanism of action is seriously required. Here, we identified an allosteric inhibitory site buried inside eukaryotic mitochondrial heme-copper oxidases (HCOs), the essential respiratory enzymes for life. The steric conformation around the binding pocket of HCOs is highly conserved among bacteria and eukaryotes, yet the latter has an extra helix. This structural difference in the conserved allostery enabled us to rationally identify bacterial HCO-specific inhibitors: an antibiotic compound against ceftriaxone-resistant Neisseria gonorrhoeae. Molecular dynamics combined with resonance Raman spectroscopy and stopped-flow spectroscopy revealed an allosteric obstruction in the substrate accessing channel as a mechanism of inhibition. Our approach opens fresh avenues in modulating protein functions and broadens our options to overcome AMR.


  • Organizational Affiliation
    • Department of Molecular Pharmacology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.

Macromolecule Content 

  • Total Structure Weight: 521.49 kDa 
  • Atom Count: 33,571 
  • Modeled Residue Count: 3,537 
  • Deposited Residue Count: 4,320 
  • Unique protein chains: 13

Macromolecules

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Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Cytochrome c oxidase subunit 1
A, N
514Bos taurusMutation(s): 0 
EC: 7.1.1.9
Membrane Entity: Yes 
UniProt
Find proteins for P00396 (Bos taurus)
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UniProt GroupP00396
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Reference Sequence
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Entity ID: 2
MoleculeChains  Sequence LengthOrganismDetailsImage
Cytochrome c oxidase subunit 2,Cytochrome c oxidase subunit 1
B, O
581Bos taurusMutation(s): 0 
EC: 7.1.1.9
Membrane Entity: Yes 
UniProt
Find proteins for Q6EMS9 (Bos indicus)
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Reference Sequence
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Entity ID: 3
MoleculeChains  Sequence LengthOrganismDetailsImage
Cytochrome c oxidase subunit 3
C, P
261Bos taurusMutation(s): 0 
EC: 7.1.1.9
Membrane Entity: Yes 
UniProt
Find proteins for P00415 (Bos taurus)
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UniProt GroupP00415
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Reference Sequence
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Entity ID: 4
MoleculeChains  Sequence LengthOrganismDetailsImage
Cytochrome c oxidase subunit 4 isoform 1
D, Q
147Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for P00423 (Bos taurus)
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UniProt GroupP00423
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Reference Sequence
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Entity ID: 5
MoleculeChains  Sequence LengthOrganismDetailsImage
Cytochrome c oxidase subunit 5A
E, R
109Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for P00426 (Bos taurus)
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UniProt GroupP00426
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Reference Sequence
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Entity ID: 6
MoleculeChains  Sequence LengthOrganismDetailsImage
Cytochrome c oxidase subunit 5B, mitochondrial
F, S
98Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for P00428 (Bos taurus)
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Reference Sequence
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Entity ID: 7
MoleculeChains  Sequence LengthOrganismDetailsImage
Cytochrome c oxidase subunit 6A2, mitochondrial
G, T
84Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for P07471 (Bos taurus)
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UniProt GroupP07471
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Reference Sequence
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Entity ID: 8
MoleculeChains  Sequence LengthOrganismDetailsImage
Cytochrome c oxidase subunit 6B1
H, U
85Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Reference Sequence
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Entity ID: 9
MoleculeChains  Sequence LengthOrganismDetailsImage
Cytochrome c oxidase subunit 6C
I, V
73Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for P04038 (Bos taurus)
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Reference Sequence
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Entity ID: 10
MoleculeChains  Sequence LengthOrganismDetailsImage
Cytochrome c oxidase subunit 7A1
J, W
59Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Find proteins for P07470 (Bos taurus)
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Reference Sequence
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Entity ID: 11
MoleculeChains  Sequence LengthOrganismDetailsImage
Cytochrome c oxidase subunit 7B
K, X
56Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for P13183 (Bos taurus)
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Reference Sequence
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Entity ID: 12
MoleculeChains  Sequence LengthOrganismDetailsImage
Cytochrome c oxidase subunit 7C, mitochondrial
L, Y
47Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for P00430 (Bos taurus)
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Reference Sequence
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Entity ID: 13
MoleculeChains  Sequence LengthOrganismDetailsImage
Cytochrome c oxidase subunit 8B
M, Z
46Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for P10175 (Bos taurus)
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Reference Sequence

Small Molecules

Ligands 14 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
CDL

Query on CDL



Download:Ideal Coordinates CCD File
KA [auth C],
OB [auth P],
VA [auth G],
WB [auth T]
CARDIOLIPIN
C81 H156 O17 P2
XVTUQDWPJJBEHJ-KZCWQMDCSA-L
TGL

Query on TGL



Download:Ideal Coordinates CCD File
HA [auth A]
HB [auth N]
QA [auth D]
SB [auth Q]
YA [auth L]
HA [auth A],
HB [auth N],
QA [auth D],
SB [auth Q],
YA [auth L],
YB [auth Y]
TRISTEAROYLGLYCEROL
C57 H110 O6
DCXXMTOCNZCJGO-UHFFFAOYSA-N
HEA

Query on HEA



Download:Ideal Coordinates CCD File
AA [auth A],
AB [auth N],
BA [auth A],
BB [auth N]
HEME-A
C49 H56 Fe N4 O6
ZGGYGTCPXNDTRV-PRYGPKJJSA-L
PEK

Query on PEK



Download:Ideal Coordinates CCD File
LB [auth P]
OA [auth C]
RB [auth P]
TA [auth G]
UA [auth G]
LB [auth P],
OA [auth C],
RB [auth P],
TA [auth G],
UA [auth G],
VB [auth T]
(1S)-2-{[(2-AMINOETHOXY)(HYDROXY)PHOSPHORYL]OXY}-1-[(STEAROYLOXY)METHYL]ETHYL (5E,8E,11E,14E)-ICOSA-5,8,11,14-TETRAENOATE
C43 H78 N O8 P
ANRKEHNWXKCXDB-BHFWLYLHSA-N
PSC

Query on PSC



Download:Ideal Coordinates CCD File
KB [auth O],
RA [auth E]
(7R,17E,20E)-4-HYDROXY-N,N,N-TRIMETHYL-9-OXO-7-[(PALMITOYLOXY)METHYL]-3,5,8-TRIOXA-4-PHOSPHAHEXACOSA-17,20-DIEN-1-AMINIUM 4-OXIDE
C42 H81 N O8 P
JLPULHDHAOZNQI-AUSZDXHESA-O
PGV

Query on PGV



Download:Ideal Coordinates CCD File
GA [auth A]
GB [auth N]
IB [auth N]
JA [auth C]
MB [auth P]
GA [auth A],
GB [auth N],
IB [auth N],
JA [auth C],
MB [auth P],
NA [auth C],
NB [auth P],
PA [auth D]
(1R)-2-{[{[(2S)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PALMITOYLOXY)METHYL]ETHYL (11E)-OCTADEC-11-ENOATE
C40 H77 O10 P
ADYWCMPUNIVOEA-GPJPVTGXSA-N
DMU

Query on DMU



Download:Ideal Coordinates CCD File
XA [auth J],
XB [auth W],
ZA [auth M],
ZB [auth Z]
DECYL-BETA-D-MALTOPYRANOSIDE
C22 H42 O11
WOQQAWHSKSSAGF-WXFJLFHKSA-N
CHD

Query on CHD



Download:Ideal Coordinates CCD File
LA [auth C]
MA [auth C]
PB [auth P]
QB [auth P]
UB [auth T]
LA [auth C],
MA [auth C],
PB [auth P],
QB [auth P],
UB [auth T],
WA [auth G]
CHOLIC ACID
C24 H40 O5
BHQCQFFYRZLCQQ-OELDTZBJSA-N
CUA

Query on CUA



Download:Ideal Coordinates CCD File
IA [auth B],
JB [auth O]
DINUCLEAR COPPER ION
Cu2
ALKZAGKDWUSJED-UHFFFAOYSA-N
ZN

Query on ZN



Download:Ideal Coordinates CCD File
SA [auth F],
TB [auth S]
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
CU

Query on CU



Download:Ideal Coordinates CCD File
CA [auth A],
CB [auth N]
COPPER (II) ION
Cu
JPVYNHNXODAKFH-UHFFFAOYSA-N
PER

Query on PER



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FA [auth A],
FB [auth N]
PEROXIDE ION
O2
ANAIPYUSIMHBEL-UHFFFAOYSA-N
MG

Query on MG



Download:Ideal Coordinates CCD File
DA [auth A],
DB [auth N]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
NA

Query on NA



Download:Ideal Coordinates CCD File
EA [auth A],
EB [auth N]
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
Modified Residues  2 Unique
IDChains TypeFormula2D DiagramParent
FME
Query on FME
A, N
L-PEPTIDE LINKINGC6 H11 N O3 SMET
TPO
Query on TPO
G, T
L-PEPTIDE LINKINGC4 H10 N O6 PTHR

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free:  0.213 (Depositor), 0.217 (DCC) 
  • R-Value Work:  0.185 (Depositor), 0.191 (DCC) 
  • R-Value Observed: 0.187 (Depositor) 
Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 181.8α = 90
b = 203.577β = 90
c = 177.859γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
PHENIXrefinement
XDSdata reduction
XDSdata scaling
MOLREPphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

& Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Japan Science and TechnologyJapanJPMJCR14M2

Revision History  (Full details and data files)

  • Version 1.0: 2022-12-21
    Type: Initial release
  • Version 1.1: 2023-11-29
    Changes: Data collection, Refinement description
  • Version 1.2: 2024-11-13
    Changes: Structure summary