General Information of Target

Target ID LDTP01774
Target Name Cytochrome c oxidase subunit 3 (MT-CO3)
Gene Name MT-CO3
Gene ID 4514
Synonyms
COIII; COXIII; MTCO3; Cytochrome c oxidase subunit 3; EC 7.1.1.9; Cytochrome c oxidase polypeptide III
3D Structure
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2D Sequence (FASTA)
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3D Structure (PDB)
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Sequence
MTHQSHAYHMVKPSPWPLTGALSALLMTSGLAMWFHFHSMTLLMLGLLTNTLTMYQWWRD
VTRESTYQGHHTPPVQKGLRYGMILFITSEVFFFAGFFWAFYHSSLAPTPQLGGHWPPTG
ITPLNPLEVPLLNTSVLLASGVSITWAHHSLMENNRNQMIQALLITILLGLYFTLLQASE
YFESPFTISDGIYGSTFFVATGFHGLHVIIGSTFLTICFIRQLMFHFTSKHHFGFEAAAW
YWHFVDVVWLFLYVSIYWWGS
Target Bioclass
Enzyme
Family
Cytochrome c oxidase subunit 3 family
Subcellular location
Mitochondrion inner membrane
Function
Component of the cytochrome c oxidase, the last enzyme in the mitochondrial electron transport chain which drives oxidative phosphorylation. The respiratory chain contains 3 multisubunit complexes succinate dehydrogenase (complex II, CII), ubiquinol-cytochrome c oxidoreductase (cytochrome b-c1 complex, complex III, CIII) and cytochrome c oxidase (complex IV, CIV), that cooperate to transfer electrons derived from NADH and succinate to molecular oxygen, creating an electrochemical gradient over the inner membrane that drives transmembrane transport and the ATP synthase. Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Electrons originating from reduced cytochrome c in the intermembrane space (IMS) are transferred via the dinuclear copper A center (CU(A)) of subunit 2 and heme A of subunit 1 to the active site in subunit 1, a binuclear center (BNC) formed by heme A3 and copper B (CU(B)). The BNC reduces molecular oxygen to 2 water molecules using 4 electrons from cytochrome c in the IMS and 4 protons from the mitochondrial matrix.
Uniprot ID
P00414
Ensemble ID
ENST00000362079.2
HGNC ID
HGNC:7422

Probe(s) Labeling This Target

ABPP Probe
Click To Hide/Show 4 Probe Related to This Target
Probe name Structure Binding Site(Ratio) Interaction ID Ref
TH211
 Probe Info 
Y67(15.40)  LDD0260  [1]
YN-1
 Probe Info 
100.00  LDD0444  [2]
Acrolein
 Probe Info 
N.A.  LDD0222  [3]
Crotonaldehyde
 Probe Info 
H71(0.00); H70(0.00)  LDD0219  [3]
PAL-AfBPP Probe
Click To Hide/Show 1 Probe Related to This Target
Probe name Structure Binding Site(Ratio) Interaction ID Ref
OEA-DA
 Probe Info 
6.99  LDD0046  [4]

Competitor(s) Related to This Target

Competitor ID Name Cell line Binding Site(Ratio) Interaction ID Ref
 LDCM0108  Chloroacetamide HeLa N.A.  LDD0222  [3]
 LDCM0109  NEM HeLa N.A.  LDD0227  [3]

The Interaction Atlas With This Target

The Protein(s) Related To This Target

Transporter and channel
Click To Hide/Show 1 Protein(s) Interacting with This Target
Protein name Family Uniprot ID
Alpha-synuclein (SNCA) Synuclein family P37840

The Drug(s) Related To This Target

Approved
Click To Hide/Show 1 Drug(s) Interacting with This Target
Drug Name Drug Type External ID
Cholic Acid Small molecular drug DB02659
Investigative
Click To Hide/Show 1 Drug(s) Interacting with This Target
Drug Name Drug Type External ID
N-formylmethionine Small molecular drug DB04464

References

1 Chemoproteomic profiling of kinases in live cells using electrophilic sulfonyl triazole probes. Chem Sci. 2021 Jan 21;12(9):3295-3307. doi: 10.1039/d0sc06623k.
2 Ynamide Electrophile for the Profiling of Ligandable Carboxyl Residues in Live Cells and the Development of New Covalent Inhibitors. J Med Chem. 2022 Aug 11;65(15):10408-10418. doi: 10.1021/acs.jmedchem.2c00272. Epub 2022 Jul 26.
3 ACR-Based Probe for the Quantitative Profiling of Histidine Reactivity in the Human Proteome. J Am Chem Soc. 2023 Mar 8;145(9):5252-5260. doi: 10.1021/jacs.2c12653. Epub 2023 Feb 27.
4 Mapping Protein Targets of Bioactive Small Molecules Using Lipid-Based Chemical Proteomics. ACS Chem Biol. 2017 Oct 20;12(10):2671-2681. doi: 10.1021/acschembio.7b00581. Epub 2017 Sep 20.
Mass spectrometry data entry: PXD007570