Structure of PDB 7w4k Chain r

Receptor sequence

>7w4kr (length=459) Species: 9823 (Sus scrofa)

MLKIIIPTTMLLPMTWMSKHNMIWINATVHSLLISLISLSLLNQLGENSL
NFSLTFFSDSLSAPLLVLTTWLLPLMLMASQSHLSKETTTRKKLYITMLI
LLQLFLIMTFTATELILFYILFEATLVPTLIIITRWGNQTERLNAGLYFL
FYTLAGSLPLLVALVYIQNTTGSLNFLIIHYWSHPLSNSWSNIFMWLACI
MAFMVKMPLYGLHLWLPKAHVEAPIAGSMVLAAVLLKLGGYGMMRITTIL
NPLTNYMAYPFLMLSMWGMIMTSSICLRQTDLKSLIAYSSVSHMALVIVA
IMIQTPWSFMGATALMIAHGLTSSMLFCLANTNYERVHSRTMILARGLQT
LLPLMATWWLVASLTNLALPPSINLIGELFIITASFSWSNITIILMGMNM
MITALYSLYMLITTQRGKYTHHINNIKPSFTRENALMALHILPLLLLTLN
PKMILGPLY

3D structure

• PDB: 7w4k The coupling mechanism of mammalian mitochondrial complex I.
• Chain: r
• Resolution: 3.2 Å

Enzymatic activity

• Enzyme Commision number: 7.1.1.2: NADH:ubiquinone reductase (H(+)-translocating).

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	PLX	r	L36 S40	L36 S40
BS02	PLX	r	N188 S189 W190	N188 S189 W190
BS03	PLX	r	L39 V67 L446 L447 N450	L39 V67 L446 L447 N450

Gene Ontology

Molecular Function

• GO:0003954 NADH dehydrogenase activity
• GO:0008137 NADH dehydrogenase (ubiquinone) activity
• GO:0048039 ubiquinone binding

Biological Process

• GO:0006120 mitochondrial electron transport, NADH to ubiquinone
• GO:0009060 aerobic respiration
• GO:0015990 electron transport coupled proton transport
• GO:0032981 mitochondrial respiratory chain complex I assembly
• GO:0042773 ATP synthesis coupled electron transport

Cellular Component

• GO:0005739 mitochondrion
• GO:0005743 mitochondrial inner membrane
• GO:0045271 respiratory chain complex I

External links

• PDB: RCSB:7w4k, PDBe:7w4k, PDBj:7w4k
• PDBsum: 7w4k
• PubMed: 35145322
• UniProt: O79881|NU4M_PIG NADH-ubiquinone oxidoreductase chain 4 (Gene Name=MT-ND4)