Structure of PDB 1ctz Chain A

Receptor sequence

>1ctzA (length=108) Species: 4932 (Saccharomyces cerevisiae)

TEFKAGSAKKGATLFKTRCLQCHTVEKGGPHKVGPNLHGIFGRHSGQAEG
YSYTDANIKKNVLWDENNMSEFLTNPKKYIPGTKMAFGGLKKEKDRNDLI
TYLKKATE

3D structure

• PDB: 1ctz Mutation of tyrosine-67 to phenylalanine in cytochrome c significantly alters the local heme environment.
• Chain: A
• Resolution: 1.9 Å

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	HEC	A	C14 C17 H18 G29 L32 S40 G41 Y48 T49 N52 W59 T78 K79 M80 L94	C19 C22 H23 G34 L37 S45 G46 Y53 T54 N57 W64 T83 K84 M85 L99

Gene Ontology

Molecular Function

• GO:0005515 protein binding
• GO:0009055 electron transfer activity
• GO:0020037 heme binding
• GO:0046872 metal ion binding
• GO:1901612 cardiolipin binding

Biological Process

• GO:0006122 mitochondrial electron transport, ubiquinol to cytochrome c
• GO:0006123 mitochondrial electron transport, cytochrome c to oxygen

Cellular Component

• GO:0005739 mitochondrion
• GO:0005758 mitochondrial intermembrane space

External links

• PDB: RCSB:1ctz, PDBe:1ctz, PDBj:1ctz
• PDBsum: 1ctz
• PubMed: 8308895
• UniProt: P00044|CYC1_YEAST Cytochrome c isoform 1 (Gene Name=CYC1)