6P42

Yeast cytochrome c peroxidase (W191Y:L232H) in complex with iso-1 cytochrome c

Functional Information from GO Data

Chain	GOid	namespace	contents
A	0004601	molecular_function	peroxidase activity
A	0006979	biological_process	response to oxidative stress
A	0020037	molecular_function	heme binding
A	0034599	biological_process	cellular response to oxidative stress
B	0005515	molecular_function	protein binding
B	0005739	cellular_component	mitochondrion
B	0005758	cellular_component	mitochondrial intermembrane space
B	0006122	biological_process	mitochondrial electron transport, ubiquinol to cytochrome c
B	0006123	biological_process	mitochondrial electron transport, cytochrome c to oxygen
B	0009055	molecular_function	electron transfer activity
B	0020037	molecular_function	heme binding
B	0046872	molecular_function	metal ion binding
B	0070469	cellular_component	respirasome
B	1901612	molecular_function	cardiolipin binding
C	0004601	molecular_function	peroxidase activity
C	0006979	biological_process	response to oxidative stress
C	0020037	molecular_function	heme binding
C	0034599	biological_process	cellular response to oxidative stress
D	0005515	molecular_function	protein binding
D	0005739	cellular_component	mitochondrion
D	0005758	cellular_component	mitochondrial intermembrane space
D	0006122	biological_process	mitochondrial electron transport, ubiquinol to cytochrome c
D	0006123	biological_process	mitochondrial electron transport, cytochrome c to oxygen
D	0009055	molecular_function	electron transfer activity
D	0020037	molecular_function	heme binding
D	0046872	molecular_function	metal ion binding
D	0070469	cellular_component	respirasome
D	1901612	molecular_function	cardiolipin binding

Functional Information from PDB Data

site_id	AC1
Number of Residues	19
Details	binding site for residue HEM A 301

Chain	Residue
A	PRO44
A	GLY178
A	LYS179
A	HIS181
A	ASN184
A	SER185
A	TYR191
A	HIS232
A	THR234
A	PHE266
A	HOH401
A	ARG48
A	TRP51
A	PRO145
A	ASP146
A	LEU171
A	MET172
A	HIS175
A	LEU177

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site_id	AC2
Number of Residues	23
Details	binding site for residue HEM B 201

Chain	Residue
A	ALA193
A	ALA194
B	ARG13
B	CYS14
B	CYS17
B	HIS18
B	VAL28
B	GLY29
B	PRO30
B	LEU32
B	SER40
B	GLY41
B	TYR46
B	TYR48
B	THR49
B	ASN52
B	TRP59
B	MET64
B	TYR67
B	THR78
B	LYS79
B	MET80
B	LEU94

---

site_id	AC3
Number of Residues	17
Details	binding site for residue HEM C 301

Chain	Residue
C	PRO44
C	ARG48
C	TRP51
C	PRO145
C	LEU171
C	ALA174
C	HIS175
C	LEU177
C	GLY178
C	LYS179
C	THR180
C	HIS181
C	ASN184
C	SER185
C	TYR191
C	HIS232
C	THR234

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Functional Information from PROSITE/UniProt

site_id	PS00435
Number of Residues	11
Details	PEROXIDASE_1 Peroxidases proximal heme-ligand signature. EVVALMGAHAL

Chain	Residue	Details
A	GLU167-LEU177

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site_id	PS00436
Number of Residues	12
Details	PEROXIDASE_2 Peroxidases active site signature. GPvlVRLaWHIS

Chain	Residue	Details
A	GLY43-SER54

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Functional Information from SwissProt/UniProt

site_id	SWS_FT_FI1
Number of Residues	2
Details	ACT_SITE: Proton acceptor

Chain	Residue	Details
D	CYS14
D	CYS17
A	HIS52
C	HIS52

---

site_id	SWS_FT_FI2
Number of Residues	2
Details	ACT_SITE: Tryptophan radical intermediate => ECO:0000269|PubMed:2851317

Chain	Residue	Details
D	HIS18
D	MET80
A	TYR191
C	TYR191

---

site_id	SWS_FT_FI3
Number of Residues	2
Details	BINDING: axial binding residue => ECO:0000269|PubMed:10722697, ECO:0000269|PubMed:11170452, ECO:0000269|PubMed:2169873, ECO:0000269|PubMed:6092361, ECO:0000269|PubMed:8384877, ECO:0000269|PubMed:8673607

Chain	Residue	Details
A	HIS175
C	HIS175

---

site_id	SWS_FT_FI4
Number of Residues	2
Details	SITE: Transition state stabilizer

Chain	Residue	Details
A	ARG48
C	ARG48

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site_id	SWS_FT_FI5
Number of Residues	2
Details	MOD_RES: Phosphotyrosine => ECO:0007744|PubMed:18407956

Chain	Residue	Details
A	TYR153
C	TYR153

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Catalytic Information from CSA

site_id	MCSA1
Number of Residues	3
Details	M-CSA 709

Chain	Residue	Details
A	ARG48	electrostatic stabiliser
A	HIS52	electrostatic stabiliser, proton acceptor, proton donor
A	TYR191	single electron acceptor, single electron donor

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site_id	MCSA2
Number of Residues	3
Details	M-CSA 709

Chain	Residue	Details
C	ARG48	electrostatic stabiliser
C	HIS52	electrostatic stabiliser, proton acceptor, proton donor
C	TYR191	single electron acceptor, single electron donor

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