1WAD

CYTOCHROME C3 WITH 4 HEME GROUPS AND ONE CALCIUM ION

Functional Information from GO Data

Chain	GOid	namespace	contents
A	0009055	molecular_function	electron transfer activity
A	0009061	biological_process	anaerobic respiration
A	0020037	molecular_function	heme binding
A	0046872	molecular_function	metal ion binding

Functional Information from PDB Data

site_id	AC1
Number of Residues	5
Details	BINDING SITE FOR RESIDUE CA A 116

Chain	Residue
A	ASP11
A	ILE13
A	ASN19
A	LEU20
A	HEM115

---

site_id	AC2
Number of Residues	17
Details	BINDING SITE FOR RESIDUE HEM A 117

Chain	Residue
A	HIS26
A	HIS29
A	VAL32
A	LYS33
A	CYS34
A	CYS37
A	HIS38
A	GLY48
A	CYS49
A	HEM114
A	HOH138
A	HOH181
A	HOH191
A	VAL1
A	PRO4
A	PHE12
A	PHE24

---

site_id	AC3
Number of Residues	17
Details	BINDING SITE FOR RESIDUE HEM A 113

Chain	Residue
A	GLY16
A	GLU17
A	CYS37
A	HIS38
A	HIS39
A	LYS44
A	CYS49
A	CYS54
A	HIS55
A	VAL65
A	LYS70
A	GLY78
A	ALA79
A	LYS80
A	PRO81
A	HOH160
A	HOH204

---

site_id	AC4
Number of Residues	10
Details	BINDING SITE FOR RESIDUE HEM A 114

Chain	Residue
A	ASN25
A	THR28
A	HIS29
A	THR82
A	CYS83
A	CYS86
A	HIS87
A	HEM117
A	HOH123
A	HOH127

---

site_id	AC5
Number of Residues	24
Details	BINDING SITE FOR RESIDUE HEM A 115

Chain	Residue
A	ASP6
A	ILE10
A	ASP11
A	PHE12
A	ILE13
A	GLY15
A	LYS18
A	ASN19
A	LEU20
A	VAL22
A	TRP68
A	TYR69
A	VAL72
A	HIS73
A	CYS83
A	HIS87
A	LEU101
A	THR102
A	GLY103
A	CYS104
A	CYS109
A	HIS110
A	CA116
A	HOH145

---

Functional Information from SwissProt/UniProt

site_id	SWS_FT_FI1
Number of Residues	6
Details	BINDING: axial binding residue => ECO:0007744|PDB:1QN0, ECO:0007744|PDB:1QN1, ECO:0007744|PDB:1WAD

Chain	Residue	Details
A	HIS26
A	HIS38
A	HIS39
A	HIS55
A	HIS73
A	HIS110

---

site_id	SWS_FT_FI2
Number of Residues	2
Details	BINDING: axial binding residue => ECO:0007744|PDB:1QN1, ECO:0007744|PDB:1WAD

Chain	Residue	Details
A	HIS29
A	HIS87

---

site_id	SWS_FT_FI3
Number of Residues	8
Details	BINDING: covalent => ECO:0007744|PDB:1QN0, ECO:0007744|PDB:1QN1, ECO:0007744|PDB:1WAD

Chain	Residue	Details
A	CYS34
A	CYS37
A	CYS49
A	CYS54
A	CYS83
A	CYS86
A	CYS104
A	CYS109

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