4HB8

Crystal structure of PpcA K22Q mutant

Functional Information from GO Data

Chain	GOid	namespace	contents
A	0009055	molecular_function	electron transfer activity
A	0020037	molecular_function	heme binding

Functional Information from PDB Data

site_id	AC1
Number of Residues	17
Details	BINDING SITE FOR RESIDUE HEC A 72

Chain	Residue
A	ALA1
A	CYS30
A	HIS31
A	ILE38
A	GLU39
A	LYS71
A	HEC73
A	DXC75
A	HOH159
A	ASP2
A	ASP3
A	ILE4
A	PHE15
A	HIS17
A	GLN21
A	VAL24
A	CYS27

---

site_id	AC2
Number of Residues	15
Details	BINDING SITE FOR RESIDUE HEC A 73

Chain	Residue
A	VAL13
A	ALA19
A	HIS20
A	ALA23
A	VAL24
A	GLY50
A	CYS51
A	CYS54
A	HIS55
A	LYS60
A	PRO62
A	HEC72
A	HOH123
A	HOH147
A	HOH164

---

site_id	AC3
Number of Residues	24
Details	BINDING SITE FOR RESIDUE HEC A 74

Chain	Residue
A	ALA1
A	ASP2
A	LEU6
A	ALA8
A	LYS9
A	ASN10
A	GLU32
A	GLY36
A	PHE41
A	GLY42
A	LYS43
A	ALA46
A	HIS47
A	LYS52
A	HIS55
A	PRO62
A	THR63
A	LYS64
A	CYS65
A	CYS68
A	HIS69
A	HOH101
A	HOH115
A	HOH134

---

site_id	AC4
Number of Residues	13
Details	BINDING SITE FOR RESIDUE DXC A 75

Chain	Residue
A	ILE4
A	LEU6
A	LYS29
A	LYS37
A	ILE38
A	PHE41
A	MET45
A	GLY50
A	HEC72
A	HOH101
A	HOH102
A	HOH111
A	HOH114

---

site_id	AC5
Number of Residues	7
Details	BINDING SITE FOR RESIDUE SO4 A 76

Chain	Residue
A	HIS31
A	GLU32
A	GLY36
A	LYS37
A	ILE38
A	GLU39
A	HOH105

---

site_id	AC6
Number of Residues	6
Details	BINDING SITE FOR RESIDUE SO4 A 77

Chain	Residue
A	LYS28
A	GLU32
A	LYS43
A	HIS47
A	HOH126
A	HOH154

---

site_id	AC7
Number of Residues	6
Details	BINDING SITE FOR RESIDUE SO4 A 78

Chain	Residue
A	ALA1
A	GLY42
A	LYS43
A	GLU44
A	LYS71
A	HOH112

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