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Summary Structural details Experimental details Functional details Sequence Neighbor History Downloads

4XIX

Carbonic anhydrase Cah3 from Chlamydomonas reinhardtii in complex with phosphate.

Functional Information from GO Data

Chain	GOid	namespace	contents
A	0004089	molecular_function	carbonate dehydratase activity
A	0008270	molecular_function	zinc ion binding
B	0004089	molecular_function	carbonate dehydratase activity
B	0008270	molecular_function	zinc ion binding
C	0004089	molecular_function	carbonate dehydratase activity
C	0008270	molecular_function	zinc ion binding
D	0004089	molecular_function	carbonate dehydratase activity
D	0008270	molecular_function	zinc ion binding
E	0004089	molecular_function	carbonate dehydratase activity
E	0008270	molecular_function	zinc ion binding
F	0004089	molecular_function	carbonate dehydratase activity
F	0008270	molecular_function	zinc ion binding
G	0004089	molecular_function	carbonate dehydratase activity
G	0008270	molecular_function	zinc ion binding
H	0004089	molecular_function	carbonate dehydratase activity
H	0008270	molecular_function	zinc ion binding

Functional Information from PDB Data

site_id	AC1
Number of Residues	4
Details	binding site for residue ZN A 401

Chain	Residue
A	HIS160
A	HIS162
A	HIS179
A	2HP402

site_id	AC2
Number of Residues	7
Details	binding site for residue 2HP A 402

Chain	Residue
A	THR255
A	ZN401
A	HIS160
A	HIS162
A	HIS179
A	LEU253
A	THR254

site_id	AC3
Number of Residues	4
Details	binding site for residue 2HP A 403

Chain	Residue
A	GLY200
A	ASP275
A	HOH507
G	SER276

site_id	AC4
Number of Residues	6
Details	binding site for residue 2HP A 404

Chain	Residue
A	ASP118
A	PHE119
A	LYS238
A	ARG244
A	2HP405
F	ARG95

site_id	AC5
Number of Residues	9
Details	binding site for residue 2HP A 405

Chain	Residue
A	ASP118
A	2HP404
A	HOH508
A	HOH511
A	HOH526
F	GLY93
F	LYS94
F	ARG95
F	GLU260

site_id	AC6
Number of Residues	4
Details	binding site for residue ZN B 401

Chain	Residue
B	HIS160
B	HIS162
B	HIS179
B	2HP402

site_id	AC7
Number of Residues	9
Details	binding site for residue 2HP B 402

Chain	Residue
B	HIS160
B	HIS162
B	HIS179
B	LEU253
B	THR254
B	THR255
B	ZN401
B	HOH526
B	HOH510

site_id	AC8
Number of Residues	4
Details	binding site for residue 2HP B 403

Chain	Residue
B	ASP280
B	ARG283
B	TYR291
H	HOH501

site_id	AC9
Number of Residues	6
Details	binding site for residue 2HP B 404

Chain	Residue
B	PRO199
B	GLY200
B	ASP275
B	HOH504
B	HOH514
B	HOH502

site_id	AD1
Number of Residues	4
Details	binding site for residue ZN C 401

Chain	Residue
C	HIS160
C	HIS162
C	HIS179
C	2HP402

site_id	AD2
Number of Residues	8
Details	binding site for residue 2HP C 402

Chain	Residue
C	HIS160
C	HIS162
C	HIS179
C	LEU253
C	THR254
C	THR255
C	ZN401
C	HOH501

site_id	AD3
Number of Residues	7
Details	binding site for residue 2HP C 403

Chain	Residue
C	ASP118
C	2HP404
C	HOH502
G	GLY93
G	LYS94
G	ARG95
G	GLU260

site_id	AD4
Number of Residues	8
Details	binding site for residue 2HP C 404

Chain	Residue
C	ASP118
C	PHE119
C	LYS238
C	ARG244
C	2HP403
C	HOH509
C	HOH525
G	ARG95

site_id	AD5
Number of Residues	3
Details	binding site for residue 2HP C 405

Chain	Residue
C	GLY200
C	ASP275
E	SER276

site_id	AD6
Number of Residues	4
Details	binding site for residue ZN D 401

Chain	Residue
D	HIS160
D	HIS162
D	HIS179
D	2HP402

site_id	AD7
Number of Residues	7
Details	binding site for residue 2HP D 402

Chain	Residue
D	HIS160
D	HIS162
D	HIS179
D	LEU253
D	THR254
D	THR255
D	ZN401

site_id	AD8
Number of Residues	4
Details	binding site for residue 2HP D 403

Chain	Residue
D	PRO199
D	GLY200
D	ASP275
F	SER276

site_id	AD9
Number of Residues	4
Details	binding site for residue ZN E 401

Chain	Residue
E	HIS162
E	HIS179
E	2HP402
E	HIS160

site_id	AE1
Number of Residues	7
Details	binding site for residue 2HP E 402

Chain	Residue
E	HIS160
E	HIS162
E	HIS179
E	LEU253
E	THR254
E	THR255
E	ZN401

site_id	AE2
Number of Residues	5
Details	binding site for residue 2HP E 403

Chain	Residue
B	LYS183
B	GLY188
E	LEU130
E	LYS222
H	GLU113

site_id	AE3
Number of Residues	4
Details	binding site for residue 2HP E 404

Chain	Residue
C	SER276
C	ASP280
E	GLY200
E	ASP275

site_id	AE4
Number of Residues	4
Details	binding site for residue ZN F 401

Chain	Residue
F	HIS160
F	HIS162
F	HIS179
F	2HP402

site_id	AE5
Number of Residues	8
Details	binding site for residue 2HP F 402

Chain	Residue
F	HIS160
F	HIS162
F	HIS179
F	LEU253
F	THR254
F	THR255
F	TRP264
F	ZN401

site_id	AE6
Number of Residues	2
Details	binding site for residue 2HP F 403

Chain	Residue
F	PRO199
F	ASP275

site_id	AE7
Number of Residues	4
Details	binding site for residue ZN G 401

Chain	Residue
G	HIS160
G	HIS162
G	HIS179
G	2HP402

site_id	AE8
Number of Residues	7
Details	binding site for residue 2HP G 402

Chain	Residue
G	HIS160
G	HIS162
G	HIS179
G	THR254
G	THR255
G	TRP264
G	ZN401

site_id	AE9
Number of Residues	5
Details	binding site for residue 2HP G 403

Chain	Residue
A	SER276
G	PRO199
G	GLY200
G	ASP275
G	HOH504

site_id	AF1
Number of Residues	5
Details	binding site for residue ZN H 401

Chain	Residue
H	HIS160
H	HIS162
H	HIS179
H	THR254
H	2HP402

site_id	AF2
Number of Residues	7
Details	binding site for residue 2HP H 402

Chain	Residue
H	HIS160
H	HIS162
H	HIS179
H	LEU253
H	THR254
H	THR255
H	ZN401

site_id	AF3
Number of Residues	6
Details	binding site for residue 2HP H 403

Chain	Residue
B	ASP118
H	GLY93
H	LYS94
H	ARG95
H	GLU260
H	2HP404

site_id	AF4
Number of Residues	6
Details	binding site for residue 2HP H 404

Chain	Residue
B	PHE117
B	ASP118
B	PHE119
B	LYS238
B	ARG244
H	2HP403

site_id	AF5
Number of Residues	4
Details	binding site for residue 2HP H 405

Chain	Residue
B	SER276
H	GLY200
H	ASP275
H	HOH501

Functional Information from PROSITE/UniProt

site_id	PS00162
Number of Residues	17
Details	ALPHA_CA_1 Alpha-carbonic anhydrases signature. SEHaMdgrrYamEAHLV

Chain	Residue	Details
A	SER165-VAL181

244693

PDB entries from 2025-11-12

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