Summary Structural details Experimental details Functional details Sequence Neighbor History Downloads

2Q38

Carbonic Anhydrase II in complex with Saccharin at 1.95 Angstrom

Functional Information from GO Data

Chain	GOid	namespace	contents
A	0004064	molecular_function	arylesterase activity
A	0004089	molecular_function	carbonate dehydratase activity
A	0005515	molecular_function	protein binding
A	0005737	cellular_component	cytoplasm
A	0005829	cellular_component	cytosol
A	0005886	cellular_component	plasma membrane
A	0008270	molecular_function	zinc ion binding
A	0015670	biological_process	carbon dioxide transport
A	0016829	molecular_function	lyase activity
A	0018820	molecular_function	cyanamide hydratase activity
A	0038166	biological_process	angiotensin-activated signaling pathway
A	0044070	biological_process	regulation of monoatomic anion transport
A	0045177	cellular_component	apical part of cell
A	0046872	molecular_function	metal ion binding
A	0051453	biological_process	regulation of intracellular pH
A	0070062	cellular_component	extracellular exosome
A	2001150	biological_process	positive regulation of dipeptide transmembrane transport

Functional Information from PDB Data

site_id	AC1
Number of Residues	5
Details	BINDING SITE FOR RESIDUE ZN A 501

Chain	Residue
A	HIS94
A	HIS96
A	HIS119
A	THR199
A	LSA503

site_id	AC2
Number of Residues	4
Details	BINDING SITE FOR RESIDUE HG A 502

Chain	Residue
A	GLN137
A	GLU205
A	CYS206
A	BEZ700

site_id	AC3
Number of Residues	10
Details	BINDING SITE FOR RESIDUE LSA A 503

Chain	Residue
A	HIS94
A	HIS96
A	HIS119
A	VAL143
A	LEU198
A	THR199
A	THR200
A	TRP209
A	ZN501
A	HOH769

site_id	AC4
Number of Residues	7
Details	BINDING SITE FOR RESIDUE LSA A 504

Chain	Residue
A	GLY6
A	TYR7
A	GLY8
A	ASN11
A	PHE231
A	GLU239
A	HOH724

site_id	AC5
Number of Residues	5
Details	BINDING SITE FOR RESIDUE BEZ A 700

Chain	Residue
A	GLN136
A	GLN137
A	PRO138
A	GLU205
A	HG502

site_id	AC6
Number of Residues	6
Details	BINDING SITE FOR RESIDUE GOL A 509

Chain	Residue
A	LYS111
A	LYS112
A	LYS113
A	LYS133
A	GLN137
A	HOH897

site_id	AC7
Number of Residues	6
Details	BINDING SITE FOR RESIDUE GOL A 510

Chain	Residue
A	LYS168
A	THR169
A	LYS172
A	GLU234
A	GLY235
A	HOH860

site_id	AC8
Number of Residues	3
Details	BINDING SITE FOR RESIDUE GOL A 517

Chain	Residue
A	ASP34
A	HIS36
A	HOH791

Functional Information from PROSITE/UniProt

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

Chain	Residue	Details
A	SER105-VAL121

Functional Information from SwissProt/UniProt

site_id	SWS_FT_FI1
Number of Residues	1
Details	Active site: {"description":"Proton donor/acceptor","evidences":[{"source":"PubMed","id":"15667203","evidenceCode":"ECO:0000305"},{"source":"PubMed","id":"17330962","evidenceCode":"ECO:0000305"}]}

Chain

Residue

Details

site_id	SWS_FT_FI2
Number of Residues	1
Details	Binding site: {"evidences":[{"source":"PubMed","id":"11076507","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"12499545","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"1336460","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"1433293","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"1909891","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"19583303","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"3151019","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"3151020","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"4621826","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"7761440","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"7803386","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"7901850","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8218160","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8262987","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8331673","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8399159","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8431430","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8451242","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8482389","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8639494","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8987974","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"9398308","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"9865942","evidenceCode":"ECO:0000269"}]}

Chain

Residue

Details

site_id	SWS_FT_FI3
Number of Residues	2
Details	Binding site: {"evidences":[{"source":"PubMed","id":"11076507","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"12499545","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"1336460","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"1433293","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"1909891","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"19583303","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"3151019","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"3151020","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"7761440","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"7803386","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"7901850","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8218160","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8262987","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8331673","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8399159","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8431430","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8451242","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8482389","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8639494","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8987974","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"9398308","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"9865942","evidenceCode":"ECO:0000269"}]}

Chain

Residue

Details

site_id	SWS_FT_FI4
Number of Residues	1
Details	Binding site: {"evidences":[{"source":"PubMed","id":"10550681","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"19520834","evidenceCode":"ECO:0000269"}]}

Chain

Residue

Details

site_id	SWS_FT_FI5
Number of Residues	1
Details	Site: {"description":"Fine-tunes the proton-transfer properties of H-64","evidences":[{"source":"PubMed","id":"17330962","evidenceCode":"ECO:0000305"}]}

Chain

Residue

Details

site_id	SWS_FT_FI6
Number of Residues	2
Details	Site: {"description":"Fine-tunes the proton-transfer properties of H-64; involved in the binding of some activators, including histamine and L-histidine","evidences":[{"source":"PubMed","id":"16214338","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"9265618","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"17330962","evidenceCode":"ECO:0000305"}]}

Chain

Residue

Details

site_id	SWS_FT_FI7
Number of Residues	1
Details	Site: {"description":"Involved in the binding of some activators, including histamine and L-histidine","evidences":[{"source":"PubMed","id":"16214338","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"9265618","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"17330962","evidenceCode":"ECO:0000305"}]}

Chain

Residue

Details

site_id	SWS_FT_FI8
Number of Residues	2
Details	Modified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"24275569","evidenceCode":"ECO:0007744"}]}

Chain

Residue

Details

Catalytic Information from CSA

site_id	CSA1
Number of Residues	2
Details	Annotated By Reference To The Literature 1ca2

Chain	Residue	Details
A	THR199
A	HIS64

site_id	MCSA1
Number of Residues	6
Details	M-CSA 216

Chain	Residue	Details
A	HIS64	hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor
A	HIS94	metal ligand
A	HIS96	metal ligand
A	GLU106	activator, electrostatic stabiliser, hydrogen bond acceptor
A	HIS119	metal ligand
A	THR199	activator, electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, increase nucleophilicity

		Sequence (fasta)
		PDBx/mmCIF
		PDBML format (no-atom)
		PDB format (full)
		Validation report (PDF)
		EDMap 2fo-fc (MTZ)