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1CZF

ENDO-POLYGALACTURONASE II FROM ASPERGILLUS NIGER

Functional Information from GO Data
ChainGOidnamespacecontents
A0004650molecular_functionpolygalacturonase activity
A0005975biological_processcarbohydrate metabolic process
B0004650molecular_functionpolygalacturonase activity
B0005975biological_processcarbohydrate metabolic process
Functional Information from PROSITE/UniProt
site_idPS00502
Number of Residues14
DetailsPOLYGALACTURONASE Polygalacturonase active site. GgtCigGHGLs.IGS
ChainResidueDetails
AGLY216-SER229

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues60
DetailsRepeat: {"description":"PbH1 1","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues40
DetailsRepeat: {"description":"PbH1 2","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues42
DetailsRepeat: {"description":"PbH1 3","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues44
DetailsRepeat: {"description":"PbH1 4","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues42
DetailsRepeat: {"description":"PbH1 5","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues2
DetailsActive site: {"description":"Proton donor","evidences":[{"source":"PubMed","id":"10521427","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues2
DetailsActive site: {"evidences":[{"source":"PubMed","id":"10521427","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues2
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) (high mannose) asparagine","featureId":"CAR_000232","evidences":[{"source":"PubMed","id":"10521427","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"9276972","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues4
Detailsa catalytic site defined by CSA, PubMed 10521427, 11518536
ChainResidueDetails
AASP202
AASP180
AASP201
AHIS223

site_idMCSA1
Number of Residues6
DetailsM-CSA 480
ChainResidueDetails
AASP180proton shuttle (general acid/base)
AASP201proton shuttle (general acid/base)
AASP202electrostatic stabiliser
AHIS223proton shuttle (general acid/base)
AARG256modifies pKa
ALYS258modifies pKa

site_idMCSA2
Number of Residues6
DetailsM-CSA 480
ChainResidueDetails
BASP180proton shuttle (general acid/base)
BASP201proton shuttle (general acid/base)
BASP202electrostatic stabiliser
BHIS223proton shuttle (general acid/base)
BARG256modifies pKa
BLYS258modifies pKa

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PDB entries from 2025-12-03

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