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2IO8

E. coli Bifunctional glutathionylspermidine synthetase/amidase Incomplex with Mg2+ and ADP

Functional Information from GO Data
ChainGOidnamespacecontents
A0000166molecular_functionnucleotide binding
A0003824molecular_functioncatalytic activity
A0005515molecular_functionprotein binding
A0005524molecular_functionATP binding
A0005829cellular_componentcytosol
A0006749biological_processglutathione metabolic process
A0008216biological_processspermidine metabolic process
A0008884molecular_functionglutathionylspermidine amidase activity
A0008885molecular_functionglutathionylspermidine synthase activity
A0016787molecular_functionhydrolase activity
A0016874molecular_functionligase activity
A0046872molecular_functionmetal ion binding
B0000166molecular_functionnucleotide binding
B0003824molecular_functioncatalytic activity
B0005515molecular_functionprotein binding
B0005524molecular_functionATP binding
B0005829cellular_componentcytosol
B0006749biological_processglutathione metabolic process
B0008216biological_processspermidine metabolic process
B0008884molecular_functionglutathionylspermidine amidase activity
B0008885molecular_functionglutathionylspermidine synthase activity
B0016787molecular_functionhydrolase activity
B0016874molecular_functionligase activity
B0046872molecular_functionmetal ion binding
Functional Information from PDB Data
site_idAC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE MG A 7001
ChainResidue
AGLU330
AASN332
AHOH4001
AHOH4002
AADP5001

site_idAC2
Number of Residues5
DetailsBINDING SITE FOR RESIDUE MG A 7002
ChainResidue
AADP5001
AASP318
AGLU330
AHOH4003
AHOH4004

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG B 7003
ChainResidue
BGLU330
BASN332
BHOH4005
BHOH4006
BADP5002
BMG7004

site_idAC4
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG B 7004
ChainResidue
BASP318
BGLU330
BHOH4007
BHOH4008
BADP5002
BMG7003

site_idAC5
Number of Residues7
DetailsBINDING SITE FOR RESIDUE CYS A 5003
ChainResidue
ASER337
ACYS338
AGLU341
AARG598
ALYS607
AILE611
AHOH3118

site_idAC6
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CYS B 5004
ChainResidue
BSER337
BCYS338
BGLU341
BARG598
BLYS607
BILE611

site_idAC7
Number of Residues26
DetailsBINDING SITE FOR RESIDUE ADP A 5001
ChainResidue
AASP318
ATYR329
AGLU330
ALYS498
AALA531
ALYS533
AARG538
ACYS539
AGLY540
AGLN568
AGLN569
ATRP571
ALEU573
AGLN582
ALEU603
AVAL604
AILE605
AHOH3027
AHOH3117
AHOH3152
AHOH4001
AHOH4002
AHOH4003
AHOH4004
AMG7001
AMG7002

site_idAC8
Number of Residues26
DetailsBINDING SITE FOR RESIDUE ADP B 5002
ChainResidue
BASP318
BTYR329
BGLU330
BLYS498
BALA531
BLYS533
BARG538
BCYS539
BGLY540
BGLN568
BGLN569
BTRP571
BLEU573
BGLN582
BLEU603
BVAL604
BILE605
BHOH3100
BHOH3101
BHOH3854
BHOH4005
BHOH4006
BHOH4007
BHOH4008
BMG7003
BMG7004

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsACT_SITE: S-(gamma-glutamyl-cysteinyl-glycyl)-cysteine intermediate => ECO:0000269|PubMed:9398217
ChainResidueDetails
ACYS59
BCYS59

site_idSWS_FT_FI2
Number of Residues38
DetailsBINDING:
ChainResidueDetails
AGLN58
AGLU391
AGLU392
ATHR446
ALYS498
ALYS533
ACYS539
AGLN568
AGLN582
ALEU603
AASP610
AARG64
BGLN58
BARG64
BVAL78
BASN149
BARG316
BASP318
BGLU330
BASN332
BSER335
BGLU391
AVAL78
BGLU392
BTHR446
BLYS498
BLYS533
BCYS539
BGLN568
BGLN582
BLEU603
BASP610
AASN149
AARG316
AASP318
AGLU330
AASN332
ASER335

site_idSWS_FT_FI3
Number of Residues2
DetailsSITE: Increases nucleophilicity of active site Cys; for amidase activity
ChainResidueDetails
AHIS131
BHIS131

site_idSWS_FT_FI4
Number of Residues2
DetailsSITE: Transition state stabilizer; for synthetase activity
ChainResidueDetails
AARG316
BARG316

site_idSWS_FT_FI5
Number of Residues2
DetailsMOD_RES: Cysteine sulfenic acid (-SOH); transient => ECO:0000269|PubMed:20530482
ChainResidueDetails
ACYS59
BCYS59

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PDB entries from 2025-06-25

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