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6ACN

STRUCTURE OF ACTIVATED ACONITASE. FORMATION OF THE (4FE-4S) CLUSTER IN THE CRYSTAL

Functional Information from GO Data
ChainGOidnamespacecontents
A0003994molecular_functionaconitate hydratase activity
A0005739cellular_componentmitochondrion
A0005829cellular_componentcytosol
A0006099biological_processtricarboxylic acid cycle
A0016829molecular_functionlyase activity
A0046872molecular_functionmetal ion binding
A0051539molecular_function4 iron, 4 sulfur cluster binding
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE SO4 A 998
ChainResidue
AGLN72
AARG580
ASER642
ASER643
AARG644
AHOH807

site_idAC2
Number of Residues9
DetailsBINDING SITE FOR RESIDUE SF4 A 999
ChainResidue
AILE145
AHIS147
AHIS167
ACYS358
ACYS421
ACYS424
AILE425
AASN446
AHOH806

site_idAC3
Number of Residues10
DetailsBINDING SITE FOR RESIDUE TRC A 899
ChainResidue
ALYS198
AGLY235
AARG666
ATHR730
AHOH770
AHOH824
AHOH849
AHOH978
AHOH979
AHOH1029

site_idACT
Number of Residues19
DetailsTHE ACTIVE SITE HAS BEEN SHOWN, BY MOSSBAUER AND ENDOR SPECTROSCOPY, TO BE AT FE4 OF THE IRON-SULFUR CLUSTER. RESIDUES LINING THE ACTIVE SITE ARE LISTED IN here. THE ACTIVE SITE IS OCCUPIED BY A TIGHTLY BOUND SULFATE ION AND SOLVENT MOLECULES. THE DENSITY THAT HAS BEEN MODELLED AS TRICARBALLYLATE INHIBITOR LIES AT THE ENTRANCE TO THE CLEFT, WITH ITS CENTRAL CARBOXYL POINTING OUT INTO BULK SOLVENT. LYSINES 198 AND 673 AND ARG 666 ARE POTENTIAL CHARGE BALANCING SIDE CHAINS NEARBY. THIS INHIBITOR LOCATION IS APPROXIMATELY 20 ANGSTROMS FROM THE LOCATION OF ATOM FE4 OF FS4 999 IN PROTEIN DATA BANK ENTRY 6ACN.
ChainResidue
ASF4999
AASN170
AASN258
AGLU262
AASN446
AARG447
AARG452
AARG580
ASER642
ASER643
AARG644
ASO4998
AGLN72
AASP100
AHIS101
AHIS147
AASP165
ASER166
AHIS167

Functional Information from PROSITE/UniProt
site_idPS00099
Number of Residues14
DetailsTHIOLASE_3 Thiolases active site. GLGGICIGvGgAdA
ChainResidueDetails
AGLY173-ALA186

site_idPS00450
Number of Residues17
DetailsACONITASE_1 Aconitase family signature 1. IrvGlIGSC.TNSsyedM
ChainResidueDetails
AILE350-MET366

site_idPS01244
Number of Residues14
DetailsACONITASE_2 Aconitase family signature 2. GgiVlanACGPCIG
ChainResidueDetails
AGLY413-GLY426

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues6
DetailsBINDING: BINDING => ECO:0000269|PubMed:10631981
ChainResidueDetails
AGLN72
AASP165
AARG447
AARG452
AARG580
ASER643

site_idSWS_FT_FI2
Number of Residues3
DetailsBINDING: BINDING => ECO:0000269|PubMed:10631981, ECO:0000269|PubMed:2726740
ChainResidueDetails
ACYS358
ACYS421
ACYS424

site_idSWS_FT_FI3
Number of Residues1
DetailsMOD_RES: Pyrrolidone carboxylic acid => ECO:0000269|PubMed:2303429
ChainResidueDetails
APCA1

site_idSWS_FT_FI4
Number of Residues7
DetailsMOD_RES: N6-succinyllysine => ECO:0000250|UniProtKB:Q99KI0
ChainResidueDetails
ALYS4
ALYS384
ALYS522
ALYS550
ALYS564
ALYS601
ALYS662

site_idSWS_FT_FI5
Number of Residues10
DetailsMOD_RES: N6-succinyllysine; alternate => ECO:0000250|UniProtKB:Q99KI0
ChainResidueDetails
ALYS23
ALYS703
ALYS111
ALYS117
ALYS206
ALYS490
ALYS496
ALYS546
ALYS578
ALYS696

site_idSWS_FT_FI6
Number of Residues1
DetailsMOD_RES: Phosphoserine => ECO:0000250|UniProtKB:Q99798
ChainResidueDetails
ASER532

site_idSWS_FT_FI7
Number of Residues1
DetailsMOD_RES: Phosphoserine => ECO:0000250|UniProtKB:Q99KI0
ChainResidueDetails
ASER643

site_idSWS_FT_FI8
Number of Residues3
DetailsMOD_RES: N6-acetyllysine => ECO:0000250|UniProtKB:Q99KI0
ChainResidueDetails
ALYS709
ALYS712
ALYS716

Catalytic Information from CSA
site_idCSA1
Number of Residues7
DetailsAnnotated By Reference To The Literature 1fgh
ChainResidueDetails
ASER642
AGLU262
AASP100
AHIS147
AHIS101
AHIS167
AASP165

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PDB entries from 2024-07-10

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