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2QA3

Structural Studies Reveal the Inactivation of E. coli L-aspartate aminotransferase by (S)-4,5-amino-dihydro-2-thiophenecarboxylic acid (SADTA) via two mechanisms (at pH6.5)

Functional Information from GO Data
ChainGOidnamespacecontents
A0003824molecular_functioncatalytic activity
A0004069molecular_functionL-aspartate:2-oxoglutarate aminotransferase activity
A0004838molecular_functionL-tyrosine-2-oxoglutarate transaminase activity
A0005737cellular_componentcytoplasm
A0005829cellular_componentcytosol
A0006520biological_processamino acid metabolic process
A0008483molecular_functiontransaminase activity
A0009058biological_processbiosynthetic process
A0009094biological_processL-phenylalanine biosynthetic process
A0016740molecular_functiontransferase activity
A0030170molecular_functionpyridoxal phosphate binding
A0033585biological_processL-phenylalanine biosynthetic process from chorismate via phenylpyruvate
A0042802molecular_functionidentical protein binding
A0042803molecular_functionprotein homodimerization activity
Functional Information from PDB Data
site_idAC1
Number of Residues3
DetailsBINDING SITE FOR RESIDUE SO4 A 601
ChainResidue
APRO72
AARG76
AHOH784

site_idAC2
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 A 602
ChainResidue
ALYS134
AASN138
AGLU143
AVAL144
AARG145

site_idAC3
Number of Residues9
DetailsBINDING SITE FOR RESIDUE SO4 A 603
ChainResidue
AARG315
AGOL501
AGOL504
AGOL508
AHOH823
AHOH940
AHOH943
AHOH1010
ATHR312

site_idAC4
Number of Residues17
DetailsBINDING SITE FOR RESIDUE PSZ A 600
ChainResidue
AGLY34
ATYR65
AGLY103
ATHR104
ATRP130
AASN183
AASP211
ATYR214
ASER243
ASER245
AKST246
AARG254
APHE348
AARG374
AGOL511
AHOH706
AHOH853

site_idAC5
Number of Residues13
DetailsBINDING SITE FOR RESIDUE PMP A 700
ChainResidue
ATYR65
AGLY102
AGLY103
ATHR104
ATRP130
AASN183
AASP211
ATYR214
ASER243
ASER245
AKST246
AARG254
AHOH706

site_idAC6
Number of Residues11
DetailsBINDING SITE FOR RESIDUE GOL A 501
ChainResidue
AGLY216
AGLY220
ALEU221
AGLU308
ALEU311
ATHR312
AARG315
AGOL508
ASO4603
AHOH943
AHOH1075

site_idAC7
Number of Residues13
DetailsBINDING SITE FOR RESIDUE GOL A 502
ChainResidue
ATYR36
ATHR43
APRO44
ALEU46
AKST246
AGLY249
ATYR251
AGLU310
AASP313
AMET314
AHOH741
AHOH855
AHOH901

site_idAC8
Number of Residues10
DetailsBINDING SITE FOR RESIDUE GOL A 503
ChainResidue
APRO72
AGLY75
AARG76
AGLN79
AALA95
AARG96
ATHR97
AHOH701
AHOH744
AHOH955

site_idAC9
Number of Residues9
DetailsBINDING SITE FOR RESIDUE GOL A 504
ChainResidue
AALA218
AARG315
AGLN316
AGLN319
ASO4603
AHOH767
AHOH851
AHOH911
AHOH1000

site_idBC1
Number of Residues10
DetailsBINDING SITE FOR RESIDUE GOL A 505
ChainResidue
AHOH1042
AGLU3
AASN4
ATYR150
APHE350
ASER372
AHOH735
AHOH987
AHOH1003
AHOH1016

site_idBC2
Number of Residues5
DetailsBINDING SITE FOR RESIDUE GOL A 506
ChainResidue
ATYR55
AASN300
ALEU303
AHOH845
AHOH965

site_idBC3
Number of Residues12
DetailsBINDING SITE FOR RESIDUE GOL A 507
ChainResidue
APRO189
ATHR190
ALEU191
AARG219
AASN345
AHOH724
AHOH747
AHOH792
AHOH804
AHOH875
AHOH953
AHOH1009

site_idBC4
Number of Residues8
DetailsBINDING SITE FOR RESIDUE GOL A 508
ChainResidue
AGLY220
ALEU221
AGLU222
AGLU223
AGOL501
ASO4603
AHOH940
AHOH1075

site_idBC5
Number of Residues6
DetailsBINDING SITE FOR RESIDUE GOL A 509
ChainResidue
AGLY41
ATHR381
AASN384
AHOH866
AHOH1051
AHOH1052

site_idBC6
Number of Residues8
DetailsBINDING SITE FOR RESIDUE GOL A 510
ChainResidue
AASP301
AALA302
AARG304
AALA305
AGLU308
AHOH760
AHOH923
AHOH1081

site_idBC7
Number of Residues10
DetailsBINDING SITE FOR RESIDUE GOL A 511
ChainResidue
AILE33
ATYR65
AKST246
AARG280
AASN285
APSZ600
AHOH706
AHOH761
AHOH896
AHOH1033

site_idBC8
Number of Residues8
DetailsBINDING SITE FOR RESIDUE GOL A 512
ChainResidue
AASN30
ALEU31
AGLY32
AILE33
AGLY34
AVAL35
AASN376
AHOH1011

site_idBC9
Number of Residues6
DetailsBINDING SITE FOR RESIDUE GOL A 513
ChainResidue
AGLY67
AILE68
AASP69
ALYS276
AHOH761
AHOH840

Functional Information from PROSITE/UniProt
site_idPS00105
Number of Residues14
DetailsAA_TRANSFER_CLASS_1 Aminotransferases class-I pyridoxal-phosphate attachment site. SYSKnfGLyNERVG
ChainResidueDetails
ASER243-GLY256

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsBinding site: {"evidences":[{"source":"PDB","id":"1ART","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1CZE","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3QPG","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4DBC","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsBinding site: {"evidences":[{"source":"PDB","id":"1AIB","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1ART","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1CZE","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1SPA","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3QPG","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4DBC","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsBinding site: {"evidences":[{"source":"PDB","id":"1AIB","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1ART","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1ASC","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1CZE","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1SPA","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3QPG","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4DBC","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsBinding site: {"evidences":[{"source":"PDB","id":"1AHG","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1AIB","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1ARG","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1ART","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1CZE","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3QPG","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4DBC","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues1
DetailsModified residue: {"description":"N6-(pyridoxal phosphate)lysine","evidences":[{"source":"PubMed","id":"11148029","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"1993208","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"3298240","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"9891001","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1AAW","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1AHE","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1AHF","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1AHX","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1AHY","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1ARI","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1ARS","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1ASA","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1ASB","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1ASD","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1ASE","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1ASF","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1ASG","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1ASM","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1ASN","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1B4X","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1CZC","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1CZE","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1G4V","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1G4X","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1G7W","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1G7X","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1IX6","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1IX7","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1IX8","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1QIR","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1QIS","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1QIT","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1YOO","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"2D5Y","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"2D61","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"2D63","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"2D7Y","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3AAT","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3ZZJ","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"5EAA","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ay4
ChainResidueDetails
AASP211
ATRP130

site_idCSA2
Number of Residues1
DetailsAnnotated By Reference To The Literature 1ay4
ChainResidueDetails
AILE68

site_idMCSA1
Number of Residues3
DetailsM-CSA 777
ChainResidueDetails
ATRP130steric role
AASP211proton shuttle (general acid/base)
AKST246proton shuttle (general acid/base)

239803

PDB entries from 2025-08-06

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