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(-) Description

Authors :  C. J. Jeffery, L. M. Gloss, G. A. Petsko, D. Ringe
Date :  30 Dec 98  (Deposition) - 27 Oct 00  (Release) - 13 Jul 11  (Revision)
Resolution :  2.45
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (2x)
Keywords :  Transferase, Aminotransferase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
Reference :  C. J. Jeffery, L. M. Gloss, G. A. Petsko, D. Ringe
The Role Of Residues Outside The Active Site: Structural Basis For Function Of C191 Mutants Of Escherichia Coli Aspartate Aminotransferase.
Protein Eng. V. 13 105 2000
PubMed-ID: 10708649  |  Reference-DOI: 10.1093/PROTEIN/13.2.105

(-) Compounds

    Cellular LocationCYTOPLASM
    EC Number2.6.1.1
    Expression SystemESCHERICHIA COLI
    Expression System Cellular LocationCYTOPLASM
    Expression System Taxid562
    Expression System Vector TypePLASMID
    Organism ScientificESCHERICHIA COLI
    Organism Taxid562

 Structural Features

(-) Chains, Units

Asymmetric Unit A
Biological Unit 1 (2x)A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 2)

Asymmetric Unit (2, 2)
No.NameCountTypeFull Name
Biological Unit 1 (2, 4)
No.NameCountTypeFull Name

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
1AC1SOFTWARETYR A:70 , GLY A:108 , THR A:109 , TRP A:140 , ASN A:194 , ASP A:222 , ALA A:224 , TYR A:225 , SER A:255 , SER A:257 , LYS A:258 , ARG A:266BINDING SITE FOR RESIDUE PLP A 458
2AC2SOFTWAREILE A:17 , GLY A:38 , TYR A:70 , TRP A:140 , ASN A:194 , ARG A:292 , ARG A:386 , HOH A:712 , HOH A:764BINDING SITE FOR RESIDUE MAE A 410

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1B4X)

(-) Cis Peptide Bonds  (2, 2)

Asymmetric Unit
1Asn A:137 -Pro A:138
2Asn A:194 -Pro A:195

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1B4X)

(-) PROSITE Motifs  (1, 1)

Asymmetric Unit (1, 1)
1AA_TRANSFER_CLASS_1PS00105 Aminotransferases class-I pyridoxal-phosphate attachment site.AAT_ECOLI243-256  1A:255-268
Biological Unit 1 (1, 2)
1AA_TRANSFER_CLASS_1PS00105 Aminotransferases class-I pyridoxal-phosphate attachment site.AAT_ECOLI243-256  2A:255-268

(-) Exons   (0, 0)

(no "Exon" information available for 1B4X)

(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it)
Chain A from PDB  Type:PROTEIN  Length:396
 aligned with AAT_ECOLI | P00509 from UniProtKB/Swiss-Prot  Length:396

    Alignment length:396
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390      
               SCOP domains d1b4xa_ A: Aspartate aminotransferase, AAT                                                                                                                                                                                                                                                                                                                                                                   SCOP domains
               CATH domains ----------1b4xA01 A:15-48,A:328-409         1b4xA02 A:49-327 Type I PLP-dependent aspartate aminotransferase-like (Major domain)                                                                                                                                                                                           1b4xA01 A:15-48,A:328-409 Aspartate Aminotransferase, domain 1                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ................hhhh..........................hhhhhhhhhhhhh............hhhhhhhhhhhh....hhhh...eeeeee..hhhhhhhhhhhhhhh....eeee.....hhhhhhhhhh..eee.............hhhhhhhh.......eeeee............hhhhhhhhhhhhh...eeeeee..........hhhhhhhhhhhh...eeeeee.......hhh..eeeeee...hhhhhhhhhhhhhhhh.......hhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh......hhhhh....eee....hhhhhhhhhh.........eeehhh.....hhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------AA_TRANSFER_CL-------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                                    14        24        34        44        54        64|       75        85        95       105       115       125|||    140       150 ||    161       171       181       191       201       211       221       231|      242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402  ||  
                                                                                      64|                                                         126||                152|                                                                          231|                                                                                                                                                                         405|  
                                                                                       66                                                          129|                 154                                                                           233                                                                                                                                                                          407  

   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 1)

Asymmetric Unit

(-) CATH Domains  (2, 2)

Asymmetric Unit
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1B4X)

(-) Gene Ontology  (14, 14)

Asymmetric Unit(hide GO term definitions)
Chain A   (AAT_ECOLI | P00509)
molecular function
    GO:0004069    L-aspartate:2-oxoglutarate aminotransferase activity    Catalysis of the reaction: L-aspartate + 2-oxoglutarate = oxaloacetate + L-glutamate.
    GO:0080130    L-phenylalanine:2-oxoglutarate aminotransferase activity    Catalysis of the reaction: L-phenylalanine + 2-oxoglutarate = phenylpyruvate + L-glutamate.
    GO:0004838    L-tyrosine:2-oxoglutarate aminotransferase activity    Catalysis of the reaction: L-tyrosine + 2-oxoglutarate = 4-hydroxyphenylpyruvate + L-glutamate.
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    GO:0042802    identical protein binding    Interacting selectively and non-covalently with an identical protein or proteins.
    GO:0030170    pyridoxal phosphate binding    Interacting selectively and non-covalently with pyridoxal 5' phosphate, 3-hydroxy-5-(hydroxymethyl)-2-methyl4-pyridine carboxaldehyde 5' phosphate, the biologically active form of vitamin B6.
    GO:0008483    transaminase activity    Catalysis of the transfer of an amino group to an acceptor, usually a 2-oxo acid.
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
biological process
    GO:0009094    L-phenylalanine biosynthetic process    The chemical reactions and pathways resulting in the formation of L-phenylalanine, the L-enantiomer of 2-amino-3-phenylpropanoic acid, i.e. (2S)-2-amino-3-phenylpropanoic acid.
    GO:0033585    L-phenylalanine biosynthetic process from chorismate via phenylpyruvate    The chemical reactions and pathways resulting in the formation of L-phenylalanine from other compounds, including chorismate, via the intermediate phenylpyruvate.
    GO:0009058    biosynthetic process    The chemical reactions and pathways resulting in the formation of substances; typically the energy-requiring part of metabolism in which simpler substances are transformed into more complex ones.
    GO:0006520    cellular amino acid metabolic process    The chemical reactions and pathways involving amino acids, carboxylic acids containing one or more amino groups, as carried out by individual cells.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.


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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

        AAT_ECOLI | P005091aam 1aaw 1ahe 1ahf 1ahg 1ahx 1ahy 1aia 1aib 1aic 1amq 1amr 1ams 1arg 1arh 1ari 1ars 1art 1asa 1asb 1asc 1asd 1ase 1asf 1asg 1asl 1asm 1asn 1bqa 1bqd 1c9c 1cq6 1cq7 1cq8 1czc 1cze 1g4v 1g4x 1g7w 1g7x 1ix6 1ix7 1ix8 1qir 1qis 1qit 1spa 1toe 1tog 1toi 1toj 1tok 1x28 1x29 1x2a 1yoo 2aat 2d5y 2d61 2d63 2d64 2d65 2d66 2d7y 2d7z 2q7w 2qa3 2qb2 2qb3 2qbt 3aat 3qn6 3qpg 3zzj 3zzk 4a00 4dbc 4f5f 4f5g 4f5h 4f5i 4f5j 4f5k 4f5l 4f5m 5eaa 5t4l

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 1B4X)