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(-) Description

Title :  AMINODEOXYCHORISMATE LYASE FROM ESCHERICHIA COLI
 
Authors :  P. Y. Jensen, J. F. Parsons, K. E. Fisher, A. S. Pachikara, M. Tordova, A. E. Eisenstein, J. E. Ladner
Date :  09 Feb 01  (Deposition) - 02 Sep 03  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.79
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (2x)
Keywords :  Lyase, Pyridoxal Phosphate, Aminodeoxychorismate, Pabc (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  P. Y. Jensen, J. F. Parsons, K. E. Fisher, A. S. Pachikara, M. Tordova, A. J. Howard, E. Eisenstein, J. E. Ladner
Structure And Mechanism Of Escherichia Coli Aminodeoxychorismate Lyase
To Be Published
PubMed: search

(-) Compounds

Molecule 1 - 4-AMINO-4-DEOXYCHORISMATE LYASE
    ChainsA
    EC Number4.-.-.-
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    GenePABC
    Organism ScientificESCHERICHIA COLI
    Organism Taxid562

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit A
Biological Unit 1 (2x)A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 1)

Asymmetric Unit (1, 1)
No.NameCountTypeFull Name
1PLP1Ligand/IonPYRIDOXAL-5'-PHOSPHATE
Biological Unit 1 (1, 2)
No.NameCountTypeFull Name
1PLP2Ligand/IonPYRIDOXAL-5'-PHOSPHATE

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREARG A:45 , TYR A:92 , LYS A:140 , GLU A:173 , CYS A:175 , ALA A:176 , ALA A:177 , ASN A:178 , VAL A:197 , GLY A:199 , ILE A:200 , MET A:201 , ASN A:236 , ALA A:237 , HOH A:413 , HOH A:576 , HOH A:577BINDING SITE FOR RESIDUE PLP A 301

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1I2K)

(-) Cis Peptide Bonds  (3, 3)

Asymmetric Unit
No.Residues
1Gly A:98 -Pro A:99
2Met A:239 -Pro A:240
3Arg A:267 -Pro A:268

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1I2K)

(-) PROSITE Motifs  (1, 1)

Asymmetric Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1AA_TRANSFER_CLASS_4PS00770 Aminotransferases class-IV signature.PABC_ECOLI173-202  1A:173-202
Biological Unit 1 (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1AA_TRANSFER_CLASS_4PS00770 Aminotransferases class-IV signature.PABC_ECOLI173-202  2A:173-202

(-) Exons   (0, 0)

(no "Exon" information available for 1I2K)

(-) 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:269
 aligned with PABC_ECOLI | P28305 from UniProtKB/Swiss-Prot  Length:269

    Alignment length:269
                                    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         
           PABC_ECOLI     1 MFLINGHKQESLAVSDRATQFGDGCFTTARVIDGKVSLLSAHIQRLQDACQRLMISCDFWPQLEQEMKTLAAEQQNGVLKVVISRGSGGRGYSTLNSGPATRILSVTAYPAHYDRLRNEGITLALSPVRLGRNPHLAGIKHLNRLEQVLIRSHLEQTNADEALVLDSEGWVTECCAANLFWRKGNVVYTPRLDQAGVNGIMRQFCIRLLAQSSYQLVEVQASLEESLQADEMVICNALMPVMPVCACGDVSFSSATLYEYLAPLCERPN 269
               SCOP domains d1i2ka_ A: Aminodeoxychorismate lyase                                                                                                                                                                                                                                         SCOP domains
               CATH domains 1i2kA01 A:1-108  [code=3.30.470.10, no name defined]                                                        ------------1i2kA02 A:121-265 D-amino Acid Aminotransferase, subunit A, domain 2                                                                             ---- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eee..eee......hhhhhhh.eeeeeeeee..ee.hhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhh.eeeeeeee................eeeeeee...hhhhhhhhhheeeee..................hhhhhhhhhhhh.....eeeee.....eee....eeeeee..eeeee........hhhhhhhhhhhhhh..eeeee..hhhhhhh..eeeee.....eeeeeee..ee...hhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------AA_TRANSFER_CLASS_4           ------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1i2k A   1 MFLINGHKQESLAVSDRATQFGDGCFTTARVIDGKVSLLSAHIQRLQDACQRLMISCDFWPQLEQEMKTLAAEQQNGVLKVVISRGSGGRGYSTLNSGPATRILSVTAYPAHYDRLRNEGITLALSPVRLGRNPHLAGIKHLNRLEQVLIRSHLEQTNADEALVLDSEGWVTECCAANLFWRKGNVVYTPRLDQAGVNGIMRQFCIRLLAQSSYQLVEVQASLEESLQADEMVICNALMPVMPVCACGDVSFSSATLYEYLAPLCERPN 269
                                    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         

   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 1I2K)

(-) Gene Ontology  (7, 7)

Asymmetric Unit(hide GO term definitions)
Chain A   (PABC_ECOLI | P28305)
molecular function
    GO:0008696    4-amino-4-deoxychorismate lyase activity    Catalysis of the reaction: 4-amino-4-deoxychorismate = 4-aminobenzoate + H(+) + pyruvate.
    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:0016829    lyase activity    Catalysis of the cleavage of C-C, C-O, C-N and other bonds by other means than by hydrolysis or oxidation, or conversely adding a group to a double bond. They differ from other enzymes in that two substrates are involved in one reaction direction, but only one in the other direction. When acting on the single substrate, a molecule is eliminated and this generates either a new double bond or a new ring.
    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.
biological process
    GO:0046656    folic acid biosynthetic process    The chemical reactions and pathways resulting in the formation of folic acid, pteroylglutamic acid.
    GO:0008152    metabolic process    The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
    GO:0046654    tetrahydrofolate biosynthetic process    The chemical reactions and pathways resulting in the formation of tetrahydrofolate, 5,6,7,8-tetrahydrofolic acid, a folate derivative bearing additional hydrogens on the pterin group.

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 Related Entries

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

UniProtKB/Swiss-Prot
        PABC_ECOLI | P283051et0 1i2l

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