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(-) Description

Title :  CRYSTAL STRUCTURE OF BETA-CARBOXY-CIS,CIS-MUCONATE CYCLOISOMERASE (CMLE) FROM ACINETOBACTER CALCOACETICUS SP. ADP1
 
Authors :  M. W. Vetting, J. S. Blanchard
Date :  08 Aug 03  (Deposition) - 19 Aug 03  (Release) - 16 Nov 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.30
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (4x)
Keywords :  Cmle, Cycloisomerase, Aromatic Degradation, Isomerase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  M. W. Vetting, J. S. Blanchard
The Lactonizing Enzymes Of The Beta-Ketoadipate Pathway: Th Use Of Fundamentally Different Structural And Mechanistic Motifs To Catalyze Essentially Identical Reactions In The Catabolism Of Aromatics
To Be Published
PubMed: search

(-) Compounds

Molecule 1 - 3-CARBOXY-CIS,CIS-MUCONATE CYCLOISOMERASE
    Chains: A
    EC Number: 5.5.1.2
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET28A(+)
    Expression System Strain: B834DE3
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: PCAB
    Organism Scientific: ACINETOBACTER CALCOACETICUS
    Organism Taxid: 471
    Synonym: 3-CARBOXYMUCONATE LACTONIZING ENZYME, CMLE

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit : A
Biological Unit 1 (4x): A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 1Q5N)

(-) Sites  (0, 0)

(no "Site" information available for 1Q5N)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1Q5N)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1Q5N)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1Q5N)

(-) PROSITE Motifs  (1, 1)

Asymmetric Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1FUMARATE_LYASESPS00163 Fumarate lyases signature.PCAB_ACIAD276-285  1A:284-285
Biological Unit 1 (1, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1FUMARATE_LYASESPS00163 Fumarate lyases signature.PCAB_ACIAD276-285  4A:284-285

(-) Exons   (0, 0)

(no "Exon" information available for 1Q5N)

(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
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  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:431
 aligned with PCAB_ACIAD | Q59092 from UniProtKB/Swiss-Prot  Length:451

    Alignment length:444
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442    
           PCAB_ACIAD     3 QLYASLFYQRDVTEIFSDRALVSYMVEAEVALAQAQAQVGVIPQSAATVIERAAKTAIDKIDFDALATATGLAGNIAIPFVKQLTAIVKDADEDAARYVHWGATSQDILDTACILQCRDALAIVQNQVQQCYETALSQAQTYRHQVMMGRTWLQQALPITLGHKLARWASAFKRDLDRINAIKARVLVAQLGGAVGSLASLQDQGSIVVEAYAKQLKLGQTACTWHGERDRIVEIASVLGIITGNVGKMARDWSLMMQTEIAEVFEPTAKGRGGSSTMPHKRNPVAAASVLAAANRVPALMSSIYQSMVQEHERSLGAWHAEWLSLPEIFQLTAGALERTLDVLKGMEVNAENMHQNIECTHGLIMAEAVMMALAPHMGRLNAHHVVEAACKTAVAEQKHLKDIISQVDEVKQYFNPSQLDEIFKPESYLGNIQDQIDAVLQEA 446
               SCOP domains d1q5na_ A: 3-carboxy-cis,cis-muconate cycloisomerase (CMLE)                                                                                                                                                                                                                                                                                                                                                                                                  SCOP domains
               CATH domains ----1q5nA01 A:7-105 Fumarase/aspartase (N-terminal domain)                                             1q5nA02 A:106-361 Fumarase/aspartase (Central domain)                                                                                                                                                                                                           -1q5nA03 A:363-443 Fumarase/aspartase (C-terminal domain)                         --- CATH domains
               Pfam domains -------Lyase_1-1q5nA02 A:10-301                                                                                                                                                                                                                                                                            --------------------------------------------------------------ADSL_C-1q5nA01 A:364-443                                                        --- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhh...hhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...eeeeee..eeeeeeehhhhhhhhhhhhhhhhhhhhhhhhhhh..........hhhhh.hhhhhhhhhhhhhh...........hhhhhhhhhhhhhhhhhhhhhhhhhhhhh......ee...-------------..hhhhhhhhhhhhhhhhhhhhhhhh.........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhheehhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhh.hhhhhh..hhhhhhhhhhhhhhh.hhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------FUMARATE_L----------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1q5n A   3 QLYASLFYQRDVTEIFSDRALVSYMVEAEVALAQAQAQVGVIPQSAATVIQRAAKTAIDKIDFDALATATGLAGNIAIPFVKQLTAIVKDADEDAARYVHWGATSQDILDTACILQCRDALAIVQNQVQQCYETALSQAQTYRHQVMMGRTWLQQALPITLGHKLARWASAFKRDLDRINAIKARVLVAQLGGAVGSLASLQDQGSIVVEAYAKQLKLGQTACTWHGERDRIVEIASVLGIITGNVGKMARDWSLMMQTEIAEVFEPT-------------RNPVAAASVLAAANRVPALMSSIYQSMVQEHERSLGAWHAEWLSLPEIFQLTAGALERTLDVLKGMEVNAENMHQNIECTHGLIMAEAVMMALAPHMGRLNAHHVVEAACKTAVAEQKHLKDIISQVDEVKQYFNPSQLDEIFKPESYLGNIQDQIDAVLQEA 446
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       | -         - |     292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442    
                                                                                                                                                                                                                                                                                                     270           284
   Legend:   → Mismatch (orange background)
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  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
(-)
Class: All alpha proteins (14657)

(-) CATH Domains  (3, 3)

Asymmetric Unit
(-)
Class: Mainly Alpha (13335)

(-) Pfam Domains  (2, 2)

Asymmetric Unit
(-)
Clan: no clan defined [family: ADSL_C] (6)
(-)
Clan: no clan defined [family: Lyase_1] (27)

(-) Gene Ontology  (6, 6)

Asymmetric Unit(hide GO term definitions)
Chain A   (PCAB_ACIAD | Q59092)
molecular function
    GO:0047472    3-carboxy-cis,cis-muconate cycloisomerase activity    Catalysis of the reaction: 2-(carboxymethyl)-5-oxo-2,5-dihydro-2-furoate = 3-carboxy-cis,cis-muconate + H(+).
    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:0016853    isomerase activity    Catalysis of the geometric or structural changes within one molecule. Isomerase is the systematic name for any enzyme of EC class 5.
biological process
    GO:0019619    3,4-dihydroxybenzoate catabolic process    The chemical reactions and pathways resulting in the breakdown of 3,4-dihydroxybenzoate.
    GO:0019439    aromatic compound catabolic process    The chemical reactions and pathways resulting in the breakdown of aromatic compounds, any substance containing an aromatic carbon ring.
    GO:0042952    beta-ketoadipate pathway    A pathway of aromatic compound degradation by ortho-cleavage; one branch converts protocatechuate, derived from phenolic compounds, to beta-ketoadipate, and the other branch converts catechol, generated from various aromatic hydrocarbons, amino aromatics, and lignin monomers, also to beta-ketoadipate. Two additional steps accomplish the conversion of beta-ketoadipate to tricarboxylic acid cycle intermediates.

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