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(-) Description

Title :  CRYSTAL STRUCTURE OF TRIOSEPHOSPHATE ISOMERASE FROM ENTAMOEBA HISTOLYTICA
 
Authors :  A. Rodriguez-Romero, A. Hernandez-Santoyo, D. A. Fernandez-Velasco
Date :  16 Jul 02  (Deposition) - 12 Oct 02  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.50
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Asymmetry, Entamoeba Histolytica, Monomer Stability, Triosephosphate Isomerase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  A. Rodriguez-Romero, A. Hernandez-Santoyo, L. Del Pozo-Yauner, A. Kornhauser, D. A. Fernandez-Velasco
Structure And Inactivation Of Triosephosphate Isomerase From Entamoeba Histolytica
J. Mol. Biol. V. 322 669 2002
PubMed-ID: 12270704  |  Reference-DOI: 10.1016/S0022-2836(02)00809-4
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - TRIOSEPHOSPHATE ISOMERASE
    Chains: A, B
    EC Number: 5.3.1.1
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PRSET
    Expression System Strain: TGI
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Organism Scientific: ENTAMOEBA HISTOLYTICA
    Organism Taxid: 5759
    Synonym: TIM, TPI

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 1M6J)

(-) Sites  (0, 0)

(no "Site" information available for 1M6J)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1M6J)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1M6J)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1M6J)

(-) PROSITE Motifs  (2, 4)

Asymmetric/Biological Unit (2, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1TIM_2PS51440 Triosephosphate isomerase (TIM) family profile.TPIS_ENTHI5-256
 		  2A:5-256
B:5-256
2TIM_1PS00171 Triosephosphate isomerase active site.TPIS_ENTHI172-182
 		  2A:172-182
B:172-182

(-) Exons   (0, 0)

(no "Exon" information available for 1M6J)

(-) Sequences/Alignments

Asymmetric/Biological 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:260
 aligned with TPIS_ENTHI | O02611 from UniProtKB/Swiss-Prot  Length:261

    Alignment length:260
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261
           TPIS_ENTHI     2 GAGKFVVGGNWKCNGTLASIETLTKGVAASVDAELAKKVEVIVGVPFIYIPKVQQILAGEANGANILVSAENAWTKSGAYTGEVHVGMLVDCQVPYVILGHSERRQIFHESNEQVAEKVKVAIDAGLKVIACIGETEAQRIANQTEEVVAAQLKAINNAISKEAWKNIILAYEPVWAIGTGKTATPDQAQEVHQYIRKWMTENISKEVAEATRIQYGGSVNPANCNELAKKADIDGFLVGGASLDAAKFKTIINSVSEKL 261
               SCOP domains d1m6ja_ A: Triosephosphate isomerase                                                                                                                                                                                                                                 SCOP domains
               CATH domains 1m6jA00 A:2-261 Aldolase class I                                                                                                                                                                                                                                     CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeeeee.....hhhhhhhhhhhhhhhhhhhhhh.eeeeeeehhhhhhhhhhhhhh..hhh.eeeee..............hhhhhhhh...eeee.hhhhhhhh..hhhhhhhhhhhhhhhh.eeeeee..hhhhhhh.hhhhhhhhhhhhhhhhh.hhhhh.eeeee.hhhhh......hhhhhhhhhhhhhhhhhhhhhhhhhhhh.eee.......hhhhhhh.....eeeehhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ---TIM_2  PDB: A:5-256 UniProt: 5-256                                                                                                                                                                                                                          ----- PROSITE (1)
                PROSITE (2) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------TIM_1      ------------------------------------------------------------------------------- PROSITE (2)
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1m6j A   2 GAGKFVVGGNWKCNGTLASIETLTKGVAASVDAELAKKVEVIVGVPFIYIPKVQQILAGEANGANILVSAENAWTKSGAYTGEVHVGMLVDCQVPYVILGHSERRQIFHESNEQVAEKVKVAIDAGLKVIACIGETEAQRIANQTEEVVAAQLKAINNAISKEAWKNIILAYEPVWAIGTGKTATPDQAQEVHQYIRKWMTENISKEVAEATRIQYGGSVNPANCNELAKKADIDGFLVGGASLDAAKFKTIINSVSEKL 261
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261


Chain B from PDB  Type:PROTEIN  Length:260
 aligned with TPIS_ENTHI | O02611 from UniProtKB/Swiss-Prot  Length:261

    Alignment length:260
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261
           TPIS_ENTHI     2 GAGKFVVGGNWKCNGTLASIETLTKGVAASVDAELAKKVEVIVGVPFIYIPKVQQILAGEANGANILVSAENAWTKSGAYTGEVHVGMLVDCQVPYVILGHSERRQIFHESNEQVAEKVKVAIDAGLKVIACIGETEAQRIANQTEEVVAAQLKAINNAISKEAWKNIILAYEPVWAIGTGKTATPDQAQEVHQYIRKWMTENISKEVAEATRIQYGGSVNPANCNELAKKADIDGFLVGGASLDAAKFKTIINSVSEKL 261
               SCOP domains d1m6jb_ B: Triosephosphate isomerase                                                                                                                                                                                                                                 SCOP domains
               CATH domains 1m6jB00 B:2-261 Aldolase class I                                                                                                                                                                                                                                     CATH domains
           Pfam domains (1) ----TIM-1m6jB01 B:6-254                                                                                                                                                                                                                                      ------- Pfam domains (1)
           Pfam domains (2) ----TIM-1m6jB02 B:6-254                                                                                                                                                                                                                                      ------- Pfam domains (2)
         Sec.struct. author .....eeeee.....hhhhhhhhhhhhhhh.hhhhhh..eeeeeehhhhhhhhhhhhhh..hhh.eeeee..............hhhhhhhh...eeee.hhhhhhhh..hhhhhhhhhhhhhhh..eeeeee..hhhhhhh.hhhhhhhhhhhhhhhhh.hhhhh.eeeee.hhhhh......hhhhhhhhhhhhhhhhhhhhhhhhhhhh.eee.......hhhhhhh.....eeeehhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ---TIM_2  PDB: B:5-256 UniProt: 5-256                                                                                                                                                                                                                          ----- PROSITE (1)
                PROSITE (2) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------TIM_1      ------------------------------------------------------------------------------- PROSITE (2)
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1m6j B   2 GAGKFVVGGNWKCNGTLASIETLTKGVAASVDAELAKKVEVIVGVPFIYIPKVQQILAGEANGANILVSAENAWTKSGAYTGEVHVGMLVDCQVPYVILGHSERRQIFHESNEQVAEKVKVAIDAGLKVIACIGETEAQRIANQTEEVVAAQLKAINNAISKEAWKNIILAYEPVWAIGTGKTATPDQAQEVHQYIRKWMTENISKEVAEATRIQYGGSVNPANCNELAKKADIDGFLVGGASLDAAKFKTIINSVSEKL 261
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261
   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, 2)

Asymmetric/Biological Unit
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Clan: TIM_barrel (694)

(-) Gene Ontology  (7, 7)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (TPIS_ENTHI | O02611)
molecular function
    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.
    GO:0004807    triose-phosphate isomerase activity    Catalysis of the reaction: D-glyceraldehyde 3-phosphate = glycerone phosphate.
biological process
    GO:0006094    gluconeogenesis    The formation of glucose from noncarbohydrate precursors, such as pyruvate, amino acids and glycerol.
    GO:0006096    glycolytic process    The chemical reactions and pathways resulting in the breakdown of a carbohydrate into pyruvate, with the concomitant production of a small amount of ATP and the reduction of NAD(P) to NAD(P)H. Glycolysis begins with the metabolism of a carbohydrate to generate products that can enter the pathway and ends with the production of pyruvate. Pyruvate may be converted to acetyl-coenzyme A, ethanol, lactate, or other small molecules.
    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:0006098    pentose-phosphate shunt    The glucose-6-phosphate catabolic process in which, coupled to NADPH synthesis, glucose-6-P is oxidized with the formation of carbon dioxide (CO2) and ribulose 5-phosphate; ribulose 5-P then enters a series of reactions interconverting sugar phosphates. The pentose phosphate pathway is a major source of reducing equivalents for biosynthesis reactions and is also important for the conversion of hexoses to pentoses.

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