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(-) Description

Title :  CRYSTAL STRUCTURE OF CEL44A, GH FAMILY 44 ENDOGLUCANASE FROM CLOSTRIDIUM THERMOCELLUM
 
Authors :  Y. Kitao, S. Karita, N. Watanabe, K. Sakka, I. Tanaka
Date :  29 Mar 07  (Deposition) - 18 Sep 07  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.75
Chains :  Asym./Biol. Unit :  A
Keywords :  Tim-Barrel, Tim-Like Barrel, Beta-Sandwich, The Composite Domain Of Gh Family 5, 30, 39, 51, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  Y. Kitago, S. Karita, N. Watanabe, M. Kamiya, T. Aizawa, K. Sakka, I. Tanaka
Crystal Structure Of Cel44A, A Glycoside Hydrolase Family 4 Endoglucanase From Clostridium Thermocellum.
J. Biol. Chem. V. 282 35703 2007
PubMed-ID: 17905739  |  Reference-DOI: 10.1074/JBC.M706835200

(-) Compounds

Molecule 1 - ENDOGLUCANASE
    Chains: A
    EC Number: 3.2.1.4, 3.2.1.151
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PQE-30
    Expression System Strain: JM109
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: CELJ, CELJ-CEL44A
    Organism Scientific: CLOSTRIDIUM THERMOCELLUM
    Organism Taxid: 1515
    Strain: F1
    Synonym: GLYCOSIDE HYDROLASE, BETA-1,4-ENDOGLUCANASE

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (5, 7)

Asymmetric/Biological Unit (5, 7)
No.NameCountTypeFull Name
1CA1Ligand/IonCALCIUM ION
2CL1Ligand/IonCHLORIDE ION
3CTT1Ligand/IonBETA-D-GLUCOPYRANOSYL-(1->4)-BETA-D-GLUCOPYRANOSYL-(1->4)-BETA-D-GLUCOPYRANOSYL-(1->4)-BETA-D-GLUCOPYRANOSE
4GOL3Ligand/IonGLYCEROL
5ZN1Ligand/IonZINC ION

(-) Sites  (7, 7)

Asymmetric Unit (7, 7)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP A:35 , GLU A:126 , ALA A:395 , GLU A:401BINDING SITE FOR RESIDUE ZN A 700
2AC2SOFTWAREGLU A:54 , ASP A:150 , ASP A:153 , TYR A:155 , HOH A:900 , HOH A:929BINDING SITE FOR RESIDUE CA A 701
3AC3SOFTWAREGLU A:186 , PRO A:187 , ALA A:188 , LEU A:232 , TYR A:233BINDING SITE FOR RESIDUE CL A 702
4AC4SOFTWAREGLY A:45 , ASN A:46 , ARG A:47 , ALA A:60 , ASP A:63 , TRP A:64 , ASP A:69 , TYR A:71 , ASN A:185 , GLU A:186 , TYR A:285 , GLU A:359 , TRP A:392 , HOH A:943 , HOH A:1032 , HOH A:1101 , HOH A:1113BINDING SITE FOR RESIDUE CTT A 801
5AC5SOFTWAREGLU A:33 , LEU A:34 , LYS A:41 , LYS A:96 , ALA A:97 , HOH A:936 , HOH A:972 , HOH A:1006BINDING SITE FOR RESIDUE GOL A 600
6AC6SOFTWAREASN A:31 , GLN A:32 , ARG A:42 , PHE A:43 , GLY A:44 , ASP A:75 , HOH A:1149BINDING SITE FOR RESIDUE GOL A 601
7AC7SOFTWAREASP A:35 , GLU A:126 , ASN A:398 , ASN A:405 , SER A:484 , HOH A:942 , HOH A:1078 , HOH A:1082BINDING SITE FOR RESIDUE GOL A 602

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2EO7)

(-) Cis Peptide Bonds  (3, 3)

Asymmetric/Biological Unit
No.Residues
1Ala A:129 -Pro A:130
2Gly A:229 -Pro A:230
3Leu A:336 -Pro A:337

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2EO7)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2EO7)

(-) Exons   (0, 0)

(no "Exon" information available for 2EO7)

(-) 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:509
 aligned with P71140_CLOTM | P71140 from UniProtKB/TrEMBL  Length:1601

    Alignment length:509
                                   784       794       804       814       824       834       844       854       864       874       884       894       904       914       924       934       944       954       964       974       984       994      1004      1014      1024      1034      1044      1054      1064      1074      1084      1094      1104      1114      1124      1134      1144      1154      1164      1174      1184      1194      1204      1214      1224      1234      1244      1254      1264      1274         
        P71140_CLOTM    775 AKVVDIRIDTSAERKPISPYIYGSNQELDATVTAKRFGGNRTTGYNWENNFSNAGSDWLHYSDTYLLEDGGVPKGEWSTPASVVTTFHDKALSKNVPYTLITLQAAGYVSADGNGPVSQEETAPSSRWKEVKFEKGAPFSLTPDTEDDYVYMDEFVNYLVNKYGNASTPTGIKGYSIDNEPALWSHTHPRIHPDNVTAKELIEKSVALSKAVKKVDPYAEIFGPALYGFAAYETLQSAPDWGTEGEGYRWFIDYYLDKMKKASDEEGKRLLDVLDVHWYPEARGGGERICFGADPRNIETNKARLQAPRTLWDPTYIEDSWIGQWKKDFLPILPNLLDSIEKYYPGTKLAITEYDYGGGNHITGGIAQADVLGIFGKYGVYLATFWGDASNNYTEAGINLYTNYDGKGGKFGDTSVKCETSDIEVSSAYASIVGEDDSKLHIILLNKNYDQPTTFNFSIDSSKNYTIGNVWAFDRGSSNITQRTPIVNIKDNTFTYTVPALTACHIVLE 1283
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeeeeeee.....ee...eeeee.........eeee.hhhhh........ee.hhhh..eeehhhhhhh..hhhhh...hhhhhhhhhhhhhh...eeeeee....eee....ee.hhhhh.....eeeee................eeehhhhhhhhhhhhh.........eeee..hhhhhhhhh........hhhhhhhhhhhhhhhhhhhh...eeeeeee.hhhhhhhh....hhhhhh....hhhhhhhhhhhhhhhhhh.....eeeeee....ee..ee........hhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhhhhhh...eeeeeee......hhhhhhhhhhhhhhhhhhh..eeee.....hhhhhhhhhhhhh..........eeeeeee.....eeeeeeee..eeeeeeeeeee......eeeeeeee......eeeeeeee..eeeeeeeeee......eeeeee...eeeeeeee Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                2eo7 A    7 AKVVDIRIDTSAERKPISPYIYGSNQELDATVTAKRFGGNRTTGYNWENNFSNAGSDWLHYSDTYLLEDGGVPKGEWSTPASVVTTFHDKALSKNVPYTLITLQAAGYVSADGNGPVSQEETAPSSRWKEVKFEKGAPFSLTPDTEDDYVYMDEFVNYLVNKYGNASTPTGIKGYSIDNEPALWSHTHPRIHPDNVTAKELIEKSVALSKAVKKVDPYAEIFGPALYGFAAYETLQSAPDWGTEGEGYRWFIDYYLDKMKKASDEEGKRLLDVLDVHWYPEARGGGERICFGADPRNIETNKARLQAPRTLWDPTYIEDSWIGQWKKDFLPILPNLLDSIEKYYPGTKLAITEYDYGGGNHITGGIAQADVLGIFGKYGVYLATFWGDASNNYTEAGINLYTNYDGKGGKFGDTSVKCETSDIEVSSAYASIVGEDDSKLHIILLNKNYDQPTTFNFSIDSSKNYTIGNVWAFDRGSSNITQRTPIVNIKDNTFTYTVPALTACHIVLE  515
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346       356       366       376       386       396       406       416       426       436       446       456       466       476       486       496       506
   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  (0, 0)

(no "SCOP Domain" information available for 2EO7)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2EO7)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2EO7)

(-) Gene Ontology  (6, 6)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (P71140_CLOTM | P71140)
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:0008810    cellulase activity    Catalysis of the endohydrolysis of (1->4)-beta-D-glucosidic linkages in cellulose, lichenin and cereal beta-D-glucans.
    GO:0004553    hydrolase activity, hydrolyzing O-glycosyl compounds    Catalysis of the hydrolysis of any O-glycosyl bond.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
biological process
    GO:0005975    carbohydrate metabolic process    The chemical reactions and pathways involving carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y. Includes the formation of carbohydrate derivatives by the addition of a carbohydrate residue to another molecule.
    GO:0000272    polysaccharide catabolic process    The chemical reactions and pathways resulting in the breakdown of a polysaccharide, a polymer of many (typically more than 10) monosaccharide residues linked glycosidically.

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 Related Entries

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

UniProtKB/Swiss-Prot
        P71140_CLOTM | P71140: 1wmx 2c26 2e0p 2eex 2ej1 2eqd
UniProtKB/TrEMBL
        P71140_CLOTM | P71140: 2c24 2c4x 2e4t

(-) Related Entries Specified in the PDB File

2e0p WILD TYPE COMPLEXED WITH CELLOPENTAOSE
2e4t WILD TYPE, HIGHER RESOLUTION
2eex E186Q MUTANT COMPLEXED WITH CELLOPENTAOSE
2ej1 E186Q MUTANT COMPLEXED WITH CELLOHEXAOSE