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(-) Description

Title :  HIGH-RESOLUTION STRUCTURES OF XYLANASES FROM B. CIRCULANS AND T. HARZIANUM IDENTIFY A NEW FOLDING PATTERN AND IMPLICATIONS FOR THE ATOMIC BASIS OF THE CATALYSIS
 
Authors :  R. L. Campbell, D. R. Rose
Date :  01 Jun 94  (Deposition) - 20 Dec 94  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym./Biol. Unit :  A
Keywords :  Glycosidase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  R. L. Campbell, D. R. Rose, W. W. Wakarchuk, R. J. To, W. Sung, M. Yaguchi
High-Resolution Structures Of Xylanases From B. Circulans And T. Harzianum Identify A New Folding Pattern And Implications For The Atomic Basis Of The Catalysis
To Be Published
PubMed: search
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - XYLANASE
    Chains: A
    EC Number: 3.2.1.8
    Engineered: YES
    Organism Scientific: HYPOCREA LIXII
    Organism Taxid: 5544

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

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

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AS1AUTHORGLU A:86 , GLU A:177CATALYTIC ACIDIC RESIDUES
2AS2AUTHORTYR A:14 , TYR A:77 , TYR A:88 , TYR A:171GROUP OF TYROSINE RESIDUES IN THE ACTIVE SITE THAT APPEAR TO BE IMPORTANT FOR SUBSTRATE BINDING

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1Gln A:52 -Pro A:53
2Asn A:82 -Pro A:83

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (3, 3)

Asymmetric/Biological Unit (3, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1GH11_3PS51761 Glycosyl hydrolases family 11 (GH11) domain profile.XYN_TRIHA1-190  1A:1-190
2GH11_1PS00776 Glycosyl hydrolases family 11 (GH11) active site signature 1.XYN_TRIHA83-93  1A:83-93
3GH11_2PS00777 Glycosyl hydrolases family 11 (GH11) active site signature 2.XYN_TRIHA174-185  1A:174-185

(-) Exons   (0, 0)

(no "Exon" information available for 1XND)

(-) 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:190
 aligned with XYN_TRIHA | P48793 from UniProtKB/Swiss-Prot  Length:190

    Alignment length:190
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190
            XYN_TRIHA     1 QTIGPGTGYSNGYYYSYWNDGHAGVTYTNGGGGSFTVNWSNSGNFVAGKGWQPGTKNKVINFSGSYNPNGNSYLSIYGWSRNPLIEYYIVENFGTYNPSTGATKLGEVTSDGSVYDIYRTQRVNQPSIIGTATFYQYWSVRRNHRSSGSVNTANHFNAWASHGLTLGTMDYQIVAVEGYFSSGSASITVS 190
               SCOP domains d1xnda_ A: Xylanase II                                                                                                                                                                         SCOP domains
               CATH domains 1xndA00 A:1-190  [code=2.60.120.180, no name defined]                                                                                                                                          CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....eeeee..eeeeeee.....eeeeee...eeeeeee...eeeee.........eeeeeeeeeeee..eee.eeeeee...eeeee..eee...........eeeee..eeeeeeeeeee..........eeeeeee........eee.hhhhhhhh.......eeeeee.eeeee...eeeeeee. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) GH11_3  PDB: A:1-190 UniProt: 1-190                                                                                                                                                            PROSITE (1)
                PROSITE (2) ----------------------------------------------------------------------------------GH11_1     --------------------------------------------------------------------------------GH11_2      ----- PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1xnd A   1 QTIGPGTGYSNGYYYSYWNDGHAGVTYTNGGGGSFTVNWSNSGNFVAGKGWQPGTKNKVINFSGSYNPNGNSYLSIYGWSRNPLIEYYIVENFGTYNPSTGATKLGEVTSDGSVYDIYRTQRVNQPSIIGTATFYQYWSVRRNHRSSGSVNTANHFNAWASHGLTLGTMDYQIVAVEGYFSSGSASITVS 190
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190
   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/Biological Unit
(-)
Class: All beta proteins (24004)

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (8, 8)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (XYN_TRIHA | P48793)
molecular function
    GO:0031176    endo-1,4-beta-xylanase activity    Catalysis of the endohydrolysis of (1->4)-beta-D-xylosidic linkages in xylans.
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0016798    hydrolase activity, acting on glycosyl bonds    Catalysis of the hydrolysis of any glycosyl bond.
    GO:0004553    hydrolase activity, hydrolyzing O-glycosyl compounds    Catalysis of the hydrolysis of any O-glycosyl bond.
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: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: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.
    GO:0045493    xylan catabolic process    The chemical reactions and pathways resulting in the breakdown of xylan, a polymer containing a beta-1,4-linked D-xylose backbone.

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