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(-) Description

Title :  1.11 A ATOMIC RESOLUTION STRUCTURE OF A THERMOSTABLE XYLANASE FROM THERMOASCUS AURANTIACUS
 
Authors :  R. Natesh, S. Ramakumar, M. A. Viswamitra
Date :  04 Feb 01  (Deposition) - 07 Jan 03  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.11
Chains :  Asym./Biol. Unit :  A
Keywords :  Xylan Degradation, Hydrolase, Glycosidase, Enzyme, Atomic Resolution, Room Temperature, 1, 4-Beta-Xylan Xylanohydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  R. Natesh, K. Manikandan, P. Bhanumoorthy, M. A. Viswamitra, S. Ramakumar
Thermostable Xylanase From Thermoascus Aurantiacus At Ultrahigh Resolution (0. 89 A) At 100 K And Atomic Resolution (1. 11 A) At 293 K Refined Anisotropically To Small-Molecule Accuracy.
Acta Crystallogr. , Sect. D V. 59 105 2003
PubMed-ID: 12499546  |  Reference-DOI: 10.1107/S0907444902020164
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - ENDO-1,4-BETA-XYLANASE
    Chains: A
    EC Number: 3.2.1.8
    Organism Scientific: THERMOASCUS AURANTIACUS
    Organism Taxid: 5087
    Strain: STRAIN ISOLATED FROM LOCAL INDIAN SOIL
    Synonym: XYLANASE, 1,4-BETA-D-XYLAN XYLANOHYDROLASE

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
1PCA1Mod. Amino AcidPYROGLUTAMIC ACID

(-) Sites  (0, 0)

(no "Site" information available for 1I1X)

(-) SS Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1A:255 -A:261

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1His A:83 -Thr A:84

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1I1X)

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1GH10_2PS51760 Glycosyl hydrolases family 10 (GH10) domain profile.XYNA_THEAU29-326  1A:3-299
2GH10_1PS00591 Glycosyl hydrolases family 10 (GH10) active site.XYNA_THEAU256-266  1A:230-240

(-) Exons   (0, 0)

(no "Exon" information available for 1I1X)

(-) 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:302
 aligned with XYNA_THEAU | P23360 from UniProtKB/Swiss-Prot  Length:329

    Alignment length:302
                                    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  
           XYNA_THEAU    27 QAAQSVDQLIKARGKVYFGVATDQNRLTTGKNAAIIQADFGQVTPENSMKWDATEPSQGNFNFAGADYLVNWAQQNGKLIRGHTLVWHSQLPSWVSSITDKNTLTNVMKNHITTLMTRYKGKIRAWDVVNEAFNEDGSLRQTVFLNVIGEDYIPIAFQTARAADPNAKLYINDYNLDSASYPKTQAIVNRVKQWRAAGVPIDGIGSQTHLSAGQGAGVLQALPLLASAGTPEVAITELDVAGASPTDYVNVVNACLNVQSCVGITVWGVADPDSWRASTTPLLFDGNFNPKPAYNAIVQDLQ 328
               SCOP domains d1i1xa_ A: Xylanase A, catalytic core                                                                                                                                                                                                                                                                          SCOP domains
               CATH domains -1i1xA00 A:2-302 Glycosidases                                                                                                                                                                                                                                                                                  CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhhhhh...eeeeeehhhhhh..hhhhhhhhhh.eeee....hhhhhh.......hhhhhhhhhhhhhhh.eeeeeeee.....hhhhhh..hhhhhhhhhhhhhhhhhhhh.....eeeeee...........hhhhhhh..hhhhhhhhhhhhhh...eeeeee.......hhhhhhhhhhhhhhhhh.....eeee..ee...hhhhhhhhhhhhhh....eeeeeeeee...hhhhhhhhhhhhhhh..eeeeee....hhhh.hhhhh..........hhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) --GH10_2  PDB: A:3-299 UniProt: 29-326                                                                                                                                                                                                                                                                      -- PROSITE (1)
                PROSITE (2) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------GH10_1     -------------------------------------------------------------- PROSITE (2)
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1i1x A   1 xAAQSVDQLIKARGKVYFGVATDQNRLTTGKNAAIIQANFGQVTPENSMKWDATEPSQGNFNFAGADYLVNWAQQNGKLIRGHTLVWHSQLPSWVSSITDKNTLTNVMKNHITTLMTRYKGKIRAWDVVNEAFNEDGSLRQTVFLNVIGEDYIPIAFQTARAADPNAKLYINDYNLDSASYPKTQAIVNRVKKWRAAGVPIDGIGSQTHLSAGQGASVLQALPLLASAGTPEVAITELDVAGASSTDYVNVVNACLNVSSCVGITVWGVADPDSWRASTTPLLFDGNFNPKPAYNAIVQNLQ 302
                            |       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       270       280       290       300  
                            |                                                                                                                                                                                                                                                                                                             
                            1-PCA
   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/Biological Unit
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1I1X)

(-) Gene Ontology  (8, 8)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (XYNA_THEAU | P23360)
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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  1i1x
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 Related Entries

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

UniProtKB/Swiss-Prot
        XYNA_THEAU | P23360: 1gok 1gom 1goo 1goq 1gor 1i1w 1k6a 1tux 2bnj 3nyd 3o2l 4bs0

(-) Related Entries Specified in the PDB File

1i1w 1I1W IS SAME PROTEIN STRUCTURE SOLVED AT 0.89 A CRYO TEMPERATURE WITH GLYCEROL AS CRYO PROTECTANT.
1tux 1TUX IS THE SAME PROTEIN FROM SAME STRAIN SOLVED AT 1.8 A RESOLUTION.