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(-) Description

Title :  CRYSTAL STRUCTURE OF THE TRITICUM AESTIVUM XYLANASE INHIBITOR I
 
Authors :  S. Sansen, C. J. De Ranter, K. Gebruers, K. Brijs, C. M. Courtin, J. A. De A. Rabijns
Date :  06 May 04  (Deposition) - 28 Sep 04  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.70
Chains :  Asym./Biol. Unit :  X
Keywords :  Two Beta-Barrel Domain Structure, Hydrolase Inhibitor (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  S. Sansen, C. J. De Ranter, K. Gebruers, K. Brijs, C. M. Courtin, J. A. Delcour, A. Rabijns
Structural Basis For Inhibition Of Aspergillus Niger Xylanase By Triticum Aestivum Xylanase Inhibitor-I
J. Biol. Chem. V. 279 36022 2004
PubMed-ID: 15166216  |  Reference-DOI: 10.1074/JBC.M404212200

(-) Compounds

Molecule 1 - XYLANASE INHIBITOR
    Chains: X
    EC Number: 3.2.1.8
    Organism Common: BREAD WHEAT
    Organism Scientific: TRITICUM AESTIVUM
    Organism Taxid: 4565

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : X

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
1GOL1Ligand/IonGLYCEROL

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREARG X:135 , ARG X:163 , GLY X:181 , LYS X:364 , HOH X:1036 , HOH X:1255 , HOH X:1274BINDING SITE FOR RESIDUE GOL X 1001

(-) SS Bonds  (6, 6)

Asymmetric/Biological Unit
No.Residues
1X:39 -X:124
2X:50 -X:71
3X:55 -X:80
4X:66 -X:92
5X:167 -X:378
6X:282 -X:327

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Ala X:277 -Pro X:278

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1T6E)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1T6E)

(-) Exons   (0, 0)

(no "Exon" information available for 1T6E)

(-) 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 X from PDB  Type:PROTEIN  Length:362
 aligned with Q8H0K8_WHEAT | Q8H0K8 from UniProtKB/TrEMBL  Length:402

    Alignment length:381
                                    31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401 
         Q8H0K8_WHEAT    22 LPVLAPVTKDPATSLYTIPFHDGASLVLDVAGPLVWSTCDGGQPPAEIPCSSPTCLLANAYPAPGCPAPSCGSDKHDKPCTAYPYNPVSGACAAGSLSHTRFVANTTDGSKPVSKVNVGVLAACAPSKLLASLPRGSTGVAGLANSGLALPAQVASAQKVANRFLLCLPTGGPGVAIFGGGPVPWPQFTQSMPYTPLVTKGGSPAHYISARSIVVGDTRVPVPEGALATGGVMLSTRLPYVLLRPDVYRPLMDAFTKALAAQHANGAPVARAVEAVAPFGVCYDTKTLGNNLGGYAVPNVQLGLDGGSDWTMTGKNSMVDVKQGTACVAFVEMKGVAAGDGRAPAVILGGAQMEDFVLDFDMEKKRLGFSRLPHFTGCGGL 402
               SCOP domains d1t6ex_ X: Xylanase inhibitor TAXI-I                                                                                                                                                                                                                                                                                                                                                          SCOP domains
               CATH domains 1t6eX01 X:1-180 Acid Proteases                                                                                                                                                      1t6eX02 X:181-381 Acid Proteases                                                                                                                                                                          CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeee......eeeeee..eeeeee.....eee..............hhhhhhhhh...........------...ee............eeeeeeeeeeeee....eeeeeeeeeeeee.hhhhhh.....eeeeee......hhhhhhhhhhh...eeeee......eeeee......hhhhhh...eee..........ee.eeeeee..ee............eee......eeehhhhhhhhhhhhhhhhhhh-------..ee........eee.hhh.ee..ee....eeeee....eeeehhhhheeeee..eeee.eee....------...eeehhhhhh.eeeeee....eeeeee.......... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1t6e X   1 LPVLAPVTKDPATSLYTIPFHDGASLVLDVAGPLVWSTCDGGQPPAEIPCSSPTCLLANAYPAPGCPAPSC------KPCTAYPYNPVSGACAAGSLSHTRFVANTTDGSKPVSKVNVGVLAACAPSKLLASLPRGSTGVAGLANSGLALPAQVASAQKVANRFLLCLPTGGPGVAIFGGGPVPWPQFTQSMPYTPLVTKGGSPAHYISARSIVVGDTRVPVPEGALATGGVMLSTRLPYVLLRPDVYRPLMDAFTKALAAQ-------ARAVEAVAPFGVCYDTKTLGNNLGGYAVPNVQLGLDGGSDWTMTGKNSMVDVKQGTACVAFVEMKGV------APAVILGGAQMEDFVLDFDMEKKRLGFSRLPHFTGCGGL 381
                                    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       310       320       330     |   -  |    350       360       370       380 
                                                                                                 71     78                                                                                                                                                                                     262     270                                                               336    343
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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: All beta proteins (24004)

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1T6E)

(-) Gene Ontology  (6, 6)

Asymmetric/Biological Unit(hide GO term definitions)
Chain X   (Q8H0K8_WHEAT | Q8H0K8)
molecular function
    GO:0004190    aspartic-type endopeptidase activity    Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a mechanism in which a water molecule bound by the side chains of aspartic residues at the active center acts as a nucleophile.
    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.
biological process
    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:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
    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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 Related Entries

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UniProtKB/TrEMBL
        Q8H0K8_WHEAT | Q8H0K8: 1t6g 2b42

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