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(-) Description

Title :  CRYSTAL STRUCTURE OF MICHAELIS COMPLEX OF CATALYTIC-SITE MUTANT XYLANASE FROM STREPTOMYCES OLIVACEOVIRIDIS E-86
 
Authors :  R. Suzuki, A. Kuno, Z. Fujimoto, S. Ito, S. I. Kawahara, S. Kaneko, T. Has K. Taira
Date :  02 Sep 05  (Deposition) - 10 Oct 06  (Release) - 15 Feb 12  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.85
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Keywords :  Tim-Barrel, Retaining Enzyme, Catalytic-Site Mutant, Chemical Rescue, Michaelis Complex, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  R. Suzuki, Z. Fujimoto, S. Ito, S. Kawahara, S. Kaneko, K. Taira, T. Hasegawa, A. Kuno
Crystallographic Snapshots Of An Entire Reaction Cycle For Retaining Xylanase From Streptomyces Olivaceoviridis E-86
J. Biochem. V. 146 61 2009
PubMed-ID: 19279191  |  Reference-DOI: 10.1093/JB/MVP047
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - ENDO-1,4-BETA-D-XYLANASE
    ChainsA, B
    EC Number3.2.1.8
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPQE60
    Expression System StrainJM109
    Expression System Taxid562
    Expression System Vector TypePLASMID
    MutationYES
    Organism ScientificSTREPTOMYCES OLIVACEOVIRIDIS
    Organism Taxid1921
    StrainE-86
    SynonymGLYCOSIDE HYDROLASE FAMILY 10 XYLANASE

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit AB
Biological Unit 1 (1x)A 
Biological Unit 2 (1x) B

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 13)

Asymmetric Unit (3, 13)
No.NameCountTypeFull Name
1GOL7Ligand/IonGLYCEROL
2NPO2Ligand/IonP-NITROPHENOL
3XYS4Ligand/IonXYLOPYRANOSE
Biological Unit 1 (3, 6)
No.NameCountTypeFull Name
1GOL3Ligand/IonGLYCEROL
2NPO1Ligand/IonP-NITROPHENOL
3XYS2Ligand/IonXYLOPYRANOSE
Biological Unit 2 (3, 7)
No.NameCountTypeFull Name
1GOL4Ligand/IonGLYCEROL
2NPO1Ligand/IonP-NITROPHENOL
3XYS2Ligand/IonXYLOPYRANOSE

(-) Sites  (13, 13)

Asymmetric Unit (13, 13)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREGLU A:44 , ASN A:45 , LYS A:48 , GLN A:88 , TRP A:266 , TRP A:274 , XYS A:452 , HOH A:1292 , HOH A:1326BINDING SITE FOR RESIDUE XYS A 451
02AC2SOFTWARELYS A:48 , HIS A:81 , HIS A:128 , GLN A:205 , HIS A:207 , GLU A:236 , TRP A:266 , XYS A:451 , NPO A:453BINDING SITE FOR RESIDUE XYS A 452
03AC3SOFTWAREGLU B:544 , ASN B:545 , LYS B:548 , GLN B:588 , TRP B:766 , TRP B:774 , XYS B:952 , HOH B:1109 , HOH B:1322BINDING SITE FOR RESIDUE XYS B 951
04AC4SOFTWARELYS B:548 , HIS B:581 , HIS B:628 , GLN B:705 , HIS B:707 , GLU B:736 , TRP B:766 , TRP B:774 , XYS B:951 , NPO B:953BINDING SITE FOR RESIDUE XYS B 952
05AC5SOFTWAREHIS A:128 , GLN A:205 , TRP A:274 , ARG A:275 , XYS A:452BINDING SITE FOR RESIDUE NPO A 453
06AC6SOFTWARETYR B:672 , HIS B:707 , ARG B:775 , XYS B:952 , HOH B:1236 , HOH B:1290BINDING SITE FOR RESIDUE NPO B 953
07AC7SOFTWARETYR A:214 , ASN A:215 , SER A:216 , THR B:831 , THR B:832 , ASP B:833 , HOH B:1261 , HOH B:1352BINDING SITE FOR RESIDUE GOL B 971
08AC8SOFTWAREALA A:7 , SER A:35 , PHE A:38 , ASN A:39 , ASN A:74 , GLY A:75 , LYS A:76 , HOH A:992 , HOH B:1046 , HOH B:1072 , HOH B:1187BINDING SITE FOR RESIDUE GOL A 972
09AC9SOFTWAREASP A:408 , ALA A:409 , GLY A:411 , GLN A:421 , TYR A:423 , ASN A:430 , HOH A:1043 , HOH A:1162BINDING SITE FOR RESIDUE GOL A 973
10BC1SOFTWAREALA A:355 , GLU A:357 , TRP A:383 , GLY A:384 , GLU B:857 , CYS B:882 , TRP B:883 , GLY B:884 , HOH B:1228BINDING SITE FOR RESIDUE GOL B 974
11BC2SOFTWAREASP A:325 , PRO A:327 , ASN A:328 , GLN A:338 , TYR A:340 , HIS A:343 , ASN A:347 , HOH A:1125BINDING SITE FOR RESIDUE GOL A 975
12BC3SOFTWAREASP B:825 , ASN B:828 , GLN B:838 , TYR B:840 , HIS B:843 , ASN B:847 , HOH B:1368BINDING SITE FOR RESIDUE GOL B 976
13BC4SOFTWAREASP B:908 , ALA B:909 , VAL B:910 , GLY B:911 , GLY B:912 , GLN B:921 , TYR B:923 , ASN B:930BINDING SITE FOR RESIDUE GOL B 977

(-) SS Bonds  (10, 10)

Asymmetric Unit
No.Residues
1A:168 -A:201
2A:254 -A:260
3A:323 -A:342
4A:365 -A:382
5A:406 -A:425
6B:668 -B:701
7B:754 -B:760
8B:823 -B:842
9B:865 -B:882
10B:906 -B:925

(-) Cis Peptide Bonds  (2, 2)

Asymmetric Unit
No.Residues
1His A:81 -Thr A:82
2His B:581 -Thr B:582

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2D20)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2D20)

(-) Exons   (0, 0)

(no "Exon" information available for 2D20)

(-) Sequences/Alignments

Asymmetric 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:427
 aligned with Q7SI98_STROI | Q7SI98 from UniProtKB/TrEMBL  Length:436

    Alignment length:436
                                    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       340       350       360       370       380       390       400       410       420       430      
         Q7SI98_STROI     1 AESTLGAAAAQSGRYFGTAIASGKLGDSAYTTIASREFNMVTAENEMKIDATEPQRGQFNFSAGDRVYNWAVQNGKQVRGHTLAWHSQQPGWMQSLSGSTLRQAMIDHINGVMGHYKGKIAQWDVVNEAFSDDGSGGRRDSNLQRTGNDWIEVAFRTARAADPAAKLCYNDYNIENWTWAKTQGVYNMVRDFKQRGVPIDCVGFQSHFNSGSPYNSNFRTTLQNFAALGVDVAITELDIQGASSSTYAAVTNDCLAVSRCLGITVWGVRDTDSWRSGDTPLLFNGDGSKKAAYTAVLNALNGGSSTPPPSGGGQIKGVGSGRCLDVPNASTTDGTQVQLYDCHSATNQQWTYTDAGELRVYGDKCLDAAGTGNGTKVQIYSCWGGDNQKWRLNSDGSIVGVQSGLCLDAVGGGTANGTLIQLYSCSNGSNQRWTRT 436
               SCOP domains d2d20a1 A:1-301 automated matches                                                                                                                                                                                                                                                                            --------------------d2d20a2 A:322-436 automated matches                                                                                 SCOP domains
               CATH domains 2d20A01 A:1-300 Glycosidases                                                                                                                                                                                                                                                                                ------------2d20A02 A:313-434  [code=2.80.10.50, no name defined]                                                                     -- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhh...eeeeeehhhhh.hhhhhhhhhhhh.eeee....hhhhhh.......hhhhhhhhhhhhhh..eeeeeeee.....hhhhhh.hhhhhhhhhhhhhhhhhhhh.....eeeeee...............hhhhh.hhhhhhhhhhhhhh...eeeeee.......hhhhhhhhhhhhhhhhhh....eeee..ee........hhhhhhhhhhh...eeeeeeeee...hhhhhhhhhhhhhh...eeeeee...hhhhh.hhhhh..........hhhhhhhhhhhh..---------..eee.....eeehhhhh....ee.eee....hhhhh.ee.....eee...eeeee........eeeee...hhhh.eee.....eee.....eeee.hhh......eeee....hhhh.eee. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2d20 A   1 AESTLGAAAAQSGRYFGTAIASGKLGDSAYTTIASREFNMVTAENEMKIDATEPQRGQFNFSAGDRVYNWAVQNGKQVRGHTLAWHSQQPGWMQSLSGSTLRQAMIDHINGVMGHYKGKIAQWDVVSHAFSDDGSGGRRDSNLQRTGNDWIEVAFRTARAADPAAKLCYNDYNIENWTWAKTQGVYNMVRDFKQRGVPIDCVGFQSHFNSGSPYNSNFRTTLQNFAALGVDVAITELDIQGASSSTYAAVTNDCLAVSRCLGITVWGVRDTDSWRSGDTPLLFNGDGSKKAAYTAVLNALNGG---------GQIKGVGSGRCLDVPNASTTDGTQVQLYDCHSATNQQWTYTDAGELRVYGDKCLDAAGTGNGTKVQIYSCWGGDNQKWRLNSDGSIVGVQSGLCLDAVGGGTANGTLIQLYSCSNGSNQRWTRT 436
                                    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  |      -  |    320       330       340       350       360       370       380       390       400       410       420       430      
                                                                                                                                                                                                                                                                                                                                        303       313                                                                                                                           

Chain B from PDB  Type:PROTEIN  Length:427
 aligned with Q7SI98_STROI | Q7SI98 from UniProtKB/TrEMBL  Length:436

    Alignment length:436
                                    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       340       350       360       370       380       390       400       410       420       430      
         Q7SI98_STROI     1 AESTLGAAAAQSGRYFGTAIASGKLGDSAYTTIASREFNMVTAENEMKIDATEPQRGQFNFSAGDRVYNWAVQNGKQVRGHTLAWHSQQPGWMQSLSGSTLRQAMIDHINGVMGHYKGKIAQWDVVNEAFSDDGSGGRRDSNLQRTGNDWIEVAFRTARAADPAAKLCYNDYNIENWTWAKTQGVYNMVRDFKQRGVPIDCVGFQSHFNSGSPYNSNFRTTLQNFAALGVDVAITELDIQGASSSTYAAVTNDCLAVSRCLGITVWGVRDTDSWRSGDTPLLFNGDGSKKAAYTAVLNALNGGSSTPPPSGGGQIKGVGSGRCLDVPNASTTDGTQVQLYDCHSATNQQWTYTDAGELRVYGDKCLDAAGTGNGTKVQIYSCWGGDNQKWRLNSDGSIVGVQSGLCLDAVGGGTANGTLIQLYSCSNGSNQRWTRT 436
               SCOP domains d2d20b1 B:501-801 automated matches                                                                                                                                                                                                                                                                          --------------------d2d20b2 B:822-936 automated matches                                                                                 SCOP domains
               CATH domains 2d20B01 B:501-800 Glycosidases                                                                                                                                                                                                                                                                              ------------2d20B02 B:813-934  [code=2.80.10.50, no name defined]                                                                     -- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhh...eeeeeehhhhh.hhhhhhhhhhhh.eeee....hhhhhh.......hhhhhhhhhhhhhh..eeeeeeee.....hhhhhh.hhhhhhhhhhhhhhhhhhhh.....eeeeee.............hhhhhh..hhhhhhhhhhhhhh...eeeeee.......hhhhhhhhhhhhhhhhhh....eeee..ee........hhhhhhhhhhh...eeeeeeeee...hhhhhhhhhhhhhhh..eeeeee...hhhhh.hhhhh..........hhhhhhhhhhhh..---------.eeee.....eeehhhhh.......eee....hhhhh.ee.....eee...eeeee........eeeee...hhhh.eee.....eee.....eeee.hhh......eeee....hhhh.eeee Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2d20 B 501 AESTLGAAAAQSGRYFGTAIASGKLGDSAYTTIASREFNMVTAENEMKIDATEPQRGQFNFSAGDRVYNWAVQNGKQVRGHTLAWHSQQPGWMQSLSGSTLRQAMIDHINGVMGHYKGKIAQWDVVSHAFSDDGSGGRRDSNLQRTGNDWIEVAFRTARAADPAAKLCYNDYNIENWTWAKTQGVYNMVRDFKQRGVPIDCVGFQSHFNSGSPYNSNFRTTLQNFAALGVDVAITELDIQGASSSTYAAVTNDCLAVSRCLGITVWGVRDTDSWRSGDTPLLFNGDGSKKAAYTAVLNALNGG---------GQIKGVGSGRCLDVPNASTTDGTQVQLYDCHSATNQQWTYTDAGELRVYGDKCLDAAGTGNGTKVQIYSCWGGDNQKWRLNSDGSIVGVQSGLCLDAVGGGTANGTLIQLYSCSNGSNQRWTRT 936
                                   510       520       530       540       550       560       570       580       590       600       610       620       630       640       650       660       670       680       690       700       710       720       730       740       750       760       770       780       790       800  |      -  |    820       830       840       850       860       870       880       890       900       910       920       930      
                                                                                                                                                                                                                                                                                                                                        803       813                                                                                                                           

   Legend:   → Mismatch (orange background)
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    → 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  (2, 4)

Asymmetric Unit

(-) CATH Domains  (2, 4)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2D20)

(-) Gene Ontology  (7, 7)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (Q7SI98_STROI | Q7SI98)
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.

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 Related Entries

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

UniProtKB/TrEMBL
        Q7SI98_STROI | Q7SI981isv 1isw 1isx 1isy 1isz 1it0 1v6u 1v6v 1v6w 1v6x 1v6y 1xyf 2d1z 2d22 2d23 2d24 2g3i 2g3j 2g4f

(-) Related Entries Specified in the PDB File

1isw THE WILD-TYPE ENZYME IN COMPLEX WITH XYLOBIOSE.
1isx THE WILD-TYPE ENZYME IN COMPLEX WITH XYLOTRIOSE.
1xyf THE WILD-TYPE ENZYME OF SEA.
2d1z FREE-MODE OF THE SAME PROTEIN.
2d22
2d23
2d24