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(-) Description

Title :  CRYSTAL STRUCTURE OF STREPTOMYCES DIASTATICUS NO.7 STRAIN M1033 XYLOSE ISOMERASE AT 1.9 A RESOLUTION WITH PSEUDO-I222 SPACE GROUP
 
Authors :  L. Niu, M. Teng, X. Zhu, W. Gong
Date :  29 Apr 99  (Deposition) - 03 May 00  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.90
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (4x)
Keywords :  Isomerase, Xylose Isomerase, Glucose Isomerase, Streptomyces, Pseudo- I222 (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  X. Zhu, M. Teng, L. Niu, C. Xu, Y. Wang
Structure Of Xylose Isomerase From Streptomyces Diastaticus No. 7 Strain M1033 At 1. 85 A Resolution.
Acta Crystallogr. , Sect. D V. 56 129 2000
PubMed-ID: 10666592  |  Reference-DOI: 10.1107/S0907444999015097
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - XYLOSE ISOMERASE
    Chains: A
    EC Number: 5.3.1.5
    Organism Scientific: STREPTOMYCES DIASTATICUS
    Organism Taxid: 1956
    Strain: STREPTOMYCES DIASTATICUS NO.7 STRAIN M1033
    Synonym: D-XYLOSE KETOL ISOMERASE, D-GLUCOSE ISOMEARSE

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit : A
Biological Unit 1 (4x): A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 2)

Asymmetric Unit (2, 2)
No.NameCountTypeFull Name
1CO1Ligand/IonCOBALT (II) ION
2MG1Ligand/IonMAGNESIUM ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1CO-1Ligand/IonCOBALT (II) ION
2MG-1Ligand/IonMAGNESIUM ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLU A:180 , GLU A:216 , ASP A:244 , ASP A:286BINDING SITE FOR RESIDUE MG A 780
2AC2SOFTWAREGLU A:216 , HIS A:219 , ASP A:254 , ASP A:256BINDING SITE FOR RESIDUE CO A 781

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (1, 1)

Asymmetric Unit
No.Residues
1Glu A:185 -Pro A:186

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

Asymmetric Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1XYLOSE_ISOMERASEPS51415 Xylose isomerase family profile.XYLA_STRDI4-383  1A:3-382
Biological Unit 1 (1, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1XYLOSE_ISOMERASEPS51415 Xylose isomerase family profile.XYLA_STRDI4-383  4A:3-382

(-) Exons   (0, 0)

(no "Exon" information available for 1CLK)

(-) 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:387
 aligned with XYLA_STRDI | P50910 from UniProtKB/Swiss-Prot  Length:388

    Alignment length:387
                                    11        21        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       
           XYLA_STRDI     2 SYQPTPEDKFTFGLWTVGWQGRDPFGDATRGALDPAESVRRLAELGAHGVTFHDDDLIPFGATDSERAEHIKRFRQGLDETGMKVPMATTNLFTHPVFKDGGFTANDRDVRRYAVRKTIRNIDLAVELGAQTYVAWGGREGAESGAAKDVRVALDRMKEAFDLLGEYVTSQGYDTPFAIEPKPNEPRGDILLPTIGHALAFIDGLERPELYGVNPEVGHEQMAGLNFPHGIAQALWAGKLFHIDLNGQSGIKYDQDLRFGPGDLAAAFWLVDLLESAGYEGPRHFDFKPPRTEDFDGVWASAAGCMRNYLILKERAAAFRADPEVQEALRAARLDELAQPTAGDGLQALLPDRSAFEDFDPDAAAARGMAFERLDQLAMDHLLGARG 388
               SCOP domains d1clka_ A: D-xylose isomerase                                                                                                                                                                                                                                                                                                                                                                       SCOP domains
               CATH domains 1clkA00 A:1-387 Divalent-metal-dependent TIM barrel enzymes                                                                                                                                                                                                                                                                                                                                         CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....hhh.eeeehhhh.................hhhhhhhhhhh...eeeeehhhh......hhhhhhhhhhhhhhhhhh.....eee......hhh.........hhhhhhhhhhhhhhhhhhhh....eeee..............hhhhhhhhhhhhhhhhhhhhh........................hhhhhhhhhh...hhheeeeeehhhhhhh...hhhhhhhhhh...eeeee...................hhhhhhhhhhhhhh.....eee.........hhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhh..hhhhh.......hhhhh..hhh.....hhhhh.....hhhhhhhhhhhh..... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --XYLOSE_ISOMERASE  PDB: A:3-382 UniProt: 4-383                                                                                                                                                                                                                                                                                                                                               ----- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1clk A   1 SYQPTPEDKFTFGLWTVGWQGRDPFGDATRGALDPAESVRRLAELGAHGVTFHDDDLIPFGATDSERAEHIKRFRQALDETGMKVPMATTNLFTHPVFKDGGFTANDRDVRRYALRKTIRNIDLAVELGAQTYVAWGGREGAESGAAKDVRVALDRMKEAFDLLGEYVTSQGYDTPFAIEPKPNEPRGDILLPTIGHALAFIDGLERPELYGVNPEVGHEQMAGLNFPHGIAQALWAGKLFHIDLNGQSGIKYDQDLRFGPGDLRAAFWLVDLLESAGYEGPRHFDFKPPRTEDFDGVWASAAGCMRNYLILKERAAAFRADPEVQEALRAARLDELAQPTAGDGLQALLPDRSAFEDFDPDAAAARGMAFERLDQLAMDHLLGARG 387
                                    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
   Legend:   → Mismatch (orange background)
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  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 Unit
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (8, 8)

Asymmetric Unit(hide GO term definitions)
Chain A   (XYLA_STRDI | P50910)
molecular function
    GO:0016853    isomerase activity    Catalysis of the geometric or structural changes within one molecule. Isomerase is the systematic name for any enzyme of EC class 5.
    GO:0000287    magnesium ion binding    Interacting selectively and non-covalently with magnesium (Mg) ions.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0009045    xylose isomerase activity    Catalysis of the reaction: D-xylose = D-xylulose.
biological process
    GO:0042732    D-xylose metabolic process    The chemical reactions and pathways involving D-xylose, a naturally occurring plant polysaccharide.
    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:0006098    pentose-phosphate shunt    The glucose-6-phosphate catabolic process in which, coupled to NADPH synthesis, glucose-6-P is oxidized with the formation of carbon dioxide (CO2) and ribulose 5-phosphate; ribulose 5-P then enters a series of reactions interconverting sugar phosphates. The pentose phosphate pathway is a major source of reducing equivalents for biosynthesis reactions and is also important for the conversion of hexoses to pentoses.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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  1clk
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 Related Entries

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        XYLA_STRDI | P50910: 1qt1

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