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(-) Description

Title :  CRYSTAL STRUCTURE OF ISOMALTULOSE SYNTHASE (PALI) FROM KLEBSIELLA SP. LX3
 
Authors :  N. Li, K. Swaminathan
Date :  08 Jul 02  (Deposition) - 08 Jul 03  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym./Biol. Unit :  A
Keywords :  Klebsiella Sp. Lx3, Isomaltulose Synthase, Sucrose Isomerization, Isomerase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  D. Zhang, N. Li, S. M. Lok, L. -H. Zhang, K. Swaminathan
Isomaltulose Synthase (Pali) Of Klebsiella Sp. Lx3. Crystal Structure And Implication Of Mechanism
J. Biol. Chem. V. 278 35428 2003
PubMed-ID: 12819210  |  Reference-DOI: 10.1074/JBC.M302616200
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - ISOMALTULOSE SYNTHASE
    Chains: A
    EC Number: 5.4.99.11
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Plasmid: PGEX-2T
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Fragment: RESIDUES 29-598
    Gene: PALI
    Organism Scientific: KLEBSIELLA SP. LX3
    Organism Taxid: 167956

 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 1M53)

(-) Sites  (0, 0)

(no "Site" information available for 1M53)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1M53)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1M53)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1M53)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1M53)

(-) Exons   (0, 0)

(no "Exon" information available for 1M53)

(-) 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:556
 aligned with Q8KR84_9ENTR | Q8KR84 from UniProtKB/TrEMBL  Length:598

    Alignment length:556
                                    52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462       472       482       492       502       512       522       532       542       552       562       572       582       592      
         Q8KR84_9ENTR    43 EYPAWWKEAVFYQIYPRSFKDTNDDGIGDIRGIIEKLDYLKSLGIDAIWINPHYDSPNTDNGYDISNYRQIMKEYGTMEDFDSLVAEMKKRNMRLMIDVVINHTSDQHPWFIQSKSDKNNPYRDYYFWRDGKDNQPPNNYPSFFGGSAWQKDAKSGQYYLHYFARQQPDLNWDNPKVREDLYAMLRFWLDKGVSGMRFDTVATYSKIPGFPNLTPEQQKNFAEQYTMGPNIHRYIQEMNRKVLSRYDVATAGEIFGVPLDRSSQFFDRRRHELNMAFMFDLIRLDRDSNERWRHKSWSLSQFRQIISKMDVTVGKYGWNTFFLDNHDNPRAVSHFGDDRPQWREASAKALATITLTQRATPFIYQGSELGMTNYPFRQLNEFDDIEVKGFWQDYVQSGKVTATEFLDNVRLTSRDNSRTPFQWNDTLNAGFTRGKPWFHINPNYVEINAEREETREDSVLNYYKKMIQLRHHIPALVYGAYQDLNPQDNTVYAYTRTLGNERYLVVVNFKEYPVRYTLPANDAIEEVVIDTQQQAAAPHSTSLSLSPWQAGVYKLR 598
               SCOP domains d1m53a2 A:43-520 Isomaltulose synthase PalI                                                                                                                                                                                                                                                                                                                                                                                                                                                   d1m53a1 A:521-598 Isomaltulose synthase PalI                                   SCOP domains
               CATH domains 1m53A01 A:43-146,A:217-521 Glycosidases                                                                 1m53A02 A:147-216 Oligo-1,6-glucosidase; Domain 2                     1m53A01 A:43-146,A:217-521 Glycosidases                                                                                                                                                                                                                                                                          1m53A03 A:522-598 Golgi alpha-mannosidase II                                  CATH domains
               Pfam domains ---------------------------Alpha-amylase-1m53A01 A:70-419                                                                                                                                                                                                                                                                                                                                ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhh.eeeehhhhh.........hhhhhhhhhhhhhhhh..eeee...ee...........eeeee.hhhhhhhhhhhhhhhhhhh..eeeeee........hhhhhhhhhh....hhhhh.ee...................eee......eee.............hhhhhhhhhhhhhhhhh....eeee.hhhhh.........hhhhhhhhhhhh....hhhhhhhhhhhhhhhhh..eeeee....hhhhhhhhhhhhhh...eee....................hhhhhhhhhhhhhhhhh.....ee........hhhhhhh.....hhhhhhhhhhhhhh....eeeee.............hhhhh.hhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhh.......hhhhhh.........hhhhhh.hhhhhhhh..hhhhhhhhhhhhhhhhhhhhhheeee.......eeeeeeee..eeeeeeee.....eeee......eeeeeee...........eeee....eeeeee. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1m53 A  43 EYPAWWKEAVFYQIYPRSFKDTNDDGIGDIRGIIEKLDYLKSLGIDAIWINPHYDSPNTDNGYDISNYRQIMKEYGTMEDFDSLVAEMKKRNMRLMIDVVINHTSDQHPWFIQSKSDKNNPYRDYYFWRDGKDNQPPNNYPSFFGGSAWQKDAKSGQYYLHYFARQQPDLNWDNPKVREDLYAMLRFWLDKGVSGMRFDTVATYSKIPGFPNLTPEQQKNFAEQYTMGPNIHRYIQEMNRKVLSRYDVATAGEIFGVPLDRSSQFFDRRRHELNMAFMFDLIRLDRDSNERWRHKSWSLSQFRQIISKMDVTVGKYGWNTFFLDNHDNPRAVSHFGDDRPQWREASAKALATITLTQRATPFIYQGSELGMTNYPFRQLNEFDDIEVKGFWQDYVQSGKVTATEFLDNVRLTSRDNSRTPFQWNDTLNAGFTRGKPWFHINPNYVEINAEREETREDSVLNYYKKMIQLRHHIPALVYGAYQDLNPQDNTVYAYTRTLGNERYLVVVNFKEYPVRYTLPANDAIEEVVIDTQQQAAAPHSTSLSLSPWQAGVYKLR 598
                                    52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462       472       482       492       502       512       522       532       542       552       562       572       582       592
   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  (2, 2)

Asymmetric/Biological Unit
(-)
Class: All beta proteins (24004)
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (3, 3)

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

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Clan: Glyco_hydro_tim (488)

(-) Gene Ontology  (2, 2)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (Q8KR84_9ENTR | Q8KR84)
molecular function
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
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.

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 Related Entries

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

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(-) Related Entries Specified in the PDB File

1g5a 1G5A CONTAINS AMYLOSUCRASE.
1uok 1UOK CONTAINS OLIGO-1,6-GLUCOSIDASE.