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(-) Description

Title :  CRYSTAL STRUCTURE OF T. MARITIMA 4-ALPHA-GLUCANOTRANSFERASE
 
Authors :  A. Roujeinikova, C. Raasch, S. Sedelnikova, W. Liebl, D. W. Rice
Date :  31 May 02  (Deposition) - 03 Jul 02  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.60
Chains :  Asym./Biol. Unit :  A,B
Keywords :  4-Alpha-Glucanotransferase, Alpha-Amylase Family, Thermotoga Maritima, Acarbose (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  A. Roujeinikova, C. Raasch, S. Sedelnikova, W. Liebl, D. W. Rice
Crystal Structure Of Thermotoga Maritima 4-Alpha-Glucanotransferase And Its Acarbose Complex: Implications For Substrate Specificity And Catalysis
J. Mol. Biol. V. 321 149 2002
PubMed-ID: 12139940  |  Reference-DOI: 10.1016/S0022-2836(02)00570-3
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - 4-ALPHA-GLUCANOTRANSFERASE
    Chains: A, B
    EC Number: 2.4.1.25
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PTAM1
    Expression System Strain: M5219
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: MGT
    Organism Scientific: THERMOTOGA MARITIMA
    Organism Taxid: 2336
    Synonym: MALTODEXTRIN GLYCOSYLTRANSFERASE, AMYLOMALTASE, D- ENZYME, DISPROPORTIONATING ENZYME, OLIGO-1,4-1,4- GLUCANTRANSFERASE

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 2)

Asymmetric/Biological Unit (1, 2)
No.NameCountTypeFull Name
1CA2Ligand/IonCALCIUM ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP B:454 , ASN B:456 , ASP B:458 , VAL B:460 , ASP B:462BINDING SITE FOR RESIDUE CA B 899
2AC2SOFTWAREASP A:13 , ASN A:15 , ASP A:17 , VAL A:19 , ASP A:21BINDING SITE FOR RESIDUE CA A 914

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1Lys A:324 -Pro A:325
2Lys B:765 -Pro B:766

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1LWH)

(-) 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:441
 aligned with MGTA_THEMA | P80099 from UniProtKB/Swiss-Prot  Length:441

    Alignment length:441
                                    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       440 
           MGTA_THEMA     1 MIGYQIYVRSFRDGNLDGVGDFRGLKNAVSYLKELGIDFVWLMPVFSSISFHGYDVVDFYSFKAEYGSEREFKEMIEAFHDSGIKVVLDLPIHHTGFLHTWFQKALKGDPHYRDYYVWANKETDLDERREWDGEKIWHPLEDGRFYRGLFGPFSPDLNYDNPQVFDEMKRLVLHLLDMGVDGFRFDAAKHMRDTIEQNVRFWKYFLSDLKGIFLAEIWAEARMVDEHGRIFGYMLNFDTSHCIKEAVWKENTRVLIESIERAVIGKDYLPVNFTSNHDMSRLASFEGGFSKEKIKLSISILFTLPGVPLVFYGDELGMKGVYQKPNTEVVLDPFPWNESMCVEGQTFWKWPAYNGPFSGISVEYQKRDPDSILSHTLGWTRFRKENQWIDRAKLEFLCKEDKFLVYRLYDDQHSLKVFHNLSGEEVVFEGVKMKPYKTEVV 441
               SCOP domains d1lwha2 A:1-391 4-alpha-glucanotransferase                                                                                                                                                                                                                                                                                                                                                             d1lwha1 A:392-441 4-alpha-glucanotransferase       SCOP domains
               CATH domains 1lwhA01 A:1-93,A:159-391 Glycosidases                                                        1lwhA02 A:94-158 Oligo-1,6-glucosidase; Domain 2                 1lwhA01 A:1-93,A:159-391 Glycosidases                                                                                                                                                                                                    1lwhA03 A:392-441 Golgi alpha-mannosidase II       CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeehhhhh.........hhhhhhhhhhhhhhh...eeee...ee..........eeeee.hhhhhhhhhhhhhhhhhhh..eeeeee........hhhhhhhhh.hhhhhh......................eee.....eee.............hhhhhhhhhhhhhhhhhhh..eeee.hhhhh..hhhhhhhhhhhhhh....eeee.......hhhhhhhhheeeehhhhhhhhhhhhhhh.hhhhhhhhhhhh.....eeeee.......hhhhhhhh.hhhhhhhhhhhhh....eeeee.hhhhh........hhhhhh.............................hhhhhh....hhhhhhhhhhhhhhhhhhhhhheeeeeee...eeeeeeee..eeeeeeee......ee..ee.....eee. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1lwh A   1 MIGYQIYVRSFRDGNLDGVGDFRGLKNAVSYLKELGIDFVWLMPVFSSISFHGYDVVDFYSFKAEYGSEREFKEMIEAFHDSGIKVVLDLPIHHTGFLHTWFQKALKGDPHYRDYYVWANKETDLDERREWDGEKIWHPLEDGRFYRGLFGPFSPDLNYDNPQVFDEMKRLVLHLLDMGVDGFRFDAAKHMRDTIEQNVRFWKYFLSDLKGIFLAEIWAEARMVDEHGRIFGYMLNFDTSHCIKEAVWKENTRVLIESIERAVIAKDYLPVNFTSNHDMSRLASFEGGFSKEKIKLSISILFTLPGVPLVFYGDELGMKGVYQKPNTEVVLDPFPWNESMCVEGQTFWKWPAYNGPFSGISVEYQKRDPDSILSHTLGWTRFRKENQWIDRAKLEFLCKEDKFLVYRLYDDQHSLKVFHNLSGEEVVFEGVKMKPYKTEVV 441
                                    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       440 


Chain B from PDB  Type:PROTEIN  Length:441
 aligned with MGTA_THEMA | P80099 from UniProtKB/Swiss-Prot  Length:441

    Alignment length:441
                                    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       440 
           MGTA_THEMA     1 MIGYQIYVRSFRDGNLDGVGDFRGLKNAVSYLKELGIDFVWLMPVFSSISFHGYDVVDFYSFKAEYGSEREFKEMIEAFHDSGIKVVLDLPIHHTGFLHTWFQKALKGDPHYRDYYVWANKETDLDERREWDGEKIWHPLEDGRFYRGLFGPFSPDLNYDNPQVFDEMKRLVLHLLDMGVDGFRFDAAKHMRDTIEQNVRFWKYFLSDLKGIFLAEIWAEARMVDEHGRIFGYMLNFDTSHCIKEAVWKENTRVLIESIERAVIGKDYLPVNFTSNHDMSRLASFEGGFSKEKIKLSISILFTLPGVPLVFYGDELGMKGVYQKPNTEVVLDPFPWNESMCVEGQTFWKWPAYNGPFSGISVEYQKRDPDSILSHTLGWTRFRKENQWIDRAKLEFLCKEDKFLVYRLYDDQHSLKVFHNLSGEEVVFEGVKMKPYKTEVV 441
               SCOP domains d1lwhb2 B:442-832 4-alpha-glucanotransferase                                                                                                                                                                                                                                                                                                                                                           d1lwhb1 B:833-882 4-alpha-glucanotransferase       SCOP domains
               CATH domains 1lwhB01 B:442-534,B:600-832 Glycosidases                                                     1lwhB02 B:535-599 Oligo-1,6-glucosidase; Domain 2                1lwhB01 B:442-534,B:600-832 Glycosidases                                                                                                                                                                                                 1lwhB03 B:833-882 Golgi alpha-mannosidase II       CATH domains
           Pfam domains (1) -------------------Alpha-amylase-1lwhB01 B:461-767                                                                                                                                                                                                                                                                                    -----------------------------------------------------------------DUF1945-1lwhB03 B:833-882                          Pfam domains (1)
           Pfam domains (2) -------------------Alpha-amylase-1lwhB02 B:461-767                                                                                                                                                                                                                                                                                    -----------------------------------------------------------------DUF1945-1lwhB04 B:833-882                          Pfam domains (2)
         Sec.struct. author ..eeeehhhhhh........hhhhhhhhhhhhhhh...eeee...ee..........eeeee.....hhhhhhhhhhhhhhh..eeeee.........hhhhhhhhh.hhhhhh......................eee.....eee.............hhhhhhhhhhhhhhhhhh...eeee.hhhhh..hhhhhhhhhhhhhh....eeee.......hhhhhhhhhheeehhhhhhhhhhhhhhh.hhhhhhhhhhhh.....eeeee.......hhhhh....hhhhhhhhhhhhh....eeeee.hhhhh........hhhhhh.............................hhhhhhh...hhhhhhhhhhhhhhhhhhhhhheeeeeee...eeeeeeee..eeeeeeee.....eee..eee....eee. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1lwh B 442 MIGYQIYVRSFRDGNLDGVGDFRGLKNAVSYLKELGIDFVWLMPVFSSISFHGYDVVDFYSFKAEYGSEREFKEMIEAFHDSGIKVVLDLPIHHTGFLHTWFQKALKGDPHYRDYYVWANKETDLDERREWDGEKIWHPLEDGRFYRGLFGPFSPDLNYDNPQVFDEMKRLVLHLLDMGVDGFRFDAAKHMRDTIEQNVRFWKYFLSDLKGIFLAEIWAEARMVDEHGRIFGYMLNFDTSHCIKEAVWKENTRVLIESIERAVIAKDYLPVNFTSNHDMSRLASFEGGFSKEKIKLSISILFTLPGVPLVFYGDELGMKGVYQKPNTEVVLDPFPWNESMCVEGQTFWKWPAYNGPFSGISVEYQKRDPDSILSHTLGWTRFRKENQWIDRAKLEFLCKEDKFLVYRLYDDQHSLKVFHNLSGEEVVFEGVKMKPYKTEVV 882
                                   451       461       471       481       491       501       511       521       531       541       551       561       571       581       591       601       611       621       631       641       651       661       671       681       691       701       711       721       731       741       751       761       771       781       791       801       811       821       831       841       851       861       871       881
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → 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/Biological Unit
(-)
Class: All beta proteins (24004)
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (3, 6)

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

(-) Pfam Domains  (2, 4)

Asymmetric/Biological Unit
(-)
Clan: Glyco_hydro_tim (488)
(-)
Clan: no clan defined [family: DUF1945] (2)

(-) Gene Ontology  (9, 9)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (MGTA_THEMA | P80099)
molecular function
    GO:0004134    4-alpha-glucanotransferase activity    Catalysis of the transfer of a segment of a (1->4)-alpha-D-glucan to a new 4-position in an acceptor, which may be glucose or (1->4)-alpha-D-glucan.
    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.
    GO:0043169    cation binding    Interacting selectively and non-covalently with cations, charged atoms or groups of atoms with a net positive charge.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
    GO:0016757    transferase activity, transferring glycosyl groups    Catalysis of the transfer of a glycosyl group from one compound (donor) to another (acceptor).
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:0005977    glycogen metabolic process    The chemical reactions and pathways involving glycogen, a polydisperse, highly branched glucan composed of chains of D-glucose residues in alpha-(1->4) glycosidic linkage, joined together by alpha-(1->6) glycosidic linkages.
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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  2.4.1.25
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 Related Entries

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UniProtKB/Swiss-Prot
        MGTA_THEMA | P80099: 1lwj

(-) Related Entries Specified in the PDB File

1lwj CRYSTAL STRUCTURE OF T. MARITIMA 4-ALPHA- GLUCANOTRANSFERASE/ACARBOSE COMPLEX