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(-) Description

Title :  ORTHORHOMBIC FORM OF TRYPANOSOMA CRUZI TRANS-SIALIDASE
 
Authors :  A. Buschiazzo, M. F. Amaya, M. L. Cremona, A. C. Frasch, P. M. Alzari
Date :  18 Sep 02  (Deposition) - 18 Mar 03  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.25
Chains :  Asym./Biol. Unit :  A
Keywords :  Transglycosylation, Beta-Propeller, Protein-Carbohydrate Interactions, Sialidase, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  A. Buschiazzo, M. F. Amaya, M. L. Cremona, A. C. Frasch, P. M. Alzari
The Crystal Structure And Mode Of Action Of Trans-Sialidase, A Key Enzyme In Trypanosoma Cruzi Pathogenesis
Mol. Cell V. 10 757 2002
PubMed-ID: 12419220  |  Reference-DOI: 10.1016/S1097-2765(02)00680-9
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - TRANS-SIALIDASE
    Chains: A
    EC Number: 3.2.1.18
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PTRCHISA
    Expression System Strain: DH5A-FT
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Fragment: ENZYMATIC GLOBULAR CORE
    Mutation: YES
    Organism Scientific: TRYPANOSOMA CRUZI
    Organism Taxid: 5693

 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 1MR5)

(-) Sites  (0, 0)

(no "Site" information available for 1MR5)

(-) SS Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1A:396 -A:410

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1MR5)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1MR5)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1MR5)

(-) Exons   (0, 0)

(no "Exon" information available for 1MR5)

(-) 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:621
 aligned with Q26966_TRYCR | Q26966 from UniProtKB/TrEMBL  Length:642

    Alignment length:630
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354       364       374       384       394       404       414       424       434       444       454       464       474       484       494       504       514       524       534       544       554       564       574       584       594       604       614       624       634
         Q26966_TRYCR     5 GSSRVELFKRQSSKVPFEKDGKVTERVVHSFRLPALVNVDGVMVAIADARYETSNDNSLIDTVAKYSVDDGETWETQIAIKNSRASSVSRVVDPTVIVKGNKLYVLVGSYNSSRSYWTSHGDARDWDILLAVGEVTKSTAGGKITASIKWGSPVSLKEFFPAEMEGMHTNQFLGGAGVAIVASNGNLVYPVQVTNKKKQVFSKIFYSEDEGKTWKFGKGRSAFGCSEPVALEWEGKLIINTRVDYRRRLVYESSDMGNSWLEAVGTLSRVWGPSPKSNQPGSQSSFTAVTIEGMRVMLFTHPLNFKGRWLRDRLNLWLTDNQRIYNVGQVSIGDENSAYSSVLYKDDKLYCLHEINSNEVYSLVFARLVGELRIIKSVLQSWKNWDSHLSSICTPADPAASSSERGCGPAVTTVGLVGFLSHSATKTEWEDAYRCVNASTANAERVPNGLKFAGVGGGALWPVSQQGQNQRYRFANHAFTVVASVTIHEVPSVASPLLGASLDSSGGKKLLGLSYDERHQWQPIYGSTPVTPTGSWEMGKRYHVVLTMANKIGSEYIDGEPLEGSGQTVVPDERTPDISHFYVGGYKRSDMPTISHVTVNNVLLYNRQLNAEEIRTLFLSQDLIGTEAHM 634
               SCOP domains d1mr5a2 A:4-399 Trypanosoma sialidase                                                                                                                                                                                                                                                                                                                                                                       ---------d1mr5a1 A:409-633 Trypanosoma sialidase, C-terminal domain                                                                                                                                                                        SCOP domains
               CATH domains 1mr5A01 A:4-370  [code=2.120.10.10, no name defined]                                                                                                                                                                                                                                                                                                                           1mr5A02 A:371-633  [code=2.60         .120.200, no name defined]                                                                                                                                                                                                        CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Laminin_G_3-1mr5A01 A:451-618                                                                                                                                           --------------- Pfam domains
         Sec.struct. author ..eeeeee.....eeeeee..eeeeee..eeeeeeeeee..eeeeeeeee.........eeeeeeee.......eeeeee.........eeeeeeeeee..eeeeeeeee.....hhhhh.....eeeeeeeeeeeeehhhhh.eeeeee...ee.hhhh..ee..eeeeeeee..ee.ee.....eeeeeeeee....eeeeeeee.......ee........eeeeeeeee..eeeeeeee......eeee.......ee.......................eeeeee..eeeeeeeee...........eeeeee....eeeeee..........eeeeee..eeeeeeeeee..eeeeeeeehhhhhhhhhhhhhhhhhhhhhhhh.....---------..........eeeeeeeee...eeee......eeee.eeee..eeee.....eeeee.hhhh....hhhhhh.eeeeeeeee.......eeeeeee.......eeeeeee.....eeeee................eeeeeeee..eeeeee..ee.....ee...........eeee.............eeeeeeeee....hhhhhhhhhhhhhhhh..... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1mr5 A   4 GSSRVELFKRQSSKVPFEKDGKVTERVVHSFRLPALVNVDGVMVAIADARYETSFDNSLIDTVAKYSVDDGETWETQIAIKNSRASSVSRVVDPTVIVKGNKLYVLVGSYNSSRSYWTSHGDARDWDILLAVGEVTKSTAGGKITASIKWGSPVSLKEFFPAEMEGMHTNQFLGGAGVAIVASNGNLVYPVQVTNKKKQVFSKIFYSEDEGKTWKFGKGRSAFGCSEPVALEWEGKLIINTRVDYRRRLVYESSDMGNTWLEAVGTLSRVWGPSPKSNQPGSQSSFTAVTIEGMRVMLFTHPLNFKGRWLRDRLNLWLTDNQRIYNVGQVSIGDENSAYSSVLYKDDKLYCLHEINSNEVYSLVFARLVGELRIIKSVLQSWKNWDSHLSSICTPA---------GCGPAVTTVGLVGFLSHSATKTEWEDAYRCVNASTANAERVPNGLKFAGVGGGALWPVSQQGQNQRYHFANHAFTLVASVTIHEVPKGASPLLGASLDSSGGKKLLGLSYDKRHQWQPIYGSTPVTPTGSWEMGKRYHVVLTMANKIGSVYIDGEPLEGSGQTVVPDERTPDISHFYVGGYKRSGMPTDSRVTVNNVLLYNRQLNAEEIRTLFLSQDLIGTEAHM 633
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393     |   -     | 413       423       433       443       453       463       473       483       493       503       513       523       533       543       553       563       573       583       593       603       613       623       633
                                                                                                                                                                                                                                                                                                                                                                                                                                     399       409
   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, 2)

Asymmetric/Biological Unit
(-)
Class: All beta proteins (24004)

(-) CATH Domains  (2, 2)

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

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Clan: Concanavalin (293)

(-) Gene Ontology  (2, 2)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (Q26966_TRYCR | Q26966)
molecular function
    GO:0004308    exo-alpha-sialidase activity    Catalysis of the hydrolysis of alpha-(2->3)-, alpha-(2->6)-, alpha-(2->8)-glycosidic linkages of terminal sialic residues in oligosaccharides, glycoproteins, glycolipids, colominic acid and synthetic substrates.
biological process
    GO:0009405    pathogenesis    The set of specific processes that generate the ability of an organism to induce an abnormal, generally detrimental state in another organism.

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  1mr5
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  Q26966_TRYCR | Q26966
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  3.2.1.18
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 Related Entries

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

UniProtKB/Swiss-Prot
        Q26966_TRYCR | Q26966: 3b69
UniProtKB/TrEMBL
        Q26966_TRYCR | Q26966: 1ms0 1ms1 1ms3 1ms4 1ms5 1ms8 1ms9 1s0i 1s0j 2ah2 3opz 3pjq

(-) Related Entries Specified in the PDB File

1ms0 MONOCLINIC FORM OF TRYPANOSOMA CRUZI TRANS-SIALIDASE, IN COMPLEX WITH 3-DEOXY-2,3-DEHYDRO-N-ACETYLNEURAMINIC ACID (DANA)AND LACTOSE
1ms1 MONOCLINIC FORM OF TRYPANOSOMA CRUZI TRANS-SIALIDASE, IN COMPLEX WITH 3-DEOXY-2,3-DEHYDRO-N-ACETYLNEURAMINIC ACID (DANA)
1ms3 MONOCLINIC FORM OF TRYPANOSOMA CRUZI TRANS-SIALIDASE
1ms4 TRICLINIC FORM OF TRYPANOSOMA CRUZI TRANS-SIALIDASE
1ms5 TRICLINIC FORM OF TRYPANOSOMA CRUZI TRANS-SIALIDASE, SOAKED WITH N-ACETYLNEURAMINYL-A-2,3-THIO-GALACTOSIDE (NA-S-GAL)
1ms8 TRICLINIC FORM OF TRYPANOSOMA CRUZI TRANS-SIALIDASE, IN COMPLEX WITH 3-DEOXY-2,3-DEHYDRO-N-ACETYLNEURAMINIC ACID (DANA)
1ms9 TRICLINIC FORM OF TRYPANOSOMA CRUZI TRANS-SIALIDASE, IN COMPLEX WITH LACTOSE
1mz5 TRYPANOSOMA RANGELI SIALIDASE
1mz6 TRYPANOSOMA RANGELI SIALIDASE IN COMPLEX WITH INHIBITOR DANA