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(-) Description

Title :  TRYPANOSOMA CRUZI TRANS-SIALIDASE-LIKE INACTIVE ISOFORM (INCLUDING THE NATURAL MUTATION TYR342HIS) IN COMPLEX WITH LACTOSE
 
Authors :  P. Oppezzo, M. Baraibar, G. Obal, O. Pritsch, P. M. Alzari, A. Buschiazz
Date :  10 Nov 10  (Deposition) - 08 Jun 11  (Release) - 24 Aug 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.10
Chains :  Asym./Biol. Unit :  A
Keywords :  Beta-Propeller, Lectin / Similar To Actve Trans-Sialidases, Lactose, Sugar Binding Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  P. Oppezzo, G. Obal, M. A. Baraibar, O. Pritsch, P. M. Alzari, A. Buschiazzo
Crystal Structure Of An Enzymatically Inactive Trans-Sialidase-Like Lectin From Trypanosoma Cruzi: The Carbohydrate Binding Mechanism Involves Residual Sialidase Activity.
Biochim. Biophys. Acta V. 1814 1154 2011
PubMed-ID: 21570497  |  Reference-DOI: 10.1016/J.BBAPAP.2011.04.012

(-) 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: TOP10F
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Fragment: UNP RESIDUES 2-635
    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  (1, 1)

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
1LBT1Ligand/IonALPHA-LACTOSE

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREARG A:35 , ASP A:59 , TYR A:119 , ARG A:311 , TRP A:312 , GLU A:362 , HOH A:695 , HOH A:715 , HOH A:741 , HOH A:772 , HOH A:776 , HOH A:801 , HOH A:818BINDING SITE FOR RESIDUE LBT A 901

(-) 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 3PJQ)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3PJQ)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3PJQ)

(-) Exons   (0, 0)

(no "Exon" information available for 3PJQ)

(-) 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:626
 aligned with Q26966_TRYCR | Q26966 from UniProtKB/TrEMBL  Length:642

    Alignment length:635
                             1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
                             |       9        19        29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369       379       389       399       409       419       429       439       449       459       469       479       489       499       509       519       529       539       549       559       569       579       589       599       609       619       629     
         Q26966_TRYCR     - -MLAPGSSRVELFKRQSSKVPFEKDGKVTERVVHSFRLPALVNVDGVMVAIADARYETSNDNSLIDTVAKYSVDDGETWETQIAIKNSRASSVSRVVDPTVIVKGNKLYVLVGSYNSSRSYWTSHGDARDWDILLAVGEVTKSTAGGKITASIKWGSPVSLKEFFPAEMEGMHTNQFLGGAGVAIVASNGNLVYPVQVTNKKKQVFSKIFYSEDEGKTWKFGKGRSAFGCSEPVALEWEGKLIINTRVDYRRRLVYESSDMGNSWLEAVGTLSRVWGPSPKSNQPGSQSSFTAVTIEGMRVMLFTHPLNFKGRWLRDRLNLWLTDNQRIYNVGQVSIGDENSAYSSVLYKDDKLYCLHEINSNEVYSLVFARLVGELRIIKSVLQSWKNWDSHLSSICTPADPAASSSERGCGPAVTTVGLVGFLSHSATKTEWEDAYRCVNASTANAERVPNGLKFAGVGGGALWPVSQQGQNQRYRFANHAFTVVASVTIHEVPSVASPLLGASLDSSGGKKLLGLSYDERHQWQPIYGSTPVTPTGSWEMGKRYHVVLTMANKIGSEYIDGEPLEGSGQTVVPDERTPDISHFYVGGYKRSDMPTISHVTVNNVLLYNRQLNAEEIRTLFLSQDLIGTEAHM 634
               SCOP domains d3pjqa1 A:-1-399 automated matches                                                                                                                                                                                                                                                                                                                                                                               ---------d3pjqa2 A:409-633 automated matches                                                                                                                                                                                               SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Laminin_G_3-3pjqA01 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.....eeeee.......ee.......................eeeeee..eeeeeeeee...........eeeeee....eeeeee..........eeeeee..eeeeeeeeee..eeeeeeeehhhhhhhhhhhhhhhhhhhhhhhhh....---------..........eeeeeeeee...eeee......eeee.eeee..eeee.....eeeee.hhhh....hhhhh.eeeeeeeeee.......eeeeeee.......eeeeeee.....eeeee...............eeeeeeeee..eeeeee..ee.....ee...........eeee.............eeeeeeeee....hhhhhhhhhhhh......... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3pjq A  -1 ASLAPGSSRVELFKRQSSKVPFEKDGKVTERVVHSFRLPALVNVDGVMVAIADARYETSFDNSLIDTVAKYSVDDGETWETQIAIKNSRASSVSRVVDPTVIVKGNKLYVLVGSYNSSRSYWTSHGDARDWDILLAVGEVTKSTAGGKITASIKWGSPVSLKEFFPAEMEGMHTNQFLGGAGVAIVASNGNLVYPVQVTNKKKQVFSKIFYSEDEGKTWKFGKGRSAFGCSEPVALEWEGKLIINTRVDYRRRLVYESSDMGNTWLEAVGTLSRVWGPSPKSNQPGSQSSFTAVTIEGMRVMLFTHPLNFKGRWLRDRLNLWLTDNQRIYNVGQVSIGDENSAHSSVLYKDDKLYCLHEINSNEVYSLVFARLVGELRIIKSVLQSWKNWDSHLSSICTPA---------GCGPAVTTVGLVGFLSHSATKTEWEDAYRCVNASTANAERVPNGLKFAGVGGGALWPVSQQGQNQRYHFANHAFTLVASVTIHEVPKGASPLLGASLDSSGGKKLLGLSYDKRHQWQPIYGSTPVTPTGSWEMGKRYHVVLTMANKIGSVYIDGEPLEGSGQTVVPDERTPDISHFYVGGYKRSGMPTDSRVTVNNVLLYNRQLNAEEIRTLFLSQDLIGTEAHM 633
                                     8        18        28        38        48        58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268       278       288       298       308       318       328       338       348       358       368       378       388       398|        -|      418       428       438       448       458       468       478       488       498       508       518       528       538       548       558       568       578       588       598       608       618       628     
                                                                                                                                                                                                                                                                                                                                                                                                                                          399       409
   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)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3PJQ)

(-) 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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  3pjq
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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: 1mr5 1ms0 1ms1 1ms3 1ms4 1ms5 1ms8 1ms9 1s0i 1s0j 2ah2 3opz

(-) Related Entries Specified in the PDB File

1ms0 1s0i 1s0j