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(-) Description

Title :  SIALIDASE COMPLEXED WITH 2-DEOXY-2,3-DEHYDRO-N-ACETYLNEURAMINIC ACID
 
Authors :  A. Gaskell, S. J. Crennell, G. L. Taylor
Date :  21 Jun 96  (Deposition) - 11 Jan 97  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym./Biol. Unit :  A
Keywords :  Neuraminidase, Sialidase, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  A. Gaskell, S. Crennell, G. Taylor
The Three Domains Of A Bacterial Sialidase: A Beta-Propeller, An Immunoglobulin Module And A Galactose-Binding Jelly-Roll.
Structure V. 3 1197 1995
PubMed-ID: 8591030  |  Reference-DOI: 10.1016/S0969-2126(01)00255-6
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - SIALIDASE
    Atcc: 31146
    Chains: A
    EC Number: 3.2.1.18
    Organism Scientific: MICROMONOSPORA VIRIDIFACIENS
    Organism Taxid: 1881
    Other Details: 41KD FORM
    Synonym: NEURAMINIDASE

 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
1DAN1Ligand/Ion2-DEOXY-2,3-DEHYDRO-N-ACETYL-NEURAMINIC ACID

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREARG A:68 , ILE A:69 , ARG A:87 , ASP A:92 , ASP A:131 , PHE A:155 , PHE A:203 , PHE A:234 , ASP A:259 , ARG A:276 , ARG A:342 , TYR A:370 , HOH A:582 , HOH A:773 , HOH A:774BINDING SITE FOR RESIDUE DAN A 800
2ACTUNKNOWNGLN A:224 , GLY A:245 , ALA A:250 , GLY A:292 , ASN A:311 , PHE A:318ACTIVE SITE. SITE COMPRISES BOTH THE SIX RESIDUES INDICATED IN THE 'SITE' RECORDS AND THE CORRESPONDING RESIDUES OF AN SYMMETRY-RELATED UNIT.

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1Ala A:93 -Pro A:94
2Ala A:124 -Pro A:125

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1EUS)

(-) 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:358
 aligned with NANH_MICVI | Q02834 from UniProtKB/Swiss-Prot  Length:647

    Alignment length:358
                                    56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346       356       366       376       386       396        
           NANH_MICVI    47 GEPLYTEQDLAVNGREGFPNYRIPALTVTPDGDLLASYDGRPTGIDAPGPNSILQRRSTDGGRTWGEQQVVSAGQTTAPIKGFSDPSYLVDRETGTIFNFHVYSQRQGFAGSRPGTDPADPNVLHANVATSTDGGLTWSHRTITADITPDPGWRSRFAASGEGIQLRYGPHAGRLIQQYTIINAAGAFQAVSVYSDDHGRTWRAGEAVGVGMDENKTVELSDGRVLLNSRDSARSGYRKVAVSTDGGHSYGPVTIDRDLPDPTNNASIIRAFPDAPAGSARAKVLLFSNAASQTSRSQGTIRMSCDDGQTWPVSKVFQPGSMSYSTLTALPDGTYGLLYEPGTGIRYANFNLAWLGGI 404
               SCOP domains d1eusa_ A: Micromonospora sialidase, N-terminal domain                                                                                                                                                                                                                                                                                                                 SCOP domains
               CATH domains 1eusA00 A:47-404  [code=2.120.10.10, no name defined]                                                                                                                                                                                                                                                                                                                  CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeeeeeee............eeee.....eeeeeee...........eeeeeee..........eeee.........eee..eeeee....eeeeeeeee....................eeeeeee.......eeee..hhh.......eeee................eeeeeeee.....eeeeeeee...................eeeee.....eeeee.......eeeeeee..........eeeeeee......eeee..........hhh.eeeeee........eeeeee........eeeeee......eeeee.....eeeee....eeeeeee.hhhh... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1eus A  47 GEPLYTEQDLAVNGREGFPNYRIPALTVTPDGDLLASYDGRPTGIDAPGPNSILQRRSTDGGRTWGEQQVVSAGQTTAPIKGFSDPSYLVDRETGTIFNFHVYSQRQGFAGSRPGTDPADPNVLHANVATSTDGGLTWSHRTITADITPDPGWRSRFAASGEGIQLRYGPHAGRLIQQYTIINAAGAFQAVSVYSDDHGRTWRAGEAVGVGMDENKTVELSDGRVLLNSRDSARSGYRKVAVSTDGGHSYGPVTIDRDLPDPTNNASIIRAFPDAPAGSARAKVLLFSNAASQTSRSQGTIRMSCDDGQTWPVSKVFQPGSMSYSTLTALPDGTYGLLYEPGTGIRYANFNLAWLGGI 404
                                    56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346       356       366       376       386       396
   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  (1, 1)

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

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (8, 8)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (NANH_MICVI | Q02834)
molecular function
    GO:0052794    exo-alpha-(2->3)-sialidase activity    Catalysis of the hydrolysis of alpha-(2->3)-glycosidic linkages of terminal sialic residues in substrates.
    GO:0052795    exo-alpha-(2->6)-sialidase activity    Catalysis of the hydrolysis of alpha-(2->6)-glycosidic linkages of terminal sialic residues in substrates.
    GO:0052796    exo-alpha-(2->8)-sialidase activity    Catalysis of the hydrolysis of alpha-(2->8)-glycosidic linkages of terminal sialic residues in substrates.
    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.
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0016798    hydrolase activity, acting on glycosyl bonds    Catalysis of the hydrolysis of any glycosyl bond.
biological process
    GO:0008152    metabolic process    The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
cellular component
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

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 Related Entries

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        NANH_MICVI | Q02834: 1eur 1eut 1euu 1w8n 1w8o 1wcq 2ber 2bzd 4j9t

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