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(-) Description

Title :  CARBOHYDRATE BINDING DOMAIN FROM STREPTOCOCCUS PNEUMONIAE NANA SIALIDASE COMPLEXED WITH 6'-SIALYLLACTOSE
 
Authors :  L. Yang, H. Connaris, J. A. Potter, G. L. Taylor
Date :  14 Aug 13  (Deposition) - 10 Sep 14  (Release) - 02 Sep 15  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.84
Chains :  Asym./Biol. Unit :  A
Keywords :  Hydrolase, Sialic Acid Binding (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  L. Yang, H. Connaris, J. A. Potter, G. L. Taylor
Structural Characterization Of The Carbohydrate-Binding Module Of Nana Sialidase, A Pneumococcal Virulence Factor.
Bmc Struct. Biol. V. 15 15 2015
PubMed-ID: 26289431  |  Reference-DOI: 10.1186/S12900-015-0042-4

(-) Compounds

Molecule 1 - SIALIDASE A
    ChainsA
    EC Number3.2.1.18
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System StrainBL21(DE3)
    Expression System Taxid469008
    FragmentCBM40, RESIDUES 121-305
    Organism ScientificSTREPTOCOCCUS PNEUMONIAE
    Organism Taxid1313
    StrainR36A / NCTC 10319
    SynonymNEURAMINIDASE A

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (4, 4)

Asymmetric/Biological Unit (4, 4)
No.NameCountTypeFull Name
1BGC1Ligand/IonBETA-D-GLUCOSE
2GAL1Ligand/IonBETA-D-GALACTOSE
3SIA1Ligand/IonO-SIALIC ACID
4TRS1Ligand/Ion2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETHR A:231 , ALA A:232 , PRO A:235BINDING SITE FOR RESIDUE TRS A1309
2AC2SOFTWAREPHE A:167 , ASP A:180 , TYR A:182 , GLU A:195 , ARG A:197 , ASN A:209 , ARG A:274 , TRP A:280 , HOH A:2056 , HOH A:2076 , HOH A:2146 , HOH A:2147 , HOH A:2148BINDING SITE FOR POLY-SACCHARIDE RESIDUES BGC A1306 THROUGH SIA A1308

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 4C1X)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 4C1X)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 4C1X)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 4C1X)

(-) Exons   (0, 0)

(no "Exon" information available for 4C1X)

(-) 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:188
 aligned with NANA_STREE | P62575 from UniProtKB/Swiss-Prot  Length:1035

    Alignment length:215
                                   100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300     
           NANA_STREE    91 GNKQEQERKDKQEEKIPRDYYARDLENVETVIEKEDVETNASNGQRVDLSSELDKLKKLENATVHMEFKPDAKAPAFYNLFSVSSATKKDEYFTMAVYNNTATLEGRGSDGKQFYNNYNDAPLKVKPGQWNSVTFTVEKPTAELPKGRVRLYVNGVLSRTSLRSGNFIKDMPDVTHVQIGATKRANNTVWGSNLQIRNLTVYNRALTPEEVQKRS 305
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .---------------------------.eeeeeeeeeehhhhh.eee...hhhhhhh...eeeeeeeee......eeeeeeee.......eeeeeee..eeeeeee.......................eeeeeeee.........eeeeee..eeeeee.....hhhhh....eeeee.eee..eee....eeeeeeeee....hhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4c1x A 118 G---------------------------AMVIEKEDVETNASNGQRVDLSSELDKLKKLENATVHMEFKPDAKAPAFYNLFSVSSATKKDEYFTMAVYNNTATLEGRGSDGKQFYNNYNDAPLKVKPGQWNSVTFTVEKPTAELPKGRVRLYVNGVLSRTSLRSGNFIKDMPDVTHVQIGATKRANNTVWGSNLQIRNLTVYNRALTPEEVQKRS 305
                            |        -         -       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300     
                            |                         119                                                                                                                                                                                          
                          118                                                                                                                                                                                                                      

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  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (0, 0)

(no "SCOP Domain" information available for 4C1X)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 4C1X)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 4C1X)

(-) Gene Ontology  (11, 11)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (NANA_STREE | P62575)
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: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: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:0005618    cell wall    The rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal, most prokaryotic cells and some protozoan parasites, maintaining their shape and protecting them from osmotic lysis. In plants it is made of cellulose and, often, lignin; in fungi it is composed largely of polysaccharides; in bacteria it is composed of peptidoglycan; in protozoan parasites such as Giardia species, it's made of carbohydrates and proteins.
    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.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.

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 Related Entries

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

UniProtKB/Swiss-Prot
        NANA_STREE | P625752vvz 2ya4 2ya5 2ya6 2ya7 2ya8 4zxk 5kky

(-) Related Entries Specified in the PDB File

4c1w CARBOHYDRATE BINDING DOMAIN FROM STREPTOCOCCUS PNEUMONIAE