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(-) Description

Title :  HUMAN SIALIDASE 2 IN COMPLEX WITH 2,3-DIFLUOROSIALIC ACID (COVALENT INTERMEDIATE)
 
Authors :  S. Buchini, F. -X. Gallat, I. R. Greig, J. -H. Kim, S. Wakatsuki, L. M. G. C S. G. Withers
Date :  25 Oct 13  (Deposition) - 25 Dec 13  (Release) - 02 Apr 14  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym./Biol. Unit :  A
Keywords :  Sialidase, Human Neuraminidase, Fluoro-Sialic Acid, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  S. Buchini, F. X. Gallat, I. R. Greig, J. H. Kim, S. Wakatsuki, L. M. Chavas, S. G. Withers
Tuning Mechanism-Based Inactivators Of Neuraminidases: Mechanistic And Structural Insights.
Angew. Chem. Int. Ed. Engl. V. 53 3382 2014
PubMed-ID: 24591206  |  Reference-DOI: 10.1002/ANIE.201309675

(-) Compounds

Molecule 1 - SIALIDASE-2
    Chains: A
    EC Number: 3.2.1.18
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PGEX-2T
    Expression System Strain: BL21
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: NEU2
    Mutation: YES
    Organism Common: HUMAN
    Organism Scientific: HOMO SAPIENS
    Organism Taxid: 9606
    Synonym: CYTOSOLIC SIALIDASE, N-ACETYL-ALPHA-NEURAMINIDASE 2

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 3)

Asymmetric/Biological Unit (2, 3)
No.NameCountTypeFull Name
1FSR1Ligand/Ion(2S,3S,4R,5R,6R)-5-ACETAMIDO-2,3-BIS(FLUORANYL)-4-OXIDANYL-6-[(1S,2S)-1,2,3-TRIS(OXIDANYL)PROPYL]OXANE-2-CARBOXYLIC ACID
2PO42Ligand/IonPHOSPHATE ION

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREARG A:21 , ILE A:22 , ARG A:41 , TYR A:179 , TYR A:181 , LEU A:217 , GLU A:218 , ARG A:237 , ARG A:304 , TYR A:334 , HOH A:515 , HOH A:591 , HOH A:663 , HOH A:686BINDING SITE FOR RESIDUE FSR A 401
2AC2SOFTWAREALA A:17 , HIS A:18 , TYR A:20 , ALA A:317 , GLU A:319BINDING SITE FOR RESIDUE PO4 A 402
3AC3SOFTWAREARG A:182 , HIS A:210 , PHE A:211 , HOH A:569BINDING SITE FOR RESIDUE PO4 A 403

(-) SS Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1A:88 -A:164

(-) Cis Peptide Bonds  (3, 3)

Asymmetric/Biological Unit
No.Residues
1Gly A:160 -Pro A:161
2Pro A:268 -Pro A:269
3Pro A:315 -Pro A:316

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 4NCS)

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
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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:350
                                                                                                                                                                                                                                                                                                                                                                                              
               SCOP domains d4ncsa_ A: automated matches                                                                                                                                                                                                                                                                                                                                   SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......eeeeeee....eeeeeeeeee....eeeeeeeee...eeeeeeeeeehhhheeee...ee........eeeeeeeeeee....eeeeeeeeee.....eeeeeee..........eehhhhhhhhhhh.eeeeee.....ee.......eeeeeeeee........eeeeeeeee.......ee.......eeeeeeeee...eeeeeeee...eeeeeee........eeeeeeeee.........eeeeee....eeeeeeee......eeeeeeee....hhhhh...eeeeeeeeeeeeeeeeee.....eeeeeeeee....eeeeeeeehhhhh.... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4ncs A   2 ASLPVLQKESVFQSGAHAYRIPALLYLPGQQSLLAFAEQRAAELIVLRRGDYDAPTHQVQWQAQEVVAQARLDGHRSMNPCPLYDAQTGTLFLFFIAIPGANVTRLCQVTSTDHGRTWSSPRDLTDAAIGPAYREWSTFAVGPGHCLQLNDRARSLVVPAYAYRKLHPIQRPIPSAFCFLSHDHGRTWARGHFVAQDTLECQVAEVEQRVVTLNARSHLRARVQAQSTNDGLDFQESQLVKKLVEPPPQGCQGSVISFPSPRAQWLLYTHPTHSWQRADLGAYLNPRPPAPEAWSEPVLLAKGSCAYSDLQSMGTGPDGSPLFGCLYEANDYEEIVFLMFTLKQAFPAEY 377
                                    11        21        31        41||      57        67        77        87        97       107|      128       138       148       158       168       178       188       198       208       218      |231       241       251       261       271       281 ||    297       307       317       327       337       347       357       367       377
                                                                   42|                                                       107|                                                                                                       225|                                                   283|                                                                                       
                                                                    49                                                        119                                                                                                        229                                                    290
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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  (1, 1)

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

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (21, 21)

Asymmetric/Biological Unit(hide GO term definitions)

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  Cis Peptide Bonds
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 Related Entries

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

UniProtKB/Swiss-Prot
        NEUR2_HUMAN | Q9Y3R4: 1snt 1so7 1vcu 2f0z 2f10 2f11 2f12 2f13 2f24 2f25 2f26 2f27 2f28 2f29 4nc5

(-) Related Entries Specified in the PDB File

2a75 TRYPANOSOMA RANGELI SIALIDASE IN COMPLEX WITH 2,3- DIFLUOROSIALIC ACID (COVALENT INTERMEDIATE)
2ah2 CRYSTAL STRUCTURE OF TRYPANOSOMA CRUZI TRANS-SIALIDASE IN COMPLEX WITH 2,3-DIFLUOROSIALIC ACID (COVALENT INTERMEDIATE)
4nc5 HUMAN SIALIDASE 2 IN COMPLEX WITH 2,3-DIFLUOROSIALIC ACID (COVALENT INTERMEDIATE)