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(-) Description

Title :  CRYSTAL STRUCTURE OF S118A MUTANT 3CLSP OF PRRSV
 
Authors :  F. Gao, H. Peng, X. Tian, G. Lu, Y. Liu, G. F. Gao
Date :  17 Nov 08  (Deposition) - 20 Oct 09  (Release) - 20 Oct 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.01
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  A  (2x)
Keywords :  Chymotrypsin-Like, N-Terminal Beta-Barrels, C-Terminal Alpha-Beta Extra Domain, S118A Mutant, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  X. Tian, G. Lu, F. Gao, H. Peng, Y. Feng, G. Ma, M. Bartlam, K. Tian, J. Yan, R. Hilgenfeld, G. F. Gao
Structure And Cleavage Specificity Of The Chymotrypsin-Like Serine Protease (3Clsp/Nsp4) Of Porcine Reproductive And Respiratory Syndrome Virus (Prrsv).
J. Mol. Biol. V. 392 977 2009
PubMed-ID: 19646449  |  Reference-DOI: 10.1016/J.JMB.2009.07.062
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - NON-STRUCTURAL PROTEIN
    Chains: A
    EC Number: 3.4.21.114
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PGEX-6P-1
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Fragment: UNIPROT RESIDUES 1780-1983
    Gene: NSP4, ORF1A
    Mutation: YES
    Organism Common: PRRSV
    Organism Scientific: PORCINE RESPIRATORY AND REPRODUCTIVE SYNDROME VIRUS
    Organism Taxid: 28344
    Strain: JXA1
    Synonym: PROTEINASE, 3C LIKE SERINE PROTEASE, 3CLSP

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit : A
Biological Unit 1 (1x): A
Biological Unit 2 (2x): A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 1)

Asymmetric Unit (1, 1)
No.NameCountTypeFull Name
1PO41Ligand/IonPHOSPHATE ION
Biological Unit 1 (1, 1)
No.NameCountTypeFull Name
1PO41Ligand/IonPHOSPHATE ION
Biological Unit 2 (1, 2)
No.NameCountTypeFull Name
1PO42Ligand/IonPHOSPHATE ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWARESER A:19 , MET A:20 , ASP A:29 , LYS A:33 , HIS A:39BINDING SITE FOR RESIDUE PO4 A 205

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3FAO)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 3FAO)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 3FAO)

(-) Sequences/Alignments

Asymmetric 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:192
 aligned with A1E8J1_PRRSV | A1E8J1 from UniProtKB/TrEMBL  Length:2473

    Alignment length:197
                                  1791      1801      1811      1821      1831      1841      1851      1861      1871      1881      1891      1901      1911      1921      1931      1941      1951      1961      1971       
        A1E8J1_PRRSV   1782 FRTQKPSLNTVNVVGSSMGSGGVFTIDGKIKCVTAAHVLTGNSARVSGVGFNQMLDFDVKGDFAIADCPNWQGVAPKAQFCEDGWTGRAYWLTSSGVEPGVIGNGFAFCFTACGDSGSPVITEAGELVGVHTGSNKQGGGIVTRPSGQFCNVKPIKLSELSEFFAGPKVPLGDVKIGSHIIKDTCEVPSDLCALLAA 1978
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ------------------------------------------------------------------------------3faoA02 A:81-154 Trypsin-like serine proteases                            --------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .........eeeee...eeeeeeeee..eeeeeee.hhh...eeeeee..eeeeee.eee..eeeee...................eeeeeee..eeeeeeee..eeee.........eeee....eeeeee.-----..eee.....eee...eehhhhhhhh...eee.........ee....eeehhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                3fao A    3 FRTQKPSLNTVNVVGSSMGSGGVFTIDGKIKCVTAAHVLTGNSARVSGVGFNQMLDFDVKGDFAIADCPNWQGVAPKAQFCEDGWTGRAYWLTSSGVEPGVIGNGFAFCFTACGDAGSPVITEAGELVGVHTG-----GGIVTRPSGQFCNVKPIKLSELSEFFAGPKVPLGDVKIGSHIIKDTCEVPSDLCALLAA  199
                                    12        22        32        42        52        62        72        82        92       102       112       122       132  |    142       152       162       172       182       192       
                                                                                                                                                              135   141
   Legend:   → Mismatch (orange background)
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    → 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  (0, 0)

(no "SCOP Domain" information available for 3FAO)

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3FAO)

(-) Gene Ontology  (8, 8)

Asymmetric Unit(hide GO term definitions)
Chain A   (A1E8J1_PRRSV | A1E8J1)
molecular function
    GO:0004197    cysteine-type endopeptidase activity    Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a mechanism in which the sulfhydryl group of a cysteine residue at the active center acts as a nucleophile.
    GO:0008234    cysteine-type peptidase activity    Catalysis of the hydrolysis of peptide bonds in a polypeptide chain by a mechanism in which the sulfhydryl group of a cysteine residue at the active center acts as a nucleophile.
    GO:0008233    peptidase activity    Catalysis of the hydrolysis of a peptide bond. A peptide bond is a covalent bond formed when the carbon atom from the carboxyl group of one amino acid shares electrons with the nitrogen atom from the amino group of a second amino acid.
    GO:0004252    serine-type endopeptidase activity    Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
biological process
    GO:0016032    viral process    A multi-organism process in which a virus is a participant. The other participant is the host. Includes infection of a host cell, replication of the viral genome, and assembly of progeny virus particles. In some cases the viral genetic material may integrate into the host genome and only subsequently, under particular circumstances, 'complete' its life cycle.
    GO:0019082    viral protein processing    Any protein maturation process achieved by the cleavage of a peptide bond or bonds within a viral protein.
cellular component
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    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/TrEMBL
        A1E8J1_PRRSV | A1E8J1: 3fan

(-) Related Entries Specified in the PDB File

1mbm NSP4 PROTEASE FROM EAV
3fan WILD TYPE 3CLSP FROM PRRSV