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(-) Description

Title :  CRYSTAL STRUCTURE OF CYANOVIRIN-N SWAPPING DOMAIN B MUTANT
 
Authors :  E. Matei, A. Zheng, W. Furey, J. Rose, C. Aiken, A. M. Gronenborn
Date :  21 Jan 10  (Deposition) - 09 Feb 10  (Release) - 05 May 10  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.34
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (2x)
Keywords :  Cyanovirin-N, Sugar Binding Protein, Hiv-Inactivating, Gp120, Antiviral Protein, Protein Synthesis Inhibitor, Lectin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  E. Matei, A. Zheng, W. Furey, J. Rose, C. Aiken, A. M. Gronenborn
Anti-Hiv Activity Of Defective Cyanovirin-N Mutants Is Restored By Dimerization.
J. Biol. Chem. V. 285 13057 2010
PubMed-ID: 20147291  |  Reference-DOI: 10.1074/JBC.M109.094938

(-) Compounds

Molecule 1 - CYANOVIRIN-N
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET26B
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Mutation: YES
    Organism Scientific: NOSTOC ELLIPSOSPORUM
    Organism Taxid: 45916
    Synonym: CV-N

 Structural Features

(-) Chains, Units

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

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 5)

Asymmetric Unit (2, 5)
No.NameCountTypeFull Name
1NA2Ligand/IonSODIUM ION
2PO43Ligand/IonPHOSPHATE ION
Biological Unit 1 (1, 6)
No.NameCountTypeFull Name
1NA-1Ligand/IonSODIUM ION
2PO46Ligand/IonPHOSPHATE ION

(-) Sites  (5, 5)

Asymmetric Unit (5, 5)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLU A:23 , TYR A:29 , ARG A:58 , ASN A:59 , HOH A:111BINDING SITE FOR RESIDUE NA A 221
2AC2SOFTWAREALA A:70 , SER A:81 , THR A:82 , GLU A:100 , HOH A:130BINDING SITE FOR RESIDUE NA A 222
3AC3SOFTWARELEU A:1 , ASN A:59 , GLN A:61 , HOH A:155 , HOH A:197 , HOH A:215BINDING SITE FOR RESIDUE PO4 A 223
4AC4SOFTWAREGLN A:6 , ASP A:35 , ASN A:37 , HOH A:184 , HOH A:198 , HOH A:199BINDING SITE FOR RESIDUE PO4 A 224
5AC5SOFTWARETRP A:49 , PRO A:50 , SER A:51 , GLU A:55 , HIS A:89 , TYR A:99 , HOH A:139 , HOH A:195BINDING SITE FOR RESIDUE PO4 A 225

(-) SS Bonds  (2, 2)

Asymmetric Unit
No.Residues
1A:8 -A:22
2A:57 -A:72

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 3LHC)

(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
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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:100
 aligned with CVN_NOSEL | P81180 from UniProtKB/Swiss-Prot  Length:101

    Alignment length:101
                                    10        20        30        40        50        60        70        80        90       100 
            CVN_NOSEL     1 LGKFSQTCYNSAIQGSVLTSTCERTNGGYNTSSIDLNSVIENVDGSLKWQPSNFIETCRNTQLAGSSELAAECKTRAQQFVSTKINLDDHIANIDGTLKYE 101
               SCOP domains d3lhca_ A: automated matches                                                                          SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --CVNH-3lhcA01 A:3-99                            -                                                  - Pfam domains
         Sec.struct. author ..hhhh.eeeeeee..eeeeeee.....eeeeeee.....eee..eee.-..hhhh.eeeeeee...eeeeeee.....eeeeeee....eeee..eeee. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------- Transcript
                 3lhc A   1 LGKFSQTCYNSAIQGSVLTSTCERTNGGYNTSSIDLNSVIAAVDGSLKW-PSNFIEACRNTQLAGSSELAAECKTAAGQFVSTKINLDDHIANIDGTLKYE 100
                                    10        20        30        40        |-|       59        69        79        89        99 
                                                                           49 |                                                  
                                                                             50
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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 Unit
(-)
Class: All beta proteins (24004)

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (1, 1)

Asymmetric Unit
(-)
Clan: no clan defined [family: CVNH] (11)

(-) Gene Ontology  (2, 2)

Asymmetric Unit(hide GO term definitions)
Chain A   (CVN_NOSEL | P81180)
molecular function
    GO:0030246    carbohydrate binding    Interacting selectively and non-covalently with any carbohydrate, which includes monosaccharides, oligosaccharides and polysaccharides as well as substances derived from monosaccharides by reduction of the carbonyl group (alditols), by oxidation of one or more hydroxy groups to afford the corresponding aldehydes, ketones, or carboxylic acids, or by replacement of one or more hydroxy group(s) by a hydrogen atom. Cyclitols are generally not regarded as carbohydrates.
biological process
    GO:0050688    regulation of defense response to virus    Any process that modulates the frequency, rate or extent of the antiviral response of a cell or organism.

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 Related Entries

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

UniProtKB/Swiss-Prot
        CVN_NOSEL | P81180: 1iiy 1j4v 1l5b 1l5e 1lom 1n02 2ezm 2ezn 2pys 2rdk 2rp3 2z21 3czz 3ezm 3gxy 3gxz 3s3y 3s3z 4j4c 4j4d 4j4e 4j4f 4j4g

(-) Related Entries Specified in the PDB File

1lom CRYSTAL STRUCTURE OF A DOUBLE MUTANT OF CYANOVIRIN-N
2ezm SOLUTION NMR STRUCTURE OF THE MONOMER CV-N
3ezm CRYSTAL STRUCTURE OF DOMAIN-SWAPPED CYANOVIRIN-N DIMER