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(-) Description

Title :  CRYSTAL STRUCTURE OF ACTINOHIVIN; POTENT ANTI-HIV PROTEIN
 
Authors :  M. Tsunoda, K. Suzuki, T. Sagara, A. Takenaka
Date :  04 Mar 09  (Deposition) - 25 Aug 09  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.19
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Keywords :  Carbohydrate-Binding Module Family 13, Antiviral Protein, Lectin (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  H. Tanaka, H. Chiba, J. Inokoshi, A. Kuno, T. Sugai, A. Takahashi, Y. Ito, M. Tsunoda, K. Suzuki, A. Takenaka, T. Sekiguchi, H. Umeyama, J. Hirabayashi, S. Omura
Mechanism By Which The Lectin Actinohivin Blocks Hiv Infection Of Target Cells
Proc. Natl. Acad. Sci. Usa V. 106 15633 2009
PubMed-ID: 19717426  |  Reference-DOI: 10.1073/PNAS.0907572106

(-) Compounds

Molecule 1 - ACTINOHIVIN
    ChainsA, B
    FragmentUNP RESIDUES 43-160
    Organism CommonLONGISPORA ALBIDA
    Organism ScientificACTINOMYCETE
    Organism Taxid237531
    StrainK97-0003

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit AB
Biological Unit 1 (1x)A 
Biological Unit 2 (1x) B

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 6)

Asymmetric Unit (1, 6)
No.NameCountTypeFull Name
1NA6Ligand/IonSODIUM ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1NA-1Ligand/IonSODIUM ION
Biological Unit 2 (0, 0)
No.NameCountTypeFull Name
1NA-1Ligand/IonSODIUM ION

(-) Sites  (6, 6)

Asymmetric Unit (6, 6)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETYR A:126 , ILE A:127 , VAL A:135 , LEU A:136 , GLN A:155 , TRP A:157BINDING SITE FOR RESIDUE NA A 1
2AC2SOFTWARETHR A:50 , ILE A:51 , LEU A:59 , LEU A:60 , GLN A:79 , TRP A:81BINDING SITE FOR RESIDUE NA A 2
3AC3SOFTWARETHR A:88 , VAL A:89 , CYS A:97 , LEU A:98 , GLN A:117BINDING SITE FOR RESIDUE NA A 3
4AC4SOFTWARETHR B:88 , VAL B:89 , CYS B:97 , LEU B:98 , GLN B:117BINDING SITE FOR RESIDUE NA B 4
5AC5SOFTWARETYR B:126 , ILE B:127 , VAL B:135 , LEU B:136 , GLN B:155 , TRP B:157BINDING SITE FOR RESIDUE NA B 5
6AC6SOFTWARETHR B:50 , ILE B:51 , LEU B:59 , LEU B:60 , GLN B:79 , TRP B:81BINDING SITE FOR RESIDUE NA B 6

(-) SS Bonds  (2, 2)

Asymmetric Unit
No.Residues
1A:97 -A:111
2B:97 -B:111

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 3A07)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3A07)

(-) PROSITE Motifs  (1, 2)

Asymmetric Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1RICIN_B_LECTINPS50231 Lectin domain of ricin B chain profile.AHV_ACTSK45-160
 
  2A:45-160
B:45-160
Biological Unit 1 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1RICIN_B_LECTINPS50231 Lectin domain of ricin B chain profile.AHV_ACTSK45-160
 
  1A:45-160
-
Biological Unit 2 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1RICIN_B_LECTINPS50231 Lectin domain of ricin B chain profile.AHV_ACTSK45-160
 
  1-
B:45-160

(-) Exons   (0, 0)

(no "Exon" information available for 3A07)

(-) 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:116
 aligned with AHV_ACTSK | Q9KWN0 from UniProtKB/Swiss-Prot  Length:160

    Alignment length:116
                                    54        64        74        84        94       104       114       124       134       144       154      
            AHV_ACTSK    45 QFASVTIRNAQTGRLLDSNYNGNVYTLPANGGNYQRWTGPGDGTVRNAQTGRCLDSNYDGAVYTLPCNGGSYQKWLFYSNGYIQNVETGRVLDSNYNGNVYTLPANGGNYQKWYTG 160
               SCOP domains -------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeee.eee.....eeee.....eeee....hhhh.eee......ee.....eeee.....eeee....hhhh.eee.....eee.....eeee.....eeee....hhhh.eee. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE RICIN_B_LECTIN  PDB: A:45-160 UniProt: 45-160                                                                        PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------- Transcript
                 3a07 A  45 QFASVTIRNAQTGRLLDSNYNGNVYTLPANGGNYQRWTGPGDGTVRNAQTGRCLDSNYDGAVYTLPCNGGSYQKWLFYSNGYIQNVETGRVLDSNYNGNVYTLPANGGNYQKWYTG 160
                                    54        64        74        84        94       104       114       124       134       144       154      

Chain B from PDB  Type:PROTEIN  Length:118
 aligned with AHV_ACTSK | Q9KWN0 from UniProtKB/Swiss-Prot  Length:160

    Alignment length:118
                                    52        62        72        82        92       102       112       122       132       142       152        
            AHV_ACTSK    43 SAQFASVTIRNAQTGRLLDSNYNGNVYTLPANGGNYQRWTGPGDGTVRNAQTGRCLDSNYDGAVYTLPCNGGSYQKWLFYSNGYIQNVETGRVLDSNYNGNVYTLPANGGNYQKWYTG 160
               SCOP domains ---------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeee.eee.....eeee.....eeee....hhhh.eee......ee.....eeee.....eeee....hhhh.eee.....eee.....eeee.....eeee....hhhh.eee. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --RICIN_B_LECTIN  PDB: B:45-160 UniProt: 45-160                                                                        PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------- Transcript
                 3a07 B  43 SAQFASVTIRNAQTGRLLDSNYNGNVYTLPANGGNYQRWTGPGDGTVRNAQTGRCLDSNYDGAVYTLPCNGGSYQKWLFYSNGYIQNVETGRVLDSNYNGNVYTLPANGGNYQKWYTG 160
                                    52        62        72        82        92       102       112       122       132       142       152        

   Legend:   → Mismatch (orange background)
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  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 3A07)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3A07)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3A07)

(-) Gene Ontology  (3, 3)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (AHV_ACTSK | Q9KWN0)
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.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
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
        AHV_ACTSK | Q9KWN04den 4end 4g1r 4p6a

(-) Related Entries Specified in the PDB File

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