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(-) Description

Title :  SOLUTION STRUCTURE OF SELENOCOSMIA HUWENA LECTIN-I(SHL-I) BY 2D-NMR
 
Authors :  S. Lu, S. Liang, X. Gu
Date :  10 Jul 99  (Deposition) - 20 Aug 99  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (20x)
Keywords :  Lectin, Selenocosmia Huwena, Shl-I, Cystine Knot (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  S. Lu, S. Liang, X. Gu
Three Dimensional Structure Of Selenocosmia Huwena Lectin-I (Shl-I) From The Venom Of The Spider Selenocosmia Huwena By 2D-Nmr
J. Protein Chem. V. 18 609 2000
PubMed-ID: 10524779  |  Reference-DOI: 10.1023/A:1020663619657
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - SELENOCOSMIA HUWENA LECTIN-I
    Chains: A
    Organ: VENOM GLAND
    Organism Common: CHINESE BIRD SPIDER
    Organism Scientific: SELENOCOSMIA HUWENA
    Organism Taxid: 29017
    Secretion: VENOM

 Structural Features

(-) Chains, Units

  
NMR Structure (20x): 

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 1QK7)

(-) Sites  (0, 0)

(no "Site" information available for 1QK7)

(-) SS Bonds  (3, 3)

NMR Structure
No.Residues
1A:2 -A:14
2A:7 -A:19
3A:13 -A:26

(-) Cis Peptide Bonds  (1, 10)

NMR Structure
No.ModelResidues
111, 12, 13, 14, 15, 16, 17, 18, 19, 20Gly A:30 -Pro A:31

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1QK7)

(-) PROSITE Motifs  (1, 1)

NMR Structure (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1HWTX_1PS60021 Huwentoxin-1 family signature.TXL1_HAPSC51-75  1A:2-26

(-) Exons   (0, 0)

(no "Exon" information available for 1QK7)

(-) Sequences/Alignments

NMR Structure
   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:32
 aligned with TXL1_HAPSC | Q86C51 from UniProtKB/Swiss-Prot  Length:83

    Alignment length:32
                                    59        69        79  
            TXL1_HAPSC   50 GCLGDKCDYNNGCCSGYVCSRTWKWCVLAGPW 81
               SCOP domains d1qk7a_ A: Lectin SHL-I          SCOP domains
               CATH domains -------------------------------- CATH domains
               Pfam domains Toxin_12-1qk7A01 A:1-28     ---- Pfam domains
         Sec.struct. author ....eee.........eeee....eeee.... Sec.struct. author
                 SAPs(SNPs) -------------------------------- SAPs(SNPs)
                    PROSITE -HWTX_1  PDB: A:2-26      ------ PROSITE
                 Transcript -------------------------------- Transcript
                  1qk7 A  1 GCLGDKCDYNNGCCSGYVCSRTWKWCVLAGPW 32
                                    10        20        30
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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  (1, 1)

NMR Structure
(-)
Class: Small proteins (3458)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1QK7)

(-) Pfam Domains  (1, 1)

NMR Structure
(-)
Clan: Omega_toxin (34)

(-) Gene Ontology  (4, 4)

NMR Structure(hide GO term definitions)
Chain A   (TXL1_HAPSC | Q86C51)
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:0008200    ion channel inhibitor activity    Stops, prevents, or reduces the activity of an ion channel.
biological process
    GO:0009405    pathogenesis    The set of specific processes that generate the ability of an organism to induce an abnormal, generally detrimental state in another organism.
cellular component
    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.

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  Cis Peptide Bonds
    Gly A:30 - Pro A:31   [ RasMol ]  
 

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