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(-) Description

Title :  SOLUTION STRUCTURE OF TACHYCITIN, AN ANTIMICROBIAL PROTEIN WITH CHITIN-BINDING FUNCTION
 
Authors :  T. Suetake, S. Tsuda, S. Kawabata, K. Miura, K. Kawano
Date :  04 Jan 00  (Deposition) - 13 Sep 00  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (25x)
Keywords :  Disulfide-Rich, Antimicrobial Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  T. Suetake, S. Tsuda, S. Kawabata, K. Miura, S. Iwanaga, K. Hikichi, K. Nitta, K. Kawano
Chitin-Binding Proteins In Invertebrates And Plants Comprise A Common Chitin-Binding Structural Motif.
J. Biol. Chem. V. 275 17929 2000
PubMed-ID: 10770921  |  Reference-DOI: 10.1074/JBC.C000184200
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - TACHYCITIN
    Cell: HEMOCYTE
    Chains: A
    Organism Scientific: TACHYPLEUS TRIDENTATUS
    Organism Taxid: 6853

 Structural Features

(-) Chains, Units

  
NMR Structure (25x): 

Summary Information (see also Sequences/Alignments below)

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

NMR Structure (1, 1)
No.NameCountTypeFull Name
1NH21Mod. Amino AcidAMINO GROUP

(-) Sites  (1, 1)

NMR Structure (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETHR A:73BINDING SITE FOR RESIDUE NH2 A 74

(-) SS Bonds  (5, 5)

NMR Structure
No.Residues
1A:6 -A:33
2A:12 -A:30
3A:24 -A:61
4A:25 -A:68
5A:40 -A:53

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1DQC)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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(-) Exons   (0, 0)

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(-) 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:74
 aligned with P91818_TACTR | P91818 from UniProtKB/TrEMBL  Length:98

    Alignment length:74
                                    32        42        52        62        72        82        92    
          P91818_TACTR   23 YLAFRCGRYSPCLDDGPNVNLYSCCSFYNCHKCLARLENCPKGLHYNAYLKVCDWPSKAGCTSVNKECHLWKTG 96
               SCOP domains d1dqca_ A: Tachycitin                                                      SCOP domains
               CATH domains 1dqcA00 A:1-73 Antimicrobial Protein, Tachycitin; Chain A                - CATH domains
               Pfam domains -------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ................eee......eeeeee..eeeeee.....eee....eee.hhhh............... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------- Transcript
                  1dqc A  1 YLAFRCGRYSPCLDDGPNVNLYSCCSFYNCHKCLARLENCPKGLHYNAYLKVCDWPSKAGCTSVNKECHLWKTx 74
                                    10        20        30        40        50        60        70   |
                                                                                                    74-NH2
   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  (1, 1)

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

(-) CATH Domains  (1, 1)

NMR Structure
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1DQC)

(-) Gene Ontology  (3, 3)

NMR Structure(hide GO term definitions)
Chain A   (P91818_TACTR | P91818)
molecular function
    GO:0008061    chitin binding    Interacting selectively and non-covalently with chitin, a linear polysaccharide consisting of beta-(1->4)-linked N-acetyl-D-glucosamine residues.
biological process
    GO:0006030    chitin metabolic process    The chemical reactions and pathways involving chitin, a linear polysaccharide consisting of beta-(1->4)-linked N-acetyl-D-glucosamine residues.
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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