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(-) Description

Title :  CRYSTAL STRUCTURE OF ANTIFREEZE PROTEIN FROM THE BEETLE, TENEBRIO MOLITOR
 
Authors :  Y. -C. Liou, A. Tocilj, P. L. Davies, Z. Jia
Date :  10 May 00  (Deposition) - 09 Aug 00  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.40
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Insect Antifreeze Protein, Thermal Hysteresis, Tenebrio Molitor, Iodination, Right-Handed Beta-Helix, Tmafp (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  Y. C. Liou, A. Tocilj, P. L. Davies, Z. Jia
Mimicry Of Ice Structure By Surface Hydroxyls And Water Of A Beta-Helix Antifreeze Protein.
Nature V. 406 322 2000
PubMed-ID: 10917536  |  Reference-DOI: 10.1038/35018604
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - THERMAL HYSTERESIS PROTEIN ISOFORM YL-1
    Chains: A, B
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Plasmid: PET20B
    Expression System Strain: BL21 (DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Gene: CDNA FROM FAT BODY LIBRARY
    Organism Common: YELLOW MEALWORM
    Organism Scientific: TENEBRIO MOLITOR
    Organism Taxid: 7067
    Other Details: LARVAE HEMOLYMPH

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

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

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

(-) Sites  (0, 0)

(no "Site" information available for 1EZG)

(-) SS Bonds  (16, 16)

Asymmetric/Biological Unit
No.Residues
1A:3 -A:12
2A:9 -A:19
3A:16 -A:22
4A:28 -A:34
5A:40 -A:46
6A:52 -A:58
7A:64 -A:70
8A:76 -A:82
9B:3 -B:12
10B:9 -B:19
11B:16 -B:22
12B:28 -B:34
13B:40 -B:46
14B:52 -B:58
15B:64 -B:70
16B:76 -B:82

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1EZG)

(-) Exons   (0, 0)

(no "Exon" information available for 1EZG)

(-) Sequences/Alignments

Asymmetric/Biological 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:82
 aligned with ANPY1_TENMO | O16119 from UniProtKB/Swiss-Prot  Length:112

    Alignment length:82
                                    38        48        58        68        78        88        98       108  
          ANPY1_TENMO    29 QCTGGADCTSCTGACTGCGNCPNAVTCTNSQHCVKANTCTGSTDCNTAQTCTNSKDCFEANTCTDSTNCYKATACTNSSGCP 110
               SCOP domains d1ezga_ A: Insect cysteine-rich antifreeze protein                                 SCOP domains
               CATH domains 1ezgA00 A:2-83  [code=2.160.20.50, no name defined]                                CATH domains
               Pfam domains ---------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .............eee.........eee.........eee.........eee.........eee.........eee...... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------- Transcript
                 1ezg A   2 QCTGGADCTSCTGACTGCGNCPNAVTCTNSQHCVKANTCTGSTDCNTAQTCTNSKDCFEANTCTDSTNCYKATACTNSSGCP  83
                                    11        21        31        41        51        61        71        81  


Chain B from PDB  Type:PROTEIN  Length:82
 aligned with ANPY1_TENMO | O16119 from UniProtKB/Swiss-Prot  Length:112

    Alignment length:82
                                    38        48        58        68        78        88        98       108  
          ANPY1_TENMO    29 QCTGGADCTSCTGACTGCGNCPNAVTCTNSQHCVKANTCTGSTDCNTAQTCTNSKDCFEANTCTDSTNCYKATACTNSSGCP 110
               SCOP domains d1ezgb_ B: Insect cysteine-rich antifreeze protein                                 SCOP domains
               CATH domains 1ezgB00 B:2-83  [code=2.160.20.50, no name defined]                                CATH domains
               Pfam domains ---------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .............eee.........eee.........eee.........eee.........eee.........eee...... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------- Transcript
                 1ezg B   2 QCTGGADCTSCTGACTGCGNCPNAVTCTNSQHCVKANTCTGSTDCNTAQTCTNSKDCFEANTCTDSTNCYKATACTNSSGCP  83
                                    11        21        31        41        51        61        71        81
   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, 2)

Asymmetric/Biological Unit
(-)
Class: All beta proteins (24004)

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (2, 2)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (ANPY1_TENMO | O16119)
biological process
    GO:0050826    response to freezing    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a freezing stimulus, temperatures below 0 degrees Celsius.
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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 Related Entries

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

UniProtKB/Swiss-Prot
        ANPY1_TENMO | O16119: 1l1i

(-) Related Entries Specified in the PDB File

1eww