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(-) Description

Title :  STRUCTURE AND FUNCTION OF A VIRALLY ENCODED FUNGAL TOXIN FROM USTILAGO MAYDIS: A FUNGAL AND MAMMALIAN CALCIUM CHANNEL INHIBITOR
 
Authors :  F. Gu, T. Smith
Date :  06 Jun 95  (Deposition) - 31 Oct 95  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.75
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Killer Toxin, Virally Encoded, Single Subunit, Alpha/Beta Family, Left-Handed Crossover, Ustilago Maydis, Fungal Toxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  F. Gu, A. Khimani, S. G. Rane, W. H. Flurkey, R. F. Bozarth, T. J. Smith
Structure And Function Of A Virally Encoded Fungal Toxin From Ustilago Maydis: A Fungal And Mammalian Ca2+ Channel Inhibitor.
Structure V. 3 805 1995
PubMed-ID: 7582897  |  Reference-DOI: 10.1016/S0969-2126(01)00215-5
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - KP4 TOXIN
    Chains: A, B
    Organism Scientific: USTILAGO MAYDIS
    Organism Taxid: 5270
    Other Details: SECRETED
    Strain: P4 STRAIN OF USTILAGO MAYDIS SUBSTRAIN M2B
    Synonym: P4 TOXIN, KP4 KILLER TOXIN

 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 1KPT)

(-) Sites  (0, 0)

(no "Site" information available for 1KPT)

(-) SS Bonds  (10, 10)

Asymmetric/Biological Unit
No.Residues
1A:5 -A:78
2A:11 -A:81
3A:27 -A:67
4A:35 -A:60
5A:44 -A:105
6B:5 -B:78
7B:11 -B:81
8B:27 -B:67
9B:35 -B:60
10B:44 -B:105

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1KPT)

(-) 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:105
 aligned with KP4T_UMV4 | Q90121 from UniProtKB/Swiss-Prot  Length:127

    Alignment length:105
                                    32        42        52        62        72        82        92       102       112       122     
            KP4T_UMV4    23 LGINCRGSSQCGLSGGNLMVRIRDQACGNQGQTWCPGERRAKVCGTGNSISAYVQSTNNCISGTEACRHLTNLVNHGCRVCGSDPLYAGNDVSRGQLTVNYVNSC 127
               SCOP domains d1kpta_ A: Virally encoded KP4 toxin                                                                      SCOP domains
               CATH domains 1kptA00 A:1-105 Killer Toxin P4, subunit A                                                                CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..ee...hhhhhh...hhhhhhhhhhhhh..eee......eee....eeeeeeee....eeehhhhhhhhhhhhhh....eeee...........eeeeee.... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------- Transcript
                 1kpt A   1 LGINCRGSSQCGLSGGNLMVRIRDQACGNQGQTWCPGERRAKVCGTGNSISAYVQSTNNCISGTEACRHLTNLVNHGCRVCGSDPLYAGNDVSRGQLTVNYVNSC 105
                                    10        20        30        40        50        60        70        80        90       100     


Chain B from PDB  Type:PROTEIN  Length:105
 aligned with KP4T_UMV4 | Q90121 from UniProtKB/Swiss-Prot  Length:127

    Alignment length:105
                                    32        42        52        62        72        82        92       102       112       122     
            KP4T_UMV4    23 LGINCRGSSQCGLSGGNLMVRIRDQACGNQGQTWCPGERRAKVCGTGNSISAYVQSTNNCISGTEACRHLTNLVNHGCRVCGSDPLYAGNDVSRGQLTVNYVNSC 127
               SCOP domains d1kptb_ B: Virally encoded KP4 toxin                                                                      SCOP domains
               CATH domains 1kptB00 B:1-105 Killer Toxin P4, subunit A                                                                CATH domains
           Pfam domains (1) Kp4-1kptB01 B:1-105                                                                                       Pfam domains (1)
           Pfam domains (2) Kp4-1kptB02 B:1-105                                                                                       Pfam domains (2)
         Sec.struct. author ..ee...hhhhhh...hhhhhhhhhhhhh..eee......eee....eeeeeeee....eeehhhhhhhhhhhhhh....eeee...........eeeeee.... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------- Transcript
                 1kpt B   1 LGINCRGSSQCGLSGGNLMVRIRDQACGNQGQTWCPGERRAKVCGTGNSISAYVQSTNNCISGTEACRHLTNLVNHGCRVCGSDPLYAGNDVSRGQLTVNYVNSC 105
                                    10        20        30        40        50        60        70        80        90       100
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  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: Alpha and beta proteins (a+b) (23004)

(-) CATH Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Clan: no clan defined [family: Kp4] (1)

(-) Gene Ontology  (2, 2)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (KP4T_UMV4 | Q90121)
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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