1SXM - JenaLib

Title :   SCORPION TOXIN (NOXIUSTOXIN) WITH HIGH AFFINITY FOR VOLTAGE DEPENDENT POTASSIUM CHANNEL AND LOW AFFINITY FOR CALCIUM DEPENDENT POTASSIUM CHANNEL (NMR AT 20 DEGREES, PH3.5, 39 STRUCTURES)

Authors :   M. Dauplais, B. Gilquin, L. D. Possani, G. Gurrola-Briones, C. Roumestand, A. Menez

Date :   07 Sep 95 (Deposition) - 29 Jan 96 (Release) - 24 Feb 09 (Revision)

Method :   SOLUTION NMR

Resolution :   NOT APPLICABLE

Chains :   NMR Structure  : A  (39x)

Keywords :   Toxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   M. Dauplais, B. Gilquin, L. D. Possani, G. Gurrola-Briones, C. Roumestand, A. Menez
Determination Of The Three-Dimensional Solution Structure Of Noxiustoxin: Analysis Of Structural Differences With Related Short-Chain Scorpion Toxins.
Biochemistry V. 34 16563 1995
PubMed-ID: 8527429 | Reference-DOI: 10.1021/BI00051A004
(for further references see the PDB file header)

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 1)

Sites (1, 1)

SS Bonds (3, 3)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (1, 1)

Exons (0, 0)

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

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Chain A from PDB  Type:PROTEIN  Length:40
 aligned with KAX21_CENNO | P08815 from UniProtKB/Swiss-Prot  Length:39

    Alignment length:40
                                                                 39     
                                    10        20        30        |-
           KAX21_CENNO    1 TIINVKCTSPKQCSKPCKELYGSSAGAKCMNGKCKCYNN-  -
               SCOP domains d1sxma_ A: Noxiustoxin                   SCOP domains
               CATH domains 1sxmA00 A:1-39                         - CATH domains
               Pfam domains ---------------------------------------- Pfam domains
         Sec.struct. author ...............hhhhh......eeee..eeee.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------- SAPs(SNPs)
                    PROSITE ------------SCORP_SHORT_TOXIN       ---- PROSITE
                 Transcript ---------------------------------------- Transcript
                  1sxm A  1 TIINVKCTSPKQCSKPCKELYGSSAGAKCMNGKCKCYNNx 40
                                    10        20        30        40
                                                                  40-NH2

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	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

Classification and Annotation

SCOP Domains (1, 1)

CATH Domains (1, 1)

NMR Structure

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 2-Layer Sandwich (8480)

Topology: Defensin A-like (149)

Homologous Superfamily: [code=3.30.30.10, no name defined] (84)

Mexican scorpion (Centruroides noxius) (5)

1sxmA00

A:1-39

Pfam Domains (0, 0)

Gene Ontology (4, 4)

NMR Structure(hide GO term definitions)

Chain A (KAX21_CENNO | P08815)

molecular function
	GO:0008200	ion channel inhibitor activity	Stops, prevents, or reduces the activity of an ion channel.
biological process
	GO:0006952	defense response	Reactions, triggered in response to the presence of a foreign body or the occurrence of an injury, which result in restriction of damage to the organism attacked or prevention/recovery from the infection caused by the attack.
	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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