ISDA

Deposition Date 2003-02-26

Release Date 2003-09-09

Last Version Date 2024-10-30

Entry Detail

PDB ID:

1OMY

Keywords:

TOXIN

Title:

Crystal Structure of a Recombinant alpha-insect Toxin BmKaIT1 from the scorpion Buthus martensii Karsch

Biological Source:

Source Organism:

Mesobuthus martensii (Taxon ID: 34649)

Host Organism:

Escherichia coli BL21(DE3)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.00 Å

R-Value Free:

0.21

R-Value Work:

0.18

R-Value Observed:

0.18

Space Group:

P 21 21 21

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Alpha-neurotoxin TX12
Chain IDs:A
Chain Length:65
Number of Molecules:1
Biological Source:Mesobuthus martensii

UniProt ID:Q9GQW3 Pfam ID:PF00537

Primary Citation

Crystallization and preliminary crystallographic study of rBmKalphaIT1, a recombinant alpha-insect toxin from the scorpion Buthus martensii Karsch.

Huang, Y, Huang, Q, Chen, H, Tang, Y, Miyake, H, Kusunoki, M.Show

Acta Crystallogr.,Sect.D 59 1635 1636 (2003)

PMID: 12925796 DOI: 10.1107/S090744490301415X

Abstact

Alpha-insect scorpion toxins are a distinct group of scorpion neurotoxins for which no crystal structures are yet available. A novel alpha-insect toxin named BmKalphaIT1 from the scorpion Buthus martensii Karsch (BmK) has been expressed as an inclusion body in Escherichia coli and purified by chromatography after renaturation. Recombinant BmKalphaIT1 (rBmKaIT1) was crystallized using the vapour-diffusion technique in hanging drops at 296 K. The crystals, which were grown in sodium phosphate, belonged to the orthorhombic space group P2(1)2(1)2(1), with unit-cell parameters a = 30.24 (1), b = 36.51 (3), c = 57.08 (2) A. Diffraction data were collected to 2.1 A resolution using synchrotron radiation. There appears to be one rBmKalphaIT1 molecule in the asymmetric unit.

Legend

Protein

Chemical

Disease

Primary Citation of related structures