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Genomic organization of BmTXKbeta and BmTXKS2, two scorpion venom peptides from Buthus martensii Karsch. 2001

Z Cao, and S Zhu, and W Li, and D Jiang, and X He, and H Liu
Department of Biotechnology, College of Life Sciences, Wuhan University, China.

To elucidate genomic organization of BmTXKbeta and BmTXKS2, two scorpion venom peptides from Chinese scorpion Buthus martensii Karsch(BmK) were first isolated and their genomic regions characterized using the PCR method. Analysis of nucleotide sequence shows that there exists different intron location in the venom genes. The region encoding mature peptide of BmTXKbeta is disrupted by an intron with 886 bp, whereas the intron of BmTXKS2 is located within its propeptide coding region, which is different from other scorpion toxin genes with their introns within the signal peptide coding region.

UI MeSH Term Description Entries
D007438 Introns Sequences of DNA in the genes that are located between the EXONS. They are transcribed along with the exons but are removed from the primary gene transcript by RNA SPLICING to leave mature RNA. Some introns code for separate genes. Intervening Sequences,Sequences, Intervening,Intervening Sequence,Intron,Sequence, Intervening
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D011498 Protein Precursors Precursors, Protein
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001483 Base Sequence The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence. DNA Sequence,Nucleotide Sequence,RNA Sequence,DNA Sequences,Base Sequences,Nucleotide Sequences,RNA Sequences,Sequence, Base,Sequence, DNA,Sequence, Nucleotide,Sequence, RNA,Sequences, Base,Sequences, DNA,Sequences, Nucleotide,Sequences, RNA
D012604 Scorpion Venoms Venoms from animals of the order Scorpionida of the class Arachnida. They contain neuro- and hemotoxins, enzymes, and various other factors that may release acetylcholine and catecholamines from nerve endings. Of the several protein toxins that have been characterized, most are immunogenic. Scorpion Toxin,Scorpion Toxins,Scorpion Venom Peptide,Tityus serrulatus Venom,Scorpion Venom,alpha-Scorpion Toxin,beta-Scorpion Toxin,gamma-Scorpion Toxin,Peptide, Scorpion Venom,Toxin, Scorpion,Toxin, alpha-Scorpion,Toxin, beta-Scorpion,Venom Peptide, Scorpion,Venom, Scorpion,Venom, Tityus serrulatus,alpha Scorpion Toxin,beta Scorpion Toxin,gamma Scorpion Toxin
D012605 Scorpions Arthropods of the order Scorpiones, of which 1500 to 2000 species have been described. The most common live in tropical or subtropical areas. They are nocturnal and feed principally on insects and other arthropods. They are large arachnids but do not attack man spontaneously. They have a venomous sting. Their medical significance varies considerably and is dependent on their habits and venom potency rather than on their size. At most, the sting is equivalent to that of a hornet but certain species possess a highly toxic venom potentially fatal to humans. (From Dorland, 27th ed; Smith, Insects and Other Arthropods of Medical Importance, 1973, p417; Barnes, Invertebrate Zoology, 5th ed, p503) Scorpion
D016678 Genome The genetic complement of an organism, including all of its GENES, as represented in its DNA, or in some cases, its RNA. Genomes
D018076 DNA, Complementary Single-stranded complementary DNA synthesized from an RNA template by the action of RNA-dependent DNA polymerase. cDNA (i.e., complementary DNA, not circular DNA, not C-DNA) is used in a variety of molecular cloning experiments as well as serving as a specific hybridization probe. Complementary DNA,cDNA,cDNA Probes,Probes, cDNA

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