Scorpio basraensis sp. n. from southern Iraq (Scorpiones: Scorpionidae)

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  Scorpio basraensis sp. n. from southern Iraq (Scorpiones: Scorpionidae) Abstract A new scorpion species, Scorpio basraensis sp. n. , is described and illustrated from Basra Province, southern Iraq. Scorpio basraensis sp. n. is compared with all known species of the genus Scorpio Linnaeus, 1758 occurring in countries surrounding Iraq. The new species can be distinguished by the circular genital operculum in males and the cordiform genital operculum in females (not posteriorly elongated), a densely hirsute body, appendages and metasoma, a distinctly elongated telson vesicle, discrete granules on the external surface of the chela manus that are not flattened, and pectinal tooth counts of 11–13 in males and 9–11 in females. With the description of this species, the number of scorpion species known from Iraq increases to 22, whereas the number of recognized species in the genus Scorpio reaches 33. Yağmur, Ersen A.; Makki, Jafar A.; and Najim, Shurooq A. (2026) " Scorpio basraen...

Integration of proteomic and transcriptomic data of the venom and venom gland from Tityus jaimei

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Integration of proteomic and transcriptomic data of the venom and venom gland from Tityus jaimei

Abstract

This work presents a comprehensive transcriptomic and proteomic analysis of the venom gland and venom of Tityus jaimei, a recently described scorpion species of medical relevance in Panama and Costa Rica. High-throughput RNA sequencing (RNA-seq) and tandem mass spectrometry (MS/MS) enabled the identification of a diverse repertoire of venom proteins. Notably, this is the first report of proteins belonging to the nucleotide pyrophosphatase/phosphodiesterase and knottins families in the venom proteome of a scorpion from the genus Tityus. In addition, several known venom protein families were identified, including hyaluronidases, voltage-gated sodium and potassium channel toxins, lipolysis-activating peptides (LVPs), cysteine-rich secretory proteins (CRISPs), metalloproteinases, peptidylglycine alpha-hydroxylating monooxygenases (PHMs), serine proteases, alpha-amylases, single insulin-like growth factor-binding domain proteins, non-disulfide-bridged peptides (NDBPs), chitinases, cyclotide trypsin inhibitors, and calcin-like peptides. The identification of 16 distinct families in the venom of Tityus jaimei offers novel insights into its composition and the diversity of Tityus venoms in Central America. Finally, the use of IA to protein domain search for protein annotation.
Escobar, A., Salazar, M. H., Hernández-Ortiz, M., Clement, H., Encarnación, S., Cleghorn, J., Acosta, H., & Corzo, G. (2025). Integration of proteomic and transcriptomic data of the venom and venom gland from Tityus jaimei. Journal of Proteomics, 105543. https://doi.org/10.1016/j.jprot.2025.105543