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SUBUDHI, A. K.

Publications and source records attributed to SUBUDHI, A. K..

2 recordsLinked to original sources

plasmoRUtils: A one-stop R Package for Plasmodium and other Apicomplexan parasite-related Bioinformatics analysis

Bioinformatics analysis of non-model organisms remains challenging due to the limited availability of specialized tools, as most R packages are optimized for well-annotated model species. This problem is exacerbated by genomic and proteomic data being scattered across multiple databases, each employing different identifiers based on varying reference annotations. Comprehensive databases have been developed to disseminate knowledge related to Apicomplexan genomics and proteomics, such as VEupathDB. Several specialised databases, particularly for the malaria parasite Plasmodium, have been developed such as ApicoTFDB, malaria.tools, MPMP, MIIP, Phenoplasm, PlasmoBase, alongside broader resources like HitPredict and TED. However, these platforms often suffer from manual query interfaces, outdated identifiers, and inefficient data retrieval methods, complicating their use for large-scale bioinformatic analyses. To address these limitations, we present plasmoRUtils, an R package designed to streamline database access and data harmonization for Apicomplexan research. plasmoRUtils enables the retrieval of data tables using single-line R functions and standardized Ensembl gene IDs as input. Thanks to the APIs available for some databases such as VEuPathDB, the package also provides functions to build CLI-based queries for VEuPathDBs component databases. Additional support includes performing overrepresentation analyses and estimating parasite transcriptomic age/stage using single-cell or bulk RNA-Seq references. By automating data retrieval and transformation within RStudio, plasmoRUtils eliminates the need for manual database queries, facilitating end-to-end workflow development without leaving the R environment. Available on GitHub https://github.com/Rohit-Satyam/plasmoRUtils, with comprehensive documentation, plasmoRUtils represents a critical step toward efficient and reproducible bioinformatics for Apicomplexan research.

bioinformatics↗

Protein Phosphatase 1 regulates atypical chromosome segregation and cell polarity during mitotic and meiotic division in Plasmodium sexual stages

PP1 is a conserved eukaryotic serine/threonine phosphatase that regulates many aspects of mitosis and meiosis, often working in concert with other phosphatases, such as CDC14 and CDC25. The proliferative stages of the malaria parasite life cycle include sexual development within the mosquito vector, with male gamete formation characterized by an atypical rapid mitosis, consisting of three rounds of DNA synthesis, successive spindle formation with clustered kinetochores, and a meiotic stage during zygote to ookinete development following fertilization. It is unclear how PP1 is involved in these unusual processes. Using real-time live-cell and ultrastructural imaging, conditional gene knockdown, RNA-seq and proteomic approaches, we show that Plasmodium PP1 is implicated in both mitotic exit and, potentially, establishing cell polarity during zygote development in the mosquito midgut, suggesting that small molecule inhibitors of PP1 should be explored for blocking parasite transmission.

cell biology↗