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Updated: Aug 11, 2026

An Integrated Approach for Microprotein Identification and Sequence Analysis
Published on: July 12, 2022
Functional and evolutionary analyses on expressed intronless genes in the mouse genome
Kishore Ramaji Sakharkar1, Meena Kishore Sakharkar, Cymbeline T Culiat
1National University Medical Institutes, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
Abstract:
Using computational approaches we have identified 2017 expressed intronless genes in the mouse genome. Evolutionary analysis reveals that 56 intronless genes are conserved among the three domains of life--bacteria, archea and eukaryotes. These highly conserved intronless genes were found to be involved in essential housekeeping functions. About 80% of expressed mouse intronless genes have orthologs in eukaryotic genomes only, and thus are specific to eukaryotic organisms. 608 of these genes have intronless human orthologs and 302 of these orthologs have a match in OMIM database. Investigation into these mouse genes will be important in generating mouse models for understanding human diseases.
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