Abstract

The majority of non-repetitive DNA in higher eukaryote genomes is transcribed, but only a small portion of them code for proteins, which appears to be a conundrum. The term "smORF-encoded proteins" (SEPs) refers to small open reading frames (smORFs) that encode functional proteins and are located across the genome in various locations, such as coding sequences (CDSs) and the 5' and 3' untranslated regions (UTRs) of genes. Numerous vital processes, such as metabolic, cellular, gene expression, embryogenesis and development are carried out by SEPs. Additionally, they are connected to a number of clinical conditions promote proteome evolution. As omics technology and identification techniques progress, a large number of peptides are currently being annotated. Further, several of these peptides are essential for the regulation of reproductive physiology and development in insects. Male seminal fluid proteins (SFPs) elicit a physiological response in the females during mating that increases the reproductive success of the mating pair. This response is known as the post-mating response (PMR). SFPs exhibit a broad distribution of relative molecular weights and influence a variety of functions, including catalysis, inhibitor activity, and protein folding and binding. It is now known that several of these proteins, such as MSAmiP in Drosophila, are crucial to insect reproduction. The area of smorf is reviewed in this mini-review, covering basic biology, mechanisms and functions, methodology and advancements finally evolutionary trends. Further expansion of the discussion to their involvement in insect reproductive physiology is also included.

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