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Recombinant Proteins
Recombinant Human HNRNPH1 Protein, also known as heterogeneous nuclear ribonucleoprotein H1 (HNRNPH1), is a human protein that plays an important role in RNA processing and gene expression. It is a member of the heterogeneous nuclear ribonucleoprotein (hnRNP) family, which is a group of proteins that bind to RNA and regulate its function. HNRNPH1 is composed of 356 amino acids and has a molecular weight of approximately 40 kDa. It is encoded by the HNRNPH1 gene located on chromosome 5 in humans.
The structure of HNRNPH1 is highly conserved among different species, indicating its essential role in cellular processes. It contains three RNA recognition motifs (RRMs) and a glycine-rich domain, which are characteristic features of hnRNPs. The RRMs are responsible for binding to RNA, while the glycine-rich domain is involved in protein-protein interactions. HNRNPH1 also has a nuclear localization signal, which allows it to be transported into the nucleus where it carries out its functions.
HNRNPH1 is involved in multiple cellular processes, including pre-mRNA splicing, mRNA stability, and translation. It binds to RNA molecules and regulates their processing, transport, and translation. HNRNPH1 has been shown to interact with various proteins involved in RNA processing, such as RNA helicases, splicing factors, and other hnRNPs. This suggests that HNRNPH1 plays a crucial role in coordinating and regulating RNA metabolism.
One of the main activities of HNRNPH1 is its involvement in pre-mRNA splicing. It binds to pre-mRNA transcripts and helps in the selection of splice sites, which is essential for the production of mature mRNA. HNRNPH1 also plays a role in alternative splicing, where it can promote or inhibit the inclusion of specific exons in the final mRNA product. This allows for the generation of multiple mRNA isoforms from a single gene, increasing the diversity of gene expression.
Another important activity of HNRNPH1 is its role in mRNA stability and translation. It binds to the 3′ untranslated region (UTR) of mRNA and regulates its stability and translation efficiency. HNRNPH1 has been shown to interact with the poly(A) binding protein (PABP), which is involved in mRNA translation. This suggests that HNRNPH1 may play a role in regulating the rate of protein synthesis.
Recombinant Human HNRNPH1 Protein has various applications in both research and medicine. Due to its role in RNA processing and gene expression, it is a valuable tool for studying these processes. Recombinant HNRNPH1 can be used in in vitro splicing assays to investigate its role in pre-mRNA splicing. It can also be used in RNA immunoprecipitation (RIP) assays to identify the RNA molecules that interact with HNRNPH1, providing insights into its regulatory functions.
In medicine, HNRNPH1 has been linked to several diseases, including cancer and neurodegenerative disorders. Mutations in the HNRNPH1 gene have been associated with neurodevelopmental disorders such as intellectual disability and autism. Recombinant HNRNPH1 can be used to study the effects of these mutations and their impact on RNA processing and gene expression.
Furthermore, HNRNPH1 has been identified as a potential biomarker for certain types of cancer. It has been found to be overexpressed in breast cancer and has been associated with tumor progression and poor prognosis. Recombinant HNRNPH1 can be used to develop diagnostic tests for the early detection of breast cancer and to monitor the response to treatment.
In conclusion, Recombinant Human HNRNPH1 Protein is a crucial player in RNA processing and gene
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