Other Homo sapiens (human) protein
DEAD/H box polypeptide 11 like 12 is a member of the DEAD/H box protein family, recognized for its characteristic Asp-Glu-Ala-Asp/His (DEAD/H) motif and its critical role in RNA metabolism. As an ATP-dependent RNA helicase, this polypeptide is involved in the remodeling of RNA structures and ribonucleoprotein complexes, which are essential for various aspects of gene expression regulation. Its sequence similarity to other DEAD/H box family members suggests conserved biochemical functions, making it a valuable tool for molecular biology studies focused on RNA processing, ribosome biogenesis, and cellular RNA dynamics. The availability of this recombinant polypeptide supports a wide range of research applications exploring the mechanistic underpinnings of RNA biology.
RNA helicase activity assays: DEAD/H box polypeptide 11 like 12 serves as a robust substrate or control in in vitro RNA helicase activity assays. Researchers utilize it to investigate ATP-dependent unwinding of RNA duplexes, providing insights into the mechanisms by which DEAD/H box proteins facilitate RNA secondary structure remodeling. These assays are fundamental for elucidating the kinetic properties, substrate specificity, and cofactor requirements of RNA helicases, contributing to the broader understanding of RNA metabolism.
Protein-protein interaction studies: The polypeptide is frequently employed in experiments aimed at mapping interaction networks among RNA-binding proteins and associated cofactors. By serving as a bait or target molecule in co-immunoprecipitation, yeast two-hybrid, or pull-down assays, it enables the identification of novel binding partners involved in ribonucleoprotein complex assembly. Such studies are crucial for dissecting the molecular machinery that orchestrates RNA processing events and for characterizing the composition of multi-protein complexes.
Structural biology research: Recombinant DEAD/H box polypeptide 11 like 12 is instrumental in structural studies using techniques such as X-ray crystallography or cryo-electron microscopy. Its use facilitates the determination of three-dimensional architectures of RNA helicases, shedding light on domain organization, conformational changes upon ATP binding or hydrolysis, and the structural basis for RNA substrate recognition. Structural insights gained from these studies inform the rational design of modulators and advance the fundamental understanding of RNA helicase function.
Functional genomics and mutational analysis: The polypeptide is applied in functional genomics to investigate the effects of specific amino acid substitutions, truncations, or domain deletions on helicase activity and protein stability. Site-directed mutagenesis and subsequent biochemical characterization allow researchers to pinpoint residues critical for ATPase or RNA-binding activity. Such analyses are pivotal for elucidating structure-function relationships and for understanding the impact of naturally occurring mutations linked to cellular phenotypes.
Cell-free reconstitution systems: DEAD/H box polypeptide 11 like 12 is utilized in cell-free systems to reconstruct aspects of RNA processing pathways, such as pre-mRNA splicing or ribosome assembly, under defined conditions. Its inclusion enables controlled dissection of the stepwise actions of RNA helicases in concert with other factors, facilitating mechanistic studies that are often challenging to perform in vivo. By enabling precise manipulation of experimental variables, these systems provide a platform for testing hypotheses regarding the temporal and functional integration of RNA helicases within larger molecular machines.
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