Small subunit processome component 20 homolog (626-634)

Small subunit processome component 20 homolog (626-634) is a synthetic peptide fragment derived from a specific region of the SSU processome component 20 protein, a factor involved in the biogenesis of the small ribosomal subunit. As a defined sequence peptide, it represents a valuable tool for dissecting the structure-function relationships of ribonucleoprotein complexes and for probing the molecular mechanisms underlying ribosome assembly. The 626-634 sequence corresponds to a conserved region that may participate in protein-protein or protein-RNA interactions, making it relevant for studies in ribosome biogenesis, nucleolar dynamics, and RNA processing. Its synthetic accessibility and well-defined identity provide researchers with a precise reagent for a variety of biochemical and molecular biology applications.

Peptide mapping: Researchers utilize the 626-634 peptide fragment as a reference standard or epitope in peptide mapping experiments to identify binding sites or post-translational modifications within the full-length SSU processome component 20. By incorporating this fragment into mass spectrometry workflows or antibody-based assays, scientists can pinpoint specific sequence motifs and analyze their accessibility, modification status, or interaction potential in native or recombinant protein preparations. This approach supports detailed characterization of the SSU processome and advances understanding of its assembly and regulation.

Protein-protein interaction studies: The defined sequence of this homologous peptide enables targeted investigation of molecular interactions within the small subunit processome. In vitro binding assays, such as surface plasmon resonance or pull-down experiments, can employ the 626-634 fragment to screen for interacting partners among ribosome assembly factors or nucleolar proteins. Such studies help elucidate the molecular interfaces critical for ribosome biogenesis and provide insights into the dynamic organization of nucleolar complexes.

Antibody generation and validation: The synthetic peptide corresponding to residues 626-634 serves as an effective immunogen for raising sequence-specific antibodies against the SSU processome component 20. These antibodies can be used in immunoblotting, immunoprecipitation, or immunofluorescence assays to detect and localize the endogenous protein, monitor its expression levels, or investigate its subcellular distribution. Peptide-based immunoreagents offer high specificity and are instrumental in dissecting the functional roles of ribosome assembly factors in eukaryotic cells.

Structural biology applications: Incorporation of the 626-634 peptide as a probe or competitor in structural studies facilitates the mapping of interaction surfaces within the ribosome assembly machinery. By introducing this fragment into crystallization screens, NMR titrations, or crosslinking experiments, researchers can identify conformational changes or binding pockets relevant to the assembly or regulation of the small ribosomal subunit. Such applications contribute to the detailed structural understanding of ribonucleoprotein complexes and inform the design of further mechanistic studies.

Peptide synthesis and quality control: The small subunit processome component 20 homolog (626-634) is also employed as a model peptide in the development and optimization of solid-phase peptide synthesis protocols. Its defined sequence and moderate length make it suitable for evaluating coupling efficiency, deprotection strategies, and analytical methods such as HPLC or mass spectrometry. These quality control applications are essential for ensuring the reproducibility and reliability of peptide-based reagents in biochemical research.

1. Oleic acid and glucose regulate glucagon-like peptide 1 receptor expression in a rat pancreatic ductal cell line

2. Myotropic activity and immunolocalization of selected neuropeptides of the burying beetle Nicrophorus vespilloides (Coleoptera: Silphidae)

3. Investigating Potential Interactions Between Neurohypophyseal Peptides, their Drug Analogs, and Coagulation Factor VIII

4. A possible role of tachykinin-related peptide on an immune system activity of mealworm beetle, Tenebrio molitor L

5. The effect of sex on immune responses to a homocitrullinated peptide in the DR4-transgenic mouse model of Rheumatoid Arthritis