Monopartite Nls
Monopartite Nls - Related Videos
11:58
Initial Evaluation of Antibody-conjugates Modified with Viral-derived Peptides for Increasing Cellular Accumulation and Improving Tumor Targeting
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Cited by 5 •
2018
Viral-derived peptides coupled to antibody-conjugates (ACs) is an approach gaining momentum due to the potential of delivering molecular payloads with increased tumor cell accumulation. Utilizing common methods to evaluate peptide conjugation, AC and payload intracellular accumulation, and tumor targeting, this protocol helps researchers during the key initial development phases.
10:56
Assays for the Degradation of Misfolded Proteins in Cells
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Cited by 5 •
2016
This report describes protocols for measuring degradation rates of misfolded proteins by either western blot or fluorescence-based assays. The methods can be applied to analysis of other misfolded proteins and for high throughput screening.
04:59
Evaluating the Intracellular Distribution of Virus-Derived Peptide-Modified Antibody Conjugates
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2025
This video demonstrates the process of assessing the intracellular distribution of virus-derived peptide-modified antibody conjugates using confocal microscopy. The viral-derived nuclear localization sequence directs antibody-conjugates within the cytoplasm, confirmed through immunostaining and fluorescence measurement.
11:22
Measuring the Kinetics of mRNA Transcription in Single Living Cells
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Cited by 6 •
2011
RNA polymerase II transcriptional kinetics are measured on specific genes in living cells. mRNAs transcribed from the gene of interest are fluorescently tagged and using Fluorescence Recovery After Photobleaching (FRAP) the in vivo kinetics of transcriptional elongation are obtained.
FAQs
Recognition begins when importin-α binds the basic sequence on a cargo protein. Importin-β then associates with this importin-α–cargo complex, creating the transport assembly that engages the nuclear pore complex. This division of roles links sequence recognition to movement across the nuclear envelope and provides a mechanistic basis for studying protein localization in cells.
Ran GTPase controls the final stage of import by promoting cargo release after the transport complex reaches the nuclear side. This step matters because nuclear entry is not simply passage through a pore; the cargo must also be discharged in the correct compartment. Ran activity therefore helps establish nuclear localization of proteins bearing a functional signal.
Recognition depends on a short, contiguous sequence enriched in the basic amino acids lysine and arginine. Because these residues characterize the signal recognized by importin-α, their arrangement provides a sequence-level feature that researchers can examine when evaluating a protein's potential nuclear targeting behavior. This supports sequence-based analysis of localization signals in biological studies.
The nuclear pore complex provides the passage through which the importin-bound cargo moves between the cytoplasm and nucleus. Its role connects molecular recognition of the signal with physical transport across the nuclear envelope. Examining this step helps researchers relate the behavior of a protein sequence to the broader process of nucleocytoplasmic transport.
Researchers can inspect protein sequences for short, contiguous regions enriched in lysine and arginine, then assess whether those features resemble a recognizable nuclear targeting signal. Such predictions provide a basis for proposing nuclear localization before further investigation. The approach is useful for studying proteins involved in nuclear processes such as transcription and DNA replication.
A monopartite NLS can be incorporated into designs intended to direct reporter proteins, genome-editing components, or therapeutic molecules toward the nucleus. Researchers can then evaluate whether the engineered cargo reaches the compartment where its activity is relevant. These applications connect basic transport mechanisms with experimental tools for tracking, manipulating, or delivering molecular cargo in cells.