Linker Proteins
Linker Proteins - Related Videos
01:09
Cytoskeletal Linker Proteins - Plakins
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2023
Plakins are large proteins with binding domains for microtubules, microfilaments, intermediate filaments, and membrane-associated protein complexes at cell junctions. Plakin functions are evolutionarily conserved and are primarily involved in organizing the different components of the cytoskeleton by crosslinking them to each other and connecting them to the cell-matrix and cell adhesion complexes. They are also known to interact with signal transducers, serve as scaffolds for signaling...
14:40
Expression Analysis of Mammalian Linker-histone Subtypes
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Cited by 22 •
2012
We describe a set of assays to analyze expression levels of H1 linker histones. mRNA of individual H1 genes are quantitatively measured by random primer based reverse transcription followed by real-time PCR, whereas protein quantification of H1 histones is achieved by HPLC analysis.
10:34
Identification of Sleeping Beauty Transposon Insertions in Solid Tumors using Linker-mediated PCR
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Cited by 3 •
2013
A method of identifying unknown drivers of carcinogenesis using an unbiased approach is described. The method uses the Sleeping Beauty transposon as a random mutagen directed to specific tissues. Genomic mapping of transposon insertions that drive tumor formation identifies novel oncogenes and tumor suppressor...
11:15
Imaging Protein-protein Interactions in vivo
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Cited by 5 •
2010
This protocol describes how to image protein-protein interactions using a FRET-based proximity assay.
12:30
Vascular Gene Transfer from Metallic Stent Surfaces Using Adenoviral Vectors Tethered through Hydrolysable Cross-linkers
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Cited by 12 •
2014
These studies report on reversible attachment of adenoviral gene vectors to coatless metal surfaces of stents and model mesh disks. Sustained release of transduction-competent viral particles contingent upon hydrolysis of cross-linkers used for vector immobilization results in a durable site-specific transgene expression in vascular cells and in stented arteries.
FAQs
Linker proteins can use distinct binding domains or flexible regions to recognize different partners. These interaction features help connect selected molecules and bring them into proximity, supporting the assembly of multiprotein complexes. Their organization can therefore influence how cellular components cooperate, remain associated, and coordinate activities within a larger biological system.
Proximity helps the correct molecular partners interact within an organized cellular context. A linker protein can consequently affect whether a complex assembles, how stable it remains, or how associated components are positioned for coordinated activity. This makes spatial organization an important part of cellular communication, structure, and movement.
Changes in linker-protein interactions can disrupt the organization or stability of molecular complexes and alter the communication between their components. Because these proteins participate in signaling, structural organization, transport, and chromatin architecture, altered interactions may influence cellular communication and structure. Such effects help explain their relevance to development and disease mechanisms.
Linker proteins contribute to several major cellular processes, including signal transduction, cytoskeletal organization, intracellular transport, and chromatin architecture. In signaling, they help coordinate interacting components; in structural and transport systems, they support organization and movement; and in chromatin, they contribute to the arrangement of cellular genetic material.
Their connecting role allows linker proteins to participate in different kinds of cellular organization without being limited to one system. The same general interaction principle can help coordinate signaling components, organize cytoskeletal structures, or support intracellular transport. Studying these contexts shows how molecular connections contribute to both communication and physical organization inside cells.
Linker proteins are useful research subjects because changes in their interactions can affect cellular communication and structure. Those effects provide a way to investigate how biological systems develop, how disease mechanisms arise, and where therapeutic strategies might influence disrupted molecular organization. Their relevance comes from connecting molecular interactions with broader cellular outcomes.