The cellular localization of the polymers was confirmed by subcellular fractionation of the cells, followed by digestion with endoglycosidase H (Figure 2C and Supplemental Figure 3C), an enzyme that removes N - linked glycans still in the high mannose ER form but does not affect oligosaccharide chains after the addition of sialic acid in the Golgi apparatus.
Analysis of
cellular localization of known actin cross-linking proteins in mouse melanoma B16F1 cells revealed that fascin was specifically localized along the entire length of all filopodia, whereas other actin cross-linkers were not.
Not exact matches
Although no functions could be assigned to three
of the proteins, bioinformatics analysis suggested that the remainder are involved in a wide range
of biological processes, including reproduction,
cellular metabolic processes, multicellular organismal growth, developmental processes, growth, locomotion, response to stimuli,
localization and biological regulation.
Her research is at the interface between bioimaging and proteomics, and aims to define the spatiotemporal organization
of the human proteome at a subcellular level in an effort to understand how variations and deviations in
localization contribute to
cellular function as well as disease.
Our lab is interested in identifying the
cellular and molecular mechanisms involved in the organization and maintenance
of the synapse with a specific focus on the control
of neurotransmitter receptor expression and
localization.
Autoinhibition regulates
cellular localization and actin assembly activity
of the diaphanous - related formins FRLα and mDia1.
Next steps: Future measurements will focus on identifying structural changes in the core complex
of RNAP that modulate its
cellular localization and function.
Using these protocols we hope to contribute to a better description
of the molecular composition,
localization, and functions
of cellular structures in 3D.
Overexpression
of fluorescently tagged proteins can lead to improper protein
localization, protein aggregation, or disruption
of normal protein function, and ultimately misinterpretation
of the protein's
cellular role.