Category: Lab Notes: Cell Biology
Cellular Transport
Cellular transport refers to the movement of substances into, out of, and within cells, and it is essential for maintaining…
Transcellular Transport Vs Paracellular Transport Vs Transcytosis
Criteria Transcellular Transport Paracellular Transport Transcytosis Remarks Definition Movement of molecules through the cell, crossing apical and basolateral membranes Movement…
Transcytosis
Transcytosis is a specialized cellular process that enables the transport of macromolecules across a cell. Unlike typical transcellular transport, which…
Paracellular Transport in Stomach Epithelium
Paracellular transport in the stomach epithelium plays a crucial but highly regulated role in maintaining mucosal homeostasis and barrier function. …
Paracellular Transport
Paracellular transport refers to the movement of substances across epithelial or endothelial barriers by passing through the space between adjacent…
Tight Junction Vs Adherens Junction
Criteria Tight Junction (Zonula Occludens) Adherens Junction (Zonula Adherens) Remarks Primary Function Acts as a barrier to prevent paracellular transport…
G Protein-Coupled Receptor (GPCR) Signaling
G protein-coupled receptor (GPCR) signaling represents one of the largest and most versatile signaling systems in eukaryotic cells. These receptors…
JAK-STAT Pathway
The JAK-STAT pathway provides a direct route for transmitting signals from cell surface receptors to the nucleus. When cytokines or…
Cell Signaling
Cell signaling is a sophisticated system of communication that governs basic cellular activities and coordinates cell actions. This intricate network…
Receptor Tyrosine Kinases (RTKs)
Receptor tyrosine kinases (RTKs) are cell surface receptors that play fundamental roles in cellular signaling. These transmembrane proteins regulate crucial…
Tyrosine Kinases (TKs)
Tyrosine kinases (TKs) are enzymes that catalyze the transfer of phosphate groups from ATP to tyrosine residues on proteins. They…
Non-Receptor Tyrosine Kinases (NRTKs)
Non-receptor tyrosine kinases (NRTKs) are cytoplasmic enzymes that play crucial roles in intracellular signaling. Unlike receptor tyrosine kinases, NRTKs lack…
Src Family Kinases (SFKs)
Src family kinases (SFKs) are non-receptor tyrosine kinases that play central roles in various cellular processes. The family includes nine…
Janus Kinases (JAKs)
Janus kinases (JAKs) are non-receptor tyrosine kinases that play essential roles in cytokine signaling and cellular regulation. The JAK family…
Ectopic Expression Vs Heterologous Expression
Criteria Ectopic Expression Heterologous Expression Remarks Definition Expression of a gene in a different tissue, cell type, or subcellular location…