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[Perparation and comparative analytical study of cat liver microsomes]
Biochimie
|January 1, 1976
Summary
Differential centrifugation separated cat liver homogenates into distinct cellular fractions. Biochemical analysis revealed the composition and distribution of cellular components within these fractions, confirming subcellular localization.
Area of Science:
- Cell Biology
- Biochemistry
- Subcellular Fractionation
Context:
- Investigating the subcellular architecture of cat liver cells.
- Utilizing differential centrifugation to isolate cellular components.
- Characterizing the biochemical makeup of isolated cellular fractions.
Purpose:
- To fractionate cat liver homogenates using differential centrifugation.
- To determine the biochemical composition and distribution of 22 constituents within these fractions.
- To identify marker enzymes for various organelles and confirm subcellular localization through morphological analysis.
Summary:
- Cat liver homogenates were fractionated into four particulate fractions and a supernatant via differential centrifugation.
- Biochemical assays analyzed 22 constituents, including marker enzymes for mitochondria, lysosomes, peroxisomes, plasma membranes, endoplasmic reticulum, Golgi apparatus, and cell sap.
- Morphological analysis corroborated the biochemical findings, with the microsomal fraction showing moderate contamination and containing Golgi complex and plasma membranes.
Impact:
- Provides a detailed biochemical profile of subcellular fractions from cat liver.
- Establishes a method for isolating and characterizing organelles from feline liver tissue.
- Contributes to understanding liver cell composition and organelle distribution in mammals.