Biochem - lab techniques Flashcards
PCR
denature, anneal premade primers, cool, elongate w/heat-stable DNA Pol
southern blot
DNA chopped up and searched for specific sequences
northern blot
RNA chopped up and searched for specific sequences
- good for levels of transcription and gene expression
western blot
protein run and labeled antibodies used to search for peptides
southwestern blot
ID’s DNA-binding proteins using labeled oligonucleotide probes
Enzyme-Linked ImmunoSorbent Assay (ELISA)
- 2 types: differentiate
- indirect: looks for antibody using an antigen
2. direct: looks for antigen using an antibody
FISH
probes bind to genes on chromosomes
localizes genes
RNAi
dsRNA synthesized complementary to target mRNA
when introduced into cell, will separate, latch onto target and knock it out
- reduces specific gene expression