During infection, most bacteria remain in extracellular spaces and use a specialized mechanism, the type III secretion system (T3SS)

TLS Online TPP Program

#Id: 2771

#Unit 13. Methods in Biology

More detailed footprinting requires a smaller molecule that can

fit into the nooks and crannies of the DNA–protein complex and reveal more of the subtleties of the interaction. A favorite tool for this job is the methylating agent dimethyl sulfate (DMS).

TLS Online TPP Program

#Id: 9094

#Unit 4. Cell Communication and Cell Signaling

Phospholipase C cleaves a phospholipid known as PI(4,5) P2, generating two second messengers: 

diffusible IP3 and membrane-bound DAG

TLS Online TPP Program

#Id: 3776

#Unit 1. Molecules and their Interaction Relevant to Biology

Elements are made of atoms. While the atoms may have different weights and organization, they are all built in the same way.

TLS Online TPP Program

#Id: 6789

#Unit 3. Fundamental Processes

The piRNAs which are 24–34 nucleotides long are derived in a manner that does not involve a dsRNA precursor

piRNAs are generated by processing long single-stranded transcripts covering so-called piRNA clusters found in the genome. This processing does not require Dicer.

TLS Online TPP Program

#Id: 10526

#Unit 4. Cell Communication and Cell Signaling

After cleavage by caspase-3, truncated XKR8, together with either basigin (BSG) or neuroplastin (NPTN), undergoes dimerization and activation and translocates

phospholipids in both directions.