Oxidation of iodine is mediated by thyroid peroxidase, a membrane-bound enzyme found in the thyrocyte apical membrane.

TLS Online TPP Program

#Id: 1911

#Unit 4. Cell Communication and Cell Signaling

T1 and T2 Transitional B Cells

TLS Online TPP Program

#Id: 4725

#Unit 13. Methods in Biology

Destructive method uses Folin reagent, Biuret, BCA, Coomassie Brilliant Blue and give absorbance at 660, 540, 562, 595 nm of wavelength respectively.

TLS Online TPP Program

#Id: 9294

#Unit 6. System Physiology – Plant

Nitrate reductase

Homodimers, two identical subunits

Each subunit with 100kD

Each subunit contains 3 prosthetic groups:

FAD, heme, and molybdenum complexed to pterin (an organic molecule). 

TLS Online TPP Program

#Id: 10399

#Unit 4. Cell Communication and Cell Signaling

Loss-of-function mutations:

1. A deletion of all or part of a gene.

2. A point mutation in the coding sequence that introduce a stop codon or a frameshift.

TLS Online TPP Program

#Id: 2647

#Unit 13. Methods in Biology

In G-less cassette, transcription will stop at the end of the cassette where the first G is required, yielding an aborted transcript of predictable size (based on the size of the G-less cassette, which is usually a few hundred base pairs long).