Cytotoxic T cells release granules containing the proteins perforin and granzyme-B. 

TLS Online TPP Program

#Id: 7732

#Section 2: General Biology

Atoms are indivisible particles that can't be created or destroyed in a chemical reaction.

TLS Online TPP Program

#Id: 8601

#Section 3: Genetics, Cellular and Molecular Biology

TLS Online TPP Program

#Id: 8034

#Section 2: General Biology

Nonpolar amino acids have three ionisations zones

1. 1--------pK1 – charge +1

2. pK1---------pK2 charge 0

3. pK2---------14 charge -1

TLS Online TPP Program

#Id: 7759

#Section 2: General Biology

Some elements exist naturally as molecules. For example, hydrogen and oxygen exist as two-atom molecules.

TLS Online TPP Program

#Id: 8856

#Section 3: Genetics, Cellular and Molecular Biology

Smc1 and Smc3 are members of the structural

maintenance of chromosomes (SMC) protein family, characterized by globular domains at the N- & C-termini connected by a long α helix, bind and hydrolyze ATP.