Inactive PKA is a tetramer consisting of- 

two regulatory (R) subunits

two catalytic (C) subunits

TLS Online TPP Program

#Id: 8343

#XL - Q Biochemistry

formin family members have two adjacent domains:

FH1- rich in proline, landing site for profilin–ATP–G-actin

FH2 - form a dimer and nucleate filament assembly

TLS Online TPP Program

#Id: 7742

#XL - Q Biochemistry

Atomic radii: The atomic radii of an atom depends on its position in the periodic table.

We can never determine the atomic radius of an atom because there is never a zero probability of finding an electron, and thus never a distinct boundary to the atom.

All that we can measure is the distance between two nuclei (internuclear distance).

TLS Online TPP Program

#Id: 8060

#XL - Q Biochemistry

Histidine: Two component signalling, C2H2 zinc finger, Hemoglobin, His6-NiNTA column.

Isoleucine: AATS proofreading, RTK

Leucine: Toll like receptors, LRR, 

TLS Online TPP Program

#Id: 8640

#XL - T Zoology

In vertebrates, Rb is the major guardian of the cell cycle, integrating information about DNA damage and cell growth

TLS Online TPP Program

#Id: 7038

#XL - T Zoology

Darwin’s evolutionary theory - Common descent