The next internal whorl is the corolla and is composed of petals. corolla may be also united gamopetalous (petals united) or polypetalous (petals free).

TLS Online TPP Program

#Id: 1342

#XL - T Zoology

HER3 lacks a functional kinase domain

TLS Online TPP Program

#Id: 1343

#XL - T Zoology

RAS is a small monomeric G-proteins.

TLS Online TPP Program

#Id: 1344

#XL - T Zoology

RAS is connected to the membrane by a prenylated (lipid) tail.

TLS Online TPP Program

#Id: 1345

#XL - T Zoology

All Ras have the CAAX motifs at the C-terminus.

TLS Online TPP Program

#Id: 1346

#XL - T Zoology

Post-translational modifications of the CAAX motifs determine the subcellular localization and correct biological function of Ras proteins.

TLS Online TPP Program

#Id: 1347

#XL - T Zoology

SOS – Ras GEF

NF1 - Ras GAP