There are about 90 million rod cells in the human retina, and each contains about 4x107 molecules of rhodopsin that are very densely packed in the membrane disks.

TLS Online TPP Program

#Id: 8947

#XL - T Zoology

An inhibitor of Kin4, called Lte1, localizes to the bud but is absent from the parent cell; it inhibits any residual Kin4 that leaks into the bud.

TLS Online TPP Program

#Id: 8948

#XL - T Zoology

When spindle microtubule elongation at the end of anaphase has correctly positioned segregating daughter chromosomes in the bud, Tem1 is converted into its active GTP-bound state, activating the protein kinase signaling cascade.

TLS Online TPP Program

#Id: 8949

#XL - T Zoology

TLS Online TPP Program

#Id: 1313

#XL - T Zoology

Two large classes of GTPase switch proteins-

Heterotrimeric G proteins

Monomeric G proteins

TLS Online TPP Program

#Id: 1314

#XL - T Zoology

GTP-binding switch proteins contains two domain-

Switch I- Thr-35

Switch II- Gly-60 

TLS Online TPP Program

#Id: 1315

#XL - T Zoology

GTPase superfamily of proteins- eIF2, EF1α, EF2, Ran, Sar, Rab, Rho, Rac, Cdc42