Smad7 binds to the activated RI receptors and blocks its ability to phosphorylate Smad2 or Smad3. 

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

TLS Online TPP Program

#Id: 1316

#XL - T Zoology

G protein coupled receptor contains seven membrane-spanning α helices & heterotrimeric G protein.

TLS Online TPP Program

#Id: 1317

#XL - T Zoology

Muscarinic acetylcholine receptor is coupled to a Gαi protein.

TLS Online TPP Program

#Id: 1318

#XL - T Zoology

Rod cells sense light via light-sensitive GPCR known as Rhodopsin.

TLS Online TPP Program

#Id: 1319

#XL - T Zoology

The heterotrimeric G protein coupled to rhodopsin, called Transducin.