Actin polymerization in vitro proceeds in three steps:

1.Nucleation phase

2.Elongation phase

3.Steady-state

TLS Online TPP Program

#Id: 1326

#XL - T Zoology

GS, GPK, and GP are counteracted by a phosphatase called phosphoprotein phosphatase.

TLS Online TPP Program

#Id: 1327

#XL - T Zoology

Suppressor of cAMP/PKA signalling Pathway- cAMP PDE (hydrolyze cAMP to 5′-AMP)

TLS Online TPP Program

#Id: 1328

#XL - T Zoology

β-adrenergic receptors are deactivated by, β-adrenergic receptor kinase (BARK)

TLS Online TPP Program

#Id: 1329

#XL - T Zoology

Phospholipase C is activated by G proteins containing either Gαo or Gαq.

TLS Online TPP Program

#Id: 1330

#XL - T Zoology

Phospholipase C cleaves PI(4,5)P2, generating two second messengers:  IP3 and DAG

TLS Online TPP Program

#Id: 1331

#XL - T Zoology

The principal function of DAG is to activate protein kinase C.