Activated IRAK1/2, binds TRAF6, an E3 ubiquitin ligase, to the signalsome, and promotes the formation of an extended 2-D lattice formed by TRAF6-TRAF6 interactions.

TLS Online TPP Program

#Id: 9472

#XL - T Zoology

Two mechanisms for terminating cytokine signaling:

1. Short-term regulation: SHP1

2. Long-term regulation: SOCS proteins

TLS Online TPP Program

#Id: 9473

#XL - T Zoology

SHP1 a phosphotyrosine phosphatase, contains:

SH2 domain  & Phosphatase domain

TLS Online TPP Program

#Id: 9474

#XL - T Zoology

SHP1 

Binding of an SH2 domain to a phosphotyrosine in the activated receptor unmasks its phosphatase catalytic site

TLS Online TPP Program

#Id: 9475

#XL - T Zoology

SHP1 causes removal of the phosphate from tyrosine in the activation loop of JAK2 & inactivates the JAK kinase.

TLS Online TPP Program

#Id: 9476

#XL - T Zoology

SOCS proteins 

expression is induced by the STAT5 in erythroid progenitor cells, inhibit or permanently terminate signaling over longer periods

TLS Online TPP Program

#Id: 9477

#XL - T Zoology

All SOCS proteins contains:

SH2 domain

SOCS box