M6P residues are generated in the cis-Golgi by two Golgi-resident enzymes. 

1. N-acetylglucosamine (GlcNAc) phosphotransferase
2. Phosphodiesterase

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

TLS Online TPP Program

#Id: 9478

#XL - T Zoology

SOCS box, 

Recruits E3 ubiquitin ligases that polyubiquitinylate the receptor and the JAK kinase & marks the proteins for destruction by a proteasome