Biosignaling | Receptor Tyrosine Kinase (RTKs) Autophosphorylation [Part 1/2]

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Welcome to Catalyst University! I am Kevin Tokoph, PT, DPT, and this is one of my earlier biochemistry videos where we discuss receptor tyrosine kinases (RTKs) and how they perform auto-phosphorylation.

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Комментарии
Автор

Thank you so much! I was so very perplexed by cross-talk and auto-phosphorylation and this video finally cleared up everything.

crystaljones
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Thank you! You explained all the concepts in a clearly and concisely way.

vadimpisarenco
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Thanks for the video, very clear.  I was under the impression that the apo-insulin receptor was a dimer which made it unique compared to the ligand induced dimerization observed with most RTKs.  

xavier
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Is there anything to determine Tyr on which of the domain undergoes Phosphorylation first (beta 1 or beta2) or is it random? and When catalytic domain is active and each of the domain also has Tyr residues on themselves, why is there cross phosphorylation, why cant each TK phosphorylate Tyr residue on the same receptor?

alinasapkota
Автор

Do you know if the same type of mechanism happens for bacterial phoQ and/or pmrB autophosphorylation? Do they also dimerize and each catalyze phosphorylation of the other?

chrish