+AK LECTURES (Andrey K) same. idk what i'd do without AK me and my friend always say the following after lecture: "time for AK to teach us what just happened"
Hello Andrey, I just wanted to start off by saying I ABSOLUTELY LOVE YOU. Your lectures are so well put together and conceivable. I am currently studying for the MCAT while taking biochemistry at university, and your videos supplement my studying like no other resource known to man. So thank you for your time and effort and passion for the sciences, because it is rubbing off on me like no other.
THANK YOU You are saving me the hussle of having to figure out an entire chapter on my own! I love every single video! You make everything sound so logical and easy... Thank you for sharing your wisdom in this perfect way!
Med Student from Bogotá, Colombia, and i want you to know that this video makes me so happy because it was what i were looking for, thank you so much!!
Medical student from Russia. Thank you a lot for these well explained and high informational lectures! I will recommend you to biochemistry teachers and students here.
You are a gifted person, capable of explaining such a complex matter in a clear, organized, and understandable way. Thank you very much for your video and congratulations on your teaching skills.
I love your lecture so much, they are so clarify and easy to understand. I'm second language, but your pronunciation is really good that I can understand the whole video without any problems. Thank you so much for posting these useful video.
Excellent videos; all of them. Could you one day do one on insulin resistance, and the role of Threonine/serine receptors, DAG and adipose tissue hormones like resistin, on such insulin resistance? Thanks a bunch
Long time ago i thought ur lectures will not be useful to me But today when i actually watched one till the end i thought mm wrong.... U r seriously a fab teacher.. 🙃❤️
Your lecture are awesome. Just a tiny bit of correction in this one. Protein kinase B [AKT here] gets bound to PIP-3, when PIP2 gets phosphorylated by PI3K. When so bound to PIP3, then PDK-1 acts on it phosphorylating it. {source: Lehninger- 6ed, page-456}. Cheers for your awesome videos!
I've been watching a lot of videos about how insulin and glucagon act together to modulate the concentration of glucose in the blood. If a person is on a carnivore diet and has effectively eliminated carbohydrates from the diet, what are the analogs of insulin and glycogen for moderating the concentration of ketones in the blood? Thanks!!!
Thanks for taking the time to make such a comprehensive lecture. One question: what turns off the pathway? In GPCR systems the GTP is degraded to GDP - how about RK systems?
Enzymes that synthesize glycogen are active when dephosphorylated (glycogen synthase ), so I don't understand how akt phosphorylating activates it? Can you clear this doubt?
In the book Principles of Biochemistry by Lehninger it's mentioned that PKB aka Akt binds to PIP3 which is then activated by PDK1. However in your explanation you mention PDK1 binds to PIP3 for its activation and then the activated PDK1 goes on to activate Akt. So which order is correct?
Awesome video but I think there may be a mistake towards the end? Forgive me if I'm wrong. I've learned that Insulin leads to the activation of certain protein phosphatases, which will ultimately dephosphorylate various enzymes: glycogen synthase (active when dephosphorylated) PFK-2/FBase-2 complex (PFK-2 active when dephosphorylated in the liver cell, producing more F26BP and thus allosterically upregulation PFK-1 for glycolysis) glycogen phosphorylase (inhibiting glycogen breakdown) phosphorylase kinase (inhibiting the activation of glycogen phosphorylase) towards the end, you mention that AKT will phosphorylate enzymes that synthesize glycogen from glucose molecules. Are we talking about a different enzyme than glycogen synthase? Thanks! edit: looks like you were likely referring to the phosphorylation of glycogen synthase kinase, deactivating it, and subsequently keeping glycogen synthase in its active form.
Passing here without thanking you is a shame!
So THANKS A LOT!
Mate, you explained in 14 minutes something that has troubled me for a whole year! Keep up the good work!
AK Lectures are LIFE :O I used them for physics and now they're saving me in BioChem, THANK YOU
+Juliette Le Corre YES! you're welcome! :)
+AK LECTURES (Andrey K) same. idk what i'd do without AK me and my friend always say the following after lecture: "time for AK to teach us what just happened"
Very nice lectures
Medical student from Glasgow, Scotland, here. This really helped me!
Hello Andrey, I just wanted to start off by saying I ABSOLUTELY LOVE YOU. Your lectures are so well put together and conceivable. I am currently studying for the MCAT while taking biochemistry at university, and your videos supplement my studying like no other resource known to man. So thank you for your time and effort and passion for the sciences, because it is rubbing off on me like no other.
THANK YOU
You are saving me the hussle of having to figure out an entire chapter on my own! I love every single video! You make everything sound so logical and easy...
Thank you for sharing your wisdom in this perfect way!
Med Student from Bogotá, Colombia, and i want you to know that this video makes me so happy because it was what i were looking for, thank you so much!!
This channel is god sent! I greatly appreciate the clear structured points and use of graphics!
Great speaker making use of clear bullet points and diagrams. Keep up the good work!
Medical student from Russia.
Thank you a lot for these well explained and high informational lectures!
I will recommend you to biochemistry teachers and students here.
Awesome! thanks for watching :)
Awesome explanation!! The best I have seen so far in CZcams, thank so much!!
nothing can't express my thank for you. Wonderful & simplified lecture. Good job.
This is explained so well, and the whiteboard step by step summary and associated illustrations work perfectly together.
Your lectures have been helping me in my medical learning, thank you, great work
You're helping another med student here. thank you!
Hi Andrey. This lecture is excelent, the best I ever seen. Congrats and thank you very much!
Thank you so much for your videos. Just finished with an A and B+ in physics 2 and biochem and your videos were a life saver!!!
God bless you mate. I have never left here unsatisfied
You are a gifted person, capable of explaining such a complex matter in a clear, organized, and understandable way. Thank you very much for your video and congratulations on your teaching skills.
You are a great lecturer. Thank you so much for your vids
You are just amazing and you just made biochemistry more interesting! Love your videos!
I love your lecture so much, they are so clarify and easy to understand. I'm second language, but your pronunciation is really good that I can understand the whole video without any problems. Thank you so much for posting these useful video.
One of the best videos iv'e ever seen!! thank you :)
I had to come here when everything else is confusing. But man, you more than delivered on this. Thank you so much.
So glad that i found you so early
Respect 🙏
Best online teacher! regards from Mexico
Thanks Andrey! Incredible!
The best video ever... clear explanation👌👌.... had just what I wanted.... THANK YOU!!🙏🙏
I always love watching your videos Sir. Thank you so much 💖
thank you!! your lecture are incredibly clear!
love love love this thank you so much!
Excellent videos; all of them. Could you one day do one on insulin resistance, and the role of Threonine/serine receptors, DAG and adipose tissue hormones like resistin, on such insulin resistance? Thanks a bunch
thank ak lectures, you helped me understand about signal transduction
very useful lecture, simplifies everything! Thanks! ;)
best explanation ever THANK U SO MUCH
thank you for this detailed explanation, i really benefited from this.
Awesome, Thank you for the great explanation!
wow, I'm so thankful ! Understood everything!
Brilliant explanation. Thanks a lot!!
Long time ago i thought ur lectures will not be useful to me
But today when i actually watched one till the end i thought mm wrong....
U r seriously a fab teacher.. 🙃❤️
thank you so much, your lectures save me
Thanks this makes much more sense!
Thanks! Wonderful explanation.
Thanks for these great lectures. always
Thank you sir! You are a big help and life saver! :D
Brilliant as always. Thank u 🙏
Congrats! Simple and clear
another great video,with clear drawings.thank you! :)
absolutely fantastic, thanks a lot.
Thank you, you‘re saving me once again :)
Sir great explained video 🙏🙏
excellent content!
Very helpful video. Would be even greater if we could download your notes for each lecture on your website.
Really helpful, thank you!
This is pure gold
You've just saved my brain cells, thank you lol
Great video, thanks a lot!
very clear explanation. Thank you
Great work ❤🎉
This is great. Thank you
wow what a clear explanation.
very clear explanation. thanks heaps....
love you so much! thank you!!!!!!!
brilliant channel
Your lecture are awesome. Just a tiny bit of correction in this one. Protein kinase B [AKT here] gets bound to PIP-3, when PIP2 gets phosphorylated by PI3K. When so bound to PIP3, then PDK-1 acts on it phosphorylating it. {source: Lehninger- 6ed, page-456}. Cheers for your awesome videos!
Amazing!!! Thank u so much!
Excellent video thanks for sharing
Great lecture!!
Well organized lectures!
WOW for the effort.. that board...
Great video! thx
Excellent 👍
Excellent video
i wish you are my bio and anatomy prof for 4 years of uni. i really do
can you talk about the regulatory points, negative and positive feedbacks
I've been watching a lot of videos about how insulin and glucagon act together to modulate the concentration of glucose in the blood.
If a person is on a carnivore diet and has effectively eliminated carbohydrates from the diet, what are the analogs of insulin and glycogen for moderating the concentration of ketones in the blood?
Thanks!!!
thank you it's GREAT!!!!
This face = great lectures!
thank you for the biochemistry help !!! you are an amazing lecturer
and this is coming from a professional college tutor you know your methods well
Nice and neat!
THANK YOU FOR LIVING ON PLANET EARTH !
Beautiful
thanks a lot ...
Great!
You should be the Biochem professor at FIU
U r amazing sirr..alaw vedio
Thank you so much ❤️🥺
Great! Thank u sir ..
Thanks for taking the time to make such a comprehensive lecture. One question: what turns off the pathway? In GPCR systems the GTP is degraded to GDP - how about RK systems?
there are various phosphatases that regulate the RK pathways...
Enzymes that synthesize glycogen are active when dephosphorylated (glycogen synthase ), so I don't understand how akt phosphorylating activates it? Can you clear this doubt?
Thank you very much
I got an A on my biochem test because of you!! (something I never thought was possible for me!!)
Masters in molecular biology and biotechnology from Uganda
Thank you so much :) !!
In the book Principles of Biochemistry by Lehninger it's mentioned that PKB aka Akt binds to PIP3 which is then activated by PDK1. However in your explanation you mention PDK1 binds to PIP3 for its activation and then the activated PDK1 goes on to activate Akt. So which order is correct?
I don't read the textbook anymore I just watch your videos.
perfect.thanks
thank you so much for your great lecture! :)
Luiza Batirova you're welcome Luiza, thanks for watching! :)
AK LECTURES do you have a lecture about glucagon transduction pathway?
No i dont.
Awesome video but I think there may be a mistake towards the end? Forgive me if I'm wrong. I've learned that Insulin leads to the activation of certain protein phosphatases, which will ultimately dephosphorylate various enzymes:
glycogen synthase (active when dephosphorylated)
PFK-2/FBase-2 complex (PFK-2 active when dephosphorylated in the liver cell, producing more F26BP and thus allosterically upregulation PFK-1 for glycolysis)
glycogen phosphorylase (inhibiting glycogen breakdown)
phosphorylase kinase (inhibiting the activation of glycogen phosphorylase)
towards the end, you mention that AKT will phosphorylate enzymes that synthesize glycogen from glucose molecules. Are we talking about a different enzyme than glycogen synthase?
Thanks!
edit: looks like you were likely referring to the phosphorylation of glycogen synthase kinase, deactivating it, and subsequently keeping glycogen synthase in its active form.
Thankyou sir