AKT/PKB Signaling Pathway | PI3k Signaling

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  • Опубликовано: 9 июн 2020
  • This video will be encompass the AKT/PKB Signaling Pathway .
    The Akt Pathway, or PI3K-Akt Pathway is a signal transduction pathway that promotes survival and growth in response to extracellular signals. Key proteins involved are PI3K (phosphatidylinositol 3-kinase) and Akt (Protein Kinase B).
    Initial stimulation by one of the growth factors causes activation of a cell surface receptor and phosphorylation of PI3K. Activated PI3K then phosphorylates lipids on the plasma membrane, forming second messenger phosphatidylinositol (3,4,5)-trisphosphate (PIP3). Akt, a serine/threonine kinase, is recruited to the membrane by interaction with these phosphoinositide docking sites, so that it can be fully activated.[1] Activated Akt mediates downstream responses, including cell survival, growth, proliferation, cell migration and angiogenesis, by phosphorylating a range of intracellular proteins. The pathway is present in all cells of higher eukaryotes and is highly conserved.
    There are multiple types of phosphoinositide 3-kinase but only class I are responsible for lipid phosphorylation in response to growth stimuli.
    Akt resides in the cytosol in an inactive conformation, until the cell is stimulated and it translocates to the plasma membrane. The Akt PH domain has a high affinity for second messenger PI(3,4,5)P3, binding to it preferentially over other phosphoinositides.[11] Thus PI3K activity is essential for translocation of Akt to the membrane. Interaction with PI(3,4,5)P3 causes conformational changes and exposure of phosphorylation sites Thr308 in the kinase domain and Ser473 in the C-terminal domain. Akt is partially activated by phosphorylation of T308 by PDK1. Full activation requires phosphorylation of S473, which can be catalysed by multiple proteins, including phosphoinositide-dependent kinase 2 (PDK2), integrin-linked kinase (ILK)

Комментарии • 66

  • @yizhang4885
    @yizhang4885 2 года назад +5

    Very detailed explanation, it’s very helpful, many thanks🙏

  • @abiodunadegbesan1668
    @abiodunadegbesan1668 2 года назад +2

    Thank you so much, for the well explained concept

  • @carlgustafssonwold7861
    @carlgustafssonwold7861 3 года назад +5

    Thank you for this amazing lecture!

  • @prabhudasnair7914
    @prabhudasnair7914 4 года назад +3

    Mind-blowing, Excellent
    What an explanation 👍👍👍👍👍

    • @hussainbiology
      @hussainbiology  4 года назад

      thanks for appreciation..Glad to know that it helps ✌️

  • @mulugetamelku4834
    @mulugetamelku4834 2 года назад +1

    Great!
    Thanks!!

  • @mohdshahwaj5454
    @mohdshahwaj5454 4 года назад +1

    Thank you sir g....

  • @Lee_____________
    @Lee_____________ Месяц назад

    Thanks a lot!

  • @FarheenFathima397
    @FarheenFathima397 3 года назад

    Thank you for making this video sir .

    • @hussainbiology
      @hussainbiology  3 года назад +1

      thanks Farheen for appreciation... Glad it helps

  • @priyakamboj5850
    @priyakamboj5850 3 года назад +1

    Amazing explained 😊😊😊😊thanku so. Much bro

  • @sammolepo
    @sammolepo 7 месяцев назад +1

    This is rather good. Thank you.

  • @Kaur_2343
    @Kaur_2343 Год назад

    Thnku sir for making this video 🙏🙏it cleared my doubts....

    • @beinghuman4457
      @beinghuman4457 3 месяца назад

      tum yaha kya kr rhe ho..
      ye toh madarasa chaap hai na ..

  • @subhadipdas2482
    @subhadipdas2482 4 года назад +2

    Very good explanation 🔥

    • @hussainbiology
      @hussainbiology  4 года назад +1

      thanks for appreciation..Glad to know that it helps ✌️

  • @nishatfatima2091
    @nishatfatima2091 4 года назад +2

    Thank you sir , 🙏

  • @AsmaaKholo-ki6qx
    @AsmaaKholo-ki6qx 2 месяца назад +1

    Thank you for explaining it is very good video ❤

    • @hussainbiology
      @hussainbiology  2 месяца назад

      Thanks for appreciation....Glad it helps

  • @kanicasharma1105
    @kanicasharma1105 2 года назад +1

    sir are these related to toll like receptors?

  • @proudpalestinian3344
    @proudpalestinian3344 2 года назад

    thanks !

  • @shwethakrishna3716
    @shwethakrishna3716 3 года назад +1

    Thanks sir ji

  • @karishmarout1038
    @karishmarout1038 Год назад +1

    You are amazing 🤩

  • @darkartsninja
    @darkartsninja 9 месяцев назад +1

    Thank you so much for this lecture! Which are the specific residues on p85 are phosphorylated?

    • @hussainbiology
      @hussainbiology  9 месяцев назад

      Tyrosine 688 residue of P85 are phosphorylated

  • @dyaneshwarsontakke51
    @dyaneshwarsontakke51 4 года назад +2

    Best videos...sir

  • @peyman2965
    @peyman2965 7 месяцев назад +1

    Ur the goat ❤

    • @hussainbiology
      @hussainbiology  7 месяцев назад

      thanks for appreciation....lots of love

  • @aryas6282
    @aryas6282 Год назад +1

    👌

  • @ammaramehak9473
    @ammaramehak9473 4 года назад +2

    nice video sir plzzzzzz complete eukaryotic tranlation

  • @biology_mcqs3037
    @biology_mcqs3037 4 года назад +1

    👍

  • @rubikhan8036
    @rubikhan8036 2 года назад +1

    Kindly tell me plz this pathway is used in non Hodgkin's cancer plzzz bcz tomorrow is my ppt

    • @hussainbiology
      @hussainbiology  2 года назад

      Yes.. this signalling pathway is deregulated in non-Hodgkin’s lymphoma

  • @sonyashokouhy7368
    @sonyashokouhy7368 2 года назад +1

    ıt is great

    • @hussainbiology
      @hussainbiology  2 года назад

      thanks for appreciation..Glad it helps ✌️

  • @adriansanchez6301
    @adriansanchez6301 3 года назад +1

    where are the information for this video?

    • @hussainbiology
      @hussainbiology  3 года назад

      ?????

    • @DreadedCup
      @DreadedCup 3 года назад

      I guess he's asking for the resources you used. The books.

  • @shbangash437
    @shbangash437 3 года назад +1

    Sir I need your help from where I can get these pathways any book for this

    • @hussainbiology
      @hussainbiology  3 года назад +1

      hello sir.... U can't get all pathways from a single book..

    • @hussainbiology
      @hussainbiology  3 года назад +1

      Alberts Cell Biology
      Lodish Cell Biology
      Development Biology by Gilbert

    • @shbangash437
      @shbangash437 3 года назад

      @@hussainbiology ok sir I am going to download these books

    • @shbangash437
      @shbangash437 3 года назад

      @@hussainbiology Sir can I get these chapters from where you have covered all these pathways

    • @hussainbiology
      @hussainbiology  3 года назад +1

      @@shbangash437 these are books dear.. U can download them from Internet easily

  • @shbangash437
    @shbangash437 3 года назад +1

    Hello sir

  • @servandohernandezgalaviz5664
    @servandohernandezgalaviz5664 2 года назад

    what is a monomore? or does he just have a bad accent ?

  • @cosmicvlog8196
    @cosmicvlog8196 3 года назад +2

    It would be better to understand if you speak in hindi it will be like a story

  • @vishalkhandelwal01
    @vishalkhandelwal01 4 года назад +1

    Rrre