{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

4-Cell Communication Figs BW

Signaling molecules bind the g protein is split as

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: n previous slide. in this case the enzyme activated is not adenyl cyclase but actually phospholipase C, a membrane-bound enzyme. this second messengers are metabolize-membrane lipids. phospho C catalyze conversion of structural lipid pho inositol to lipid subunits, one which is soluble, the other is nonsoluble. the soluble lipid subunits is IP3 (diffuse to cytoplasm). the DAG is nonsoluble, remain in membrane. IP3's main function in cells is to release calcium from internal stores. the purple thing is smooth ER. there are calcium ATPases in the ER that pump calcium into the lumen of ER. the ER/SR in muscle cell sequester (hides calcium) by store it into lumen of ER-this help maintain low ca in cytoplasm (enabling local small increase of calcium to serve as second messenger) and also provide a store for the selective release of calcium in times needed. calcium is release from store in the lumen of the ER by IP3 binding to a calcium ion channel in the ER membrane. calcium channel open, calcium diffuse out. calcium cause ce...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern