Transmembrane domain of a transmembrane protein is present as_______________(a) Alpha-helix(b) Beta-sheet(c) Triple beta-sheet(d) None of the mentionedI had been asked this question in class test.I want to ask this question from Cellular Membranes topic in section Cellular Membranes of Cell Biology

Transmembrane domain of a transmembrane protein is present as_________

1.	Transmembrane domain of a transmembrane protein is present as_______________(a) Alpha-helix(b) Beta-sheet(c) Triple beta-sheet(d) None of the mentionedI had been asked this question in class test.I want to ask this question from Cellular Membranes topic in section Cellular Membranes of Cell Biology
Answer» Right ANSWER is (a) Alpha-helix To explain I WOULD say: TRANSMEMBRANE proteins extend on both sides of the membrane and are present mostly as alpha helices and clusters of helices CALLED the Helical bundle. Some proteins are also present as beta barrel. They are made up of beta sheets that ROLLS up into a tube like shape.

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