Which of the following is correct about the common types of...

Which of the following is correct about the common types of protein folding? A. Common patterns of protein folding include a-helix and b-sheet. B. Intertwined a-helices can form coiled-coil structures. C. b-sheet can be either antiparallel or parallel. D. a-helix and b-sheet allow many proteins to form separate domains. E. Many proteins contain multiple copies of the same subunit.

Transcript

00:02 Hello there for this question.

00:04 They brought saying how a beta sheet is one of the most common secondary structure described in proteins.

00:10 And they want to know which of the following statement is true for the sheets represented above.

00:19 And we have a list of options that describes about the image that we see right in front of us.

00:30 So let's bring up so they brought up saying sheet 1 is a representation of a parallel sheet so let's see is that true? yeah, we can say it's true because you look at the image we can see how the oxygen yes on one end it might not match up with the nitrogen in front of it but if we go to the other side we can see how how the oxygen match up in sheet one.

01:05 And then brought up saying how sheet two is a representation of an anti -parallel sheet.

01:14 And let's look.

01:16 And that is true because we can see, in a sense, they both kind of marry each other.

01:23 So it's not like the reverse.

01:25 It's like they both marry each other.

01:28 The third one, they say how sheet one will have four hydrogen.

01:34 Bonds holding the two strands.

01:39 So is that true that they will have four hydrogen bonds? let's see.

01:45 That one, two, three.

01:47 Yep.

01:49 That clears out for c.

01:52 And i'll look at d.