My teacher for AP Bio doesn’t explain well, and I was wondering if anyone on here could help me out or knew any good videos to explain it?
I understand that the secondary structure of a protein consists primarily of alpha helices and beta-pleated sheets. But various resources state that certain amino acids tend to form certain alpha helices/beta pleated sheets. If secondary structure depends on the bonds between the amino acid backbone, does the R-group matter here?
I think I’m also getting confused with what proteins really look like. They still keep those alpha helices/beta sheets in tertiary structure too, right?
I've read about it on websites but haven't been able to understand/visualise the tertiary structure.
P.s. found this learning game (it's pretty interesting tbh) and understood to some extent what quartnery means but still clueless about secondary
https://preview.redd.it/e421d20mopi71.png?width=2436&format=png&auto=webp&s=b0d296803505eb0018c610ca1b38764d4ba1720c
I read that tertiary structure involved ionic bonds, among others, and that quaternary structure involved the same types of bonds, but was just between different proteins rather than within a given protein. I also read though that most bonds in quaternary structure involve hydrophobic side chains, because the hydrophilic ones are likely involved in bonding with water.
Is it the case that polar side chains are involved in tertiary structure but not quaternary?
My first thought was that this was a little weird. However, is it because some enzymes could be monomers o in that case there wouldn't be a quaternary structure and thus this is the most reasonable answer?
https://preview.redd.it/ijtr4c1a0og71.png?width=1198&format=png&auto=webp&s=21e955fdd31a60eea322d1b0045d0a2487eff6ec
So I'm just completing my technical report, and was wondering if the walkways in-between my two buildings would be secondary or tertiary structure? I've counted the glulam frame as primary, CLT wall/floor slabs and secondary, and stuff like the doors, windows and things like that as tertiary.
Do you organize by study/experiment or by program used to run the analysis? Secondary and tertiary meaning files coming out of the raw data.
I have always remembered both fibrous and globular proteins to be considered quarternary structures, however I am in a cell biology course and my professor is grouping them under tertiary. Do these structures fit better in tertiary or quarternary levels?
Journal of the American Chemical SocietyDOI: 10.1021/jacs.1c01168
Xiao-Qing Guo, Li-Peng Zhou, Shao-Jun Hu, Li-Xuan Cai, Pei-Ming Cheng, and Qing-Fu Sun
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I was wondering about this. Can proteins exist in primary structure secondary structure? I mean what if you have a strand of polar amino acids, wouldn't water just solvate it and then it'll be done with it?
I am a little confused on how pH can disrupt the stability of a protein's tertiary structure? For instance, if there is a protein that is stable at a pH of 7.0 but it is then transferred to pH of 11.0 and the protein loses its stable tertiary structure. I am assuming it has to do with the presence of H+ ions disrupting the bonds but could anyone give me a more specific reasoning?
I'm having trouble grasping the protein structure, any help would be appreciated! Sorry if this is a basic question, I can't find any answers online (or I'm not looking hard enough)
Thanks!!
I feel like I am missing something.
The best I can find are journal articles but they don’t really lay out the basics that I need to learn first. Thanks!!
for a protein structure that is completely folded, is it only the R groups from amino acids that are on the surface of the protein?
Journal of the American Chemical SocietyDOI: 10.1021/jacs.0c03353
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