Threonine is a beta-branched amino acid – Fact Check
Question asked:
“Threonine is a beta-branched amino acid.”
Summary
Threonine possesses a side chain that is branched at the β‑carbon, classifying it as a β‑branched amino acid alongside valine and isoleucine. This structural feature is consistently described in biochemical references.
Sources 58 searched
- Branched Chain Amino Acid - an overview | ScienceDirect Topics
Amino acids can be classified as nutritionally essential or nonessential amino acids on the basis of their dietary needs (essential) or the body’s ability to adequately synthesize the amino acids (nonessential) for normal growth and nitrogen balance. Histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine are essential amino acids, whereas alanine, asparagine, aspartic acid, glutamic acid, and serine belong to the nonessential amino acids.
- Branched-chain amino acids: physico-chemical properties ...
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- Bacterial Branched-Chain Amino Acid Biosynthesis - PMC - NIH
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- Branched-chain amino acids: enzyme and substrate regulation - PubMed
The three branched-chain amino acids (BCAAs) are the most hydrophobic of the amino acids and play crucial roles in determining the structures of globular proteins as well as the interaction of the transmembrane domains of membranous proteins with phospholipid bilayers.
- Amino Acid Side Chains, Branched at the beta-Carbon
Amino Acid Side Chains, Branched at the beta-Carbon
- Branched-chain amino acid - Wikipedia
Diets that meet or exceed the RDA for total protein (0.8 g/kg/day; 56 grams for a 70 kg person), meet or exceed the RDAs for branched-chain amino acids. Five enzymes participate in the parallel synthesis pathways for isoleucine, valine, and leucine: threonine dehydrogenase, acetohydroxyacid ...
- A Model for the Rapid Assessment of Solution Structures for 24-Atom Macrocycles: The Impact of β-Branched Amino Acids on Conformation | The Journal of Organic Chemistry
These 24-atom triazine macrocycles ... acid linker. Monomers comprising glycine and the β-branched amino acids threonine, valine, and isoleucine yield macrocycles G-G, T-T, V-V, and I-I, respectively....
- Amino acids with C-beta branching
Whereas most amino acids contain only one non-hydrogen substituent attached to their C-beta carbon, C-beta branched amino acids contain two (two carbons in Valine or Isoleucine; one carbon and one oxygen in Theronine) . This means that there is a lot more bulkiness near to the protein backbone, ...
- Secondary Structure 1: The Alpha Helix: | ditki medical and biological sciences
Write that beta-branched amino acids are threonine, valine and isoleucine, whose one-letter codes are T, V, and I.
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