Amino Acid Leucine

Amino Acid Leucine questions and answers

Learn more about Amino Acid Leucine at Diet & Health.net.

Q: Can the amino acid LEUCINE be found in Whey Protein drinks?
LEUCINE is the amino acid that they say can help one lose weight faster.

A: Here is a list of foods that are high in Leucine: Cottage cheese (dry) 4,500 mg/cup · Cottage cheese 3,294 mg/cup · Fish & other seafoods 1,000-10,000 mg/lb · Meats 2,000 -8,500 mg/lb · Poultry 3,500-8,500 mg/lb · Peanuts, roasted w skin 4,500 mg/cup · Sesame seeds 3,500 mg/cup · Dry, whole lentils 3,500 mg/cup Please also include a balanced diet, with some exercise. All this combined together would help in achieveing a healthy weight loss goodluck!

Q: I need to find Info in the amino acid:Leucine?
Is there a website I can go to, to find Info on this Amino Acid? I want to know how to find or get this...what foods, etc.? Thaks for any help

A: http://www.springboard4health.com/notebook/proteins_leucine.html good luck. When I worked at Whole Foods (for like, 10 years) we used to recommend whey protein if people wanted to use this for muscles. Good luck

Q: wat are the dna codes for the amino acid Leucine? list all the possible dna codes?
any ideas? thx

A: mRNA codons:- UUA,UUG,CUU,CUC,CUA,CUG DNA Triplets:- 5'TTA,TTG,CTT,CTC,CTA,CTG3' (From the coding or sense strand Not transcribed-the complementary strand is the one transcribed = the template strand 3'-->5')

Q: one of the codons specifying the amino acid leucine is 5'-CUA-3'. which of the following would correspend with
A. 5'-GAU-3' B. 5'-CUA-3' C.3'-GAT-5' D.3'-GAU-5' E. 3'-AUC-5'

A: D

Q: In principle, could any other amino acid (other than leucine) form a similar type of protein zipper?


A: there are other motifs that proteins incorporate. helix loop helix motifs, beta barrels, etc... there are combinations of motifs too. i hve not read anything about AA other than leucine forming zippers but like the first answer stated, maybe similar AA could also form zippers

Q: Compare and contrast the chemical structure of the amino acids leucine, serine, and cysteine.?
Explain how the functional groups of these amino acids contribute to differences in their properties.

A: Leucine -- an isobutyl group (CH2CHMe2) very non-polar. Bulky steric effects Serine -- hydroxymethyl group (CH2OH) very polar and hydrogen bonding Cysteine -- sulfhydrylmethyl group (CH2SH) polar and capable of forming disulfide bridges (-H2)

Q: How to draw the structural formula to amino acid peptide?
I'm confused by what my microbiology teacher wants me to do with the following problem: "Consider the following peptide: lysine-valine-threonine- cysteine-leucine-proline- gluamine-glutamic acid-aspartic acid-tryptophan, with lysine as the amino-terminal acid and tryptophan as the carboxy-terminal amino acid in the peptide. Draw out the complete structural formula of the peptide and determine the overall ionic charge on the peptide at pH 7.0. Charge at acid pHs? Charge at alkaline pHs?" Can someone help me figure out how to draw this structure and figure out the ionic charges?

A: http://web.indstate.edu/thcme/mwking/amino-acids.html From the above link, you can check the structures of all your amino acids. You will see that for all your amino acids, there is an amino terminal (this is your -NH2) and your carboxylic terminal (-COOH). In peptide bonds, the amino terminal of one amino acid (it becomes =NH3+) is bonded to the carboxylic end of your next amino acid (which becomes -COO-). When you say that lysine is your amino terminal acid, this means that the -NH2 of lysine is free and is not bonded to another amino acid. it is the carboxylic end of lysine that is bonded to the amino terminal of your next amino acid, valine. Then valine's carboxylic end is connected to the amino end of threonine...so on and so forth...That is why your tryptophan is your carboxy-terminal amino acid because its carboxylic acid side is not bonded.

Q: If the sequence of amino acids coded for by a strand of DNA is serine-alanine-lysine-leucine?
Table 8.2 Codon on mRNA and corresponding amino acid UUAleucineUAAnonsense GCAalanineAAUsparagine AAGlysineUGCcysteine GUUvalineUCG, UCUserine (Use Table 8.2.) If the sequence of amino acids coded for by a strand of DNA is serine-alanine-lysine-leucine, what is the order of bases in the sense strand of DNA? A. 3' UGUGCAAAGUUA B. 3' AGACGTTTCAAT C. 3' TCTCGTTTGTTA D. 5' TGTGCTTTCTTA E. 5' AGAGCTTTGAAT

A: 5' to 3' always E

Q: Difference between Amino Acids and Beta-Leucine?
What is the difference between the amino acids and beta-leucine? Any help is greatly appreciated.

A: http://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:15604

Q: which is the amino acid with the most hydrophobic side chain? Alanine or Leucine?


A: Leucine is more hydrophobic. The most hydrophobic amino acid is isoleucine.

Q: Leucine residues are found in highest fraction among all amino acid of any protein. Why so?


A: My understanding is that it has an antimicrobial effect

Q: sequences of all the possible tripeptides that contain the amino acids serine, leucine, phenylalanine?
use three letter abbreviations(ie Serine-ser) to express your answer

A: If you are asking the ways that S, L, P can be combined, assuming you can repeat them, you would have 3*3*3 or 27 combos: SSS SSP SSL SPS SPP SLS SLL SPL SLP LLL LLS LLP LSL LSS LPL LPP LPS LSP PPP PPL PPS PLP PLL PSP PSS PSL PLS If you can't repeat them, you only have 3*2*1 or 6 combos: SPL SLP LPS LSP PSL PLS This is just basic permutation/combination.

Q: In the protein, Pro-Glu-Ile-Leu, which amino acid contains the N-terminal group?
In the protein, Pro-Glu-Ile-Leu, which amino acid contains the N-terminal group? a. isoleucine b. glutamic acid c. leucine d. proline 2

A: d. proline

Q: Amino acid sequence 10pts to best answer?
If a protein contained the sequence: glutamic acid-aspartic acid-leucine-glutamic acid-aspartic acid; it could likely make ionic bonds with which of the sequences listed? A. lysine-arginine-histidine-glycine-lysine B. gultamic acid-glycine-aspartic acid-leucine-glutamic acid-aspartic acid C. proline-leucine-valine-proline alanine methionin D. cysteine-methionine-cysteine-valine-glutamic acid E. None of the above

A: A. lysine-arginine-histidine-glycine-lysine - due to the basic amino acids in this sequence (lysine and arginine).

Q: Amino acids and names of mythological gods ?
Create as many name of gods from any myth you know using 1-letter amino acids symbol : http://en.wikipedia.org/wiki/Amino_acid For example : ENLIL : Glutamic Acid - Aspargine - Leucine - Isoleucine - Leucine HERA : Histidin - Glutamic Acid - Arginine - Alanine ZEUS : Glx - Glutamic Acid - Valine - Serine Just did it for fun.

A: YAHWEH : Tyrosine - Alanine - Histidine - Tryptophan - Glutamic acid - Histidine FSM : Phenylalanine - Serine - Methionine