The side-chain carboxyl groups of aspartic acid and glutamic acid are often protected as benzyl esters. Me,COČNHCHČOCH3 ВОС as amino- protecting group CH, CH, benzyl ester as carboxyl- protecting group C=0 ÓCH,Ph

Q: You are given the structures of the amino acids alanine (Ala), methionine (Met) threonine (Thr). H2N…

A: Amino acids are the building blocks of peptides, repeating units combine together to make a chain…

Q: Draw the tetrapeptide Ala-Thr-Asp-Asn and indicate the peptide bonds.

A:

Q: The amino acid alanine is a solid at room temperature and has a melting point of 315 °C, while…

A: Reason to explain the existence of solid form of alanine but liquid form of pyruvic acid at room…

Q: Where is the peptide linkage in the dipeptide above? A. A B. B C. C D. D E. E

A: We have combination of two amino acids to have peptide bond ,we have to identify the peptide bond.

Q: How many atoms of each element are in a molecule of the amino acid lysine

A: Structure of lysine   Chemical formula of lysine C6H14N2O2

Q: how many dipeptides can be formed between isoleucine and glutamine? A) 1  B) 2 C) 3 D) 4 E) 5

A: Dipeptide is a chemical bonds between two amino acids link by acid and amine forms amide bond

Q: Name the tripeptide using the three letter amino acid abbreviations separated by a hyphen. (For…

A: Amino acids in which carbon is linked with carboxylic group, amino group and alkyl group. Amino…

Q: (a) What amino acids would be obtained by hydrolysis of the following tripeptide? H,NCHCNHCHCNHCHCOH…

A: (a) In the hydrolysis reaction, the water molecule is added to the reactant in order to recover the…

Q: The structure of the amino acid alanine (CH3CHNH2COOHCH3CHNH2COOH) contains a hydrogen atom, a…

A:

Q: Identify and encircle the peptide bonds in these polypeptides.

A: Amino acid are species which have both carboxylic acid group and basic group amine group

Q: What sort of side chain does the amino acid below have: COO H3N-C-H CH2OH Onon-polar charged polar…

A:

Q: Give the amino acid sequence of an octapeptide that contains the amino acids Tyr, Ala, Leu (2…

A: Peptide linkage is formed between the amino group of amino acid and the carboxyl group of other…

Q: Using the mnemonic device, draw the structure of a heptapeptide with the following amino acids:…

A: We have find out the structure of a heptapeptide.

Q: Denaturation of a protein by acidic or basic solutions often leads to breaking of bonds in the…

A: In denaturation  process  in which proteins , nucleic acid lost their quaternary , tertiary ,…

Q: 1. Consider only 2 amino acids H H 1 COOH -4---- NH₂ с 1 C_COOH R' R Write the structural formula…

A: Note: Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: which amino acids is achiral : a  alanine b  valine c  proline d  glycine

A: The structures for alanine, valine, proline, and glycine are drawn below where the asterisk (*)…

Q: The structure shown here is best described as a(n) CH3 H H H₂N N -OH H3C H HH OH CH3 O zwitterion O…

A: Correct answer is - Option D, Tetrapeptide

Q: Draw the peptide structure of Trp-Thr-Gly-Ile-Thr-Arg, and circle the peptide bonds

A:

Q: In the following molecule, which bond(s) is (are) a peptide bond? Mark all that apply. DA ОВ BC O D…

A: The peptid bond is an amide type bond which is formed by the condensation of two amino acids through…

Q: NH2 O=C CH3 CH2 CH2 O=C CH2 H-C-CH3 CH2 *H3N-C-C-N-C-C-N-C-C-O I || | нонн онно Give the…

A:

Q: XeF2O, ClO4-, HNO2, CH3CH(NH2)COOH (amino acid alanine). Identify the molecules with the following…

A: The solution is given below -

Q: How many different primary structures are possible for a four-amino-acid segment of a protein if the…

A: GIVEN:   How many different primary structures are possible for a four-amino-acid segment of a…

Q: он HỌ но- OH Sugar A но- OH но Sugar B OH но- но. Sugar C OH O peptide portion O diterpene O…

A:

Q: 1. Classify the following amino acids as nonpolar, polar neutral, polar acidic, or polar basic. CH³…

A:

Q: Give the amino acid sequence of a hexapeptide that contains the amino acids Ala, Val, Ser, Ile, Gly,…

A: The peptide segments obtained by partial hydrolysis of given hexapeptide are: 1.  Gly–Ile–Val 2.…

Q: Draw the structure formed between alpha-L-erythose with amino acid asparagine and label the type of…

A: Alpha L erythose react with asparagine amino acid form imine ( Schiff base)

Q: 2. Draw the peptide product formed from the reaction of the following amino acids. H O но ||…

A: Since, you have asked multiple questions, we will solve the first question for you.  Question-2 :…

Q: what is the molar mass of the following amino acids in a peptide chain: His-lle-cys-lys?

A:

Q: An opioid pentapeptide has the following structure: Tyr-Cys-Gly-Phe-Cys Write its structure…

A: When the thiols are oxidized under mild conditions they form disulfide compound with S-S bond.

Q: HẠ LON H₂N-CH₂-C-OH Glycine OH O H_N-CH-CN-CHC CH₂ (1) HO-C-CH, CH₂ (3) CH-C-OH CH₂ O H₂N-CH-C-OH…

A:

Q: HOCH,CH(NH,)COOH (II) (i) Draw a dipeptide formed between I and III and label the peptide bond. (ii)…

A: Amide bond is formed when a compound with carboxylic group and a compound with amine reacts. At pH…

Q: 2. Draw the peptide product formed from the reaction of the following amino acids. но | || но | ||…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Proteins are polyamides formed from a-amino acids. Draw a partial structure of a protein by drawing…

A: The given amino acid is an  alpha amino acid-

Q: The sequence WYQN represents a. Tryptophan, Glutamine, Tryptophan, Asparagine b. Tryptophan,…

A: The sequence WYQN represents   b. Tryptophan, Tyrosine, Glutamine, Asparagine

Q: Show how to convert the side-chain carboxyl group to a benzyl ester using benzyl chloride as a…

A: The conversion of side chain carboxyl group to benzyl ester by benzyl chloride is given as,

Q: How many peptide bonds in the following peptide are depicted as trans? H H H3C H нн N. 'N' 'N' HO, H…

A: Note : Acid and amine reacts and forms peptide bond. Here three peptide bonds are present.

Q: How many dipeptides can be formed between isoleucine and glutamine? A) 1 B) 2 C) 3 D) 4 E) 5

A: There are 2 possible dipeptides that can be formed between isoleucine and glutamine. Option B (2) is…

Q: Which of the following is/are true about the peptide bond? It has a triple bond character There is…

A: Amino acids can be defined as the organic compounds containing carboxyl group and amine group.

Q: R2 NH 2 HOOC CH CH R1 Amino Peptide bonds Carboxy terminus terminus -

A: Polypeptide: A polypeptide is formed by the condensation or dehydration reactions of between three…

Q: Which of the following amino acids is naturally occurring? - CH,OH H- ČH,COO- ČH,CH,CO0-

A: 1) You answer is incorrect because last structure of alpha amino acid is not naturally occurring…

Q: What are the structures of the amino acids that result from the hydrolysis of all the peptide bonds…

A: Two or more amino acid are connected to each other and forms a chain. This bond is known as Peptide…

Q: Which amino acids have R groups with an additional chiral carbon? - Cysteine - Isoleucine -…

A:

Q: 1. Consider only 2 amino acids H NH2 - C ·}- COOH - WH₂ - C - COOH 1 R' R Write the structural…

A: Peptide bond :-  The amide linkage (-NH-CO-) formed when -NH2 group of one amino acid molecule…

Q: The structural formula tur alutamic acid is -CH-CH-CH- C HO NH. 23. The systanic name for glutamic…

A: 24. The IUPAC name of glutamic acid is : 2 amino penta 1,5 dioic acid correct option is (b)

Q: Formulate a dipeptide (draw its structure) from the amino acids serine (ser) and alanine (ala) and…

A: Note: amino acids are alpha amino acids. two amino acids react and form a peptide bond (amide bond).

Q: 3. Draw the structures of: a) The two dipeptides that can be formed by combination of alanine with…

A: Amide A is N- isopropylbutanamide.

Q: Which statement is completely false below? O Amino Acid Polymers less than 50 amino acid residues…

A: The compounds containing amino group (-NH2) and a carboxylic acid group (-COOH) are termed as amino…