What is the charge of each amino acid residue in the peptide chain and what is the net charge on the whole protein at pH = 4 (Use the provided table)? KGL

Q: Write the structural formula (flat projection) of the dipeptide glycyl-phenylalanine (Glycine is the…

A: When the OH group of one amino acid and H of amine group of another amino acid condensed to give a…

Q: 2. Classify the following amino acids as nonpolar, polar basic, polar acidic, or polar neutral. (a)…

A: Polar neutral amino acids: These amino acids have polar side chains, but they are not charged.…

Q: Draw the line bond structure for the general form of an amino acid using “R” to represent the side…

A:

Q: Explain which amino acids are acidic, which are basic, and which are neutral. Use theisoelectric…

A: Amino acids: At isoelectric point, proteins are neutral.

Q: All amino acids have two ionizable functional groups: an α‑amino group (average p?a of 9.4) and an…

A: The ionization of Aspartic acid according to the question is shown in the figure:

Q: Write the structure for the protein Pro-Asn-Tyr-Cys at pH 7.0.

A: Amino acid: An amino acid is an organic molecule and it consists of amine group (NH2), acidic…

Q: What is the pI of the amino acid show below?

A: PI is the isoelectric point where there is no net formal charge. Given : pKa1 = 2.18 pKa2 = 8.95…

Q: The first step in the procedure asks you to prepare five dilutions of the protein standard (BSA) in…

A: During the dilution process, solvent is added to the solution and hence changing the concentration…

Q: Consider the ring structure of b-d-glucose. It will give a positive test reducing sugars. Describe…

A: The ring structure of glucose is not stable. there is a continuous exchange between open-chain and…

Q: The amino acid histidine has ionizable groups with pKa values of 1.8, 6.0, and 9.2, COOH H₂N-CH CH…

A: GIVEN The pKa1, pKa2 and pKa3 values of Histidine are given as 1.8, 6.0 and 9.2. Initial pH of…

Q: Draw the predominant form of this amino acid at pH = 12.

A: Calculate the isoelectric point (pl) for the given amino acid  At pI the amino acid exist as…

Q: Give the name of the amino acid shown below, including D or L. Give also its three-letter code. ОН…

A: Amino acids are compound in which both amino and carboxylic acid groups are present.

Q: Identify the following amino acid in aqueous form (at pH = 7.0): (COO)–CH(NH3)–CH(OH)–CH3 A.…

A: Acidic and basic  amino acid did not  have equal number of acid and amine groups . For neutral amino…

Q: Consider an amino acid with the following pKa values: pKa1 = 2.71 and pK, = 9.31 At what pH value in…

A: Amino acids are amphoteric in nature due to the presence their ionizable α-amino and α-carboxylic…

Q: given a solution of alanine at pH 9.00, draw the structure of the species present in appreciable…

A: The given amino acid is alanine. pH of the given alanine solution = 9.00The Henderson-Hasselbalch…

Q: An amino acid contains by mass: 34.28% C, 6.71% H, 13.32% N, and 45.67% O. What is its empirical…

A: Empirical Formula of amino acid is = C3H7NO3Explanation:Step 1:-We know that,Empirical Formula:-It…

Q: The primary difference between each amino acid is the side chain (functional group) of the alpha…

A:

Q: H3N Classify the amino acid depicted here in the form at physiological pH (~7.4). H₂C ΤΟ CH₂…

A: We have to classify the amino acid depicted here in the form at physiological PH(-7.4) The structure…

Q: Question 6 of 25 > Modify lysine to show the predominant form at pH 7. Modify the amino acid by…

A: Amino acids are bullding blocks of proteins. pH measures how acidic or basic a solution is.

Q: Consider this amino acid shown here at pH 7.0 (the isoelectric point for this amino acid is 9.7).…

A:

Q: Classify the amino acid depicted here in the form at physiological pH (~7.4). H3N+ H₂C HC CH₂ 010 C.…

A: Amino acids are the building blocks of protein. They contain carboxylic acid group as well as amino…

Q: Provide the correct three-letter abbreviation for the following amino acid: O || H3N-CH-C-O I CH₂ I…

A: There are two questions given above from the topic of biomolecules of organic chemistry . They ask…

Q: Identify the amino group present in the given amino acid. COO™ H₂N-CH | CH₂OH Serine

A: Zwitter ion form of amino acid Is given.Zwitter ion is one which have both ions (+ ,-)positive as…

Q: If the pl for asparagine is 5.43, draw the structure at a pH of 9.5?

A: The pl for asparagine = 5.43 pH = 9.5

Q: 13.2) Draw the line bond structure for the general form of an amino acid using "R" to represent the…

A: Here we have to draw line structure of predominant form of amino acid at physiolgical pH = 7.4

Q: Calculate the molecular weight of a small protein if 5.90 g sample of this protein is dissolved in…

A: P = CRTWhere, P = osmotic pressure in atm; R = 0.0821 L atm mol-1 K-1, T = temperature in K

Q: H2N CH C OH CH2 CH2 CH2 NH CENH NH2

A: Amino acids are organic compounds containing amine and carboxyl functional groups and each amino…

Q: a. Neutral/ non-polar/ acidic/ basic H2N ÇH COH CH OH CH3

A: Amino acids are classified mainly as polar, non-polar, acidic, basic. An amino acid is said to be…

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.