8. Disaccharide Nomenclature and Conjugation a) Draw a reducing disaccharide other than lactose, maltose, or sucrosees b) Identify the disaccharide with its full name c) Take the disaccharide and attach it to a peptide containing A-T-E-N and show it fully glycosylated (if possible). Draw all structures (including amino acids and the disaccharide):
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Please help with this biochem questions! Especially need help with part c!
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- 6 (a) A decapeptide has the following amino acid composition: Ala2 , Arg, Cys, Glu, Gly, Leu, Lys, Phe, Val Partial hydrolysis yields the following tripeptides: Cys-Glu-Leu + Gly-Arg-Cys + Leu-Ala-Ala+ Lys-Val-Phe + Val-Phe-Gly. Reaction of the decapeptide with 2,4-dinitrofluorobenzene yields 2,4-dinitrophenylysine. From the experimental data, deduce the primary structure of the decapeptide. (b) Suggest a scheme you will follow to synthesize the dipeptide Ala-GlyPlease draw the titration curve Arginine (y-axis: pH, x-axis: moles of OH-). Label the graph with the pKas and pI of the amino acid. Also, draw the species of the Arginine along the titration.1. Construct the two enantiomeric forms/structure of the following monosaccharides and designate the handedness of each using D, L system 1. Ribulose
- An octapeptide composed of four repeating glycylalanyl units has ___. A. one free amino group on the glycyl residue and one free carboxyl group on a alanyl residue B. two free carboxyl groups, both on the glycyl residues C. two free amino groups, both on alanyl residue she D. one free amino group on the alanyl residue and one free carboxyl group on a glycyl residue1 Draw the following polypeptide: Met- Tyr-Val-Ser-Asn 2A Draw the hydrolysis of a dipeptide consisting of phenylaline and glutamic acid. 2B What are the fuctional group present in the side chains of the amino acids.( phenylalanine and glutamic acid) 2C are the sidechains in part 2B hydrophobic or polar 2D where would you expect to find them ( surface or interior of a protein) ? why ?Consider N-acetyl-d-glucosamine Q.) Draw a chair conformation for the a- and b-pyranose forms of this monosaccharide.
- 31: Different amino acids are distinguished by a) the composition of their side chains, or ‘R-groups’ b) the location of their fatty acid group c) the location of their amino group d) their ability to form covalent t bonds with ions.22. All of the following are examples of disaccharide, EXCEPT: * A. maltose B. sucrose C. raffinose D. lactose1. What is the identity of the monosaccharide components of the tetrasaccharide: A. B. C. D. 2. Give the Haworth structure of the tetrasaccharide
- 6.Provide the structures and functions of three biochemically important disaccharidesLactose is a disaccharide formed by the formation of a bond between glucose and glycosidic; lactose glycosidic; galactose hydrogen; sucrose hydrogen; fructoseAmino acids have the generic structure seen below, where R represents different carbon-based side chains. Describe how the structure of amino acids allows them to be linked into long peptide chains to form proteins.