Consider the structure shown below.он35CH; OCH, OHCH; O1 H-N-CH,-C-N-CH;-C-N-CH-C-N-CH-C-N-CH-C-ơ 2H.HHFill in the blank with an integer (1, 2, 3, 4, 5..) as shown in the diagram or to represent a specified number.A hydrophilic side chain is indicated by the number

The amino acids serine (Ser), threonine (Thr), cysteine (Cys), asparagine (Asn), glutamine (Gln),…

Answered: Consider the structure shown below. он…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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In the space provided, draw a Haworth projection for the beta anomer of the following monosaccharide Fischer projection. CHO HO-C-H HO-C-H HO-C-H H-C-OH CH,OH
Draw the structure and give the systematic name of the given disaccharides. [No need to show the stepwise process] (a) Lactose which is also known as milk sugar: B-D-Gal(1>4)B-D-Glc, where Gal is galactose and Glc is glucose.
Consider the structure of the tripeptide (in its fully protonated form) below. H H H + I || H₂N-C-C-N-C-C-N-C-C-OH 1 I | H CH₂ H CH₂ CH₂ T C=O OH AA1 0=0 || HC-CH3 CH3 AA2 AA3 0=C 1. Give the sequence of the tripeptide using the ONE-LETTER DESIGNATION (UPPERCASE LETTER) with NO spaces and symbols between each letter. 2. How many ionizable groups are there in the tripeptide? Give the numerical value (e.g., 10 not ten). • pH 10: {Choices: -2, -1, 0, +1, +2} 3. Which amino acid residue has one ionizable group left upon forming the tripeptide? {Choices: AA1, AA2, AA3, none, all} 4. Give the net charge of the dominant structure of the tripeptide at the given pH values. The pK, values of the amino acids are given in Table 1. • pH 4: {Choices: -2, -1, 0, +1, +2}
Write the name of the oligopeptide L-E-T-S-P-R-A-Y using their full amino acid names. Draw the structure of olgopeptide L-E-T-S-P-R-A-Y.
Draw a ceramide with a (16:1n-7) fatty acid attached
E. Histidine is an amino acid with three titratable groups: an -NH," group (pK, = 9.2), a -COOH group (pK, = 1.8), and an imidazole (amine- like) group (pK, = 6.0). The titration curve for histidine is shown below with four points highlighted. (a) Identify which point on the titration curve corresponds to the pK, for each of the titratable groups, and which point corresponds to the pl. Explain your choices. (b) Calculate the value of pl for histidine. 14 12 10 6. 4 2- 2 3 Moles "OH added per mole histidine на
Raffinose (see prev. question for structure) is not digestible by humans yet is found in foods we eat all the time like beans, cabbage, brussels sprouts etc. What 2 human digestible compounds can Raffinose be broken down into? Just as a side note, Raff is NOT digestible by us, but our helpful gut bacteria break it down for us into the 2 compounds that are the answer to this question. O a-D-glucose O B-D-fructose sucrose a-D-galactose Lactose maltose
Draw the two possible Haworth structures (both alpha and beta anomers) for the following monosaccharides and give their corresponding systematic names. [Show the stepwise process] D-Ribose D-Galactose D- Fructose
Write the name for the trisaccharide depicted below (for example, of the form a - D - xylofuranose). Be sure to include if the sugars are in the pyranose or furanose conformations in the name and include the linkages between sugars (for example, (2 - - > 4)). CH₂OH ОН OH н ОН -CH₂ H\H ОН н н ОН CH2OH н ОН но н н ОН
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Complete the following table by providing the Fischer and Haworth Projections of the given sugars. In the Fischer Projection put an asterisk (*) mark in the chiral centers of the molecule. Sugar Fischer Projection Haworth Projection (Complete) alpha-anomer Haworth Projection (Abbreviated) beta-anomer D-Mannose D-Xylose L-Lyxose
Based on the following titration table of Glycine, would you be able to recreate the same for Histidine? Glicina Increasing pH H-N-CH,-COOH -H-N-CH,-co = H-N-CH,-C00- Net charge: +1 pH COOH-pKa = 2.3 NH3-pka = 9.6 CN AEq +1 +1 2.3 (0.5°-1)+(0.5°0)=-0.5 +0.5 0.5 9.6 -1 (0.5*+1)+(0.5°0)=+0.5 -0.5 1.5 14 Given that the pKas for Histidine are the following: pka1 = 1.82 pKa2 = 9.17 pКаз %3 6.00 pL = 7.59 2.

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Consider the structure shown below. он CH, O 3 5 CH; O CH; O 1 H-N-CH-C-N-CH;-C-N-CH-C-N-CH-C-N-CH-C-o 2 H 6 Fill in the blank with an integer (1, 2, 3, 4, 5.) as shown in the diagram or to represent a specified number.