10. (5 pts) Draw the tripeptide from the foilowing three amino acids, in this order, under physiological conditions and give the sequence. 10. H₂N N (5 pts) Draw the tripeptide from the following three amino acids, in this order, under physiological conditions and give the sequence. CH3 OH назван HS H₂N. OH NH₂

10. (5 pts) Draw the tripeptide from the foilowing three amino acids, in this order, under physiological conditions and give the sequence. 10. H₂N N (5 pts) Draw the tripeptide from the following three amino acids, in this order, under physiological conditions and give the sequence. CH3 OH назван HS H₂N. OH NH₂

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter9: From Dna To Protein

Section: Chapter Questions

Problem 5SQ: The main function of a DNA molecule is to ________ . a. store heritable information b. carry a...

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You have isolated this peptide. AÇQGRKSPWTT TAHEVYPGGČMN What products would you get if you treated with: a) DTT ( dithiothreitol) b) Trypsin c) Carboxypeptidase A ( 1 cycle) d) Aminopeptidase M ( 2 cycles) e) DTT, then Iodoacetate, then elastase
. The following diagram shows the biosynthesis of B12 coenzymes, starting with the vitamin. DMB is dimethylbenzimidazole. (a) What one additional substrate or cofactor is required by enzyme B? (b) Genetic deficiency in animals of enzyme C would result in exces- sive urinary excretion of what compound?
III. Protein: QQICIMFELTQISS Predict the products of the following reactions with the protein given, if there is none, write NO RXN. Also indicate, if the reaction is fast or slow. 9.) КОНРЫ(СH-CО)» 10.) Glyoxilic Acid/Conc. H2SO4
4)
Explain how tandem mass spectroscopy is used to determinethe sequence of a peptide. Once a peptide sequence is known,how is this information used to determine the sequence of theentire protein?
29. Amino Acid Chemistry: Using the amino acid chart provided..Ala-Lys-Cys & give the isoelectric point for the tripeptide. Table 23.2 The pK, Values of Amino Acids pk, a-COOH a-NH3* Amino acid side chain Alanine 2.34 9.69 2.17 9.04 12.48 Arginine Asparagine 2.02 8.84 3.86 Aspartic acid Cysteine 2.09 9.82 1.92 10.46 8.35 Glutamic acid 2.19 9.67 4.25 Glutamine 2.17 9.13 Glycine 2.34 9.60 1.82 9.17 6.04 Histidine 2.36 9.68 Isoleucine Leucine 2.36 9.60 2.18 $ 95 10.79 Lysine 2.28 9.21 Methionine 16 9.18 Phenylalanine 1.99 10.60 Proline 2.21 9.15 Serine 2.63 9.10 Threonine 2.38 9.39 Tryptophan Tyrosine 9.11 10.07 2.20 2.32 9.62 Valine O something else! 5.14 O 8.65 something else! 5.81 9.02 9.57
4. a. Give the full names of the amino acids in this peptide. НзN — CH—С-N—CH— С-N—CH—С—О ČH3 H ČH,OH H. CH2 -ОН b. Calculate the isoelectric point (pl) of a peptide with sequence SNARE. Show your work in a table, giving the pKa values of the ionizable groups, pH, and charges. Step marks are counted. Don't need to write “protonated" or “deprotonated".
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27. Draw palmitic acid, identify a, B and w carbons, write out its short hand notation 28. Examine the peptide sequence below and then answer the questions: H2N-Gly- Leu- Ala-Asp-Cys-Asn-Trp-lle-Ser-Phe-Lys-Cys-Arg-Pro-coOH a. Circle the asparagine residue b. A possible intramolecular disulfide bond can be formed within this peptide between which two residues? c. Circle one residue which has a positively charged side chain under pH 7.4 d. Circle one residue which has a negatively charged side chain under pH 7.4 e. Circle the residue which can be phosphorylated
S1.What functional group (pictured below) is used in the formation of ATP, the backbone of DNA, and the plasma membrane? R. - HO- asluolom OgH 910m ansa obyd to inuoms adisi69 101 P- Hnedenoi HO 9tom anisinos H 19w 1639 eniv blut viend ou nontel:oceansied bol-ngtsl s19 1591 a. Amino b. Carbonyl c. Ester d. Phosphate e. Alcohol Sabios onime Tertio of bensemoo Insietib ti aolem tsrll blas onims ns to neg at to quang ly snodibod for ogh quotg
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