1) Option a)
2) option b)
3) option a)
Which one is the major product of the following reaction sequence? NH 1. excess CHI 2....
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Which aldehyde or ketone AND amine reactants are needed to complete the following reaction? CEO NaBH,CN Amine dil. H30+ N(CH3)3 NH(CH3 N(CH3)3 Predict the product(s) for the following reaction series: ОН -Br 1) NaH 2) ОН + -ONa A decapeptide that is part of an insulin-like peptide has the molecular formula: Asn, Arg(2), Ser(3), Phe, Cys, Leu, Thr. After partial hydrolysis, the fragments are: Cys-Ser-Phe-Ser- Arg-Asn-Ser-Cys Thr-Leu-Arg Ser-Thr What is the sequence? Ser-Phe-Ser-Thr-Leu-Arg-Arg-Asn-Ser-Cys Ser-Thr-Arg-Asn-Ser-Cys-Ser-Phe-Ser- Asn Arg-Asn-Ser-Cys-Ser-Phe-Ser-Thr-Leu-Arg Thr-Leu-Arg-Asn-Ser-Cys-Ser-Phe-Ser-Phe
Question 22 (4 points) Which one is the major product of the following reaction sequence? 1. excess CH1 2. Ag,0, H20 heat NH2 Question 23 (4 points) Which aldehyde or ketone AND amine reactants are needed to complete the following reaction? HN NaBH;CN C=0 Amine dil. H:07 NHẠCH, NH(CH3)2 (CH3)2NCH.CH NHẠCH
A decapeptide that is part of an insulin-like peptide has the molecular formula: Asn, Arg(2), Ser(3), Phe, Cys, Leu, Thr. After partial hydrolysis, the fragments are: Cys-Ser-Phe-Ser- Arg-Asn-Ser-Cys Thr-Leu-Arg Ser-Thr What is the sequence? Ser-Phe-Ser-Thr-Leu-Arg-Arg-Asn-Ser-Cys Arg-Asn-Ser-Cys-Ser-Phe-Ser-Thr-Leu-Arg Ser-Thr-Arg-Asn-Ser-Cys-Ser-Phe-Ser- Asn Thr-Leu-Arg-Asn-Ser-Cys-Ser-Phe-Ser-Phe A compound shows an IR peak at 1740 cm". Its proton NMR spectrum consists of 1.07 ppm, t, 3H, 2.25 ppm, quintet, 2H, 2.36 ppm, m, 4H, 3.61 ppm, s, 3H and 4.01 ppm, 4, 2H. The most likely structure is
Styles A decapeptide has the following amina acid composition: Arg. Asp, Gly, Leu, Lys, Met, Phe, Ser. Trp, and Val Reacting the native peptide with FDNB and then hydrolyzing released 2.4- dinitrophenylvaline. Brief incubation of the native peptide with carboxypeptidase yielded free Leu. Incubation with cyanogen bromide yielded two fragments: a tetrapeptide with composition Met, Phe, Ser, and Val, and a hexapeptide. The hexapeptide yielded 2.4- dinitrophenylglycine. Proteolytic cleavage by trypsin of the native peptide gave free Leu, a tripeptide,...
Arrange the following compounds by how fast they undergo hydrolysis in H20, fastest first: hom CI OCH2CH3 NH2 11 III | > || > III III > | > || OT> ||| > || Oil > I > III A decapeptide that is part of an insulin-like peptide has the molecular formula: Asn, Arg(2), Ser(3), Phe, Cys, Leu, Thr. After partial hydrolysis, the fragments are: Cys-Ser-Phe-Ser- Arg-Asn-Ser-Cys Thr-Leu-Arg Ser-Thr What is the sequence? Ser-Phe-Ser-Thr-Leu-Arg-Arg-Asn-Ser-Cys Arg-Asn-Ser-Cys-Ser-Phe-Ser-Thr-Leu-Arg Ser-Thr-Arg-Asn-Ser-Cys-Ser-Phe-Ser. Asn Thr-Leu-Arg-Asn-Ser-Cys-Ser-Phe-Ser-Phe A compound...
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Clearly provide the 3-letter symbol for the correct sequence of cach amino acid in each of listings of the amino acids in the peptide or in any fragments are simply listed in alphabetical order. A subscriptive the number of that amino acid. Use parentheses to incorporate the unknown amino acids after each treatment 1. A five amino acid peptide contains: Arg. Glu, His, Phe, and Ser This peptide yields the following results when broken down into...
1. Partial hydrolysis of lysozyme yielded an octapeptide that was later identified as the N-terminal segment of the protein. From the following information, determine the sequence of this octapeptide. a. The following amino acids were identified after complete hydrolysis of the octapeptide: Arginine (Arg) Glycine (Gly) Phenylalanine (Phe) Cysteine (Cys) Leucine (Leu) Valine (Val) Glutamic Acid (Glu) Lysine (Lys) b. Treatment of the octapeptide with dinitroflurobenzene (Sanger reagent) followed by complete hydrolysis gave lysine (Lys) labeled with two dinitrophenyl (DNP) groups. c. Treatment of the octapeptide with trypsin gave lysine...
3. (2 Points) Give the one-letter equivalents for all amino acids in the following sequence and circle the residues most likely to bind to a hard transition-metal ion: Ile-Pro-Arg-Glu-Phe-Glu-Arg-Cys-Ala-Asp-Ile-Ser-Leu-Ile-Lys-Glu-His-Gly
14 points) Which aldehyde or ketone AND amine reactants are needed to complete the following reaction? NaBH,CN C=0 Amine dil. H20 + NHẠCH NH(CH3 + NHẠCH NH(CH3)2
Which one is the major product of the following reaction sequence? -NH 1. excess CHI 2. Ag,0. 1,0 heat O