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CHE 1211 L-General, Organic and Biological Chemistry Lab PROTEINS AND AMINO ACIDS Name: Date: Lab Instructor:...
1.) Draw the structure of the amino acid Serine(ser), which has R=-CH2-OH. Label the alpha carbon. 2.) Draw the dipeptid...
1.) Draw the structure of the amino acid Serine(ser), which has R=-CH2-OH. Label the alpha carbon. 2.) Draw the dipeptide that forms between serine and alanine. The dipeptide sequence is Ser-Ala. Label the peptide bond. 3.) How many amino acids residues are in a polypeptide containing 6 peptide bonds? How many peptide bonds are in a tripeptide 4.) Sketch a alpha-helix and a beta-sheet as best as you can. Label each.
PRELAB ASSIGNMENT 1 Draw the structure of the amino acid son CH-OH Label the alpha carbon...
PRELAB ASSIGNMENT 1 Draw the structure of the amino acid son CH-OH Label the alpha carbon acid Sorine (en) which has R MO CHE OH CH2 OH 2. Draw the dipeptide that forms betw the peptide bond. s between serine and alanine The dipeptide sequence is Ser Ala Lace CH NCH H, A - — сH — с CH2 OH 3. How many amino aci arty amino acid residues are in a polypeptide containing 6 peptide bonos How many peptide...
19) The form of dipeptide aspatylserine (Asp-Ser) obtained from two amino acids, aspartic acid an...
19) The form of dipeptide aspatylserine (Asp-Ser) obtained from two amino acids, aspartic acid and serine, whose structures are shown here, is HiN-CH-C-0HIN-CH-C-0 CH2 CH OH aspartic acid serine A HN-CH-C-o-N-CH-C-o CH OH CH2 coo -(H-C-o-H-c-o CH OH CH2 HIN CH-C-N-CH-C-O CH OH CH H-CH-CH CH CH OH coo- 20) Where is the peptide bond located in this dipeptide? serine valine a) the CO-NH joining serine and the valine b) the doubly bonded oxygen just left of center between the...
Proteins are made from chains of amino acids. The amino acids are joined together by structures...
Proteins are made from chains of amino acids. The amino acids
are joined together by structures called peptide
bonds.
Draw the dipeptide that results when a peptide bond is formed
between the two glycine molecules shown here. (Figure 1) Draw it as
it would occur at the pHpH of most body fluids.
Draw the molecule on the canvas by choosing buttons from the
Tools (for bonds), Atoms, and Advanced Template toolbars. The
single bond is active by default. Include all...
s smı peptdes and ultimately proteins through a condensation fatt similar to the reactions that form...
s smı peptdes and ultimately proteins through a condensation fatt similar to the reactions that form a triglyceride from glycerol Amino acids combine to form peptides an protonated aater molecule is removed when a carboxylate and and three fatty acids. One and thretis amine react. Figure 1: o- HI Carboxylate reacts with Protonated Amide forming amine 2. Consider the two amino acids, tryptophan and serine bonds can be formed between these acids? How many different peptide 3. Draw each of...
Protein Structure A protein contains a string of amino acids (usually more than 50) that has...
Protein Structure A protein contains a string of amino acids (usually more than 50) that has a biological function. 15ecause proteins are so large, their structure has several levels, all of which are important for the proper functioning of the protein. Ultimately, the sequence of amino acids (ordering of polar and nonpolar amino acids) dictates the 3-dimensional shape of a protein and this dictates its primary function. Level 1: Primary (1") The amino acid sequence of a polypeptide Protein Backbone...
From N to C terminus, name the amino acids in the polypeptide shown below using single-letter...
From N to C terminus, name the amino acids in the polypeptide shown below using single-letter codes. (Do not use punctuation marks or spaces to separate the letter (ie. if the 3 amino acids are A, B and C, write the sequence as ABC) 0 - 0- CH3 6- H₃C CH₂ Han CH2 CH2 CH-CH3 CH2 CH3 CH2 CH2 NH3 Which of the following is NOT a naturally occurring amino acid? OA) H3NCH-Coo OB) H3NCH-Coo CH2 он Oc) HNCH-Coo CH-OH...
Question 5 Bio206 Homework 6 Amino Acids and Proteins Organic Chemistry II Due May 6, 2017 1. Which amino acid is least likely to be found in a natural protein? CH20H NHz CHs IV 2. A pentapeptide has...
Question 5
Bio206 Homework 6 Amino Acids and Proteins Organic Chemistry II Due May 6, 2017 1. Which amino acid is least likely to be found in a natural protein? CH20H NHz CHs IV 2. A pentapeptide has the molecular formula: Asp, Glu, His, Phe, Val. Partial hydrolysis of the pentapeptide gives: Val Asp, Glu His, Phe Val, and Asp Glu. What is the amino acid sequence of the pentapeptide? 3. When the pentapeptide below is heated first with 2,4-dinitrofluorobenzene...
questions e-f and g.and k. a) Use the 3 letter symbols for a 6 amino acid...
questions e-f and g.and k.
a) Use the 3 letter symbols for a 6 amino acid peptide chain containing at least one polar and at least one acidic or basic amino acid. (All at physiological pH.) Asp - Gly-Glu-Tyr- Phe- Ala OM b) Draw the primary structure with its peptide bonds, side chains, etc. in the correct order. CH3 NH - E-N -CH. - CH - C- 2-I U=0 -ch- & N-chi- CH₃ CH ₂ Coo CH н My Coo...
PRELAB ASSIGNMENT 1 Draw the structure of the amino acid son CH-OH Label the alpha carbon acid Sorine (en) which has R MO CHE OH CH2 OH 2. Draw the dipeptide that forms betw the peptide bond. s between serine and alanine The dipeptide sequence is Ser Ala Lace CH NCH H, A - — сH — с CH2 OH 3. How many amino aci arty amino acid residues are in a polypeptide containing 6 peptide bonos How many peptide...
19) The form of dipeptide aspatylserine (Asp-Ser) obtained from two amino acids, aspartic acid and serine, whose structures are shown here, is HiN-CH-C-0HIN-CH-C-0 CH2 CH OH aspartic acid serine A HN-CH-C-o-N-CH-C-o CH OH CH2 coo -(H-C-o-H-c-o CH OH CH2 HIN CH-C-N-CH-C-O CH OH CH H-CH-CH CH CH OH coo- 20) Where is the peptide bond located in this dipeptide? serine valine a) the CO-NH joining serine and the valine b) the doubly bonded oxygen just left of center between the...
Proteins are made from chains of amino acids. The amino acids
are joined together by structures called peptide
bonds.
Draw the dipeptide that results when a peptide bond is formed
between the two glycine molecules shown here. (Figure 1) Draw it as
it would occur at the pHpH of most body fluids.
Draw the molecule on the canvas by choosing buttons from the
Tools (for bonds), Atoms, and Advanced Template toolbars. The
single bond is active by default. Include all...
s smı peptdes and ultimately proteins through a condensation fatt similar to the reactions that form a triglyceride from glycerol Amino acids combine to form peptides an protonated aater molecule is removed when a carboxylate and and three fatty acids. One and thretis amine react. Figure 1: o- HI Carboxylate reacts with Protonated Amide forming amine 2. Consider the two amino acids, tryptophan and serine bonds can be formed between these acids? How many different peptide 3. Draw each of...
Protein Structure A protein contains a string of amino acids (usually more than 50) that has a biological function. 15ecause proteins are so large, their structure has several levels, all of which are important for the proper functioning of the protein. Ultimately, the sequence of amino acids (ordering of polar and nonpolar amino acids) dictates the 3-dimensional shape of a protein and this dictates its primary function. Level 1: Primary (1") The amino acid sequence of a polypeptide Protein Backbone...
From N to C terminus, name the amino acids in the polypeptide shown below using single-letter codes. (Do not use punctuation marks or spaces to separate the letter (ie. if the 3 amino acids are A, B and C, write the sequence as ABC) 0 - 0- CH3 6- H₃C CH₂ Han CH2 CH2 CH-CH3 CH2 CH3 CH2 CH2 NH3 Which of the following is NOT a naturally occurring amino acid? OA) H3NCH-Coo OB) H3NCH-Coo CH2 он Oc) HNCH-Coo CH-OH...
Question 5
Bio206 Homework 6 Amino Acids and Proteins Organic Chemistry II Due May 6, 2017 1. Which amino acid is least likely to be found in a natural protein? CH20H NHz CHs IV 2. A pentapeptide has the molecular formula: Asp, Glu, His, Phe, Val. Partial hydrolysis of the pentapeptide gives: Val Asp, Glu His, Phe Val, and Asp Glu. What is the amino acid sequence of the pentapeptide? 3. When the pentapeptide below is heated first with 2,4-dinitrofluorobenzene...
questions e-f and g.and k.
a) Use the 3 letter symbols for a 6 amino acid peptide chain containing at least one polar and at least one acidic or basic amino acid. (All at physiological pH.) Asp - Gly-Glu-Tyr- Phe- Ala OM b) Draw the primary structure with its peptide bonds, side chains, etc. in the correct order. CH3 NH - E-N -CH. - CH - C- 2-I U=0 -ch- & N-chi- CH₃ CH ₂ Coo CH н My Coo...
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