I am trying to figure how to solve: "What is the total charge of an oligopeptide...
I am trying to figure how to solve:
"What is the total charge of an oligopeptide with the sequence of Phe-Lys-Glu-Asp-Lys-Ala at pH 9.13?"
The right answer appears to be:
"50% with zero charge and 50% with a -1 charge"
Can someone show me how to get to this answer?
Homework Answers
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I am trying to figure how to solve:
"What is the total charge of an oligopeptide...
The amino acid sequence of minke whale myoglobin has recently been determined. A partial sequence is...
The amino acid sequence of minke whale myoglobin has recently been determined. A partial sequence is given below. What is the net charge on this peptide at pH 4.0, 7.0, and 10.0? Phe-Lys-His-Leu-Lys-Thr-Glu-Ala-Glu-Met-Lys-Ala-Ser-Glu-Asp The answers are: +2.5 at pH 4, -1 at pH 7, and -2.3 at pH 10. How do you get these answers?
please explain how to solve this problem, the answer is provided 9. Peptides: (20 pts.). A...
please explain how to solve this problem, the answer
is provided
9. Peptides: (20 pts.). A polypeptide (X) gives 7 fragments when treated with chymotrypsin (A-G). The same peptide also gives 9 fragments when treated with trypsin (I- IX). After Chymotrypsin A) Thr-Thr-Tyr-Ala-Gly-Phe-Phe-Ile-Asp- Lys B) Ala-Cys-Pro-Leu-Tyr-Gin-lle-Arg C) Met-Ser-Thr-Tyr-Pro-Gly-Arg D) Cys-Leu-Val-Phe-Ile-Lys E) Leu-Ala-Trp-Gly-Val F) Ser-Phe-Ala-Pro-Lys G) Met-Asp-Lys Afier Trypsin I) Ala-Pro-Lys-Met-Asp-Lys-Thr-Thr-Tyr II) Pro-Gly-Arg-Cys-Leu-Val-Phe III) Ile-Lys-Ala-Cys-Pro-Leu-Tyr IV) Ile-Asp-Lys-Met-Ser-Thr-Tyr V) Gin-Ile-Arg-Leu-Ala-Trp VIAla-Gly-Phe VII) Gly-Val VIII) Ser-Phe LX) Phe A) What is the primary...
Can someone explain how these work? 4. For a solution of Cys (C), at what pH...
Can someone explain how these work?
4. For a solution of Cys (C), at what pH would the net charge be closest to 1? a) 10.7 b) 8.4 c) (1.9-8.4)/2 = 5.5 d) (10.7 + 8.4)/2 = 9.55 5. For a solution of Tyr (Y), what percentage of the side chain R group's OH would be deprotonated at pH = 10.5? a) 0% b) 25% c) 50% d) 100% 6. For the peptide His -Asp-Gln-Glu-Ala- Lys (HDQEAK), what would be...
How do you calculate the net charge of a molecule? For example what would the net...
How do you calculate the net charge of a molecule? For example what would the net charge of this molecule in the stomach at a ph of 1.8 be? The answer is +1 but why? I understand that the asp molecule is negatively charged so why is the answer +1? I am referencing to Lys his arg being positively charged Asp and gluare negatively charges and Cys and tyr neutral
C,D, and E i need help with. 17. The following peptide forms part of Human Hemoglobin...
C,D, and E i need help with.
17. The following peptide forms part of Human Hemoglobin subunit gammaa Asp-Leu-Lys-Gly-Thr-Phe-Ala A) Which amino acids are likely to be on the side of peptid acids are likely to be on the side of peptide that faces the interior of the protein? Insert your answer leu, Gto.Pne, Ala B) Which are likely to be facing the aqueous environment? Insert your answer Asp, lys, Thr Draw the structure of the sequence at pH7.4. Using...
I am trying to solve this, but getting lost with the units. Could someone help me...
I am trying to solve this, but getting lost with the units.
Could someone help me with the solution so I can check my answer?
Thanks!
14.) Methane, CH4, diffuses in a given apparatus at the rate of 30 mLimin . At what rate would a gas with a molar mass of 100 diffuse under the same conditions?
Hi, I am trying to solve a problem where I have to find the fourier series...
Hi, I am trying to solve a problem where I have to find the
fourier series for a square wave with an amplitude of one, w = 2pi.
How can I show that the An coeffcients of the fourier serie will be
zero for a square wave? The square wave is first wave in the
picture.
I am am trying to figure out how to get from the starting benzene ring using...
I am am trying to figure out
how to get from the starting benzene ring using friedel-crafts
acylation and getting a double bond on the end, or a halide on the
end. The halide can easily be turned into the double bond.
We were unable to transcribe this imageCHM all
can someone show me step by step on how to solve this. I get confused on...
can someone show me step by
step on how to solve this. I get confused on why i had to use the
pythagoreum theorum for charge b and c
Find the electric field at the location of qa in the figure below to the right.) given that q q qd +2.70 n q 1 00 n and the sua e s L 5cm on asid he a s directed magntude 1047 391050 c 1050 N/C 135counterclockwise from the +x-axis la...
please show all your work i am really trying to understand how to solve these Solve...
please show all your work i am really trying to understand how to
solve these
Solve the equation log 4(x +61)+ log 4(x - 2) = 3 Show all of your work on paper and submit it on canvas. your won't get any credit for the last answer without submission on Canvas Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The solution(s) is/are x = (Simplify your answer. Use...
please explain how to solve this problem, the answer
is provided
9. Peptides: (20 pts.). A polypeptide (X) gives 7 fragments when treated with chymotrypsin (A-G). The same peptide also gives 9 fragments when treated with trypsin (I- IX). After Chymotrypsin A) Thr-Thr-Tyr-Ala-Gly-Phe-Phe-Ile-Asp- Lys B) Ala-Cys-Pro-Leu-Tyr-Gin-lle-Arg C) Met-Ser-Thr-Tyr-Pro-Gly-Arg D) Cys-Leu-Val-Phe-Ile-Lys E) Leu-Ala-Trp-Gly-Val F) Ser-Phe-Ala-Pro-Lys G) Met-Asp-Lys Afier Trypsin I) Ala-Pro-Lys-Met-Asp-Lys-Thr-Thr-Tyr II) Pro-Gly-Arg-Cys-Leu-Val-Phe III) Ile-Lys-Ala-Cys-Pro-Leu-Tyr IV) Ile-Asp-Lys-Met-Ser-Thr-Tyr V) Gin-Ile-Arg-Leu-Ala-Trp VIAla-Gly-Phe VII) Gly-Val VIII) Ser-Phe LX) Phe A) What is the primary...
Can someone explain how these work?
4. For a solution of Cys (C), at what pH would the net charge be closest to 1? a) 10.7 b) 8.4 c) (1.9-8.4)/2 = 5.5 d) (10.7 + 8.4)/2 = 9.55 5. For a solution of Tyr (Y), what percentage of the side chain R group's OH would be deprotonated at pH = 10.5? a) 0% b) 25% c) 50% d) 100% 6. For the peptide His -Asp-Gln-Glu-Ala- Lys (HDQEAK), what would be...
C,D, and E i need help with.
17. The following peptide forms part of Human Hemoglobin subunit gammaa Asp-Leu-Lys-Gly-Thr-Phe-Ala A) Which amino acids are likely to be on the side of peptid acids are likely to be on the side of peptide that faces the interior of the protein? Insert your answer leu, Gto.Pne, Ala B) Which are likely to be facing the aqueous environment? Insert your answer Asp, lys, Thr Draw the structure of the sequence at pH7.4. Using...
I am trying to solve this, but getting lost with the units.
Could someone help me with the solution so I can check my answer?
Thanks!
14.) Methane, CH4, diffuses in a given apparatus at the rate of 30 mLimin . At what rate would a gas with a molar mass of 100 diffuse under the same conditions?
Hi, I am trying to solve a problem where I have to find the
fourier series for a square wave with an amplitude of one, w = 2pi.
How can I show that the An coeffcients of the fourier serie will be
zero for a square wave? The square wave is first wave in the
picture.
I am am trying to figure out
how to get from the starting benzene ring using friedel-crafts
acylation and getting a double bond on the end, or a halide on the
end. The halide can easily be turned into the double bond.
We were unable to transcribe this imageCHM all
can someone show me step by
step on how to solve this. I get confused on why i had to use the
pythagoreum theorum for charge b and c
Find the electric field at the location of qa in the figure below to the right.) given that q q qd +2.70 n q 1 00 n and the sua e s L 5cm on asid he a s directed magntude 1047 391050 c 1050 N/C 135counterclockwise from the +x-axis la...
please show all your work i am really trying to understand how to
solve these
Solve the equation log 4(x +61)+ log 4(x - 2) = 3 Show all of your work on paper and submit it on canvas. your won't get any credit for the last answer without submission on Canvas Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The solution(s) is/are x = (Simplify your answer. Use...
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