Question

draw the following tripeptide a-g-c in its zwitter-ion form

draw the following tripeptide a-g-c in its zwitter-ion form

Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Remember that zwitter ions are molecules with chargeable groups that are in a state of 0 charge, due to compensating some charges with others. Our amino acids are N-Alanine- Glycine-Cysteine-C.

Alanine has only its amino group, glycine doesn't have any free ionic group to provide, and cisteine can only provide its carboxylic group. So the zwitter ion of this peptide requires the carboxylic group from the cysteine to be negatively charged (COO-), while the amino group from alanine is positively charged (NH3+):

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Draw the amino acids alanine, serine and isoleucine and then show how a dehydration reaction will...
Draw the amino acids alanine, serine and isoleucine and then show how a dehydration reaction will form peptide bonds in the tripeptide. Which of the amino acids has a polar R group and which one has a non-polar R group? Name the tripeptide
5. Draw the Lewis structures for the nitrate ion. (There are three resonance structures.) Using these...
5. Draw the Lewis structures for the nitrate ion. (There are three resonance structures.) Using these Lewis structures describe the bonding in the nitrate ion. a) What is the geometry about all of the atoms: what is the geometry about the central N atom? What is the electron domain geometry of the oxygen atoms? What are the hybrid orbitals on the N and O atoms in the ion? b) How many sigma bonds are in this ion? Which orbitals overlap...
A. An element with the valence electron configuration 3s2 would form a monatomic ion with a...
A. An element with the valence electron configuration 3s2 would form a monatomic ion with a charge of . In order to form this ion, the element will electron(s) from/into the subshell(s). B. An element with the valence electron configuration 3s23p5 would form a monatomic ion with a charge of . In order to form this ion, the element will electron(s) from/into the subshell(s).
Cyaphide is the phosphorous analog to the cyanide ion, with phosphorous replacing nitrogen. a) Draw the...
Cyaphide is the phosphorous analog to the cyanide ion, with phosphorous replacing nitrogen. a) Draw the Lewis dot structure for the cyaphide ion and give the formal charges on each atom. Are the formal charges consistent with electronegativity? b) Draw a molecular orbital energy diagram for the cyaphide ion. Give the bond order. Is the bond order consistent with the Lewis structure?
Tetrachlorocobalt (II) ion reacts with water to form hexaaquacobalt (II) ion according to the following net...
Tetrachlorocobalt (II) ion reacts with water to form hexaaquacobalt (II) ion according to the following net ionic equation: [CoCl4]2-(aq, blue) + 6 H2O(l) <=> [Co(H2O)6]2+(aq, pink) + 4 Cl-(aq) (A) A student doing this experiment placed a test tube containing a blue equilibrium mixture in an ice-water bath. The solution turned pink. When the student removed the test tube from the ice-water bath and placed it in the hot water bath, the solution turned blue. Is the forward reaction exothermic...
Draw the predominate form(s) of tyrosine at the following pH values a. pH 5.0 b. pH...
Draw the predominate form(s) of tyrosine at the following pH values a. pH 5.0 b. pH 10.0 c. pH 10.9
Which of the following statements is true? Choose all that apply. a) The OH- ion is...
Which of the following statements is true? Choose all that apply. a) The OH- ion is the basic species in the Arrhenius theory. b) All Brønsted-Lowry acids form a hydronium ion in aqueous solutions. c) All Brønsted-Lowry bases form a hydronium ion in aqueous solutions. d) Arrhenius bases are covalent compounds in the pure state. e) Arrhenius acids are ionic compounds in the pure state.
The solubility of CaCl2 in water at 25°C is 81.1 g/100 mL; at 0°C its solubility...
The solubility of CaCl2 in water at 25°C is 81.1 g/100 mL; at 0°C its solubility decreases to 59.5 g/100 mL. Answer the following questions about an aqueous solution of 26.4 g of CaCl2 in a volume of 37.5 mL: a. At 25°C, is this a saturated solution? b. If the solution is cooled to 0°C, do you expect a precipitate to form? c. If the solution is slowly cooled to 0°C and no precipitate forms, then what kind of...
What is the dominant form of the phosphate ion in (a) a lake at pH=5.0, and...
What is the dominant form of the phosphate ion in (a) a lake at pH=5.0, and (b) seawater with pH=8.0, and what is the ration of this form to the next most abundant form? Ka1=10-2.17 , Ka2=10-7.31 , Ka2=10-12.36
Draw a structure for an alcohol that exhibits a molecular ion at M+ = 88 and...
Draw a structure for an alcohol that exhibits a molecular ion at M+ = 88 and that produces fragments at m/z = 73, m/z = 70 and m/z = 59.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT