Assume trypsin cleavage gave two peptides

Assignment Help Chemistry
Reference no: EM13184926

Apamine is a small monomeric peptide toxin present in the venom of the honeybee. It has the sequence: CNCKAPETALCARRCQQH (a) It is known that apamine does NOT react with iodoacetate. How many disulfide bonds are present? (b) Suppose trypsin cleavage gave two peptides. Where is (are) the S-S bond(s)? (Hints: If cut by trypsin, but still held together by a disulfide bond, count it as a single peptide. Also, do not count a single amino acid as a "peptide.")

Reference no: EM13184926

Questions Cloud

Compute the net charge for each state : Draw the structure of the 4 possible ionization states of tyrosine and calculate the net charge for each state. Draw the titration curve for Tyrosine. The pKa of the carboxylic acid = 2.20. the pKa of the amino group is 9.20.
State acetaminophen and caffeine : In an TLC experiment with paprika, which red spot is capsanthing and which is capsorbin? Is it the one that travels the farthest or least? How can You tell?
State what is the boiling point of a solution of benzene : What is the boiling point of a solution of benzene containing 0.2 moles of a non volatile solute in 125 grams of benzene given that pure bezene has a boiling point of 80.1
State methylcyclohexanol to yield methylcyclohexene : Assume that you are carrying out the dehydration of 1-methylcyclohexanol to yield 1-methylcyclohexene
Assume trypsin cleavage gave two peptides : (b) Suppose trypsin cleavage gave two peptides. Where is (are) the S-S bond(s)? (Hints: If cut by trypsin, but still held together by a disulfide bond, count it as a single peptide. Also, do not count a single amino acid as a "peptide.")
Explain which does not liberate a gas when treated : Propose a structure for C4H9N, which does not liberate a gas when treated with NaNO2 and HCL, and has IR absorptions at 917, 990, and 1640, as well as an N-H absorption at 3300. The 13C NMR spectrum is as follows
The chromatographic paper in the spot testing chromatogram : the chromatographic paper in the spot testing chromatogram. predict the effect of this procedural change on the solution of the cation in the standard mixture
State solvent front reaches the top of the chromatographic : Once the solvent front reaches the top of the chromatographic paper,solvent begins to evaporate from the top edge of the paper, and the remaining solvent continues to move up the paper.
Explain the dioxouranium : The R1 value of uo2 in the solvent system used in this module is 0.68. explain which of the other cation tests used in this expirment it would interfere with, what alternate tesr reaget you would therefore use to identify that other cation and whi..

Reviews

Write a Review

Chemistry Questions & Answers

  What is the titer of the iodine solution

A solution of I2 was standardized with ascorbic acid. Using .1000 g sample of pure ascorbic acid, 23.25 ml of I2 were required to reach the starch end point.

  Few solid remained in the beaker after stirring with hcl

Some solid remained in the beaker after stirring with HCl. You washed the filter paper with ketone, which caught on fire and the filter paper was scorched

  What is the mass of stomach acid

antacids which contain CaCO3 react with stomach acid to the equation . it gives the eq but I cant type it. what is the mass of stomach acid that reacts with 1.00 grams CaCO3 ?

  Find ph of the solution at equivalence point

100 mL of 0.200 M HCl is titrated with 0.250 M NaOH .What is the pH of the solution at the equivalence point?Express the pH numerically.

  How does size ,electron configuration of sodium atom change

When the sodium atom becomes a sodium ion, how does the size and electron configuration of the sodium atom change?

  Explain acetic anhydride to synthesize aspirin

In an experiment, 2.50 g salicycylic acid was reacted with excess acetic anhydride to synthesize aspirin, as shown below.

  What is the activation energy of the reaction

Consider the reaction NO + O3 → NO2 + O2 Which has a rate constant given by k = 1.8×10-12 e-1370/T cm3 molecules-1 s-1

  Explain what is the mechanism for the oxidation of an aldose

What is the mechanism for the oxidation of an aldose to an aldonic acid

  State how many molecules of acetic acid needed

Determine the molarity of this solution. (b) If I use 1 cup of vinegar (236.588 mL) to help create a cleaning solution for my windows, how many molecules of acetic acid is this?

  How many cans of mountain lightning

how many cans of Mountain Lightning would an individual have to drink to die from a tartrazine overdose If the LD50 of tartrazine in humans is supposed to be 12,750 mg/kg (as it is for mice) and the average human weighs 70 kilograms,?

  How much ammonia is produced

Ammonia (NH3) is widely used as a fertilizer and in many household cleaners. How much ammonia is produced when 6.32 mol of hydrogen gas react with an excess of nitrogen gas?Answer in units of mol

  How many stereoisomers are possible

How many stereoisomers are possible for each of the following substances? Draw them, and name each by the R-S and E-Z conventions.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd