Using cams cell adhesion molecules d tight junctions

using CAMS (cell adhesion molecules)

D. Tight junctions, often found in epithelial cells, prevent solutes from leaking into
the spaces between cells
Answer Key: A
Part 2 of 3 - 1.0 Points
Question 19 of 20
Which of the following techniques does NOT provide information about a protein’s structure
(primary, secondary, or tertiary)?

A. X-ray crystallography

B. Chromatography

C. Electron microscopy

D. Protein sequencing
Answer Key: B
Part 3 of 3 - 2.0 Points
Question 20 of 20
A 6 AA peptide contains Arg, Ser, Ala, His, Met, Tyr (random order)
An aliquot of the peptide was placed into each of 4 tubes, and each tube was then used for
the various sequencing tests below, giving the fragments shown (AA listed in fragments are
also in a random order, per fragment). Determine the amino acid sequence.

12/14/2020 LUC Sakai : CHEM 361 008 F20 : Tests & Quizzes
Treatment Cleavage Site (1-letter) Cleavage Side
Edman N-terminal residue C-terminal
Chymotrypsin F, W, Y C-terminal
Trypsin K, R C-terminal
CNBr M C-terminal

B
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