Term
Indicate whether the following peptides are hydrophilic or hydrophobic:
a. MLWILAA
b. VAIKVLIL
c. CSKEGCPN
d. SSIQKNET |
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Definition
a. hydrophobic
b. hydrophobic
c. hydrophilic
d. hydrophilic |
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Term
Indicate whether the following peptides are hydrophilic or hydrophobic:
e. YAQKFQGRT
f. AAPLIWWA
g. SLKSSTGCQ |
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Definition
e. hydrophilic
f. hydrophobic
g. hydrophobic |
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Term
Is the following peptide positively or negatively charged at neutral pH?
GWWMNKCHAGHLNGVYYQGGTY |
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Definition
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Term
| Consider an RNA template made from a 2:1 mixture of C:A. What would be the three amino acids most frequently incorporated into the protein? |
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Definition
| proline, histidine, threonine |
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Term
| What is the peptide sequence encoded in AUAUAUAUAUAUAUAUAUAUA...? |
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Definition
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Term
| Write the anticodons 5' to 3' of the following amino acids: L, T, and M |
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Definition
leucine anticodons: UAA, CAA, AAG, GAG, UAG, CAG
threonine anticodons: AGU, GGU, UGU, CGU
methionine anticodons: CAU |
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Term
| Write the anticodons 5' to 3' of the following amino acids: H, R, and I |
|
Definition
histidine anticodons: AUG, GUG
arginine anticodons: ACG, GCG, UCG, CCG
isoleucine anticodons: AAU, GAU, UAU |
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Term
| A histone-like protein contains the sequence PKKGSKKAVTKVQKKDGKKRKRSRK. What characteristic of this sequence makes it likely to associate with DNA? |
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Definition
| It is positively charged, which makes it easier to associate with negatively charged DNA |
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Term
| A procedure for digestion of DNA with a restriction enzyme includes a final incubation step of 5 minutes at 95 degrees C. What is the likely purpose of this final step? |
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Definition
| The incubation will inactivate the enzyme. |
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Term
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Definition
| It is an RNA molecule that can metabolize other molecule as an enzyme does. |
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Term
Name the nonprotein prosthetic groups for the following conjugated proteins:
- glycoprotein
- lipoprotein
- metalloprotein |
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Definition
| sugars, lipids, metal atoms |
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