Q. 17.115 - An Introduction to General, Organic, and Biological Chemistry

Question

Endorphins are polypeptides that reduce pain. What is the amino acid order for the endorphin leucine enkephalin(leu-enkephalin), which has the following mRNA? $(17.5)$

AUG UAC GGU GGA UUU CUA UAA

Step-by-Step Solution

Answer

The order of leu-enkephalin is START-Tyr-Gly-Gly-Phe-Leu-STOP.

Step 1 : Given information

We have to find out what is the amino acid order for the endorphin leucine enkephalin(leu-enkephalin), which has the following mRNA.

Step 2:Explanation

Endorphins are polypeptides that reduce pain.

The order of leu-enkephalin is  START-Tyr-Gly-Gly-Phe-Leu-STOP.

AUG corresponds to Methionine amino acid,

UAC corresponds to Tyrosine amino acid, 

GGU corresponds to Glycine amino acid,

GGA corresponds to Glycine amino acid, 

UUU corresponds to Phenylalanine amino acid,  

CUA corresponds to Leucine amino acid, 

UAA corresponds to Glutamine amino acid,