21048
A similar reduction was detected in the ability of ribosomes to translocate peptidyl - tRNA from the A - site to the P - site , an observation coinciding with the notion that regulation of protein synthesis by Hg ( 2 + ) mainly occurs at the initiation and elongation stages of translation .
 Chemical: Hg ( 2 + )
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Hg ( 2 + )