1766
Quantitative evaluation of the steady state kinetics of MEK inhibition by these compounds reveals that U0126 has approximately 100 - fold higher affinity for deltaN3 - S218E / S222D MEK than does PD098059 .
 GENE: MEK; GENE: deltaN3 - S218E / S222D MEK
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: MEK; GENE: deltaN3 - S218E / S222D MEK