The regulatory sequence that is before -LRB- upstream -LRB- - -RRB- , towards the NUMBER@1 ' DNA end -RRB- the coding sequence is called NUMBER@1 ' untranslated region -LRB- NUMBER@1 ` UTR -RRB- , and sequence found following -LRB- downstream -LRB- + -RRB- , towards the NUMBER@2 ' DNA end -RRB- the coding sequence is called NUMBER@2 ' untranslated region -LRB- NUMBER@2 ` UTR -RRB- .

The regulatory sequence that is before , or NUMBER@1 ' , of the coding sequence is called NUMBER@1 ' untranslated region -LRB- NUMBER@1 ` UTR -RRB- , and sequence found following , or NUMBER@2 ' , of the coding sequence is called NUMBER@2 ' untranslated region -LRB- NUMBER@2 ` UTR -RRB- .
