tokens: The pJR vectors differ among them in : ( a ) the selectable marker ( Saccharomyces cerevisiae LEU 2 gene , which complements S. pombe leu1- gene and S. pombe ura4+ and his3+ genes ) ; ( b ) the thiamine-repressible nmt1 promoter ( 3X , 41X and 81X with extremely high , moderate or low transcription efficiency , respectively ) ; and ( c ) the multiple cloning site ( two multiple cloning sites , with 12 restriction sites each ) .
folded_tokens: the pjr vector differ among they in : ( a ) the selectable marker ( saccharomyces cerevisiae leu 2 gene , which complement S. pombe leu1- gene and S. pombe ura4+ and his3+ gene ) ; ( b ) the thiamine-repressible nmt1 promoter ( 3x , 41x and 81x with extremely high , moderate or low transcription efficiency , respectively ) ; and ( c ) the multiple cloning site ( two multiple clone site , with 12 restriction site each ) .