An upstream activator sequence derived from the yeast PGK gene. The upstream activator sequence is contained in the 5' region of the yeast PGK gene between nucleotides -324 and -455. The upstream activator sequence has synthetic linkers attached to either end to facilitate attachment to a vector. Vectors...http://www.google.com.tw/patents/US4898823?utm_source=gb-gplus-share專利 US4898823 - DNA sequence
