hac1 Transcriptional activator involved in the unfolded protein response (UPR) pathway. Recognizes and binds to the UPR element (UPRE) in the promoter of UPR-regulated genes. Increases the synthesis of endoplasmic reticulum-resident proteins required for protein folding as well as components of the secretory pathway (By similarity). HAC1_HYPJE Transcriptional activator hac1 451 MAFQQSSPLVKFEASPAESFLSAPGDNFTSLFADSTPSTLNPRDMMTPDSVADIDSRLSVIPESQDAEDDESHSTSATAPSTSEKKPVKKRKSWGQVLPEPKTNLPPRKRAKTEDEKEQRRVERVLRNRRAAQSSRERKRLEVEALEKRNKELETLLINVQKTNLILVEELNRFRRSSGVVTRSSSPLDSLQDSITLSQQLFGSRDGQTMSNPEQSLMDQIMRSAANPTVNPASLSPSLPPISDKEFQTKEEDEEQADEDEEMEQTWHETKEAAAAKEKNSKQSRVSTDSTQRPAVSIGGDAAVPVFSDDAGANCLGLDPVHQDDGPFSIGHSFGLSAALDADRYLLESQLLASPNASTVDDDYLAGDSAACFTNPLPSDYDFDINDFLTDDANHAAYDIVAASNYAAADRELDLEIHDPENQIPSRHSIQQPQSGASSHGCDDGGIAVGV