0 . ▁The ▁function ▁of ▁the ▁region ▁is ▁not ▁well ▁understood ▁but ▁it ▁may ▁be ▁involved ▁in ▁prevent ing ▁hel ices ▁from ▁forming ▁due ▁to ▁the ▁rig id ▁structure ▁of ▁pro line . ▁ ▁Second ary ▁structure ▁A ▁cross - program ▁cons ensus ▁predicted ▁that ▁UP F 0 5 7 5 ▁protein ▁C 1 9 orf 6 7 ▁forms ▁four ▁alpha ▁hel ices ▁and ▁two ▁beta ▁sheets ▁in ▁the ▁following ▁locations ▁in ▁the ▁am ino ▁acid ▁sequence : ▁ ▁Post - trans l ational ▁modifications ▁ ▁Ac et yl ation ▁is ▁likely ▁to ▁occur ▁at ▁the ▁N - ter minus ▁while ▁the ▁C - ter minus ▁is ▁unlikely ▁to ▁be ▁modified . ▁O - G ly cos yl ation ▁is ▁predicted ▁to ▁occur ▁at ▁am ino ▁ac ids ▁ 1 8 ▁and ▁ 6 7 . ▁Several ▁possible ▁ph osph ory lation ▁sites ▁were ▁identified ▁along ▁with ▁the ▁associated ▁kin ases : ▁ ▁Sub cell ular ▁local ization ▁ ▁UP F 0 5 7 5 ▁protein ▁C 1 9 orf 6 7 ▁is ▁expected ▁to ▁be ▁target ed ▁in ▁the ▁nucle us , ▁specifically ▁the ▁nucle ol us . ▁ ▁Expression ▁and ▁reg ulation ▁ ▁Reg ulation ▁of ▁gene ▁expression ▁ ▁The ▁prom oter ▁region ▁is ▁predicted ▁to ▁start ▁ 1 , 3 0 3   bp ▁up stream ▁from ▁the ▁ 5 ' ▁U TR ▁and ▁consist ▁of ▁ 1 , 4 4 7   bp , ▁causing ▁ 1 4 4   bp ▁to ▁overlap ▁with ▁the ▁ 5 ' ▁U