>tr|A0A8C6HZ27|A0A8C6HZ27_MUSSI Upstream stimulatory factor 1 OS=Mus spicilegus MKGQQKTAETEEGTVQIQEGAVATGEDPTSVAIASIQSAATFPDPNVKYVFRTENGGQVM YRVIQVSEGQLDGQTEGSGAISGYPATQSMTQAVIQGAFTSDDAVDTEGAAAETHYTYFP STAVGDGSGGTTSGSTTAVVTTQGSEALLGQATPPSTGQFFVMMSPQEVLQGGSQRSIAP RTHPYSPKSEAPRTTRDEKRRAQHNEVERRRRDKINNWIVQLSKIIPDCSMESTKSGQSK GGILSKACDYIQELRQSNHRLSEELQGLDQLQLDNDVLRQQVEDLKNKNLLLRAQLRHHG LEVVIKNDSN