The Psu protein of phage satellite P4 inhibits transcription termination factor rho by forced hyper-oligomerization.

Complex of E. coli transcription termination factor Rho with ATP and P4 polarity suppression protein Psu

MNLTELKNTPVSELITLGENMGLENLARMRKQDIIFAILKQHAKSGEDIFGDGVLEILQDGFGFLRSADSSYLAGPDDIY
VSPSQIRRFNLRTGDTISGKIRPPKEGERYFALLKVNEVNFDKPENARNKILFENLTPLHANSRLRMERGNGSTEDLTAR
VLDLASPIGRGQRGLIVAPPKAGKTMLLQNIAQSIAYNHPDCVLMVLLIDERPEEVTEMQRLVKGEVVASTFDEPASRHV
QVAEMVIEKAKRLVEHKKDVIILLDSITRLARAYNTVVPASGKVLTGGVDANALHRPKRFFGAARNVEEGGSLTIIATAL
IDTGSKMDEVIYEEFKGTGNMELHLSRKIAEKRVFPAIDYNRSGTRKEELLTTQEELQKMWILRKIIHPMGEIDAMEFLI
NKLAMTKTNDDFFEMMKRS

MESTALQQAFDTCQNNKAAWLQRKNELAAAEQEYLRLLSGEGRNVSRLDELRNIIEVRKWQVNQAAGRYIRSHEAVQHIS
IRDRLNDFMQQHGTALAAALAPELMGYSELTAIARNCAIQRATDALREALLSWLAKGEKINYSAQDSDILTTIGFRPDVA
SVDDSREKFTPAQNMIFSRKSAQLASRQSV

rho, nitA, psuA, rnsC, sbaA, tsu, b3783, JW3756

Transcription termination, Phage inhibitor, GENE REGULATION, TRANSCRIPTION