| greB | b3406 | transcription elongation factor and transcript cleavage |
EG11578 |
FUNCTION: NECESSARY FOR EFFICIENT RNA POLYMERASE TRANSCRIPTION
ELONGATION PAST TEMPLATE-ENCODED ARRESTING SITES. THE ARRESTING
SITES IN DNA HAVE THE PROPERTY OF TRAPPING A CERTAIN FRACTION
OF ELONGATING RNA POLYMERASES THAT PASS THROUGH, RESULTING IN
LOCKED TERNARY COMPLEXES. CLEAVAGE OF THE NASCENT TRANSCRIPT BY
CLEAVAGE FACTORS SUCH AS GREA OR GREB ALLOWS THE RESUMPTION OF
ELONGATION FROM THE NEW 3'TERMINUS. GREB RELEASES SEQUENCES OF
UP TO 9 NUCLEOTIDES IN LENGTH.
SIMILARITY: BELONGS TO THE GREA/GREB FAMILY.
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