Sigma factors are initiation factors that promote the attachment of plastid-encoded RNA polymerase (PEP) to specific initiation sites and are then released.

Belongs to the sigma-70 factor family.

571 amino acids

MASFNSFPIPKQIVGSSSSSSSSTSRPRILVRSSLTSSMTSTNSMLVFVHPHPLIKHWLSLLRSDQTSFPIFVRIPMTSVVATRWSFLSSVKEESRIYQNDSLKACGCASVSPYTAQNNVYVELKDPKENIGVGSAERSYSSRSMLQYNLLAKNLLALEETFVALDSVRMERDIMLQMGKLGAAELFKTCLSRYRGSSITSCLSDTTELVDTTPNQQVFVSSRRKVKKKARRSSVTAENGDQSSLPIGLRTTWNNIDVPRVRRPPKYRKKRERISRNETEMSTGVKIVADMERIRTQLEEESGKVASLSCWAAAAGMNEKLLMRNLHYGWYCRDELVKSTRSLVLFLARNYRGLGIAHEDLIQAGYVGVLQGAERFDHTRGYKFSTYVQYWIRKSMSTMVSRHARGVHIPSSIIRTINHIQKARKTLKTSHGIKYAADEEIAKLTGHSVKKIRAANQCLKVVGSIDKKVGDCFTTKFLEFTPDTTMESPEEAVMRQSARRDIHDLLEGLEPREKQVMVLRYGLQDYRPKSLEEIGKLLKVSKEWIRKIERRAMAKLRDQPNAEDLRYYLNQ

64.9 kDa

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)

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