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dnaA | Chromosomal replication initiator protein; Plays an important role in the initiation and regulation of chromosomal replication. Binds to the origin of replication; it binds specifically double-stranded DNA at a 9 bp consensus (dnaA box): 5'- TTATC[CA]A[CA]A-3'. DnaA binds to ATP and to acidic phospholipids. (459 aa) | ||||
dnaN | DNA polymerase III beta subunit; Confers DNA tethering and processivity to DNA polymerases and other proteins. Acts as a clamp, forming a ring around DNA (a reaction catalyzed by the clamp-loading complex) which diffuses in an ATP- independent manner freely and bidirectionally along dsDNA. Initially characterized for its ability to contact the catalytic subunit of DNA polymerase III (Pol III), a complex, multichain enzyme responsible for most of the replicative synthesis in bacteria; Pol III exhibits 3'-5' exonuclease proofreading activity. The beta chain is required for initiation of [...] (387 aa) | ||||
hetR | Heterocyst differentiation protein; Controls heterocyst differentiation. Has both a protease and a DNA-binding activity. Binds the promoter regions of hetR, hepA and patS. (299 aa) | ||||
hetN | Ketoacyl reductase; May be involved in repressing heterocyst differentiation and may be essential for preventing all vegetative cells from differentiating. (287 aa) |