Homologs of Rru_A2487 from Rhodospirillum rubrum S1H
BsuBIPstI restriction endonuclease-like (NCBI)
SEED: BsuBI-PstI family restriction endonuclease (PF06616)
5 hits from BLASTp (E < 0.01)
Or try PaperBLAST, fast.genomics, the ENIGMA genome browser, or the comparative fitness browser