Arthrobacter luteus

Arthrobacter luteus (ALU) is a gram stain positive bacteria with the following taxonomy:

Bacteria; Actinobacteria; Actinobacteria (class); Actinobacteridae; Actinomycetales; Micrococcineae; Micrococcaceae; Arthrobacter. A.lu. is a species of facultatively anaerobic, pleomorphic, branching, non-motile, non-sporulating, non-acid-fast, and catalase-positive rods (0.6-1.0 x 0.8-10.0 μm x μm).^[1] All members of the Arthrobacter family are obligate aerobes. A Restriction endonuclease enzyme is extracted from Alu that acts at the centre of a palindromic tetranucleotide sequence to give even-ended duplex DNA fragments phosphorylated at the 5'-end.

The restriction site Alu-I itself is a 4-base cutter: AGCT.^[2]

References