Molecular Cloning and Characterization of a Novel α-Amylase from Antarctic Sea Ice Bacterium Pseudoalteromonas sp. M175 and Its Primary Application in Detergent

Table 6

Comparison of Amy175 with other halotolerant or halophile α-amylases.

α-amylase	Special feature	NaCl (M) for optimum activity	Asp+Glu (%)	Arg+lys (%)	Excess acidic amino acids (%)	Reference
Amy175	Halotolerant	1	13.3	8.3	5.0	This study
AHA	Halotolerant	0.5	10.4	5.7	4.7	[21]
AmyZ	Halotolerant	1.5	15.4	9.7	5.7	[23]
Amy13A	Halotolerant	0.86	16.7	11.9	4.8	[48]
AmyH	Halophile	4	16.5	6.1	10.4	[51]
α-	Haloalkaliphilic	2.5	24.3	5.4	18.9	[52]

The amino acid compositions of α-amylases were obtained from Genbank.