Cold-adaptive alkaline protease from the psychrophilic sp. 547: enzyme characterization and gene cloning
YANG XiangSheng, CHEN XingLin , XU XianZhong , ZENG RunYing
Advances in Polar Science . 2011, (1): 49 -54 .  DOI: 10.3724/SP.J.1085.2011.00049