Simkhada JR, Lee HJ, Jang SY, Kim JH, Lee HC, Sohng JK, Yoo JC. A novel low molecular weight phospholipase D from Streptomyces sp. CS684.
BIORESOURCE TECHNOLOGY 2009;
100:1388-1393. [PMID:
18930391 DOI:
10.1016/j.biortech.2008.09.008]
[Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2008] [Revised: 08/30/2008] [Accepted: 09/02/2008] [Indexed: 05/26/2023]
Abstract
With the aim of isolating economically viable enzymes from a microbial source, a novel phospholipase D (PLD) was purified from Streptomyces sp. CS684 (PLD(684)). PLD(684) had molecular weight of 29 kDa, which makes it the second smallest PLD reported so far. The enzyme activity was optimum at pH 6 and 45 degrees C, and enhanced by various detergents. It was stable from pH 7 to 9 and at or below 45 degrees C when assayed after 40 h and 2h, respectively. The K(m) and V(max) values for phosphatidylcholine were 1.16 mM and 1453.74 micromol min(-1)mg(-1), respectively. It catalyzed the transphosphatidylation of glycerol, but not that of l-serine, myo-inositol or ethanolamine. Low molecular weight PLD(684) with transphosphatidylation activity may be utilized in the industrial production of rare and commercially important phospholipids.
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