Effect of metal ions on the activity of extracellular phytase of Bacterium sp.

被引：3

作者：

Igamnazarov, RP ^{[1
]}

Tillaeva, ZE ^{[1
]}

Umarova, GB ^{[1
]}

机构：

[1] Mirzo Ulugbek Tashkent State Univ, Tashkent, Uzbekistan

来源：

CHEMISTRY OF NATURAL COMPOUNDS | 1999年 / 35卷 / 06期

关键词：

Sodium; Organic Chemistry; Phytase Activity; Sodium Phytate; Extracellular Phytase;

D O I：

10.1007/BF02236298

中图分类号：

R914 [药物化学];

学科分类号：

100701 ;

摘要：

The effect of Ca2+, Mg2+, Cu2+, and Fe3+ on the activity of Bacterium sp. phytase is studied. The ions Ca2+ and Mg2+ at low concentrations act as activators whereas Cu2+ and Fe3+ are phytase inhibitors. Inhibition of phytase activity by Cu2+ is proposed to be competitive whereas Fe3+ noncompetitively inhibits sodium phytate.

引用

页码：661 / 664

页数：4

共 14 条

[1] HYDROLYSIS OF INOSITOL PHOSPHATES BY AEROBACTER AEROGENES [J].

GREAVES, MP ;

ANDERSON, G ;

WEBLEY, DM .

BIOCHIMICA ET BIOPHYSICA ACTA, 1967, 132 (02) :412-+

[2]

IGAMNAZAROV RP, 1988, THESIS TASHKENT

[3] INOSITOL PHOSPHATE PHOSPHATASES OF MICROBIOLOGICAL ORIGIN - SOME PROPERTIES OF PARTIALLY PURIFIED PHOSPHATASES OF ASPERGILLUS-FICUUM NRRL-3135 [J].

IRVING, GCJ ;

COSGROVE, DJ .

AUSTRALIAN JOURNAL OF BIOLOGICAL SCIENCES, 1974, 27 (04) :361-368

[4] INOSITOL PHOSPHATE PHOSPHATASES OF MICROBIOLOGICAL ORIGIN - SOME PROPERTIES OF A PARTIALLY PURIFIED BACTERIAL (PSEUDOMONAS SP) PHYTASE [J].

IRVING, GCJ ;

COSGROVE, DJ .

AUSTRALIAN JOURNAL OF BIOLOGICAL SCIENCES, 1971, 24 (03) :547-+

[5]

JONATHAN SI, 1986, PLANT PHYSIOL, V82, P333

[6]

KARSHIBAEVA ZE, 1995, SCI C MOD PROBL BIOL, P55

[7] CANOLA PHYTASE - ISOLATION AND CHARACTERIZATION [J].

KIM, H ;

ESKIN, NAM .

JOURNAL OF FOOD SCIENCE, 1987, 52 (05) :1353-+

[8] PHYTASES .2. PROPERTIES OF PHYTASE FRACTIONS F1 AND F2 FROM WHEAT BRAN AND MYOINOSITOL PHOSPHATES PRODUCED BY FRACTION F2 [J].

LIM, PE ;

TATE, ME .

BIOCHIMICA ET BIOPHYSICA ACTA, 1973, 302 (02) :316-328

[9] PHYTASE OF NAVY BEANS (PHASEOLUS-VULGARIS) [J].

LOLAS, GM ;

MARKAKIS, P .

JOURNAL OF FOOD SCIENCE, 1977, 42 (04) :1094-+

[10]

LOLAS GM, 1977, J FOOD SCI, V42, P1106

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