| RRC ID |
15464
|
| 著者 |
Helianti I, Okubo T, Morita Y, Tamiya E.
|
| タイトル |
Characterization of thermostable native alkaline phosphatase from an aerobic hyperthermophilic archaeon, Aeropyrum pernix K1.
|
| ジャーナル |
Appl Microbiol Biotechnol
|
| Abstract |
This paper reports the characterization of an alkaline phosphatase (AP) from an aerobic hyperthermophilic Archaeon Aeropyrum pernix K1. The native AP was purified into homogeneity. The enzyme is predicted as a homodimeric structure with a native molecular mass of about 75 kDa and monomer of about 40 kDa. Apparent optimum pH and temperature were estimated at 10.0 and above 95 degrees C, respectively. Magnesium ion increased both the stability and the activity of the enzyme. A. pernix AP has been demonstrated as a very thermostable AP, retaining about 76% of its activity after being incubated at 90 degrees C for 5.5 h and 67% of its activity after being incubated at 100 degrees C for 2.5 h, respectively, under the presence of Mg(II). Enzyme activity was increased in addition of exogenous Mg(II), Ca(II), Zn(II), and Co(II).
|
| 巻・号 |
74(1)
|
| ページ |
107-12
|
| 公開日 |
2007-2-1
|
| DOI |
10.1007/s00253-006-0640-y
|
| PMID |
17256119
|
| MeSH |
Aerobiosis
Aeropyrum / enzymology*
Aeropyrum / growth & development
Alkaline Phosphatase* / chemistry
Alkaline Phosphatase* / isolation & purification
Alkaline Phosphatase* / metabolism
Enzyme Stability
Hot Temperature*
Hydrogen-Ion Concentration
Substrate Specificity
|
| IF |
3.53
|
| 引用数 |
6
|
|
WOS 分野
|
BIOTECHNOLOGY & APPLIED MICROBIOLOGY
|
| リソース情報 |
| 一般微生物 |
JCM 9820 |
