Title : Purification, characterization and comparison of two non-haem bromoperoxidases from Streptomyces aureofaciens ATCC 10762 - Weng_1991_J.Gen.Microbiol_137_2539 |
Author(s) : Weng M , Pfeifer O , Krauss S , Lingens F , van Pee KH |
Ref : J Gen Microbiol , 137 :2539 , 1991 |
Abstract :
Two non-haem bromoperoxidases (BPO 1 and BPO 2) were purified from the 7-chlorotetracycline-producing strain Streptomyces aureofaciens ATCC 10762. Both enzymes showed azide-insensitive brominating activity, and bromide-dependent peroxidase activity. BPO 1 was a dimer (Mr 65,000) with subunits of identical size (Mr 31,000). The pI was estimated to be 4.5. The enzyme did not cross-react with antibodies raised against the non-haem bromoperoxidase (Mr 90,000) from S. aureofaciens Tu24, a strain that also produces 7-chlorotetracycline. The Mr of BPO 2 was estimated to be 90,000. The enzyme had three identical subunits (Mr 31,000), and its isoelectric point was 3.5, identical with that of the bromoperoxidase from S. aureofaciens Tu24. Moreover, BPO 2 was immunologically identical with the bromoperoxidase from S. aureofaciens Tu24, although both it and BPO 1 could be distinguished electrophoretically from the latter bromoperoxidase. |
PubMedSearch : Weng_1991_J.Gen.Microbiol_137_2539 |
PubMedID: 1783900 |
Gene_locus related to this paper: strau-brpa1 , strau-brpa2 |
Gene_locus | strau-brpa1 strau-brpa2 |
Weng M, Pfeifer O, Krauss S, Lingens F, van Pee KH (1991)
Purification, characterization and comparison of two non-haem bromoperoxidases from Streptomyces aureofaciens ATCC 10762
J Gen Microbiol
137 :2539
Weng M, Pfeifer O, Krauss S, Lingens F, van Pee KH (1991)
J Gen Microbiol
137 :2539