Arabinanase Abnx from Penicillium chrysogenum 31B, which belongs to the GH93 family, releases arabinobiose from the nonreducing terminus of Ξ±-1,5-L-arabinan, which is distributed in the primary cell walls of higher plants. Crystal structures of Abnx and of its complex with arabinobiose were determin
Chromatographic resolution of nucleic acids extracted from Penicillium chrysogenum
β Scribed by Saunders, Gunter ;Rogers, Mark E. ;Adlard, Maxwell W. ;Holt, Geoffrey
- Publisher
- Springer
- Year
- 1984
- Tongue
- English
- Weight
- 360 KB
- Volume
- 194
- Category
- Article
- ISSN
- 0026-8925
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β¦ Synopsis
High molecular weight DNA extracted from Penicillium chrysogenum has been fractionated using RPC-5 Analog, into three distinct types designated 1, 2 and 3. Types I and 2 have the same buoyant density of 1.710 g/cm 3 and together appear to comprise the nuclear DNA. Type 1 is enriched for repeated sequences which are normally observed in restriction digests of P. chrysogenum total DNA. Conversely, type 2 appears to be composed entirely of non-repetitive sequences. Type 3 has been identified as mitochondrial DNA, having a buoyant density of 1.695 g/ cm 3 and an estimated molecular weight of 31.6 x 106 Daltons.
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Molecular cloning experiments rely greatly on the isolation and analysis of defined DNA fragments. Agarose gel electrophoresis and polyacrylamide gel electrophoresis (reviewed in 1-11) are simple, yet powerful, high-resolution methods of separating specific DNA fragments on the basis of size and con