根拠: gel filtration, The data suggest that KabA is of high purity and is a tetramer in solution using size exclusion chromatography to estimate molecular weight corresponded to the observed ...根拠: gel filtration, The data suggest that KabA is of high purity and is a tetramer in solution using size exclusion chromatography to estimate molecular weight corresponded to the observed molecular weight based on Native (non-denaturing) gel electrophoresis analysis.