- Localization of the human gene for the El alpha subunit of branched chain keto acid dehydrogenase (BCKDHA) to chromosome 19q13.1----q13.2. Fekete, G., Plattner, R., Crabb, D.W., Zhang, B., Harris, R.A., Heerema, N., Palmer, C.G. Cytogenet. Cell Genet. (1989)