Aconitase (E.C. 4.2.1.3) mitochondrial locus mapped to human chromosome 22: studies with Chinese hamster--human somatic cell hybrids.

Three separate somatic cell fusions were made between Chinese hamster lines and human lymphocytes containing (1) a 3/4 translocation, (2) an X/9 translocation, and (3) a 17/9 translocation. Eleven independently derived hybrids showed that only human chromosome 22 was consistently present when human ACONM was expressed and absent when human ACONM was not expressed. These studies assign a gene for human ACONM to chromosome 22, and are consistent with prior gene-mapping results.