» MITOMAP    Genome database of polymorphisms and mutations of the human mitochondrial DNA .    http://www.mitomap.org/

» MitoDat    This database is dedicated to the nuclear genes specifying the enzymes, structural proteins, and other proteins, many still not identified, involved in mitochondrial biogenesis and function.    http://www-lecb.ncifcrf.gov/mitoDat/

» Mitochondrial DNA Concordance    Features a cross-referenced list of single nucleotide substitutions in the two hypervariable segments of the mtDNA control region.    http://www.bioanth.cam.ac.uk/mtDNA/

» The Kennell Lab - Saint Louis University    Mitochondrial research, especially the genetics of filamentous fungi. Includes information describing mitochondrial genomes, mutants, extrachromosomal plasmids, and nuclear genes involved in mitochondrial function.    http://pages.slu.edu/faculty/kennellj/index.html