Baylor College of Medicine -- HOUSTON -- (June 4, 2009) -- A rare, deadly developmental disorder of the lungs called alveolar capillary dysplasia with misalignment of pulmonary veins (ACD/MPV) that usually kills the infants born with it within the first month of life results from deletions or mutations in the FOXF1 transcription factor gene, said a consortium of researchers led by Baylor College of Medicine in a report that appears in the American Journal of Human Genetics.