Insufficient information provided. The PubMed abstracts supplied do not contain relevant scientific data about peptide deformylase (PDF), the mitochondrial protein encoded on chromosome 16. The abstracts reference PDF as an abbreviation for unrelated topics: postdialysis fatigue in hemodialysis patients 1, postdischarge formula for preterm infants 2, and portable document format files in various contexts 345678. None of these abstracts discuss the enzymatic function, mechanism, disease relevance, or clinical significance of mitochondrial peptide deformylase. To provide an accurate gene function summary grounded in PubMed literature, abstracts specifically investigating peptide deformylase's role in protein synthesis, post-translational modification, mitochondrial function, or associated disease states would be required.