PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7721804-6 1995 Because the myocardial carnitine content is very low at birth and rises dramatically over the next several weeks, it can be estimated that L-CPT I (Km for carnitine of only 30 microM compared with a value of 500 microM for M-CPT I) is responsible for some 60% of total cardiac fatty acid oxidation in the newborn rat; the value falls to approximately 4% in adult animals. Fatty Acids 277-287 carnitine palmitoyltransferase 1B Rattus norvegicus 141-146