PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 26092210-1 2015 PURPOSE: RRM1 is the large subunit of ribonucleotide reductase (RNR), which catalyzes the rate-limiting step in the production of deoxyribonucleotides (dNTPs) and is essential for DNA synthesis and repair. Parathion 152-157 ribonucleotide reductase catalytic subunit M1 Homo sapiens 9-13