PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21242291-3 2011 In mice, RAD21L is expressed exclusively in early meiosis: it apparently replaces RAD21 in premeiotic S phase, becomes detectable on the axial elements in leptotene, and stays on the axial/lateral elements until mid pachytene. leptotene 155-164 RAD21 cohesin complex component Mus musculus 9-14