title: Isolation and translation of calvaria procollagen messenger ribonucleic acids.
abstract: Procollagen messenger ribonucleic acid (mRNA) was isolated from the calvaria of 15-day-old chick embryos by chromatographing total RNA over oligo(dT)-cellulose two times, and then fractionating the twice-bound RNA on 85% Me2SO/0-20% sucrose gradients. When analyzed on 99% formamide gels, the 27-30S fraction had three sharp fluorescent bands, one corresponding to 27S ribosomal RNA (rRNA), the others having mobilities lower than 27S corresponding to molecular weights of 1 700 000 and 1 800 000. In wheat-germ, cell-free extracts, the 27-30S fraction directed the synthesis of two prominent collagenase sensitive polypeptides with mobilities corresponding to the calvaria pro-alpha chain markers. Twelve percent of this [3H]proline-labeled, wheat-germ product could be hydroxylated with prolyl hydroxylase.
mesh_terms: D000818:Animals; D001842:Bone and Bones / Q000378:metabolism*; D002474:Cell-Free System; D002642:Chick Embryo; D008970:Molecular Weight; D010944:Plants / Q000378:metabolism; D011347:Procollagen / Q000096:biosynthesis*; D014176:Protein Biosynthesis; D012333:RNA, Messenger / Q000302:isolation & purification / Q000378:metabolism*; D014908:Triticum
chemical_list: D011347:Procollagen; D012333:RNA, Messenger