uu15a03.y2 Soares_mammary_gland_NMLMG Mus musculus cDNA clone IMAGE:3371980 5' similar to gb:X14420_cds1 PROCOLLAGEN ALPHA 1(III) CHAIN PRECURSOR (HUMAN); gb:X52046 M.musculus COL3A1 gene for collagen alpha-I (MOUSE), mRNA sequence