| First Author | Takahara K | Year | 1996 |
| Journal | Genomics | Volume | 34 |
| Issue | 2 | Pages | 157-65 |
| PubMed ID | 8661043 | Mgi Jnum | J:33379 |
| Mgi Id | MGI:80860 | Doi | 10.1006/geno.1996.0260 |
| Citation | Takahara K, et al. (1996) Characterization of a novel gene product (mammalian tolloid-like) with high sequence similarity to mammalian tolloid/bone morphogenetic protein-1. Genomics 34(2):157-65 |
| abstractText | Bone morphogenetic protein-1 (BMP-1), a metalloprotease isolated from osteogenic extracts of demineralized bone, is capable of cleaving the C-propeptides of procollagen types I, II, and III. A single mammalian gene produces alternatively spliced RNA transcripts for BMP-1 and for a second longer protein, designated mammalian tolloid (mTld) due to a domain structure identical to that of the Drosophila dorsal-ventral patterning gene product tolloid (Tld). Here we report the use of a cDNA library, prepared from BMP-1/mTld-null mouse embryos, to isolate cDNA clones for a novel mammalian protein with a domain structure identical to that of mTld. The new protein, designated mammalian tolloid-like (mTll), has 76% identity with mTld for amino acid residues in all domains downstream of, and including, the protease domain. In contrast, the N-terminal activation domains of the two proteins show little similarity. In situ hybridizations show the distribution of mTll RNA to overlap extensively that previously shown for the BMP-1 and mTld RNA forms. However, mTll shows additional strong expression in structures of the developing, neonatal, and adult brain in which expression of BMP-1 and mTld has not been observed. The murine mTll gene (Tll) is mapped to central chromosome 8, which is a different chromosomal location than that of the BMP-1/mTld gene. Loci for some developmental abnormalities map to the same general chromosomal location as Tll. |
