| First Author | Dougherty GJ | Year | 1989 |
| Journal | J Biol Chem | Volume | 264 |
| Issue | 11 | Pages | 6509-14 |
| PubMed ID | 2784793 | Mgi Jnum | J:9704 |
| Mgi Id | MGI:58161 | Doi | 10.1016/s0021-9258(18)83377-4 |
| Citation | Dougherty GJ, et al. (1989) Molecular cloning of 114/A10, a cell surface antigen containing highly conserved repeated elements, which is expressed by murine hemopoietic progenitor cells and interleukin-3-dependent cell lines. J Biol Chem 264(11):6509-14 |
| abstractText | Monoclonal antibody 114/A10, raised against the murine multipotential hemopoietic progenitor cell line B6SUtA, identifies an antigen highly expressed by primary myeloid progenitor cells, the myelomonocytic leukemia cell line WEHI-3, and various interleukin-3 (IL-3)-dependent cell lines. Western blotting studies indicate that the 114/A10 antigen has a mean relative molecular mass of 150,000 but varies greatly in size range between different cell types. cDNA clones encoding this protein were isolated from a plasmid-based expression vector library prepared from B6SUtA RNA. Three clones corresponding in size to the two major mRNA species detected in IL-3-dependent cell lines (3.0 and 2.2 kilobase pairs) and differing in their utilization of alternative polyadenylation signals were obtained. These clones contain a single long open reading frame of 573 amino acids possessing the typical characteristics of an integral membrane protein. A particularly striking feature of this sequence is the presence at the extracellular amino terminus of a series of eight highly conserved 27-amino acid, serine/threonine-rich (55%) tandem repeats that may serve as sites of extensive glycosylation. The extracellular domain also contains three epidermal growth factor-like cysteine-rich repeats. The distribution and structural characteristics of the 114/A10 antigen suggest a possible regulatory role in the cellular response to IL-3. |
