| First Author | Bhaumik M | Year | 1995 |
| Journal | Gene | Volume | 164 |
| Issue | 2 | Pages | 295-300 |
| PubMed ID | 7590346 | Mgi Jnum | J:29635 |
| Mgi Id | MGI:77160 | Doi | 10.1016/0378-1119(95)00260-d |
| Citation | Bhaumik M, et al. (1995) Cloning and chromosomal mapping of the mouse Mgat3 gene encoding N-acetylglucosaminyltransferase III. Gene 164(2):295-300 |
| abstractText | Complex and hybrid N-linked carbohydrates synthesized by mammalian cells may possess a N-acetylglucosamine residue known as the bisecting GlcNAc. The transfer of this residue is catalyzed by the enzyme UDP-N-acetylglucosamine:beta-D-mannoside beta 1,4-N-acetylglucosaminyltransferase III (GlcNAc-TIII; EC 2.4.1.144). To begin to investigate biological functions for carbohydrates with a bisected GlcNAc residue, we have cloned and partially characterized the mouse gene (Mgat3) encoding GlcNAc-TIII. A rat GlcNAc-TIII-encoding cDNA was used to isolate clones from a mouse strain 129 Sv liver genomic DNA library. An NsiI genomic DNA fragment containing an ORF with 96% identity to rat GlcNAc-TIII was subcloned into a mammalian expression vector and transfected into Chinese hamster ovary (CHO) cells. The transfectants expressed GlcNAc-TIII activity only when the ORF was in the sense orientation. Southern analysis showed that Mgat3 is present in a single copy in the mouse genome. Mapping by restriction-fragment length polymorphism analysis of backcross progeny located Mgat3 to mouse chromosome 15, at a position homologous with region 22q12.3-q13.1 in the human genome. Northern analyses of adult tissues showed that Mgat3 is expressed at high levels in kidney and brain, and at lower levels in many other tissues. |
