2.4.1.149 Golgi apparatus B3GNT1 and B4GALT1 colocalize and interact with each other in the trans-Golgi 5794 703900 2.4.1.149 Golgi apparatus stem region and large catalytic domain reside presumably in the Golgi lumen 5794 638582 2.4.1.149 membrane - 16020 638606 2.4.1.149 membrane membrane-bound 16020 638576 2.4.1.149 membrane type II membrane protein topology, longest transmembrane domain among glycosyltransferases cloned so far 16020 638582 2.4.1.149 soluble - - 638575, 638579