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