Complex of human LKB1, also known as STK11, GenBank Accession No. NM_000455, a.a. 2-433, with N-terminal Histag, calculated MW=49 kDa (LKB1 runs anomalously on SDS-PAGE), MO25 GenBank Accession No. NM_016289, a.a. 2-341, with Nterminal GST-tag, calculated MW=66 kDa and STRAD, GenBank Accession No. NM_001003787, a.a. 2-431, with N-terminal GST-tag, calculated MW=74 kDa, individually expressed in Sf9 cells using a Baculovirus expression system.