Download MendeleyThree-dimensional structure of recombinant human granulocyte-macrophage colony-stimulating factor.
Walter, M.R., Cook, W.J., Ealick, S.E., Nagabhushan, T.L., Trotta, P.P., Bugg, C.E.(1992) J Mol Biol 224: 1075-1085
- PubMed: 1569568
- DOI: https://doi.org/10.1016/0022-2836(92)90470-5
- Primary Citation of Related Structures:
1CSG - PubMed Abstract:
The crystal structure of recombinant human granulocyte-macrophage colony-stimulating factor (rhGM-CSF) has been determined at 2.8 A resolution using multiple isomorphous replacement techniques. There are two molecules in the crystallographic asymmetric unit, which are related by an approximate non-crystallographic 2-fold axis. The overall structure is highly compact and globular with a predominantly hydrophobic core. The main structural feature of rhGM-CSF is a four alpha-helix bundle, which represents approximately 42% of the structure. The helices are arranged in a left-handed antiparallel bundle with two overhand connections. Within the connections is a two-stranded antiparallel beta-sheet. The tertiary structure of rhGM-CSF has a topology similar to that of porcine growth factor and interferon-beta. Most of the proposed critical regions for receptor binding are located on a continuous surface at one end of the molecule that includes the C terminus.
Organizational Affiliation:
Department of Pathology, University of Alabama, Birmingham 35294.
