2D clinostat	2 dimensional clinostat
3D clinostat	3 dimensional clinostat
3T3 cell line	a fibroblast cell line that was isolated from a mouse NIH/Swiss embryo
CDK	Cyclin-dependent kinases
ECL kit	Excellent Chemiluminescent Substrate Detection Kit
F-actin	Filamentous actin
FSC	Forward scatter
GAPDH	Glyceraldehyde-3-phosphate dehydrogenase
HRP	Horseradish peroxidase
O.D.	Optical density
LDS	Lithium dodecyl sulfate
PBS	Phosphate buffer saline
SDS-PAGE	Sodium dodecyl sulfate polyacrylamide gel electrophoresis
SMG	Simulated microgravity
TBST	Tris-buffered saline, 0.1% Tween 20