41. The S18Y polymorphism of UCH-L1 has been shown to be less-prone to dimerization . 42. Several useful structural isomers of the octenes are obtained by dimerization of isobutene and 1-butene. 43. CLOCK exhibits histone acetyl transferase ( HAT ) activity, which is enhanced by dimerization with BMAL1. 44. The rod domain is involved in dimerization and interaction with the RhoA activator, GEF-H1. 45. Biotin protein ligases have an additional C-terminal domain which participates in biotin adenylation and dimerization . 46. Current data indicates that this domain allows for dimerization between MLN64 and MENTHO molecules and with themselves. 47. Binding of a natriuretic peptide induces a conformational change in the receptor that causes receptor dimerization and activation. 48. It is a petrochemical, produced by the catalytic cracking of crude oil or the dimerization of ethylene. 49. Glutathione reductase from human erythrocytes is a FAD-binding domain ( s ) and a dimerization domain. 50. Other amino acid changes were seen to alter the dimerization of the protein, leading to improper folding.