2.3.1.135	C161S	hypomorphic mutant	758452	
2.3.1.135	D128N	site-directed mutagenesis, construction of an N-glycosylation site for enzyme membrane localization and orientation studies, overview	674832	
2.3.1.135	E14L	naturally occuring substitution localized in an N-terminal alpha-helix. The mutant protein is instable and shows accelerated proteosomal degradation. The instability of E14L does not abrogate the production of the visual chromophore in a cell-based assay. Eexpression of E14L leads to a rapid increase in cellular levels of retinoic acid upon retinoid supplementation	756046	
2.3.1.135	I42N	site-directed mutagenesis, construction of an N-glycosylation site for enzyme membrane localization and orientation studies, overview	674832	
2.3.1.135	K104A	site-directed mutagenesis, reduced activity compared to the truncated wild-type enzyme	658075	
2.3.1.135	K133A	site-directed mutagenesis, increased activity compared to the truncated wild-type enzyme	658075	
2.3.1.135	K133A/K134A	site-directed mutagenesis, slightly increased activity compared to the truncated wild-type enzyme	658075	
2.3.1.135	K134A	site-directed mutagenesis, increased activity compared to the truncated wild-type enzyme	658075	
2.3.1.135	K147A	site-directed mutagenesis, reduced activity compared to the truncated wild-type enzyme	658075	
2.3.1.135	K180A	site-directed mutagenesis, nearly inactive mutant	658075