Prospective articles:

Beta-galactosidase

[1] [2] [3] [4] [5]

Serine at physiological pH
Valine at physiological pH
  1. ^ Nielsen, D A; et al. (1983). "Expression of a preproinsulin-beta-galactosidase gene fusion in mammalian cells". PNAS. 80 (17): 5198-5202. {{cite journal}}: |access-date= requires |url= (help); Explicit use of et al. in: |last2= (help)
  2. ^ Ishikawa, K; et al. (2015). "Crystal structure of β-galactosidase from Bacillus circulans ATCC 31382 (BgaD) and the construction of the thermophilic mutants". The FEBS Journal. 282 (13): 2540-2552. PMID 25879162. {{cite journal}}: |access-date= requires |url= (help); Explicit use of et al. in: |last2= (help)
  3. ^ Bonnerot, C; et al. (1987). "A beta-galactosidase hybrid protein targeted to nuclei as a marker for developmental studies". PNAS. 84 (19): 6795-6799. {{cite journal}}: Explicit use of et al. in: |last2= (help)
  4. ^ Burn, S F (2012). "Detection of β-galactosidase activity: X-gal staining". Methods Mol Biol. 886 (241): 50. PMID 22639266. {{cite journal}}: |access-date= requires |url= (help)
  5. ^ Casadaban, M J; et al. (August 1980). "In vitro gene fusions that join an enzymatically active beta-galactosidase segment to amino-terminal fragments of exogenous proteins: Escherichia coli plasmid vectors for the detection and cloning of translational initiation signals". J Bacteriol. 143 (2): 971-980. {{cite journal}}: |access-date= requires |url= (help); Explicit use of et al. in: |last2= (help)