2.4.1.90 alpha-lactalbumin alters the substrate specificity of EC 2.4.1.38 to EC 2.4.1.90, and leads to complex formation with the enzyme as lactose synthase, EC 2.4.1.22 675468 2.4.1.90 alpha-lactalbumin enzyme binds to the effector 659700 2.4.1.90 alpha-lactalbumin stimulates transfer of galactose from UDPgalactose to N-acetylgalactosamine 489493, 489496, 489519, 489521, 489525, 489526, 489529, 489530, 489535, 489538, 489546, 489553, 489554 2.4.1.90 alpha-lactalbumin stimulates transfer of glucose from UDPglucose to N-acetylglucosamine 489538 2.4.1.90 bovine serum albumin in the presence of 12.5 mg/ml bovine serum albumin, turnover rates increase approximately 2fold and Km values increase by approximately 4fold, for both N-acetyl-D-glucosamine and 1-(2-naphthyl) 2-acetamido-2-deoxy-beta-D-glucopyranoside 756352 2.4.1.90 dimyristoylphosphatidylcholine activation 489511, 489513 2.4.1.90 dioleoylphosphatidylcholine activation 489513 2.4.1.90 dipalmitoylphosphatidylcholine activation 489513 2.4.1.90 Distearoylphosphatidylcholine activation 489513 2.4.1.90 histone activation 489511 2.4.1.90 lysophosphatidylcholine activation 489511 2.4.1.90 Methylphosphatidylic acid activation 489511 2.4.1.90 additional information the enzyme regulation/stimulation is a complex system involving the hormones insulin, prolactine, hydrocortisone, triiodothyronine, and 17beta-estradiol, andalso the extracellular matrix and the sucking stimulus 672411 2.4.1.90 phosphatidylcholine activation 489511, 489513 2.4.1.90 phosphatidylethanolamine activation 489511 2.4.1.90 phosphatidylglycerol activation 489511 2.4.1.90 poly(L-Arg) activation 489520 2.4.1.90 poly(L-Lys) activation 489520 2.4.1.90 Protamine sulfate activation 489520 2.4.1.90 Triton X-100 0.1-5%, 1.5fold stimulation 489555 2.4.1.90 Triton X-100 required for maximal activity at 0.75% w/v 660309