KnowraJohn Howard NorthropLinked fromLinked fromThe 2 pages that link to John Howard Northrop, each with the reason it gives.All 2Related 2Wendell Meredith StanleyRelated: Northrop shared Stanley’s Nobel Prize for work on crystallized enzymes and viruses.James B. SumnerRelated: His independent enzyme crystallizations reinforced Sumner’s claim that enzymes are proteins.