Glycolate

Should include the following information: (not necessarily in the order given)
    What is the effect on the cell/organism if the molecule is not present?
    What is the effect on the organism if the enzyme is defective?
    What is the effect on the organism if the enzyme is present in low quantities? What is the effect if it is present in quantities that are higher than normal?
    Are there any diseases associated with this molecule?
    What is the current research on the molecule? 

Please use two scholarly or Journal and put references in CSE format and include in-text citations.