Table 1 List of genes and enzymes in this study.

From: Harnessing Yarrowia lipolytica lipogenesis to create a platform for lipid and biofuel production

Genomic backgrounds

Name

Genotype (function of knockout)

 POlf

MatA, leucine, uracil, no extracellular proteases

pex10

POlf-Δpex10 (prevents peroxisome biogenesis)

mfe1

POlf-Δmfe1 (prevents β-oxidation)

pex10 mfe1

POlf-Δpex10 Δmfe1 (prevents peroxisome biogenesis and β-oxidation)

Enzymatic overexpressions

 Name

Function

 AMPD

Inhibits TCA cycle, increasing citric acid level

 ACLsubunit1

Cleaves citric acid to acetyl-CoA

 ACLsubunit2

Cleaves citric acid to acetyl-CoA

 MAE

Increases NADPH cofactor supply

 DGAisozyme1

Catalyses lipid synthesis step

 DGAisozyme2

Catalyses lipid synthesis step

Auxotrophic markers

 Name

Utilized for expression

 Leucine+/−

Episomally and chromosomally

 Uracil+/−

Chromosomally

  1. ACL, ATP-citrate lyase; AMPD, adenosine monophosphate deaminase; DGA, acyl-CoA:diacylglycerol acyltransferases; MAE, malic enzyme. ACL is a heterodimeric protein so only dual overexpressions of the ACLsubunit1 and ACLsubunit2 were constructed and tested.