Type 1 polyisoprenoid diphosphate phosphatase (PDP1) contributes to interconversion of isoprenols and isoprenylpyrophosphates, balancing the sterol and nonsterol branches of the mevalonate pathway by regulating ERAD of HMG CoA reductase and ER-to-Golgi transport of UBIAD1.

UBIAD1 mediates a unique geranylgeranyl pyrophosphate-sensing mechanism that when disrupted, inhibits degradation of HMG CoA reductase and triggers overproduction of corneal cholesterol that characterizes the eye disease Schnyder Corneal Dystrophy.

The inhibition of sterol-accelerated degradation of HMG CoA reductase by the vitamin K2 synthetic enzyme UBIAD1 may contribute to the accumulation of cholesterol that is associated with Schnyder corneal dystrophy.

Embryonic lethality associated with deficiency of UBIAD1, which synthesizes a vitamin K₂ subtype, results from aberrant ER-associated degradation of the cholesterol biosynthetic enzyme HMG CoA reductase.

Malaria parasites target a polyprenyl synthase enzyme to the apicoplast organelle and require its activity to produce long-chain linear isoprenoids necessary for apicoplast biogenesis.

A human three-helix Rab-binding domain can potentially bind to two Rab proteins simultaneously with different affinities at binding sites generated by gene duplication.

Pathogenic LRRK2kinase requires Rab10 and RILPL1 to block primary cilia formation, shortening cilia on cholinergic neurons needed for a hedgehog driven circuit that supports dopaminergic neurons in mouse brain.

A claims-based retrospective cohort study shows that patients who used bisphosphonates between 01/01/2019 and 02/29/2020 had dramatically reduced odds of SARS-CoV-2 testing, COVID-19 diagnosis, and COVID-19-related hospitalizations during the initial surge of the COVID-19 pandemic in the US.

Activating mutations in the leucine-rich repeat kinase 2 cause Parkinson’s disease, and an unbiased genome-wide screen revealed an unexpected, specific role for Rab12 in activating this kinase directly for Rab GTPase phosphorylation.