We studied 2 patients with recurrent pancreatitis and severe hypertriglyceridemia.
Patients exhibited low lipoprotein lipase activity but no rare variants in this gene.
We identified 2 novel missense mutations in the GPIHBP1 gene.
One patient was homozygous for the mutation c.239 C>A, ACG>AAG, p.Thr80>Lys.
The other patient was homozygous for the mutation c.3 G>T, ATG>ATT, p.Met1>Ile.