HNRNPA1 and acute respiratory distress syndrome: Another 9-gene set member is HNRNPA1 which encodes heterogeneous nuclear ribonucleoprotein A, a recognized regulator of alternative splicing processes including alternate splicing of MYLK19, a well-described ARDS candidate gene20 and via its encoded protein, non-muscle myosin light chain kinase isoform (nmMLCK), a key regulator of lung vascular integrity21.