PRKD1 and gonorrhea: Similarly, mutations may also be identified in other exons or codons of the PRKD1 gene; for example, we detected a mutation in exon 15 at codon 704 (c.2110C>T; p.His704Tyr; p.H704Y) of a cribriform PAC; to our knowledge, this mutation has not yet been reported in the literature.