genetic mapping neurosin Klk6 http://identifiers.org/mgd/MGI:1343166 Prss18 O Gene Prss9 Klk29 protease M + Prss9|neurosin|protease M|Klk29|Bssp|Prss18 Bssp kallikrein related-peptidase 6 protein coding gene MGI:1343166