{"comment":{"url":"https://api.github.com/repos/OpenMS/OpenMS/comments/10099122","html_url":"https://github.com/OpenMS/OpenMS/commit/edc1820692b90d1d6a47b9855a131efb69a57de0#commitcomment-10099122","id":10099122,"user":{"login":"liangoaix","id":4321857,"avatar_url":"https://avatars.githubusercontent.com/u/4321857?v=3","gravatar_id":"","url":"https://api.github.com/users/liangoaix","html_url":"https://github.com/liangoaix","followers_url":"https://api.github.com/users/liangoaix/followers","following_url":"https://api.github.com/users/liangoaix/following{/other_user}","gists_url":"https://api.github.com/users/liangoaix/gists{/gist_id}","starred_url":"https://api.github.com/users/liangoaix/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/liangoaix/subscriptions","organizations_url":"https://api.github.com/users/liangoaix/orgs","repos_url":"https://api.github.com/users/liangoaix/repos","events_url":"https://api.github.com/users/liangoaix/events{/privacy}","received_events_url":"https://api.github.com/users/liangoaix/received_events","type":"User","site_admin":false},"position":null,"line":null,"path":"","commit_id":"edc1820692b90d1d6a47b9855a131efb69a57de0","created_at":"2015-03-09T13:11:28Z","updated_at":"2015-03-09T13:11:28Z","body":"Because I did find any Xtandem documentation supporting no enzyme usage, I just tried \"[]|[]\" \"|\" \"[]|[X]\" and it's running with 0 valid model. So I am still not sure the expression of no enzyme in XTandem. Usually we set default as \"\" empty string if it's missing, then this somehow is the same as unknown enzyme then."}}