Looks like HEPES to me (or some other sulphonic acid buffer). The flexibility in the ring could be why there's a gap?
Best wishes Matthew. ________________________________ From: CCP4 bulletin board <[email protected]> on behalf of John Smith <[email protected]> Sent: 18 June 2025 13:52 To: [email protected] <[email protected]> Subject: [ccp4bb] Unknown Density Dear all, we find this interesting density in our map. Any guesses? Thanks for your help. Best John To unsubscribe from the CCP4BB list, click the following link: https: //www. jiscmail. ac. uk/cgi-bin/WA-JISC. exe?SUBED1=CCP4BB&A=1 [jiscmail. ac. uk] Dear all, we find this interesting density in our map. Any guesses? Thanks for your help. Best John ________________________________ To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 [jiscmail.ac.uk]<https://urldefense.com/v3/__https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1__;!!PDiH4ENfjr2_Jw!F-6FcGEJP1TvNrZllOLHMWJlWoCZ8l7nirDKKc55XI4gYYt_0jwJx93B_meqKwyMHPG8T5o3JSznyUM_ZrtqKojZc0QZ3INXPdt3juA-mh8$> ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 This message was issued to members of www.jiscmail.ac.uk/CCP4BB, a mailing list hosted by www.jiscmail.ac.uk, terms & conditions are available at https://www.jiscmail.ac.uk/policyandsecurity/
