PMID: 12657786

Authors:

Diao J

Title:

Crystallographic titration of cubic insulin crystals: pH affects GluB13 switching and sulfate binding.

Journal:

Acta Crystallogr D Biol Crystallogr. 2003 Apr;59(Pt 4):670-6. Epub 2003, Mar 25.

Abstract:

Structures of porcine insulin crystals soaked in 1 M sodium sulfate at pH 5.00, 5.53, 5.80, 6.00, 6.16, 6.26, 6.35, 6.50, 6.98 and 9.00 have been determined at between 1.7 and 1.9 A resolution. GluB13 exhibits a single conformation at pH