Insulin hexamers: new conformations and applications
- PMID: 1949156
- DOI: 10.1016/0968-0004(91)90140-q
Insulin hexamers: new conformations and applications
Abstract
Recent studies on the structural and chemical properties of insulin have shown that the insulin hexamer is an allosteric protein capable of adopting three distinct conformations, designated T6, T3R3 and R6. Although the physiological consequences of this allostery are not established, new applications for the insulin hexamer as a model system for the study of allostery and for the study of zinc enzymes and copper proteins are emerging.
Similar articles
-
Structural asymmetry and half-site reactivity in the T to R allosteric transition of the insulin hexamer.Biochemistry. 1994 Nov 8;33(44):13057-69. doi: 10.1021/bi00248a015. Biochemistry. 1994. PMID: 7947711
-
Mechanisms of stabilization of the insulin hexamer through allosteric ligand interactions.Biochemistry. 1997 May 13;36(19):5837-45. doi: 10.1021/bi963038q. Biochemistry. 1997. PMID: 9153424
-
Kinetic measurements of T----R structural transitions in insulin.Biol Chem Hoppe Seyler. 1991 Dec;372(12):1035-8. doi: 10.1515/bchm3.1991.372.2.1035. Biol Chem Hoppe Seyler. 1991. PMID: 1789928
-
Ligand binding and thermostability of different allosteric states of the insulin zinc-hexamer.Biochemistry. 2006 Mar 28;45(12):4014-24. doi: 10.1021/bi0524520. Biochemistry. 2006. PMID: 16548529
-
Zinc-ligand interactions modulate assembly and stability of the insulin hexamer -- a review.Biometals. 2005 Aug;18(4):295-303. doi: 10.1007/s10534-005-3685-y. Biometals. 2005. PMID: 16158220 Review.
Cited by
-
Structural Lessons From the Mutant Proinsulin Syndrome.Front Endocrinol (Lausanne). 2021 Sep 30;12:754693. doi: 10.3389/fendo.2021.754693. eCollection 2021. Front Endocrinol (Lausanne). 2021. PMID: 34659132 Free PMC article. Review.
-
Deciphering the hidden informational content of protein sequences: foldability of proinsulin hinges on a flexible arm that is dispensable in the mature hormone.J Biol Chem. 2010 Oct 1;285(40):30989-1001. doi: 10.1074/jbc.M110.152645. Epub 2010 Jul 27. J Biol Chem. 2010. PMID: 20663888 Free PMC article.
-
Crystallographic characterization of two novel crystal forms of human insulin induced by chaotropic agents and a shift in pH.BMC Struct Biol. 2007 Dec 19;7:83. doi: 10.1186/1472-6807-7-83. BMC Struct Biol. 2007. PMID: 18093308 Free PMC article.
-
The structure of a mutant insulin uncouples receptor binding from protein allostery. An electrostatic block to the TR transition.J Biol Chem. 2008 Jul 25;283(30):21198-210. doi: 10.1074/jbc.M800235200. Epub 2008 May 20. J Biol Chem. 2008. PMID: 18492668 Free PMC article.
-
Decoding the cryptic active conformation of a protein by synthetic photoscanning: insulin inserts a detachable arm between receptor domains.J Biol Chem. 2009 May 22;284(21):14597-608. doi: 10.1074/jbc.M900087200. Epub 2009 Mar 25. J Biol Chem. 2009. PMID: 19321435 Free PMC article.
Publication types
MeSH terms
Substances
LinkOut - more resources
Other Literature Sources
Medical