Abstract

We propose to determine the structure of a complex between the E. coli chaperonin GroEL (Cpn60) and the gp 5 capsid protein of bacteriophage HK97. Suitable crystals have been obtained, they can be flash frozen at -160oC and preliminary data have been collected at CHESS to 3.6 ? resolution. Chaperonins, including members of the Cpn60 family are a ubiuitous class of proteins that assist in protein folding in vivo by binding to partially folded proteins; this prevents aggregation and may unfold off pathway intermediates and direct them back into the correct folding pathway. The gp 5 protein is a natural substrate of GroEL; it is the major capsid protein in the ocosahedral head of the lambdoid bacteriophage HK97. The unit cell parameters are: a = 138.0,b = 270.9, c = 155.4 ?, b = 101.4o. The Space Group is P2. The asymmetric unit contains one 14mer of GroEL and one subunit of the HK97 gp5 protein, i.e. it is the smallest asymmetric unti that could contain a complete complex of this type.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR001646-19
Application #
6491153
Study Section
Project Start
2001-08-15
Project End
2002-08-14
Budget Start
Budget End
Support Year
19
Fiscal Year
2001
Total Cost
$142,703
Indirect Cost

  Institution

Name
Cornell University
Department
Type
DUNS #
City
Ithaca
State
NY
Country
United States
Zip Code
14850

  Publications

Kozlov, Guennadi; Wong, Kathy; Gehring, Kalle (2018) Crystal structure of the Legionella effector Lem22. Proteins 86:263-267
Ménade, Marie; Kozlov, Guennadi; Trempe, Jean-François et al. (2018) Structures of ubiquitin-like (Ubl) and Hsp90-like domains of sacsin provide insight into pathological mutations. J Biol Chem 293:12832-12842
Xu, Jie; Kozlov, Guennadi; McPherson, Peter S et al. (2018) A PH-like domain of the Rab12 guanine nucleotide exchange factor DENND3 binds actin and is required for autophagy. J Biol Chem 293:4566-4574
Dean, Dexter N; Rana, Pratip; Campbell, Ryan P et al. (2018) Propagation of an A? Dodecamer Strain Involves a Three-Step Mechanism and a Key Intermediate. Biophys J 114:539-549
Chen, Yu Seby; Kozlov, Guennadi; Fakih, Rayan et al. (2018) The cyclic nucleotide-binding homology domain of the integral membrane protein CNNM mediates dimerization and is required for Mg2+ efflux activity. J Biol Chem 293:19998-20007
Xu, Caishuang; Kozlov, Guennadi; Wong, Kathy et al. (2016) Crystal Structure of the Salmonella Typhimurium Effector GtgE. PLoS One 11:e0166643
Cogliati, Massimo; Zani, Alberto; Rickerts, Volker et al. (2016) Multilocus sequence typing analysis reveals that Cryptococcus neoformans var. neoformans is a recombinant population. Fungal Genet Biol 87:22-9
Oot, Rebecca A; Kane, Patricia M; Berry, Edward A et al. (2016) Crystal structure of yeast V1-ATPase in the autoinhibited state. EMBO J 35:1694-706
Lucido, Michael J; Orlando, Benjamin J; Vecchio, Alex J et al. (2016) Crystal Structure of Aspirin-Acetylated Human Cyclooxygenase-2: Insight into the Formation of Products with Reversed Stereochemistry. Biochemistry 55:1226-38
Bauman, Joseph D; Harrison, Jerry Joe E K; Arnold, Eddy (2016) Rapid experimental SAD phasing and hot-spot identification with halogenated fragments. IUCrJ 3:51-60

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