Performed stereochemical analysis of possible spatial arrangements for human involucrin having amino acid sequence with tandem repeats. Based on this analysis and summarized experimental data, a structural model of involucrin was formulated. The model suggests the sites and modes of interaction of involucrin with small proline-rich proteins of the skin. A paper on the structural model was published. Performed amino acid sequence analysis of bacterial proteins having arrays of tandem repeats. Based on this analysis and molecular modeling, a beta-helix model was suggested for the filamentous hemagglutinin adhesin of Bordetella pertussis and related bacterial secretory proteins. A manuscript is submitted for publication. Performed inspection of the known solenoid-like structures of proteins. These proteins were classified and the relationships between their sequences, structure and function has been reviewed. A paper is in press. Performed amino acid sequence analysis of signal peptides and regions adjacent to them in order to understand the mechanism of protein translocation across the cytoplasmic membrane. Established that the net charge of the first 18 residues of the mature sequence is essential for protein translocation of gram-negative bacteria. A paper was published. A short coiled-coil peptide with the potential to self-assemble into long fibrils have been designed, synthesized and analyzed. A manuscript is submitted. Performed amino acid sequence analysis and molecular modeling of several newly cloned of sea urchin proteins. Established that these proteins have sequence similarity to C1q complement factor, a protein with the known 3D structure. This suggests an oligomerization state, cellular locations and possible function of these proteins.

Agency
National Institute of Health (NIH)
Institute
Center for Information Technology (CIT)
Type
Intramural Research (Z01)
Project #
1Z01CT000259-05
Application #
6431905
Study Section
(CMM)
Project Start
Project End
Budget Start
Budget End
Support Year
5
Fiscal Year
2000
Total Cost
Indirect Cost
Name
Computer Research and Technology
Department
Type
DUNS #
City
State
Country
United States
Zip Code
Henry, L Keith; Field, Julie R; Adkins, Erika M et al. (2006) Tyr-95 and Ile-172 in transmembrane segments 1 and 3 of human serotonin transporters interact to establish high affinity recognition of antidepressants. J Biol Chem 281:2012-23
Kajava, Andrey V; Kobe, Bostjan (2002) Assessment of the ability to model proteins with leucine-rich repeats in light of the latest structural information. Protein Sci 11:1082-90
Kalinin, Andrey E; Kajava, Andrey V; Steinert, Peter M (2002) Epithelial barrier function: assembly and structural features of the cornified cell envelope. Bioessays 24:789-800
Terskikh, Alexey V; Fradkov, Arkady F; Zaraisky, Andrey G et al. (2002) Analysis of DsRed Mutants. Space around the fluorophore accelerates fluorescence development. J Biol Chem 277:7633-6
Kajava, A V; Cheng, N; Cleaver, R et al. (2001) Beta-helix model for the filamentous haemagglutinin adhesin of Bordetella pertussis and related bacterial secretory proteins. Mol Microbiol 42:279-92
Kobe, B; Kajava, A V (2001) The leucine-rich repeat as a protein recognition motif. Curr Opin Struct Biol 11:725-32
Kajava, A V (2001) Review: proteins with repeated sequence--structural prediction and modeling. J Struct Biol 134:132-44
Potekhin, S A; Melnik, T N; Popov, V et al. (2001) De novo design of fibrils made of short alpha-helical coiled coil peptides. Chem Biol 8:1025-32
Kajava, A V; Zolov, S N; Kalinin, A E et al. (2000) The net charge of the first 18 residues of the mature sequence affects protein translocation across the cytoplasmic membrane of gram-negative bacteria. J Bacteriol 182:2163-9
Simon-Nobbe, B; Probst, G; Kajava, A V et al. (2000) IgE-binding epitopes of enolases, a class of highly conserved fungal allergens. J Allergy Clin Immunol 106:887-95

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