a 2006

Proteomic characterization of the polyvalent staphylophage 812

DOŠKAŘ, Jiří, Luděk EYER, Roman PANTŮČEK, Vladislava RŮŽIČKOVÁ, Hana KONEČNÁ et. al.

Basic information

Original name

Proteomic characterization of the polyvalent staphylophage 812

Name in Czech

Proteomic characterization of the polyvalent staphylophage 812

Authors

DOŠKAŘ, Jiří (203 Czech Republic, guarantor), Luděk EYER (203 Czech Republic), Roman PANTŮČEK (203 Czech Republic), Vladislava RŮŽIČKOVÁ (203 Czech Republic), Hana KONEČNÁ (203 Czech Republic), Zbyněk ZDRÁHAL (203 Czech Republic), Lenka HERNYCHOVÁ (203 Czech Republic) and Jan PREISLER (203 Czech Republic)

Edition

12th International Symposium on Staphylococci & Staphylococcal Infections, 2006

Other information

Language

English

Type of outcome

Konferenční abstrakt

Field of Study

Genetics and molecular biology

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

RIV identification code

RIV/00216224:14310/06:00015836

Organization unit

Faculty of Science

Keywords in English

Staphylococcus aureus; medical microbiology; molecular diagnostics; phage therapy; proteomics

Tags

International impact, Reviewed
Změněno: 8/4/2010 10:15, prof. Mgr. Jan Preisler, Ph.D.

Abstract

V originále

Bacteriophage 812 is a polyvalent phage with very broad host range in the genus Staphylococcus, which makes it a suitable candidate for phage therapy of staphylococcal infections. The genomes of polyvalent staphylococcal phages exceed 125 kbp and include about 200 putative open reading frames. Our study was focused on characterization of the phage proteome, especially on identification of phage virion proteins. Combination of both one- and two-dimensional electrophoreses (1-DE and 2-DE) followed by peptide mass fingerprinting using MALDI-TOF mass spectrometry, led to the identification of 24 virion proteins of the phage 812. Twenty of them were not identified by proteome analysis of closely related staphylococcal phages K and G1 yet. Although the phage proteome is much simpler compared to that of cellular organisms, using 2-DE in addition to 1-DE significantly increased the number of identified proteins. Fifteen proteins were assigned unambiguously to the head-tail genome module; the remaining nine proteins are encoded by genes of the left or right arms of the phage genome. As expected, the most abundant proteins in the electrophoretic patterns are the major capsid protein, the major tail sheath protein and proteins identical to ORF 50 and ORF 95 of the phage K, although their function is only putative. Twenty new identified proteins set the basis for a detailed analysis of the phage virion structure and are a prerequisite for their efficient and safe application in phage therapy.

In Czech

neuvedeno

Links

GA203/03/0515, research and development project
Name: Integrovaná analýza genomu a proteomu terapeuticky významných bakteriofágů kombinací elektroforézy a hmotnostní spektrometrie
Investor: Czech Science Foundation, Integrated genome and proteome analysis of therapeutically important bacteriophages by combination of electrophoresis and mass spectrometry
MSM0021622415, plan (intention)
Name: Molekulární podstata buněčných a tkáňových regulací
Investor: Ministry of Education, Youth and Sports of the CR, Molecular basis of cell and tissue regulations