Proteome Analysis of Alkylhydroxide Peroxidase-Deficient Isogenic Mutant of Helicobacter pylori 26695
10.4167/jbv.2019.49.4.191
- Author:
Woo Kon LEE
1
;
Seung Chul BAIK
;
Min Kyung SHIN
;
Myunghwan JUNG
;
Jin Sik PARK
;
Jong Hoon HA
;
Dong Hae LEE
;
Min Jeong KIM
;
Jeong ih SHIN
;
Hyung Lyun KANG
Author Information
1. Department of Microbiology, Gyeongsang National University School of Medicine, 816-15 Jinjudaero, Jinju, Gyeongnam, 52727 KOREA. kangssi@gnu.kr
- Publication Type:Original Article
- Keywords:
Helicobacter pylori;
antioxidant;
ahpC
- MeSH:
Antioxidants;
Helicobacter pylori;
Helicobacter;
Microarray Analysis;
Oxygen;
Peroxidase;
Protein Kinase C;
Proteome;
Ribes
- From:Journal of Bacteriology and Virology
2019;49(4):191-202
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
In order to investigate the antioxidant effect of alkylhydroxide peroxidase (ahpC) of Helicobacter pylori (H. pylori) 26695, an ahpC-deficient mutant (H. pylori 26695 ahpC::cat) was generated. ahpC-deficient mutant was grown slowly at lower pressure of oxygen (5% oxygen) compared to the H. pylori 26695. Whole cell proteins isolated form H. pylori 26695 and H. pylori 26695 ahpC::cat were analyzed by MALDI-TOF and tandem-MS. The expression of 15 proteins, including Ppa, HypB, GrpE, Elp, RecA, GroES, Mda66, RibE, NapA, GlnA, BioB, TrxB, Tsf, FumC and Icd, was more than doubled in H. pylori 26695 ahpC::cat. Production of 10 proteins such as UreG, FabE, Adk, Pnp, OorC, AtpA, AtpD, Nqq3, Pfr, and TagD decreased below 50% in H. pylori 26695 ahpC::cat compared to the H. pylori 26695. In microarray analysis, 9 genes including sul1, amiE, frxA, fecA, hyuA, and katA increased in transcription level in H. pylori 26695 ahpC::cat compared to H. pylori 26695. A total of 24 genes, including flaB, protein kinase C inhibitor, cag16, pabC, and sabA, reduced in transcription. 27 genes, including HP0889, showed common expression changes in ahpC, katA, and sodB-deficient mutations. As a result of this study, there were not many genes whose expression was commonly changed by the deletion of each of the three major antioxidant enzymes of H. pylori. These results showed the functions and regulation of the three antioxidant enzymes were different in H. pylori.
