Research Article

Role of Burkholderia pseudomallei Sigma N2 in Amino Acids Utilization and in Regulation of Catalase E Expression at the Transcriptional Level

Table 3

Comparative partial proteomic analysis of rpoN2 mutant compared to wild type of B. pseudomallei. The spot numbers assigned in this study are identical to the number of spots in B. pseudomallei 2DE reference map [18].

Protein orthologuesExpression alteration ratio in B. pseudomallei strainspIMWSpot number
Wild typerpoN2 mutant

(1) Cell envelope biogenesis and outer membrane
 Acetyltransferase (GNAT) family protein1↑ 8.304.950.179
 UDP-N-acetylmuramyl pentapeptide synthase1↑ 5.025.741.552
(2) Energy metabolism
 Polyphosphate kinase 2 family (Ppk2)1↑ 3.174.8944.2640
 ATB synthase subunit B1↑ 3.404.9753.9315
 NADH-dehydrogenase delta subunit10.17 ↓5.3436.5926
 Aldehyde dehydrogenase (NAD) family protein10.19 ↓6.0255.3924
(3) Carbohydrate metabolism
 Glyceraldehyde 3-phosphate dehydrogenase (GapA)1↑ 3.384.8220.8848
 Nucleoside-diphosphate-sugar epimerases1↑ 12.585.2127.7856
(4) Lipid metabolism
 4-Hydroxyl-3-methylbut-2-enyl diphosphate reductase (lspH)1↑ 5.075.9440.8171
 Nonribosomally encoded peptide/polyketide synthase (CmaB)10.21 ↓6.1937.1973
(5) Amino acid metabolism
 Phosphoribosyl formimino-5-aminoimidazole carboxamide ribotide isomerase (HisA)10.20 ↓4.423183
 Cysteine synthase (CysM)10.33 ↓5.7536.1180
(6) Nucleotide metabolism
 Orotidine 5′-phosphate decarboxylase1↑ 6.424.9932.7988
(7) Translation
 50S ribosomal protein L31↑ 3.494.1427.8150
(8) Transcription
 Transcriptional regulator, ArsR family 110.20 ↓4.9237.92124
(9) Posttranslational modification
 Thioredoxin1↑ 3.375.9716.15179
 Peptidyl-prolyl cis-trans isomerase B1↑ 22.156.0519.99174
 Glutathione S-transferase1↑ 3.056.522176
(10) Cell motility, intracellular trafficking, and secretion
 Type III effector protein BipD1↑ 5.044.3834.37194
 Type III secretion chaperone LcrH/SycD1↑ 6.234.9218.52190
(11) Stress responses
 Carbohydrate porin, OprB family1↑ 3.165.0138.71233
(12) Hypothetical protein
 Hypothetical protein BPSL03491↑ 3.155.2816.53253
 Hypothetical protein BPSS093110.03 ↓4.6423.63274