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Table 1 Summary of PAO1 and Ps1448a pyoverdine gene alignment results

From: Characterization of pyoverdine and achromobactin in Pseudomonas syringae pv. phaseolicola 1448a

  PAO1 gene Function in P. aeruginosaPAO1 Ps1448a ortholog(s)
1 pvdY Regulatory protein 1515
2 pvdX Regulatory protein 3568
3 pvdS ECF iron sigma factor 1909
4 pvdG Thioesterase (34% identity with GrsT thioesterase from Bacillus brevis) 1910
5 pvdL Chromophore peptide synthetase 1911
6 pvdH Aminotransferase 1912
7 Pa2412 MbtH-like protein (no known function) 1913
8 Pa2411 Thioesterase (36% identity with thioesterase GrsT
from Bacillus brevis)
1910
9 Pa2403-2410 No known function, however expression of these genes is co-regulated with pyoverdine synthesis genes. 2408 and 2409 are predicted to encode an ABC transporter 1914-1921
* Not present (Likely pyoverdine aspartate hydroxylase of Ps1448a) 1922
10 pvdDIJ Pyoverdine side chain NRPS 1923-1926
11 fpvA Ferripyoverdine receptor protein 1870, 1927, 1928
12 pvdE ABC transporter (secretion) 1929
13 pvdF N5-hydroxyornithine transformylase Not present
14 pvdO No known function 1930
15 pvdN 26% identity with isopenicillin N epimerase from Streptomyces clavuligerus 1931
16 pvdM Dipeptidase (23% identity with porcine dipeptidase) 1932
17 pvdP No known function 1933
18 Pa2391 Porin (over 30% identity with outer membrane factor (OMF) proteins of RND/MFP/OMF-type efflux systems) 1934
19 Pa2390 ABC transporter (over 40% identity with resistance-nodulation-division (RND)-type transporter components of RND/MFP/OMF-type efflux systems) 1935/ macB
20 Pa2389 Periplasmic protein (over 30% identity with periplasmic membrane fusion proteins (MFP) of RND/MFP/OMF-type efflux systems) 1936
21 fpvR Antisigma factor for PvdS and FpvI 2117, 4764
22 fpvI ECF sigma factor required for expression of fpvA 4765, 1175, 1093, 2747, 1909
23 pvdA L-ornithine hydroxylase 2415, 3753
24 pvdQ Acylase (38% identity with Aculeacin A acylase from
Actinoplanes utahensis)
1937
  1. †Gene numbers for Ps1448a are as annotated in the Pseudomonas genome database. Genes were presumed to be orthologs if they belonged to the same COG group. Hits are listed in order of significance, with those falling within the Ps1448a pyoverdine locus (as pictured in figure 1) listed in bold.