Soil Microbe Dechloromonas aromatica Str. RCB Metabolic Analysis - Recent Advances in Microbiology - page 126

Table 1. (Continued)

Proteins involved in the
anaerobic aromatic pathways
in Aromatoleum aromaticum
str. EbN I

A. aromaticum EbN I - repre-
sentative protein used for HMM
models

Azoarcus
BH72
ortholog

D. aromatica RCB
ortholog

VIMSS815384:pchA (COG I
0 12)

- -

5) phenol
PpsABC VIMSS816923:ppsA phenylphos-

phate synthase

- -

PpeABCD VIMSS815367:ppcA - -

6) 4-hydroxybenzoate
PcaK VIMSS816471 :peaK (COG2271) - -

HbcL VIMSS816681 :hbeLI 4-

hydroxybenzoate CoA ligase

-

HcrCBA VIMSS815644:hcrB - -

VIMSS815645:hcrA - -

7) toluene
BssDCABEFGH VIMSS814633:bssA - -

BbsABCDEFGH(IJ) VIMSS814644:bbsH - -

VIMSS814645:bbsG - -

VIMSS814647:bbsF - -

VIMSS814649:bbsD - -

VIMSS814651 :bbsB - -

8) ethylbenzene
EbdABC VIMSS814907:cbdA - + (PerA)

Ped VIMSS814906:ebdB - + (PerB)

VIMSS814905:ebdC - +(PerC)

VIMSS814904:ebdD - + (PerD)

VIMSS814903:ped - -

9) benzoate
BenK

VIMSS816652:benK - -

BelA VIMSS8151 52: belA + -

BerCBAD VIMSS813961 :bcrB - -

Deh Had Oah VIMSS813959:berA - -

For all pathways except the ubiquitous phenylacetic acid catabolic cluster, which
is involved in the aerobic degradation of phenylalanine, and the PpcAB phenylphos-
phate carboxylase enzymes involved in phenol degradation via 4-hydroxybenzoate, all
key anaerobic aromatic degradation proteins present in A. aromaticum EbN1 are miss-
ing from the D. aromatica genome (Table 1), and the majority are also not present in
Azoarcus BH72. The lack of overlap for genes encoding anaerobic aromatic enzymes
between these two species was completely unexpected, as both A. aromaticum EbN1
and D. aromatica are metabolically diverse degraders of aromatic compounds. In