GapMind for catabolism of small carbon sources

 

4-hydroxybenzoate catabolism in Thermophagus xiamenensis HS1

Best path

pcaK, pobA, praA, xylF, mhpD, mhpE, adh, ackA, pta

Rules

Overview: 4-hydroxybenzoate catabolism in GapMind is based on aerobic oxidation to 3,4-hydroxybenzoate (protocatechuate), followed by meta, ortho, or para cleavage; or reduction to benzoyl-CoA (part of a MetaCyc pathway for phenol degradation, link)

72 steps (17 with candidates)

Or see definitions of steps

Step Description Best candidate 2nd candidate
pcaK 4-hydroxybenzoate transporter pcaK
pobA 4-hydroxybenzoate 3-monooxygenase
praA protocatechuate 2,3-dioxygenase
xylF 2-hydroxymuconate semialdehyde hydrolase
mhpD 2-hydroxypentadienoate hydratase
mhpE 4-hydroxy-2-oxovalerate aldolase
adh acetaldehyde dehydrogenase (not acylating)
ackA acetate kinase GQW_RS0107575 GQW_RS0107565
pta phosphate acetyltransferase GQW_RS0107590 GQW_RS0107570
Alternative steps:
acs acetyl-CoA synthetase, AMP-forming GQW_RS0106210
ald-dh-CoA acetaldehyde dehydrogenase, acylating
atoB acetyl-CoA C-acetyltransferase
badH 2-hydroxy-cyclohexanecarboxyl-CoA dehydrogenase GQW_RS0114440 GQW_RS0111595
badI 2-ketocyclohexanecarboxyl-CoA hydrolase GQW_RS0104270
badK cyclohex-1-ene-1-carboxyl-CoA hydratase GQW_RS0104270 GQW_RS0111120
bamB class II benzoyl-CoA reductase, BamB subunit
bamC class II benzoyl-CoA reductase, BamC subunit
bamD class II benzoyl-CoA reductase, BamD subunit
bamE class II benzoyl-CoA reductase, BamE subunit
bamF class II benzoyl-CoA reductase, BamF subunit
bamG class II benzoyl-CoA reductase, BamG subunit GQW_RS0110375
bamH class II benzoyl-CoA reductase, BamH subunit GQW_RS0110365
bamI class II benzoyl-CoA reductase, BamI subunit GQW_RS0110370
bcrA ATP-dependent benzoyl-CoA reductase, alpha subunit
bcrB ATP-dependent benzoyl-CoA reductase, beta subunit
bcrC ATP-dependent benzoyl-CoA reductase, gamma subunit
bcrD ATP-dependent benzoyl-CoA reductase, delta subunit
boxA benzoyl-CoA epoxidase, subunit A
boxB benzoyl-CoA epoxidase, subunit B
boxC 2,3-epoxybenzoyl-CoA dihydrolase
boxD 3,4-dehydroadipyl-CoA semialdehyde dehydrogenase
catI 3-oxoadipate CoA-transferase subunit A (CatI)
catJ 3-oxoadipate CoA-transferase subunit B (CatJ)
Ch1CoA cyclohex-1-ene-1-carbonyl-CoA dehydrogenase GQW_RS0111130 GQW_RS0108020
dch cyclohexa-1,5-diene-1-carboxyl-CoA hydratase GQW_RS0104270
ech (S)-3-hydroxybutanoyl-CoA hydro-lyase GQW_RS0104270
fadB (S)-3-hydroxybutanoyl-CoA dehydrogenase GQW_RS0107585 GQW_RS0114440
fcbT1 tripartite 4-hydroxybenzoate transporter, substrate-binding component FcbT1
fcbT2 tripartite 4-hydroxybenzoate transporter, small DctQ-like component FcbT2
fcbT3 tripartite 4-hydroxybenzoate transporter, large permease subunit FcbT3
gcdH glutaryl-CoA dehydrogenase GQW_RS0111130 GQW_RS0108020
had 6-hydroxycyclohex-1-ene-1-carbonyl-CoA dehydrogenase
hcl 4-hydroxybenzoyl-CoA ligase
hcrA 4-hydroxybenzoyl-CoA reductase, alpha subunit
hcrB 4-hydroxybenzoyl-CoA reductase, beta subunit
hcrC 4-hydroxybenzoyl-CoA reductase, gamma subunit
ligA protocatechuate 4,5-dioxygenase, alpha subunit
ligB protocatechuate 4,5-dioxygenase, beta subunit
ligC 2-hydroxy-4-carboxymuconate-6-semialdehyde dehydrogenase
ligI 2-pyrone-4,6-dicarboxylate hydrolase
ligJ 4-carboxy-2-hydroxymuconate hydratase
ligK 4-oxalocitramalate aldolase
ligU 4-oxalomesaconate tautomerase
oah 6-oxocyclohex-1-ene-1-carbonyl-CoA hydratase GQW_RS0104270
paaF 2,3-dehydroadipyl-CoA hydratase GQW_RS0104270
paaH 3-hydroxyadipyl-CoA dehydrogenase GQW_RS0107585 GQW_RS0114440
paaJ2 3-oxoadipyl-CoA thiolase
pcaB 3-carboxymuconate cycloisomerase
pcaC 4-carboxymuconolactone decarboxylase
pcaD 3-oxoadipate enol-lactone hydrolase
pcaF succinyl-CoA:acetyl-CoA C-succinyltransferase
pcaG protocatechuate 3,4-dioxygenase, beta subunit
pcaH protocatechuate 3,4-dioxygenase, alpha subunit
pcaI 3-oxoadipate CoA-transferase subunit A (PcaI)
pcaJ 3-oxoadipate CoA-transferase subunit B (PcaJ)
pimB 3-oxopimeloyl-CoA:CoA acetyltransferase
pimC pimeloyl-CoA dehydrogenase, small subunit
pimD pimeloyl-CoA dehydrogenase, large subunit
pimF 6-carboxyhex-2-enoyl-CoA hydratase
praB 2-hydroxymuconate 6-semialdehyde dehydrogenase
praC 2-hydroxymuconate tautomerase
praD 2-oxohex-3-enedioate decarboxylase

Confidence: high confidence medium confidence low confidence
transporter – transporters and PTS systems are shaded because predicting their specificity is particularly challenging.

This GapMind analysis is from Sep 24 2021. The underlying query database was built on Sep 17 2021.

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About GapMind

Each pathway is defined by a set of rules based on individual steps or genes. Candidates for each step are identified by using ublast (a fast alternative to protein BLAST) against a database of manually-curated proteins (most of which are experimentally characterized) or by using HMMer with enzyme models (usually from TIGRFam). Ublast hits may be split across two different proteins.

A candidate for a step is "high confidence" if either:

where "other" refers to the best ublast hit to a sequence that is not annotated as performing this step (and is not "ignored").

Otherwise, a candidate is "medium confidence" if either:

Other blast hits with at least 50% coverage are "low confidence."

Steps with no high- or medium-confidence candidates may be considered "gaps." For the typical bacterium that can make all 20 amino acids, there are 1-2 gaps in amino acid biosynthesis pathways. For diverse bacteria and archaea that can utilize a carbon source, there is a complete high-confidence catabolic pathway (including a transporter) just 38% of the time, and there is a complete medium-confidence pathway 63% of the time. Gaps may be due to:

GapMind relies on the predicted proteins in the genome and does not search the six-frame translation. In most cases, you can search the six-frame translation by clicking on links to Curated BLAST for each step definition (in the per-step page).

For more information, see:

If you notice any errors or omissions in the step descriptions, or any questionable results, please let us know

by Morgan Price, Arkin group, Lawrence Berkeley National Laboratory