L-arginine catabolism in Cloacibacillus porcorum CL-84

Best path

bgtB, artP, arcA, arcB, arcC, rocD, rocA

Rules

Overview: Arginine utilization in GapMind is based on MetaCyc pathways L-arginine degradation I via arginase (link); II via arginine succinyltransferase (link), III via arginine decarboxylase and agmatinase (link), IV via arginine decarboxylase and agmatine deiminase (link), V via arginine deiminase (link), VI (arginase 2, link), VII (arginase 3, link), VIII via arginase oxidase (link), IX via arginine:pyruvate transaminase (link), X via arginine monooxygenase (link), XIII via proline (link), and XIV via D-ornithine (link). Common intermediates are L-ornithine or L-proline. GapMind does not include pathways XI (link), which is poorly understood, or XII (link), which is not reported in prokaryotes.

• all:
  • arginine-transport, rocF and ornithine-degradation
  • or arginine-transport, arginine-succinyltransferase, astB, astC, astD and astE
  • or arginine-transport, adiA, speB and putrescine-degradation
  • or arginine-transport, adiA, aguA, aguB and putrescine-degradation
  • or arginine-transport, arcA, arcB, arcC and ornithine-degradation
  • or arginine-transport, aroD, aruI, kauB, gbuA and GABA-degradation
  • or arginine-transport, aruH, aruI, kauB, gbuA and GABA-degradation
  • or arginine-transport, arg-monooxygenase, gbamidase, kauB, gbuA and GABA-degradation
  • Comment: Pathways I, VI, or VII begin with rocF (arginase), which forms ornithine and urea. (The urea might not be utilized, so urease is not described here.) They differ in how the ornithine is catabolized. Pathway II begins with arginine succinyltransferase and ends with succinate and glutamate. The succinate would then be activated to succinyl-CoA to restart the cycle, or the glutamate might be oxidized to succinyl-CoA; these steps are not included here. Pathway III begins with decarboxylation to agmatine by adiA, followed by hydrolysis to putrescine and urea. Pathway IV begins with adiA and agmatine deiminase (aguA), which yields N-carbamoylputrescine; this is hydrolyzed to putrescine and urea. Pathway V begins with arginine deiminase (arcA), forming citrulline, and and a carbamoyltransferase forms carbamoyl-phosphate and ornithine. The carbamoyl-phosphate is consumed by carbamate kinase (in reverse, forming ammonia and CO2 and ATP). Pathway VIII begins with arginine oxidase aroD, which forms 5-guanidino-2-oxopentanoate (2-ketoarginine); this is converted to gamma-aminobutyrate (GABA). Pathway IX is similar to pathway VIII but the transaminase aruH forms the 5-guanidino-2-oxopentanoate. Pathway X involves arginine 2-monooxygenase (decarboxylating), forming 4-guanidinobutyramide, and an amidase, forming 4-guanidinobutyrate, which is consumed as in pathway VIII or IX.
• ornithine-degradation:
  • aruF, aruG, astC, astD and astE
  • or rocD and rocA
  • or rocD, PRO3 and proline-degradation
  • or ocd and proline-degradation
  • or odc and putrescine-degradation
  • or orr, oraS, oraE, ord, ortA and ortB
  • Comment: Ornithine is a common intermediate. It can be succinylated by aruFG and then catabolized by the later steps of the arginine succinyltransferase pathway, via aminotransferase, dehydrogenase, and desuccinylase reactions (see PMC179677 and PMID:7523119). Or as part of L-arginine degradation I, the aminotransferase rocD converts ornithine to glutamate 5-semialdehyde, which spontaneously converts to 1-pyrroline-5-carboxylate. A dehydrogenase converts this to glutamate. Or 1-pyrroline-5-carboxylate can be reduced to proline by PRO3, as in L-arginine degradation VI. Alternatively, ornithine can be converted directly to proline by ornithine cyclodeaminase (ocd). Or ornithine can be decarboxylated to putrescine by odc (link). Or ornithine can be catabolized via D-ornithine, as in L-arginine degradation XIV. A racemase converts L-ornithine to D-ornithine; an aminomutase forms (2R,4S) 2,4-diaminopentanoate; a dehydrogenase forms (2R)-2-amino-4-oxopentanoate, and a thiolase cleaves it to D-alanine and acetyl-CoA. D-alanine could be oxidized to pyruvate or perhaps secreted; this is not described here.
• arginine-succinyltransferase:
  • aruF and aruG
  • or astA
• proline-degradation:
  • put1 and putA
  • or prdF, D-proline-reductase and 5-aminovalerate-degradation
  • Comment: In pathway I, proline dehydrogenase (put1) forms (S)-1-pyrroline-5-carboxylate, which spontaneously hydrates to L-glutamate 5-semialdehyde, and a dehydrogenase (putA) to glutamate. Glutamate can be transaminated to 2-oxoglutarate, which is an intermediate in central metabolism (not represented). In pathway II, proline racemase (prdF) forms D-proline, and a reductase forms 5-aminovalerate.
• D-proline-reductase: prdA, prdB and prdC
  • Comment: D-proline reductase includes components PrdA and PrdB and electron transfer protein PrdC
• 5-aminovalerate-degradation: davT, davD and glutarate-degradation
  • Comment: 5-aminovalerate is an intermediate in L-lysine degradation (link, link). It is transaminated to glutarate semialdehyde and oxidized to glutarate. (A fermentative pathway via 5-hydroxyvalerate has also been reported, but does not seem to be fully linked to sequence; see pathway 5 of PMID:11759672.)
• glutarate-degradation:
  • glaH and lhgD
  • or gcdG and glutaryl-CoA-degradation
  • Comment: Glutarate is an intermediate in L-lysine degradation. As part of MetaCyc pathway L-lysine degradation I (link), gluratate is hydroxylated to L-2-hydroxyglutarate (also known as (S)-2-hydroxyglutarate) by a 2-oxoglutarate-dependent oxidase. This reaction releases succinate (a TCA cycle intermediate) and CO2. A dehydrogenase then oxidizes to L-2-hydroxyglutarate to regenerate 2-oxoglutarate. Alternatively, as part of pathway IV (link), glutarate can be activated to glutaryl-CoA by a CoA-transferase. Glutaryl-CoA degradation (link) involves glutaryl-CoA dehydrogenase (decarboxylating) to crotonyl-CoA (trans-but-2-enoyl-CoA), hydration to (S)-hydroxybutanoyl-CoA, oxidization to acetoacetyl-CoA, and cleavage by a C-acetyltransferase to two acetyl-CoA.
• glutaryl-CoA-degradation: gcdH, ech, fadB and atoB
  • Comment: In MetaCyc pathway glutaryl-CoA degradation (link), glutaryl-CoA is oxidized to (E)-glutaconyl-CoA and oxidatively decarboxylated to crotonyl-CoA (both by the same enzyme), hydrated to 3-hydroxybutanoyl-CoA, oxidized to acetoacetyl-CoA, and cleaved to two acetyl-CoA.
• GABA-degradation: gabT and gabD
  • Comment: GABA (4-aminobutanoate) is consumed by an aminotransferase (known as gabT or puuE), which forms succinate semialdehyde, and dehydrogenase gabD, which forms succinate.
• putrescine-degradation: putrescine-to-GABA and GABA-degradation
  • Comment: Gamma-aminobutyrate is a common intermediate.
• putrescine-to-GABA:
  • patA and patD
  • or puuA, puuB, puuC and puuD
  • or puo and patD
  • Comment: In pathway I or pathway V, putrescine aminotransferase (patA or spuC) forms 4-aminobutanal, and dehydrogenase patD forms GABA. In pathway II, putrescine is converted to GABA with glutamylated intermedates: puuA forms gamma-glutamyl-putrescine, an oxidase forms 4-(gamma-glutaminylamino)butanal, a dehydrogenase forms 4-(gamma-glutamylamino)butanoate, and a hydrolase releases glutamate and GABA. As part of pathway IV, putrescine oxidase (puo) forms 4-aminobutanal, which is probably converted to GABA by dehydrogenase patD.
• arginine-transport:
  • artJ, artM, artP and artQ
  • or bgtB and artP
  • or braC, braD, braE, braF and braG
  • or rocE
  • or AAP3
  • or CAT1
  • or Can1
  • Comment: Transporters were identified using: query: transporter:arginine:L-arginine:arg.

71 steps (42 with candidates)

Or see definitions of steps

Step	Description	Best candidate	2nd candidate
bgtB	L-arginine ABC transporter, fused substrate-binding and permease components (BgtB/BgtAB)	BED41_RS04025
artP	L-arginine ABC transporter, ATPase component ArtP/HisP/AotP/BgtA	BED41_RS04030	BED41_RS14585
arcA	arginine deiminase	BED41_RS07965
arcB	ornithine carbamoyltransferase	BED41_RS07960	BED41_RS09910
arcC	carbamate kinase	BED41_RS02530
rocD	ornithine aminotransferase	BED41_RS04630	BED41_RS14930
rocA	1-pyrroline-5-carboxylate dehydrogenase	BED41_RS01765	BED41_RS00575
Alternative steps:
AAP3	L-arginine transporter AAP3
adiA	arginine decarboxylase (AdiA/SpeA)	BED41_RS04780
aguA	agmatine deiminase
aguB	N-carbamoylputrescine hydrolase
arg-monooxygenase	arginine 2-monooxygenase
aroD	L-arginine oxidase
artJ	L-arginine ABC transporter, periplasmic substrate-binding component ArtJ/HisJ/ArtI/AotJ/ArgT	BED41_RS04025
artM	L-arginine ABC transporter, permease component 1 (ArtM/HisM/AotM)	BED41_RS04025
artQ	L-arginine ABC transporter, permease component 2 (ArtQ/HisQ/AotQ)	BED41_RS04025
aruF	ornithine/arginine N-succinyltransferase subunit AruAI (AruF)
aruG	ornithine/arginine N-succinyltransferase subunit AruAII (AruG)
aruH	L-arginine:pyruvate transaminase	BED41_RS03880	BED41_RS04460
aruI	2-ketoarginine decarboxylase	BED41_RS01055	BED41_RS00950
astA	arginine N-succinyltransferase
astB	N-succinylarginine dihydrolase
astC	succinylornithine transaminase	BED41_RS04630	BED41_RS13065
astD	succinylglutamate semialdehyde dehydrogenase	BED41_RS00575	BED41_RS05595
astE	succinylglutamate desuccinylase
atoB	acetyl-CoA C-acetyltransferase	BED41_RS01560	BED41_RS10190
braC	ABC transporter for glutamate, histidine, arginine, and other amino acids, substrate-binding component BraC
braD	ABC transporter for glutamate, histidine, arginine, and other amino acids, permease component 1 (BraD)	BED41_RS03695	BED41_RS12755
braE	ABC transporter for glutamate, histidine, arginine, and other amino acids, permease component 2 (BraE)	BED41_RS01970	BED41_RS08710
braF	ABC transporter for glutamate, histidine, arginine, and other amino acids, ATPase component 1 (BraF)	BED41_RS12745	BED41_RS14290
braG	ABC transporter for glutamate, histidine, arginine, and other amino acids, ATPase component 2 (BraG)	BED41_RS14285	BED41_RS12740
Can1	L-arginine transporter Can1
CAT1	L-arginine transporter CAT1
davD	glutarate semialdehyde dehydrogenase	BED41_RS00575	BED41_RS15810
davT	5-aminovalerate aminotransferase	BED41_RS14930	BED41_RS04630
ech	(S)-3-hydroxybutanoyl-CoA hydro-lyase	BED41_RS06505	BED41_RS10185
fadB	(S)-3-hydroxybutanoyl-CoA dehydrogenase	BED41_RS06185	BED41_RS10750
gabD	succinate semialdehyde dehydrogenase	BED41_RS15810	BED41_RS11335
gabT	gamma-aminobutyrate transaminase	BED41_RS03030	BED41_RS01535
gbamidase	guanidinobutyramidase
gbuA	guanidinobutyrase	BED41_RS04770
gcdG	succinyl-CoA:glutarate CoA-transferase	BED41_RS10195
gcdH	glutaryl-CoA dehydrogenase
glaH	glutarate 2-hydroxylase, succinate-releasing (GlaH or CsiD)
kauB	4-guanidinobutyraldehyde dehydrogenase	BED41_RS15810	BED41_RS00575
lhgD	L-2-hydroxyglutarate dehydrogenase or oxidase (LhgD or LhgO)	BED41_RS00390
ocd	ornithine cyclodeaminase	BED41_RS01655
odc	L-ornithine decarboxylase
oraE	D-ornithine 4,5-aminomutase, beta (E) subunit
oraS	D-ornithine 4,5-aminomutase, alpha (S) subunit
ord	2,4-diaminopentanoate dehydrogenase
orr	ornithine racemase	BED41_RS03950	BED41_RS00705
ortA	2-amino-4-oxopentanoate thiolase, alpha subunit
ortB	2-amino-4-oxopentanoate thiolase, beta subunit
patA	putrescine aminotransferase (PatA/SpuC)	BED41_RS03030	BED41_RS01535
patD	gamma-aminobutyraldehyde dehydrogenase	BED41_RS15810	BED41_RS00575
prdA	D-proline reductase, prdA component
prdB	D-proline reductase, prdB component	BED41_RS12505
prdC	D-proline reductase, electron transfer component PrdC	BED41_RS15965	BED41_RS08945
prdF	proline racemase	BED41_RS14825	BED41_RS12365
PRO3	pyrroline-5-carboxylate reductase
puo	putrescine oxidase
put1	proline dehydrogenase	BED41_RS02400	BED41_RS12290
putA	L-glutamate 5-semialdeyde dehydrogenase	BED41_RS01765	BED41_RS00575
puuA	glutamate-putrescine ligase
puuB	gamma-glutamylputrescine oxidase
puuC	gamma-glutamyl-gamma-aminobutyraldehyde dehydrogenase	BED41_RS15810	BED41_RS00575
puuD	gamma-glutamyl-gamma-aminobutyrate hydrolase	BED41_RS13835	BED41_RS13685
rocE	L-arginine permease
rocF	arginase
speB	agmatinase	BED41_RS04770	BED41_RS07200

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.