L-arginine catabolism in Roseateles aquatilis CCUG 48205

Best path

artJ, artM, artP, artQ, rocF, ocd, put1, putA

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 (40 with candidates)

Or see definitions of steps

Step	Description	Best candidate	2nd candidate
artJ	L-arginine ABC transporter, periplasmic substrate-binding component ArtJ/HisJ/ArtI/AotJ/ArgT	CDN99_RS00395	CDN99_RS05235
artM	L-arginine ABC transporter, permease component 1 (ArtM/HisM/AotM)	CDN99_RS00405	CDN99_RS05165
artP	L-arginine ABC transporter, ATPase component ArtP/HisP/AotP/BgtA	CDN99_RS00415	CDN99_RS04830
artQ	L-arginine ABC transporter, permease component 2 (ArtQ/HisQ/AotQ)	CDN99_RS00400	CDN99_RS05165
rocF	arginase	CDN99_RS03465
ocd	ornithine cyclodeaminase	CDN99_RS03060
put1	proline dehydrogenase	CDN99_RS23095
putA	L-glutamate 5-semialdeyde dehydrogenase	CDN99_RS23095	CDN99_RS24315
Alternative steps:
AAP3	L-arginine transporter AAP3
adiA	arginine decarboxylase (AdiA/SpeA)	CDN99_RS00615	CDN99_RS19230
aguA	agmatine deiminase	CDN99_RS11670
aguB	N-carbamoylputrescine hydrolase
arcA	arginine deiminase
arcB	ornithine carbamoyltransferase	CDN99_RS14785	CDN99_RS17740
arcC	carbamate kinase
arg-monooxygenase	arginine 2-monooxygenase
aroD	L-arginine oxidase
aruF	ornithine/arginine N-succinyltransferase subunit AruAI (AruF)
aruG	ornithine/arginine N-succinyltransferase subunit AruAII (AruG)
aruH	L-arginine:pyruvate transaminase	CDN99_RS06770	CDN99_RS07375
aruI	2-ketoarginine decarboxylase	CDN99_RS17275	CDN99_RS10105
astA	arginine N-succinyltransferase
astB	N-succinylarginine dihydrolase
astC	succinylornithine transaminase	CDN99_RS14790	CDN99_RS12265
astD	succinylglutamate semialdehyde dehydrogenase	CDN99_RS04080	CDN99_RS27535
astE	succinylglutamate desuccinylase
atoB	acetyl-CoA C-acetyltransferase	CDN99_RS02845	CDN99_RS12975
bgtB	L-arginine ABC transporter, fused substrate-binding and permease components (BgtB/BgtAB)
braC	ABC transporter for glutamate, histidine, arginine, and other amino acids, substrate-binding component BraC	CDN99_RS06805
braD	ABC transporter for glutamate, histidine, arginine, and other amino acids, permease component 1 (BraD)	CDN99_RS12005	CDN99_RS19740
braE	ABC transporter for glutamate, histidine, arginine, and other amino acids, permease component 2 (BraE)	CDN99_RS12000
braF	ABC transporter for glutamate, histidine, arginine, and other amino acids, ATPase component 1 (BraF)	CDN99_RS11995	CDN99_RS04360
braG	ABC transporter for glutamate, histidine, arginine, and other amino acids, ATPase component 2 (BraG)	CDN99_RS11990	CDN99_RS22260
Can1	L-arginine transporter Can1
CAT1	L-arginine transporter CAT1
davD	glutarate semialdehyde dehydrogenase	CDN99_RS27890	CDN99_RS27290
davT	5-aminovalerate aminotransferase	CDN99_RS14790	CDN99_RS12265
ech	(S)-3-hydroxybutanoyl-CoA hydro-lyase	CDN99_RS17935	CDN99_RS02600
fadB	(S)-3-hydroxybutanoyl-CoA dehydrogenase	CDN99_RS04890	CDN99_RS02600
gabD	succinate semialdehyde dehydrogenase	CDN99_RS24315	CDN99_RS04080
gabT	gamma-aminobutyrate transaminase	CDN99_RS25170	CDN99_RS12265
gbamidase	guanidinobutyramidase
gbuA	guanidinobutyrase
gcdG	succinyl-CoA:glutarate CoA-transferase	CDN99_RS12425	CDN99_RS22700
gcdH	glutaryl-CoA dehydrogenase	CDN99_RS14575	CDN99_RS12990
glaH	glutarate 2-hydroxylase, succinate-releasing (GlaH or CsiD)
kauB	4-guanidinobutyraldehyde dehydrogenase	CDN99_RS26885	CDN99_RS25155
lhgD	L-2-hydroxyglutarate dehydrogenase or oxidase (LhgD or LhgO)	CDN99_RS01325
odc	L-ornithine decarboxylase	CDN99_RS00615
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
ortA	2-amino-4-oxopentanoate thiolase, alpha subunit
ortB	2-amino-4-oxopentanoate thiolase, beta subunit
patA	putrescine aminotransferase (PatA/SpuC)	CDN99_RS25170	CDN99_RS12265
patD	gamma-aminobutyraldehyde dehydrogenase	CDN99_RS26885	CDN99_RS25155
prdA	D-proline reductase, prdA component
prdB	D-proline reductase, prdB component
prdC	D-proline reductase, electron transfer component PrdC
prdF	proline racemase
PRO3	pyrroline-5-carboxylate reductase	CDN99_RS23075
puo	putrescine oxidase
puuA	glutamate-putrescine ligase	CDN99_RS02790
puuB	gamma-glutamylputrescine oxidase	CDN99_RS25150
puuC	gamma-glutamyl-gamma-aminobutyraldehyde dehydrogenase	CDN99_RS26885	CDN99_RS25155
puuD	gamma-glutamyl-gamma-aminobutyrate hydrolase
rocA	1-pyrroline-5-carboxylate dehydrogenase	CDN99_RS23095	CDN99_RS24315
rocD	ornithine aminotransferase	CDN99_RS12265	CDN99_RS25170
rocE	L-arginine permease
speB	agmatinase

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.