bifunctional acetylglutamate kinase/N-acetyl-gamma-glutamyl-phosphate reductase; amino acid kinase family protein( domain architecture ID 10223872)
bifunctional acetylglutamate kinase/N-acetyl-gamma-glutamyl-phosphate reductase contains an N-terminal N-Acetyl-L-glutamate kinase (NAGK) that catalyzes the phosphorylation of NAG, and a C-terminal reductase domain (ArgC) that catalyzes the third step or Arg biosynthesis from Glu| amino acid kinase (AAK) family protein catalyzes the phosphorylation of a variety of substrates including amino acids, using ATP as the source of the phosphoryl group
Amino Acid Kinases (AAK) superfamily, catalytic domain; present in such enzymes like ...
95-364
1.37e-151
Amino Acid Kinases (AAK) superfamily, catalytic domain; present in such enzymes like N-acetylglutamate kinase (NAGK), carbamate kinase (CK), aspartokinase (AK), glutamate-5-kinase (G5K) and UMP kinase (UMPK). The AAK superfamily includes kinases that phosphorylate a variety of amino acid substrates. These kinases catalyze the formation of phosphoric anhydrides, generally with a carboxylate, and use ATP as the source of the phosphoryl group; are involved in amino acid biosynthesis. Some of these kinases control the process via allosteric feed-back inhibition.
The actual alignment was detected with superfamily member cd04236:
Pssm-ID: 444912 [Multi-domain] Cd Length: 271 Bit Score: 434.27 E-value: 1.37e-151
NAT, N-acetyltransferase, of N-acetylglutamate synthase; This is the C-terminal NAT or ...
350-513
6.44e-64
NAT, N-acetyltransferase, of N-acetylglutamate synthase; This is the C-terminal NAT or N-acetyltransferase domain of bifunctional N-acetylglutamate synthase/kinases. It catalyzes the first two steps in arginine biosynthesis. This domain contains the putative NAGS - N-acetylglutamate synthase - active site. It is found at the C-terminus of Neurospora crassa acetylglutamate synthase - amino-acid acetyltransferase, EC: 2.3.1.1. It is also found C-terminal to the amino acid kinase region (pfam00696) in some fungal acetylglutamate kinase enzymes. it stabilizes the yeast NAGK, N-acetyl-L-glutamate kinase, slows catalysis and modulates feed-back inhibition by arginine. This domain is found to be the N-acetyltransferase (NAT) domain, and it has a typical GCN5-related NAT fold and a site that catalyzes NAG synthesis which is located >25 Angstrom away from the L-arginine binding site in the N-temrinal domain pfam00696.
:
Pssm-ID: 398437 Cd Length: 166 Bit Score: 205.56 E-value: 6.44e-64
AAK_NAGS-Urea: N-acetylglutamate (NAG) kinase-like domain of the NAG Synthase (NAGS) of the ...
95-364
1.37e-151
AAK_NAGS-Urea: N-acetylglutamate (NAG) kinase-like domain of the NAG Synthase (NAGS) of the urea cycle found in animals. Ureogenic NAGS is a mitochondrial enzyme catalyzing the formation of NAG from acetylcoenzyme A and L-glutamate; NAG is an essential allosteric activator of carbamylphosphate synthase I, the first and rate limiting enzyme of the urea cycle. Ureogenic NAGS activity is dependent on the concentration of glutamate (substrate) and arginine (activator). Domain architecture of ureogenic NAGS consists of an N-terminal NAG kinase-like (ArgB) domain (this CD) and a C-terminal DUF619 domain. Members of this CD belong to the protein superfamily, the Amino Acid Kinase Family (AAKF).
Pssm-ID: 239769 [Multi-domain] Cd Length: 271 Bit Score: 434.27 E-value: 1.37e-151
NAT, N-acetyltransferase, of N-acetylglutamate synthase; This is the C-terminal NAT or ...
350-513
6.44e-64
NAT, N-acetyltransferase, of N-acetylglutamate synthase; This is the C-terminal NAT or N-acetyltransferase domain of bifunctional N-acetylglutamate synthase/kinases. It catalyzes the first two steps in arginine biosynthesis. This domain contains the putative NAGS - N-acetylglutamate synthase - active site. It is found at the C-terminus of Neurospora crassa acetylglutamate synthase - amino-acid acetyltransferase, EC: 2.3.1.1. It is also found C-terminal to the amino acid kinase region (pfam00696) in some fungal acetylglutamate kinase enzymes. it stabilizes the yeast NAGK, N-acetyl-L-glutamate kinase, slows catalysis and modulates feed-back inhibition by arginine. This domain is found to be the N-acetyltransferase (NAT) domain, and it has a typical GCN5-related NAT fold and a site that catalyzes NAG synthesis which is located >25 Angstrom away from the L-arginine binding site in the N-temrinal domain pfam00696.
Pssm-ID: 398437 Cd Length: 166 Bit Score: 205.56 E-value: 6.44e-64
DUF619 domain of various N-acetylglutamate Synthases (NAGS) of the urea (U) cycle of humans ...
398-497
7.56e-58
DUF619 domain of various N-acetylglutamate Synthases (NAGS) of the urea (U) cycle of humans and fish; This family includes the DUF619 domain of various N-acetylglutamate synthases (NAGS) of the urea cycle found in humans and fish, the DUF619 domain of the NAGS of the fungal arginine-biosynthetic pathway (FABP), as well as the DUF619 domain present in C-terminal of a NAG kinase-like domain in a limited number of predicted NAGSs found in bacteria and Dictyostelium. Ureogenic NAGS is a mitochondrial enzyme catalyzing the formation of NAG from acetylcoenzyme A and L-glutamate. NAGS is an essential allosteric activator of carbamylphosphate synthase I, the first and rate limiting enzyme of the urea cycle. Domain architecture of ureogenic and fungal NAGS consists of an N-terminal NAG kinase-like domain and a C-terminal DUF619 domain. The DUF619 domain function has yet to be characterized.
Pssm-ID: 176267 Cd Length: 99 Bit Score: 187.19 E-value: 7.56e-58
Amino acid kinase family; This family includes kinases that phosphorylate a variety of amino ...
140-305
3.65e-04
Amino acid kinase family; This family includes kinases that phosphorylate a variety of amino acid substrates, as well as uridylate kinase and carbamate kinase. This family includes: Aspartokinase EC:2.7.2.4. Acetylglutamate kinase EC:2.7.2.8. Glutamate 5-kinase EC:2.7.2.11. Uridylate kinase EC:2.7.4.-. Carbamate kinase EC:2.7.2.2.
Pssm-ID: 395565 [Multi-domain] Cd Length: 232 Bit Score: 42.35 E-value: 3.65e-04
AAK_NAGS-Urea: N-acetylglutamate (NAG) kinase-like domain of the NAG Synthase (NAGS) of the ...
95-364
1.37e-151
AAK_NAGS-Urea: N-acetylglutamate (NAG) kinase-like domain of the NAG Synthase (NAGS) of the urea cycle found in animals. Ureogenic NAGS is a mitochondrial enzyme catalyzing the formation of NAG from acetylcoenzyme A and L-glutamate; NAG is an essential allosteric activator of carbamylphosphate synthase I, the first and rate limiting enzyme of the urea cycle. Ureogenic NAGS activity is dependent on the concentration of glutamate (substrate) and arginine (activator). Domain architecture of ureogenic NAGS consists of an N-terminal NAG kinase-like (ArgB) domain (this CD) and a C-terminal DUF619 domain. Members of this CD belong to the protein superfamily, the Amino Acid Kinase Family (AAKF).
Pssm-ID: 239769 [Multi-domain] Cd Length: 271 Bit Score: 434.27 E-value: 1.37e-151
NAT, N-acetyltransferase, of N-acetylglutamate synthase; This is the C-terminal NAT or ...
350-513
6.44e-64
NAT, N-acetyltransferase, of N-acetylglutamate synthase; This is the C-terminal NAT or N-acetyltransferase domain of bifunctional N-acetylglutamate synthase/kinases. It catalyzes the first two steps in arginine biosynthesis. This domain contains the putative NAGS - N-acetylglutamate synthase - active site. It is found at the C-terminus of Neurospora crassa acetylglutamate synthase - amino-acid acetyltransferase, EC: 2.3.1.1. It is also found C-terminal to the amino acid kinase region (pfam00696) in some fungal acetylglutamate kinase enzymes. it stabilizes the yeast NAGK, N-acetyl-L-glutamate kinase, slows catalysis and modulates feed-back inhibition by arginine. This domain is found to be the N-acetyltransferase (NAT) domain, and it has a typical GCN5-related NAT fold and a site that catalyzes NAG synthesis which is located >25 Angstrom away from the L-arginine binding site in the N-temrinal domain pfam00696.
Pssm-ID: 398437 Cd Length: 166 Bit Score: 205.56 E-value: 6.44e-64
DUF619 domain of various N-acetylglutamate Synthases (NAGS) of the urea (U) cycle of humans ...
398-497
7.56e-58
DUF619 domain of various N-acetylglutamate Synthases (NAGS) of the urea (U) cycle of humans and fish; This family includes the DUF619 domain of various N-acetylglutamate synthases (NAGS) of the urea cycle found in humans and fish, the DUF619 domain of the NAGS of the fungal arginine-biosynthetic pathway (FABP), as well as the DUF619 domain present in C-terminal of a NAG kinase-like domain in a limited number of predicted NAGSs found in bacteria and Dictyostelium. Ureogenic NAGS is a mitochondrial enzyme catalyzing the formation of NAG from acetylcoenzyme A and L-glutamate. NAGS is an essential allosteric activator of carbamylphosphate synthase I, the first and rate limiting enzyme of the urea cycle. Domain architecture of ureogenic and fungal NAGS consists of an N-terminal NAG kinase-like domain and a C-terminal DUF619 domain. The DUF619 domain function has yet to be characterized.
Pssm-ID: 176267 Cd Length: 99 Bit Score: 187.19 E-value: 7.56e-58
DUF619 domain of various N-acetylglutamate Synthases of the fungal arginine-biosynthetic ...
398-497
1.77e-57
DUF619 domain of various N-acetylglutamate Synthases of the fungal arginine-biosynthetic pathway and urea cycle found in humans and fish; DUF619-NAGS: This family includes the DUF619 domain of various N-acetylglutamate synthases (NAGS) of the urea cycle found in humans and fish, the DUF619 domain of the NAGS of the fungal arginine-biosynthetic pathway (FABP), as well as the DUF619 domain present in C-terminal of a NAG kinase-like domain in a limited number of predicted NAGSs found in bacteria and Dictyostelium. Ureogenic NAGS is a mitochondrial enzyme catalyzing the formation of NAG from acetylcoenzyme A and L-glutamate. NAGS is an essential allosteric activator of carbamylphosphate synthase I, the first and rate limiting enzyme of the urea cycle. Domain architecture of ureogenic and fungal NAGS consists of an N-terminal NAG kinase-like domain and a C-terminal DUF619 domain. The DUF619 domain function has yet to be characterized.
Pssm-ID: 176266 Cd Length: 99 Bit Score: 186.42 E-value: 1.77e-57
AAK_NAGK-fArgBP: N-Acetyl-L-glutamate kinase (NAGK) of the fungal arginine-biosynthetic ...
132-363
1.86e-27
AAK_NAGK-fArgBP: N-Acetyl-L-glutamate kinase (NAGK) of the fungal arginine-biosynthetic pathway (fArgBP). The nuclear-encoded, mitochondrial polyprotein precursor with an N-terminal NAGK (ArgB) domain (this CD), a central DUF619 domain, and a C-terminal reductase domain (ArgC, N-Acetylglutamate Phosphate Reductase, NAGPR). The precursor is cleaved in the mitochondria into two distinct enzymes (NAGK-DUF619 and NAGPR). Native molecular weights of these proteins indicate that the kinase is an octamer whereas the reductase is a dimer. This CD also includes some gamma-proteobacteria (Xanthomonas and Xylella) NAG kinases with an N-terminal NAGK (ArgB) domain (this CD) and a C-terminal DUF619 domain. The DUF619 domain is described as a putative distant homolog of the acetyltransferase, ArgA, predicted to function in NAG synthase association in fungi. Eukaryotic sequences have an N-terminal mitochondrial transit peptide. Members of this NAG kinase domain CD belong to the Amino Acid Kinase Superfamily (AAK).
Pssm-ID: 239785 [Multi-domain] Cd Length: 248 Bit Score: 110.55 E-value: 1.86e-27
Amino Acid Kinases (AAK) superfamily, catalytic domain; present in such enzymes like ...
133-364
7.28e-23
Amino Acid Kinases (AAK) superfamily, catalytic domain; present in such enzymes like N-acetylglutamate kinase (NAGK), carbamate kinase (CK), aspartokinase (AK), glutamate-5-kinase (G5K) and UMP kinase (UMPK). The AAK superfamily includes kinases that phosphorylate a variety of amino acid substrates. These kinases catalyze the formation of phosphoric anhydrides, generally with a carboxylate, and use ATP as the source of the phosphoryl group; are involved in amino acid biosynthesis. Some of these kinases control the process via allosteric feed-back inhibition.
Pssm-ID: 239033 [Multi-domain] Cd Length: 248 Bit Score: 97.51 E-value: 7.28e-23
DUF619 domain of N-acetylglutamate Synthase of the fungal arginine-biosynthetic pathway; ...
398-497
6.12e-20
DUF619 domain of N-acetylglutamate Synthase of the fungal arginine-biosynthetic pathway; DUF619-NAGS-FABP: This family includes the DUF619 domain of N-acetylglutamate synthase (NAGS) of the fungal arginine-biosynthetic pathway (FABP). This NAGS (also known as arginine-requiring protein 2 or ARG2) consists of an N-terminal NAG kinase-like domain and a C-terminal DUF619 domain. NAGS catalyzes the formation of NAG from acetylcoenzyme A and L-glutamate. The DUF619 domain, yet to be characterized, is predicted to function in NAGS association in fungi.
Pssm-ID: 176268 Cd Length: 108 Bit Score: 85.20 E-value: 6.12e-20
DUF619 domain of various N-acetylglutamate Kinases and N-acetylglutamate Synthases; ...
399-497
1.22e-16
DUF619 domain of various N-acetylglutamate Kinases and N-acetylglutamate Synthases; DUF619-like: This family includes the DUF619 domain of various N-acetylglutamate synthases (NAGS) of the urea cycle found in humans and fish, the DUF619 domain of the NAGS of the fungal arginine-biosynthetic pathway (FABP), as well as the DUF619 domain present C-terminal of a NAG kinase-like domain in a limited number of predicted NAGSs found in bacteria and Dictyostelium. Ureogenic NAGS is a mitochondrial enzyme catalyzing the formation of NAG from acetylcoenzyme A and L-glutamate. NAGS is an essential allosteric activator of carbamylphosphate synthase I, the first and rate limiting enzyme of the urea cycle. Domain architecture of ureogenic and fungal NAGS consists of an N-terminal NAG kinase-like domain and a C-terminal DUF619 domain. This subgroup also includes the DUF619 domain of the FABP N-acetylglutamate kinase (NAGK), the enzyme that catalyzes the second reaction of arginine biosynthesis; the phosphorylation of the gamma-carboxyl group of NAG to produce N-acetylglutamylphosphate (NAGP) which is subsequently converted to ornithine in two more steps. The nuclear-encoded, mitochondrial polyprotein precursor (ARG5,6) consists of an N-terminal NAGK (ArgB) domain, a central DUF619 domain, and a C-terminal reductase domain (ArgC, N-acetylglutamate phosphate reductase). The DUF619 domain function has yet to be characterized.
Pssm-ID: 176264 Cd Length: 98 Bit Score: 75.21 E-value: 1.22e-16
DUF619 domain of N-acetylglutamate kinase (NAGK) of the fungal arginine-biosynthetic pathway; ...
398-497
1.38e-12
DUF619 domain of N-acetylglutamate kinase (NAGK) of the fungal arginine-biosynthetic pathway; DUF619-NAGK-FABP: DUF619 domain of N-acetylglutamate kinase (NAGK) of the fungal arginine-biosynthetic pathway (FABP). The nuclear-encoded, mitochondrial polyprotein precursor (ARG5,6) consists of an N-terminal NAGK (ArgB) domain, a central DUF619 domain, and a C-terminal reductase domain (ArgC, N-Acetylglutamate Phosphate Reductase, NAGPR). The precursor is cleaved into two distinct enzymes (NAGK-DUF619 and NAGPR) in the mitochondria. Native molecular weights of these proteins indicate that the kinase is an octamer whereas the reductase is a dimer. Arg5,6 catalyzes the second reaction of arginine biosynthesis; the phosphorylation of the gamma-carboxyl group of NAG to produce N-acetylglutamylphosphate (NAGP) which is subsequently converted to ornithine in two more steps. It also binds and regulates the promoters of nuclear and mitochondrial genes, and may possibly regulate precursor mRNA metabolism. The DUF619 domain function has yet to be characterized.
Pssm-ID: 176265 Cd Length: 98 Bit Score: 63.88 E-value: 1.38e-12
AAK_NAGK-like: N-Acetyl-L-glutamate kinase (NAGK)-like . Included in this CD are the ...
229-364
3.86e-05
AAK_NAGK-like: N-Acetyl-L-glutamate kinase (NAGK)-like . Included in this CD are the Escherichia coli and Pseudomonas aeruginosa type NAGKs which catalyze the phosphorylation of N-acetyl-L-glutamate (NAG) by ATP in the second step of arginine biosynthesis found in bacteria and photosynthetic organisms using either the acetylated, noncyclic (NC), or non-acetylated, cyclic (C) route of ornithine biosynthesis. Also included in this CD is a distinct group of uncharacterized (UC) bacterial and archeal NAGKs. Members of this CD belong to the Amino Acid Kinase Superfamily (AAK).
Pssm-ID: 239771 [Multi-domain] Cd Length: 256 Bit Score: 45.19 E-value: 3.86e-05
AAK_NAGS-ABP: N-acetylglutamate (NAG) kinase-like domain of the NAG Synthase (NAGS) of the ...
228-363
1.20e-04
AAK_NAGS-ABP: N-acetylglutamate (NAG) kinase-like domain of the NAG Synthase (NAGS) of the arginine-biosynthesis pathway (ABP) found in gamma- and beta-proteobacteria and higher plant chloroplasts. Domain architecture of these NAGS consisted of an N-terminal NAG kinase-like (ArgB) domain (this CD) and a C-terminal NAG synthase, acetyltransferase (ArgA) domain. Both bacterial and plant sequences in this CD have a conserved N-terminal extension; a similar sequence in the NAG kinases of the cyclic arginine-biosynthesis pathway has been implicated in feedback inhibition sensing. Plant sequences also have an N-terminal chloroplast transit peptide and an insert (approx. 70 residues) in the C-terminal region of ArgB. Members of this CD belong to the Amino Acid Kinase Superfamily (AAK).
Pssm-ID: 239770 [Multi-domain] Cd Length: 280 Bit Score: 44.08 E-value: 1.20e-04
AAK_NAGK-C: N-Acetyl-L-glutamate kinase - cyclic (NAGK-C) catalyzes the phosphorylation of the ...
229-364
2.12e-04
AAK_NAGK-C: N-Acetyl-L-glutamate kinase - cyclic (NAGK-C) catalyzes the phosphorylation of the gamma-COOH group of N-acetyl-L-glutamate (NAG) by ATP in the second step of arginine biosynthesis found in some bacteria and photosynthetic organisms using the non-acetylated, cyclic route of ornithine biosynthesis. In this pathway, glutamate is first N-acetylated and then phosphorylated by NAGK to give phosphoryl NAG, which is converted to NAG-ornithine. There are two variants of this pathway. In one, typified by the pathway in Thermotoga maritima and Pseudomonas aeruginosa, the acetyl group is recycled by reversible transacetylation from acetylornithine to glutamate. The phosphorylation of NAG by NAGK is feedback inhibited by arginine. In photosynthetic organisms, NAGK is the target of the nitrogen-signaling protein PII. Hexameric formation of NAGK domains appears to be essential to both arginine inhibition and NAGK-PII complex formation. NAGK-C are members of the Amino Acid Kinase Superfamily (AAK).
Pssm-ID: 239783 [Multi-domain] Cd Length: 279 Bit Score: 43.26 E-value: 2.12e-04
Amino acid kinase family; This family includes kinases that phosphorylate a variety of amino ...
140-305
3.65e-04
Amino acid kinase family; This family includes kinases that phosphorylate a variety of amino acid substrates, as well as uridylate kinase and carbamate kinase. This family includes: Aspartokinase EC:2.7.2.4. Acetylglutamate kinase EC:2.7.2.8. Glutamate 5-kinase EC:2.7.2.11. Uridylate kinase EC:2.7.4.-. Carbamate kinase EC:2.7.2.2.
Pssm-ID: 395565 [Multi-domain] Cd Length: 232 Bit Score: 42.35 E-value: 3.65e-04
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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