Amino-acid N-acetyltransferases acting mainly on glutamate in the first step of the 'acetylated' ornithine biosynthesis pathway. For this reason it is also called N-acetylglutamate synthase. The enzyme may also act on aspartate. Similar to sprot|ARGA_YERPE (44%) and to sprot|ARGA_ECOLI (43%). Pfam (PF00696): Aspartokinase superfamily Pfam (PF00583): GCN5-related N-acetyltransferase; Specificity unclear.

ArgB protein; Catalyzes the ATP-dependent phosphorylation of N-acetyl-L- glutamate; Belongs to the acetylglutamate kinase family. ArgB subfamily.

Probable arginine biosynthesis bifunctional protein ArgJ; Catalyzes two activities which are involved in the cyclic version of arginine biosynthesis: the synthesis of N-acetylglutamate from glutamate and acetyl-CoA as the acetyl donor, and of ornithine by transacetylation between N(2)-acetylornithine and glutamate. Belongs to the ArgJ family.

ArgF protein; Reversibly catalyzes the transfer of the carbamoyl group from carbamoyl phosphate (CP) to the N(epsilon) atom of ornithine (ORN) to produce L-citrulline; Belongs to the aspartate/ornithine carbamoyltransferase superfamily. OTCase family.

Adenylosuccinate lyase (Adenylosuccinase) (ASL); High confidence in function and specificity; Belongs to the lyase 1 family. Adenylosuccinate lyase subfamily.

N-acetyl-gamma-glutamyl-phosphate reductase; Catalyzes the NADPH-dependent reduction of N-acetyl-5- glutamyl phosphate to yield N-acetyl-L-glutamate 5-semialdehyde. Belongs to the NAGSA dehydrogenase family. Type 2 subfamily.

Malate dehydrogenase; Catalyzes the reversible oxidation of malate to oxaloacetate. Belongs to the LDH/MDH superfamily. MDH type 2 family.

Putative fumarate hydratase; Catalyzes the reversible hydration of fumarate to (S)-malate. Belongs to the class-I fumarase family.

Putative orn/arg/lys decarboxylase. Homology to adiA of E. coli of 37% (sprot|ADIA_ECOLI). This family is composed of ornithine decarboxylases (ODC), arginine decarboxylases (ADC) and lysine decarboxylases (LDC), and belongs to the pyridoxal phosphate (PLP)-dependent aspartate aminotransferase domain superfamily (fold I). These enzymes catalyse the decarboxylation of ornithine,arginine, or lysine, respectively using PLP as a co-factor. Pfam: Orn/Lys/Arg decarboxylase no signal peptide no TMHs; Specificity unclear.