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6.3.2.48: L-arginine-specific L-amino acid ligase

This is an abbreviated version!
For detailed information about L-arginine-specific L-amino acid ligase, go to the full flat file.

Reaction

ATP
+
L-arginine
+
an L-amino acid
=
ADP
+
phosphate
+
an L-arginyl-L-amino acid

Synonyms

RizA

ECTree

     6 Ligases
         6.3 Forming carbon-nitrogen bonds
             6.3.2 Acid—amino-acid ligases (peptide synthases)
                6.3.2.48 L-arginine-specific L-amino acid ligase

Substrates Products

Substrates Products on EC 6.3.2.48 - L-arginine-specific L-amino acid ligase

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SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
ATP + 2 L-Arg
ADP + phosphate + L-Arg-L-Arg
show the reaction diagram
ATP + L-Arg + L-2-amino-5-phosphono-3-cis-pentenoate
ADP + phosphate + L-Arg-L-2-amino-5-phosphono-3-cis-pentenoate
show the reaction diagram
ATP + L-Arg + L-Ala
ADP + phosphate + L-Arg-L-Ala
show the reaction diagram
ATP + L-Arg + L-His
ADP + phosphate + L-Arg-L-His
show the reaction diagram
ATP + L-Arg + L-Ser
ADP + phosphate + L-Arg-L-Ser
show the reaction diagram
-
-
-
?
ATP + L-Arg + L-Xaa
ADP + phosphate + L-Arg-L-Xaa
show the reaction diagram
the enzyme synthesizes hetero-dipeptides. Arg is present at the N-terminus. The enzyme synthesizes Arg-Arg, when only Arg is used as substrate, but preferentially synthesizes Arg-Xaa when Arg and other amino acids are used as substrates. RizA has strict substrate specificity toward L-arginine as the N-terminal substrate. Hetero-dipeptide consisting of Arg and Pro is not detected. The enzyme does not use D-form amino acids as substrates. No tripeptides and no longer peptides are detected. The substrate specificity at the C-terminus is relaxed
-
-
?
ATP + L-arginine + an L-amino acid
ADP + phosphate + an L-arginyl-L-amino acid
show the reaction diagram
additional information
?
-