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2.6.1.B18: archeosine synthase (ammonia)

This is an abbreviated version!
For detailed information about archeosine synthase (ammonia), go to the full flat file.

Reaction

7-cyano-7-carbaguanine in tRNA
+
NH3
=
7-carboximidamide-guanine in tRNA

Synonyms

amidinotransferase QueF-Like, ammonium:preQ0-tRNA aminotransferase, Pcal_0221, QueF-L, QueF-like

ECTree

     2 Transferases
         2.6 Transferring nitrogenous groups
             2.6.1 Transaminases
                2.6.1.B18 archeosine synthase (ammonia)

Purification

Purification on EC 2.6.1.B18 - archeosine synthase (ammonia)

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PURIFICATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
recombinant His6-tagged enzyme from Escherichia coli by heat treatment at 80°C and nickel affinity chromatography, to over 95% homogeneity
recombinant His6-tagged enzyme from Escherichia coli by heat treatment for 15 min at 65°C, nickel affinity chromatography, ultrafiltration, and dialysis, the tag is cleaved off by Factor Xa, followed by another step of nickel affinity chromatography