The enzyme, characterized from humans, catalyses the stereoselective formation of the (2S,3R)-hydroxy-L-arginine stereoisomer. So far the enzyme has been shown to act on two substrates - the 40S ribosomal protein S6 (RPS6), which is hydroxylated at R137, and, at a lower activity, RCCD1, a protein involved in chromatin stability, which is hydroxylated at R141. Even though the same stereoisomer is produced by the bacterial EC 1.14.11.47, [50S ribosomal protein L16]-arginine 3-hydroxylase, the two enzymes do not exhibit any cross-reactivity on their respective ribosomal protein substrates.
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The expected taxonomic range for this enzyme is: Homo sapiens
The enzyme, characterized from humans, catalyses the stereoselective formation of the (2S,3R)-hydroxy-L-arginine stereoisomer. So far the enzyme has been shown to act on two substrates - the 40S ribosomal protein S6 (RPS6), which is hydroxylated at R137, and, at a lower activity, RCCD1, a protein involved in chromatin stability, which is hydroxylated at R141. Even though the same stereoisomer is produced by the bacterial EC 1.14.11.47, [50S ribosomal protein L16]-arginine 3-hydroxylase, the two enzymes do not exhibit any cross-reactivity on their respective ribosomal protein substrates.
JMJD5 catalyses stereoselective C-3 hydroxylation of arginine residues in sequences from human regulator of chromosome condensation domain-containing protein 1 (RCCD1) and ribosomal protein S6 (RPS6)
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CRYSTALLIZATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
structures of N-terminally truncated (aa 153-416 and aa 183-416) constructs and in complex with substrate RPS6. The JMJD5 active site contains a metal centre, which is octahedrally coordinated by an HXD..H motif, the 2-oxoglutarate oxalyl group and a water molecule, which is likely replaced by a dioxygen during catalysis
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Enzyme Nomenclature
1.14.11.73 [protein]-arginine 3-hydroxylase
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