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UniProt functional annotation for Q972K9 | ||
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| UniProt code: Q972K9. |
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| Organism: | |
Sulfurisphaera tokodaii (strain DSM 16993 / JCM 10545 / NBRC 100140 / 7) (Sulfolobus tokodaii). |
| Taxonomy: | |
Archaea; Crenarchaeota; Thermoprotei; Sulfolobales; Sulfolobaceae; Sulfurisphaera. |
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| Function: | |
Catalyzes the methyl esterification of L-isoaspartyl residues in peptides and proteins that result from spontaneous decomposition of normal L-aspartyl and L-asparaginyl residues. It plays a role in the repair and/or degradation of damaged proteins. {ECO:0000256|ARBA:ARBA00003862}. |
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| Catalytic activity: | |
Reaction=[protein]-L-beta-isoaspartate + S-adenosyl-L-methionine = [protein]-L-beta-isoaspartate alpha-methyl ester + S-adenosyl-L- homocysteine; Xref=Rhea:RHEA:12705, Rhea:RHEA-COMP:12143, Rhea:RHEA- COMP:12144, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789, ChEBI:CHEBI:90596, ChEBI:CHEBI:90598; EC=2.1.1.77; Evidence={ECO:0000256|ARBA:ARBA00000846}; |
| Similarity: | |
Belongs to the methyltransferase superfamily. L- isoaspartyl/D-aspartyl protein methyltransferase family. {ECO:0000256|ARBA:ARBA00005369}. |
Annotations taken from UniProtKB at the EBI.