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Information on EC 6.3.2.B23 - 3-formyl-tyrosine ligase
for references in articles please use BRENDA:EC6.3.2.B23
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preliminary BRENDA-supplied EC number
EC Tree 6 Ligases
6.3 Forming carbon-nitrogen bonds
6.3.2 Acid—amino-acid ligases (peptide synthases)
6.3.2.B23 3-formyl-tyrosine ligase
The expected taxonomic range for this enzyme is: Pseudoalteromonas tunicata
Reaction Schemes
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FtyB, more
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REACTION 
REACTION DIAGRAM
COMMENTARY 
ORGANISM
UNIPROT
LITERATURE
ATP + 3-formyl-L-tyrosine + L-threonine = 3-formyl-L-tyrosyl-L-threonine + ADP + phosphate
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Highest Expressing Human Cell Lines
Cell Line Links
EXTERNAL LINKS (specific for EC-Number 6.3.2.B23)
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Release 2026.1 (March 2026)
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