FUNCTION: Catalyzes the O-sulfation of tyrosine residues within acidic motifs of polypeptides, using 3'-phosphoadenylyl sulfate (PAPS) as cosubstrate. {ECO:0000269|PubMed:9733778}....
                        FUNCTION: Catalyzes the O-sulfation of tyrosine residues within acidic motifs of polypeptides, using 3'-phosphoadenylyl sulfate (PAPS) as cosubstrate. {ECO:0000269|PubMed:9733778}.
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                        GO - Biological processes (BP): 
                        3'-phosphoadenosine 5'-phosphosulfate metabolic process [GO:0050427]; peptidyl-tyrosine sulfation [GO:0006478]...
                        3'-phosphoadenosine 5'-phosphosulfate metabolic process [GO:0050427]; peptidyl-tyrosine sulfation [GO:0006478]
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                        GO - Molecular function (MF): 
                        protein homodimerization activity [GO:0042803]; protein-tyrosine sulfotransferase activity [GO:0008476]; sulfotransferase activity [GO:0008146]...
                        protein homodimerization activity [GO:0042803]; protein-tyrosine sulfotransferase activity [GO:0008476]; sulfotransferase activity [GO:0008146]
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                        GO - Cellular component (CC): 
                        endoplasmic reticulum [GO:0005783]; Golgi apparatus [GO:0005794]; Golgi membrane [GO:0000139]; integral component of membrane [GO:0016021]...
                        endoplasmic reticulum [GO:0005783]; Golgi apparatus [GO:0005794]; Golgi membrane [GO:0000139]; integral component of membrane [GO:0016021]
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