List of potential tyrosine-sulfated proteins in cow RPE.

Sixteen proteins were identified in cow RPE by MALDI-MS analysis of SDS-PAGE gel slices of PSG2 immunoaffinity column eluent. The asterisks mark those proteins at 75 and 50 kD, shown in Figure 2C. NCBI reference sequence database ID numbers (RefSeq#) and percent sequence coverage (coverage %) are also indicated for each protein. Inclusion in this table does not confirm that the protein is tyrosine-sulfated. Some of the proteins may be isolated by the affinity column as a result of their interaction with sulfated proteins.