You can search into the database on a phospho-peptide driven way: write a sequence in the | text field | up here, and then press the |  Search Phospho-peptides | button. You must use the aminoacid 1-letter symbols, and the maximum allowed chain is 25 characters long. You can also use the '*' wildcard for 'one or more' unknown aminoacids, and/or the '?' wildcard for 'only one' unknown aminoacid. The non-phosphorylated aminoacid symbols must be entered using upper case letters. You must only use lower case letters when you want to specify a phosphorylated residue: y, s, t (for phosphorylated forms of Tyrosine, Serine and Threonine).

You can also browse the whole peptide set, without entering any sequence, by pressing the |  Browse All Phospho-peptides | button.

You can search into the database for a phosphorylated protein or sub-set of phosphorylated proteins. Write your search text in the | text field | up this sub-section, and then press the |  Search phosphorylated Proteins | button. For the text-search you can use the UniProt/TrEMBL Accession Numbers (ex.: 'P16070'; 'Q709C8'), the UniProt/TrEMBL ID (ex.: 'MEFV_HUMAN'; 'KPCB_HUMAN') or some part of the UniProt/TrEMBL Description Line (ex.: 'Protein kinase C beta type'; 'Cyclin-K'; 'Retinoblastoma-associated protein'). The maximum allowed text size is 35 characters long. You can also use the '*' wildcard for 'one or more' unknown letters, and/or the '?' wildcard for 'only one' unknown letter. Some useful examples are: 'P16?70' , 'P16*', ' *kinase*'. Remember that all phosphorylated proteins are from human origin.

You can also browse the whole protein set, without entering any text, simply pressing the |  Browse All phosphorylated Proteins | button.