Sulfation is a common post-translational modification of tyrosine residues in eukaryotes, but has not been observed in yeast and prokaryotes. Sulfation is limited to secretory and transmembrane proteins that have passed the trans-Golgi network, where two membrane-bound tyrosylprotein sulfotransferase enzymes catalyze the transfer of sulfate from adenosine 3’-phosphate 5’-phosphosulfate to the tyrosine phenol. Lit.



Type
Incomplete
pKa1
None
pKa2
None
pKa3
None
NativeCharge
Loss
H
Gain
SO3H
Deltamass
Monoisotopic
79.9568148601848
Average
80.0630020182414
UVSpec
λ
/ nm 		ε
/ M-1 cm-1
214 0
240 0
245 0
250 0
255 0
260 0
265 0
270 0
272 0
274 0
276 0
278 0
280 0
282 0
284 0
286 0
288 0
290 0
292 0
294 0
296 0
298 0
300 0
302 0
304 0
306 0
308 0
310 0
312 0
314 0
316 0
318 0
320 0
H
AA
Y
Pattern