Table 3.
Observed m/z for labeled peaks in Figure 7
| Sample | Phycobilin binding sites: Cysteine (C), alanine (A) | Observed m/z | Bilin addeda |
|---|---|---|---|
| C50A | A50, C61 | 1153.80634+ 1006.73364+ |
PUB (0%)b Unmodc |
| C82 | 417.54013+, 625.80692+ 370.66602+ |
PEB (76.3%) Unmodd |
|
| C61A | C50, A61 | 1153.78324+ 1006.98384+, 1341.97523+ |
PUB (7.6%) Unmodc |
| C82 | 417.54013+, 625.79442+ 370.66602+ |
PEB (100%) Unmodb |
a
Parenthetical values represent calculated percentage of observed peptides modified by bilin indicated when compared with unmodified peptides. For sample abbreviations, see legend for Figure 6. These results are representative of two independent biological replicates.
b
Not detected.
c
Unmod represents peptides that were unmodified and lack a bilin chromophore.
d
Cys modified by β-mercaptoethanol.