Table 1.
Ang Species | Amino Acid Sequence | Theoretical Mass (m/z) | Observed Mass (m/z) |
---|---|---|---|
Ang II | DRVYIHPF | 1,046.2 | 1,046.2 |
Ang III | RVYIHPF | 931.1 | 931.0 |
Ang-(1–7) | DRVYIHP | 899.0 | 899.0 |
Ang IV | VYIHPF | 774.9 | <LOD |
Ang-(1–5) | DRVYI | 664.8 | <LOD |
Ang-(1–4) | DRVY | 551.6 | 551.6 |
Ang-(5–8) | IHPF | 512.6 | <LOD |
Ang, angiotensin; m/z, mass-to-charge ratio; LOD, limit of detection (∼5 ng).