TABLE 1

Analytical data for compounds 1-13

Calculated indicates the theoretical monoisotopic MH+ value. Observed values were assessed by MALDI-TOF in the reflector mode unless otherwise noted.


Peptide

HPLC

Mass Spectroscopy
Retention Time
Purity
Calculated
Observed
min % m/z
Rat metastin 20.35 99.95 5833.91 5833.12a
rKp-10 19.35 99.07 1318.62 1318.54
hkp-10 20.64 99.83 1302.63 1302.80
[Ala1]kp-10 18.37 99.99 1226.60 1226.52
[Ala2]kp-10 19.43 99.66 1275.62 1275.65
[Ala3]kp-10 16.40 99.96 1203.58 1203.63
[Ala4]kp-10 19.84 99.89 1275.62 1275.54
[Ala5]kp-10 19.62 99.80 1302.63 1302.54
[Ala6]kp-10 16.62 99.70 1242.59 1242.68
[Ala7]kp-10 19.33 99.99 1332.64 1332.79
[Ala8]kp-10 17.92 99.78 1276.58 1276.38
[Ala9]kp-10 19.97 99.62 1233.56 1233.25
[Ala10]kp-10
17.77
99.85
1226.60
1226.43
  • a Assessed by MALDI-TOF in the linear mode.