Waters MassPREP ADH Digestion Standard - Manual

[ Care and Use ManUal ]
MassPREP ADH Digestion Standard
MassPREP aDH DigEstion stanDaRD
i. intRoDuction
The MassPREP ™ protein digestion standard was prepared by digesting yeast
alcohol dehydrogenase (ADH, SwissProt P00330) with sequencing grade
Trypsin. The sample was reduced and alkylated (iodoacetamide) prior to diges-
tion. The resulting digest does not contain any undigested protein, Trypsin,
alkylation/reduction agents, or very hydrophilic components. Each batch of
ADH digestion standard is prepared under strict quality control criteria con-
firmed on the included certificate of analysis. Protein digestion standards may
be used for a variety of applications, including evaluation of HPLC columns,
evaluation of mass spectrometry and chromatography instrumentation perfor-
mance, mass spectrometer calibration, or as an HPLC standard.
ii. stoRagE anD stability
The lyophilized powder is stable at room temperature until the expiration
date printed on the label. Once reconstituted in high purity water or in 0.%
trifluoroacetic acid in water, the solution is stable for one week when stored at
8 °C. Stability can be extended by freezing samples at -20 °C.
Note: The contamination of sample with endo- and exopeptidase enzymes may
cause rapid sample degradation.
iii. REconstitution of MassPREP PRotEin DigEstion
stanDaRD foR HPlc
The protein digestion standards were prepared by digesting nmole of
protein. For HPLC column evaluation, the recommended sample dilution is
00 μl of 0.% trifluoroacetic acid in water, or 0.-% formic acid in water.
Injection volumes and mass loads are shown in Table .
Table 1: Recommended Mass Load for HPLC Columns Evaluation
* Calculated for peptide with molecular weight of 1500 g/mol
iV. REconstitution of MassPREP PRotEin DigEstion
stanDaRD foR MalDi Ms
. Dissolve protein digestion standard in .0 mL of 0.% trifluoroacetic
acid/0 % acetonitrile (v/v). The concentration of peptides in this stock
solution is ~ pmol/μl.
2. Dispense 20 μl aliquots in 0.5 ml eppendorf tube and store at -20 °C
prior to use.
3. Thaw the content of a tube and add 80 μl of deionized water. The
concentration of this working solution is 00 fmol/μl.
4. Mix μl of standard with μl of MALDI matrix (high quality MassPREP
MALDI Matrix is recommended, see table below). Deposit μl on the
MALDI target for analysis.
V. oRDERing infoRMation
Note: Each MassPREP Digestion standard is sufficient for a thousand or more
MALDI MS analyses.
MSDS information: Waters Digestion Standards contain various non hazard-
ous peptides in powder form. They are for laboratory use only; solely for
purposes of scientific experimentation, analysis, research or development.
Waters Digestion Standards should be used only as directed and in accor-
dance with good laboratory practice. All Waters Digestion Standards are non
hazardous as defined by OSHA’s Hazard Communication Standard, 29 CFR
90.200(c) and Appendix A and B, and are thus exempt from the require-
ments of the Hazard Communication Standard, including the requirement to
supply MSDSs.
Reconstitution
volume (µl)
Column i.d.
(mm)
Injection
volume
(µl)
Aver. injected
mass per peptide
(pmole)
00 4.6 75.0 750.0
00 2. 5.6 56.3
00 .0 3.5 35.4
00 0.32 0.4 3.6
00 0.8 0. .
00 0.075 0.02 0.2
Part Number Product Description Qty per pack
86002325 MassPREP Digestion Standard, Enolase
86002326 MassPREP Digestion Standard, Phosphorylase b
86002327 MassPREP Digestion Standard, Bovine Hemoglobin
86002328 MassPREP Digestion Standard, Alcohol Dehydrogenase
86002329 MassPREP Digestion Standard, Bovine Serum Albumin
86002330 MassPREP Digestion Standard Kit (one of each digestion std.) 5
8600233 MassPREP MALDI Matrix CHCA 5
86002333 MassPREP MALDI Matrix DHB 5