1. Basic Information

Name:	SMAD7_HUMAN
Accession#:	O15105
Description:	Mothers against decapentaplegic homolog 7
AA Number:	426
Sequence:	1 51 101 151 201 251 301 351 401    MFRTKRSALV RRLWRSRAPG GEDEEEGAGG GGGGGELRGE GATDSRAHGA GGGGPGRAGC CLGKAVRGAK GHHHPHPPAA GAGAAGGAEA DLKALTHSVL KKLKERQLEL LLQAVESRGG TRTACLLLPG RLDCRLGPGA PAGAQPAQPP SSYSLPLLLC KVFRWPDLRH SSEVKRLCCC ESYGKINPEL VCCNPHHLSR LCELESPPPP YSRYPMDFLK PTADCPDAVP SSAETGGTNY LAPGGLSDSQ LLLEPGDRSH WCVVAYWEEK TRVGRLYCVQ EPSLDIFYDL PQGNGFCLGQ LNSDNKSQLV QKVRSKIGCG IQLTREVDGV WVYNRSSYPI FIKSATLDNP DSRTLLVHKV FPGFSIKAFD YEKAYSLQRP NDHEFMQQPW TGFTVQISFV KGWGQCYTRQ FISSCPCWLE VIFNSR

*Highlighted peptides (with yellow background) have developed assays.
*Green background amino acids are PTMs.

2. Protein Separation

Sample Preparation: Cells from colon caner line HCT 116 were lysed in 8M urea/ 100mM ammonium bicarbonate buffer on ice. The equivalent of 60,000 cells were loaded onto a SDS gel. The protein of interest was excised and ingel digestion with trypsin was performed after reduction and alkylation with TCEP and IAA. 1/6 of the resulting digest was then analyzed on a Thermo Scientific TSQ mass spectrometer.

 

3. LC-MS/MS Data

VFPGFSIK

    No LC-MS/MS for this peptide.

EVDGVWVYNR

    No LC-MS/MS for this peptide.

4. LC-MRM Screening

Peptides screening: Peptides and transitions for analysis were selected using a predictive peptide program. The results were screened for those with the highest specificity and the most intense transitions.