1. Basic Information

Name:	CD44_HUMAN
Accession#:	P16070
Description:	CD44 antigen
AA Number:	742
Sequence:	1 51 101 151 201 251 301 351 401 451 501 551 601 651 701    MDKFWWHAAW GLCLVPLSLA QIDLNITCRF AGVFHVEKNG RYSISRTEAA DLCKAFNSTL PTMAQMEKAL SIGFETCRYG FIEGHVVIPR IHPNSICAAN NTGVYILTSN TSQYDTYCFN ASAPPEEDCT SVTDLPNAFD GPITITIVNR DGTRYVQKGE YRTNPEDIYP SNPTDDDVSS GSSSERSSTS GGYIFYTFST VHPIPDEDSP WITDSTDRIP ATTLMSTSAT ATETATKRQE TWDWFSWLFL PSESKNHLHT TTQMAGTSSN TISAGWEPNE ENEDERDRHL SFSGSGIDDD EDFISSTIST TPRAFDHTKQ NQDWTQWNPS HSNPEVLLQT TTRMTDVDRN GTTAYEGNWN PEAHPPLIHH EHHEEEETPH STSTIQATPS STTEETATQK EQWFGNRWHE GYRQTPREDS HSTTGTAAAS AHTSHPMQGR TTPSPEDSSW TDFFNPISHP MGRGHQAGRR MDMDSSHSTT LQPTANPNTG LVEDLDRTGP LSMTTQQSNS QSFSTSHEGL EEDKDHPTTS TLTSSNRNDV TGGRRDPNHS EGSTTLLEGY TSHYPHTKES RTFIPVTSAK TGSFGVTAVT VGDSNSNVNR SLSGDQDTFH PSGGSHTTHG SESDGHSHGS QEGGANTTSG PIRTPQIPEW LIILASLLAL ALILAVCIAV NSRRRCGQKK KLVINSGNGA VEDRKPSGLN GEASKSQEMV HLVNKESSET PDQFMTADET RNLQNVDMKI GV

*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 100,000 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. 1/4 of the resulting digest was then analyzed on a Thermo Scientific TSQ mass spectrometer.

 

3. LC-MS/MS Data

FAGVFHVEK

 

YGFIEGHVVIPR

 

LVINSGNGAVEDR

 

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.