1. Basic Information

Name:	STA5B_HUMAN
Accession#:	P51692
Description:	Signal transducer and activator of transcription 5B
AA Number:	787
Sequence:	1 51 101 151 201 251 301 351 401 451 501 551 601 651 701 751    MAVWIQAQQL QGEALHQMQA LYGQHFPIEV RHYLSQWIES QAWDSVDLDN PQENIKATQL LEGLVQELQK KAEHQVGEDG FLLKIKLGHY ATQLQNTYDR CPMELVRCIR HILYNEQRLV REANNGSSPA GSLADAMSQK HLQINQTFEE LRLVTQDTEN ELKKLQQTQE YFIIQYQESL RIQAQFGPLA QLSPQERLSR ETALQQKQVS LEAWLQREAQ TLQQYRVELA EKHQKTLQLL RKQQTIILDD ELIQWKRRQQ LAGNGGPPEG SLDVLQSWCE KLAEIIWQNR QQIRRAEHLC QQLPIPGPVE EMLAEVNATI TDIISALVTS TFIIEKQPPQ VLKTQTKFAA TVRLLVGGKL NVHMNPPQVK ATIISEQQAK SLLKNENTRN DYSGEILNNC CVMEYHQATG TLSAHFRNMS LKRIKRSDRR GAESVTEEKF TILFESQFSV GGNELVFQVK TLSLPVVVIV HGSQDNNATA TVLWDNAFAE PGRVPFAVPD KVLWPQLCEA LNMKFKAEVQ SNRGLTKENL VFLAQKLFNN SSSHLEDYSG LSVSWSQFNR ENLPGRNYTF WQWFDGVMEV LKKHLKPHWN DGAILGFVNK QQAHDLLINK PDGTFLLRFS DSEIGGITIA WKFDSQERMF WNLMPFTTRD FSIRSLADRL GDLNYLIYVF PDRPKDEVYS KYYTPVPCES ATAKAVDGYV KPQIKQVVPE FVNASADAGG GSATYMDQAP SPAVCPQAHY NMYPQNPDSV LDTDGDFDLE DTMDVARRVE ELLGRPMDSQ WIPHAQS

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

2. Protein Separation

Sample Preparation: 1 million cells from cell line K526 were lysed in an immuno-precipitation buffer containing 20 mM Tris-HCL (pH 7.6), 150 mM NaCl, 1mN EDTA, 0.1% NP-40, 100ug/ml PMSF, and 1mM sodium vanadate. Cell lysates were vortexed on ice for 30 minutes and spun to clear. The Supernatant was then incubated with protein A, and then with ABL1 specific antibody that has already been bound to protein A. Samples were incubated overnight, washed and then the beads were boiled in gel loading buffer and run for 1 hour on an SDS page gel (12% Bis-Tris). Resulting gel bands were then excised, reduced, alkylated and digested overnight with trypsin.

 

3. LC-MS/MS Data

ENLPGR

    No LC-MS/MS for this peptide.

AVDGYVKPQIK

 

IQAQFGPLAQLSPQER

 

4. LC-MRM Screening

Peptides screening: Peptides and transitions for analysis were selected from previous LC-MS/MS experiments. The results were screened for those with the highest specificity and the most intense transitions.