1. Basic Information

Name:	AACT_HUMAN
Accession#:	P01011
Description:	Alpha-1-antichymotrypsin
AA Number:	423
Sequence:	1 51 101 151 201 251 301 351 401    MERMLPLLAL GLLAAGFCPA VLCHPNSPLD EENLTQENQD RGTHVDLGLA SANVDFAFSL YKQLVLKAPD KNVIFSPLSI STALAFLSLG AHNTTLTEIL KGLKFNLTET SEAEIHQSFQ HLLRTLNQSS DELQLSMGNA MFVKEQLSLL DRFTEDAKRL YGSEAFATDF QDSAAAKKLI NDYVKNGTRG KITDLIKDLD SQTMMVLVNY IFFKAKWEMP FDPQDTHQSR FYLSKKKWVM VPMMSLHHLT IPYFRDEELS CTVVELKYTG NASALFILPD QDKMEEVEAM LLPETLKRWR DSLEFREIGE LYLPKFSISR DYNLNDILLQ LGIEEAFTSK ADLSGITGAR NLAVSQVVHK AVLDVFEEGT EASAATAVKI TLLSALVETR TIVRFNRPFL MIIVPTDTQN IFFMSKVTNP KQA

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

2. Protein Separation

Sample Preparation: Control urine was processed via ultrafiltration according to Moffitt Proteomics protocol and subjected to in-solution digestion with trypsin, following thermal denaturation, reduction, and alkylation.

 

3. LC-MS/MS Data

EQLSLLDR

    No LC-MS/MS for this peptide.

EIGELYLPK

    No LC-MS/MS for this peptide.

ADLSGITGAR

    No LC-MS/MS for this peptide.

NLAVSQVVHK

 

ITLLSALVETR

 

4. LC-MRM Screening

Peptides screening: Peptides were chosen in Skyline with preference given to tryptic sequences observed in the NIST Human LC-MS/MS library; for such peptides, the 5 most abundant y ions were automatically chosen. Additional peptides were chosen with preference given to sequences between 8 - 15 amino acids long, with no missed cleavages, and with no methionines. Fragment ions were chosen to represent the largest y ions, with attention to the presence of P, D, E, and H residues in the sequence.