Biological process  Protein metabolism  Molecular function  Serine-type peptidase activity   Protein   kallikrein B, plasma (Fletcher factor) 1  Gene symbol   KLKB1    Cellular component           Component Extracellular         Experimental evidence      Total number of studies : 15       Peptide sequence Method Platform  Sample  Reference Mass spectrometry Plasma Liu et al. 2007 Mass spectrometry LCQ Duo Serum Gundry et al. 2007 Mass spectrometry Fourier transform ion cyclotron resonance (FT_ICR) Plasma Qian et al. 2010 Mass spectrometry LTQ Orbitrap XL Plasma Panchaud et al. 2009 Mass spectrometry LTQ Orbitrap XL Plasma Yadav et al. 2011 Mass spectrometry LTQ Orbitrap XL Plasma Kang et al. 2010 Mass spectrometry IMS-TOF Plasma Valentine et al. 2006 Mass spectrometry LTQ FT Serum Sennels et al. 2007 Mass spectrometry Agilent 1100 LC/MSD Trap XCT Plus System Plasma Ahrends et al. 2009 Mass spectrometry LTQ FT Plasma Prentice et al. 2010 Mass spectrometry LTQ Plasma Tu et al. 2010 Mass spectrometry LTQ Orbitrap Plasma Shuford et al. 2010 Mass spectrometry MALDI-TOF/TOF Plasma Bortner et al. 2010 Mass spectrometry LTQ Orbitrap Plasma Peng et al. 2011 Mass spectrometry - Plasma Farrah et al. 2011          Multiple reaction monitoring data           Peptide sequence MH+ Sample Number of studies Reference Data not present           Protein concentration             Protein concentration Method Sample Reference 2.6  μg/ml Spectral counting  Plasma Farrah et al. 2011 50  μg/ml -  Plasma Qian et al. 2005 50  μg/ml -  Plasma Gundry et al. 2007           Extracellular vesicle proteins             Sample Isolation  Experimental method Vesiclepedia accession Reference Data not present          Architecture           Domains Motifs PAN   21 - 104 PAN   111 - 194 PAN   201 - 284 PAN   292 - 375 TRYPSIN   391 - 621 SP   1 - 19          External links           HPRD UniProt NetPath  01971  P03952  NetPath_M3818             Protein sequence  NP_000883.2               MILFKQATYF ISLFATVSCG CLTQLYENAF FRGGDVASMY TPNAQYCQMR CTFHPRCLLF SFLPASSIND MEKRFGCFLK DSVTGTLPKV HRTGAVSGHS LKQCGHQISA CHRDIYKGVD MRGVNFNVSK VSSVEECQKR CTSNIRCQFF SYATQTFHKA EYRNNCLLKY SPGGTPTAIK VLSNVESGFS LKPCALSEIG CHMNIFQHLA FSDVDVARVL TPDAFVCRTI CTYHPNCLFF TFYTNVWKIE SQRNVCLLKT SESGTPSSST PQENTISGYS LLTCKRTLPE PCHSKIYPGV DFGGEELNVT FVKGVNVCQE TCTKMIRCQF FTYSLLPEDC KEEKCKCFLR LSMDGSPTRI AYGTQGSSGY SLRLCNTGDN SVCTTKTSTR IVGGTNSSWG EWPWQVSLQV KLTAQRHLCG GSLIGHQWVL TAAHCFDGLP LQDVWRIYSG ILNLSDITKD TPFSQIKEII IHQNYKVSEG NHDIALIKLQ APLNYTEFQK PICLPSKGDT STIYTNCWVT GWGFSKEKGE IQNILQKVNI PLVTNEECQK RYQDYKITQR MVCAGYKEGG KDACKGDSGG PLVCKHNGMW RLVGITSWGE GCARREQPGV YTKVAEYMDW ILEKTQSSDG KAQMQSPA