CXCL13 GI:5453577 chemokine (C-X-C motif) ligand 13 (B-cell chemoattractant) 1 mkfistslll mllvsslspv qgvlevyyts lrcrcvqess vfiprrfidr 50 51 iqilprgngc prkeiivwkk nksivcvdpq aewiqrmmev lrkrssstlp 100 101 vpvfkrkip