Immunogen sequence: NRKEVELIVQ EKPFTVEISP GPRIAAQIGD SVMLTCSVMG CESPSFSWRT QIDSPLSGKV RSEGTNSTLT LSPVSFENEH SYLCTVTCGH KKLEKGIQVE L; Positive Samples: 293T, HeLa; Cellular Location: Membrane, Single-pass type I membrane protein. VCAM-1 is a cell surface