Immunogen sequence: NITFEELGAL LEIPAAKAEK IASQMITEGR MNGFIDQIDG IVHFETREAL PTWDKQIQSL CFQVNNLLEK ISQTAPEWTA QAMEAQMAQ. This gene encodes one of eight subunits composing COP9 signalosome, a highly conserved protein complex that functions as an important r