Immunogen sequence: MTEEVDFLGQ DSDGGSEEVV LTPAELIERL EQAWMNEKFA PELLESKPEI VECVMEQLEH MEE Highest antigen sequence identity to the following orthologs: Mouse - 89%, Rat - 89%. The yeast heterotetrameric GINS complex is made up of Sld5, Psf1 (GINS1), Psf2