>sp|P31793|ENV_FRSFB Glycoprotein 42 OS=Friend spleen focus-forming virus GN=env MEGPAFSKPLKDKINPWGPLIVLGILIRAGVSVQRDSPHQVFNVTWRVTNLMTGQTANAT SLLGTMTDAFPKLYFDLCDLIGNDWDETRLGCRTPGEGKRARTFDLYVCPGHTVPTGCGG PREGYCGKWGCETTGQAYWKPSSSWDLISLKRGNTPKDRGPCYDSSVSSGVQGATPGGRC NPLVLKFTDAGKKASWDAPKVWGLRLYRSTGTDPVTRFSLTRQVLNIGPRVPIGPNPVIS DQLPPSRPAQIMLPRPPQPPPPGTASIVPETAPPSQQPGTRDRLLNLVNKAYQALNLTSP DKTQECWLCLVSRPPYYEGVAVLGTNSNHTTLISTIMGLLIILLLLLILLLWTLHS