Spike glycoprotein yana wanzuwa a saman sabon coronavirus kuma yana iya canzawa cikin sauƙi kamar Alpha (B.1.1.7), Beta (B.1.351), Delta (B.1.617.2), Gamma (P.1) da Omicron (B.1.1.529, BA.2, BA.4, BA.5).

Nucleocapsid na kwayar cuta ya ƙunshi furotin na nucleocapsid (N protein a takaice) da kuma RNA. Sunadaran N suna da daidaito sosai, mafi girman kaso a cikin sunadaran tsarin ƙwayoyin cuta kuma suna da matuƙar sauƙin ganewa.

Dangane da siffofin furotin na N, an zaɓi ƙwayoyin rigakafi na furotin na N da ke yaƙi da sabon coronavirus a cikin haɓakawa da tsara kayan gwajin Antigen ɗinmu mai suna "SARS-CoV-2 Antigen Rapid Test (Colloidal Gold)" wanda aka yi niyya don gano ingancin ƙwayoyin cuta na SARS-CoV-2 a cikin samfuran swab na hanci a cikin vitro ta hanyar gano ƙwayoyin cuta na N.

Wato, ga nau'in glycoprotein mai saurin canzawa kamar Alpha (B.1.1.7), Beta (B.1.351), Delta (B.1.617.2), Gamma (P.1) da Omicron (B.1.1.529, BA.2, BA.4, BA.5). Ba zai shafi aikin SARS-CoV-2 Antigen Rapid Test (Colloidal Gold) da kamfaninmu ya samar ba.