. 2016 Sep 1;161(12):3355–3363. doi: 10.1007/s00705-016-3030-5

Table 4.

Analysis of partial sequences of amino acids of the S1 gene from hen and embryo samples. The amino acid sequence is based on the reference Ma5 strain (KU736747). The amino acid inserts in the S1 sequence of the IBV variants in the cecal tonsils (KU736762) are highlighted in bold

Strain	Codons 120-121	Codons 140-150
Ma5^a	---	NGQ-----LFY
KU736754^b	---	NGQ-----LFY
KU736756^c	---	NGQ-----LFY
KU736760^d	---	NGQ-----LFY
KU736758^e	---	NGQ-----LFY
KU736762^f	KV	QGNTGPSGLFY

^aMA5 vaccine (KU736747)

^bIntestine

^cKidney

^dOviduct

^eChorioallantoic fluid of embryonated eggs after 18 days of incubation

^fCecal tonsils