Table 2.

Length of type A, B and C influenza virus 3' and 5' NC sequences

Type A	PB2	PB1	PA	HA	NP	NA	M	NS
3'NC	27	24	24	*	45	**	25	26
5'NC	34	43	58	*	23	**	20	26
*	H1	H2	H3	H5		**	N1	N2
3'NC	32	43	29	28		3'NC	20a	19
5'NC	45	41	32–35	44		5'NC	28	38
Type B	PB2	PB1	PA	HA	NP	NA	M	NS
3'NC	23	21	29	33	58	53	24	42
5'NC	60	89	98	94	101	103	91	30
Type C	PB2	PB1	P3	HEF	NP	M	NS
3'NC	21	17	21	21	29	25	26
5'NC	19	81	32	84	80–102b	30	47

Lengths are in nt, the start and stop codons were excluded.

^a: except for A/WSN/33 which has 19 nt

^b: 80 nt for C/Ann Arbor/1/50, 82 nt for C/California/78, 102 nt for C/JHB/1/66