The major histocompatibility complex (Mhc) class IIB region has greater genomic structural flexibility and diversity in the quail than the chicken

Table 5 Comparison of nucleotide length of intron and exons among CojaIIB in the Tapasin-BRD2 segment

Coja HT	HT1		HT2	HT3	HT4		HT5
CojaIIB PM2 alleles	Coja-DAB1	Coja-DBB1 Coja-DBB101*	CojaII-13 Coja-DBB102*	CojaII-16 Coja-DBB103*	CojaII-01	CojaII-02 Coja-DBB104*	CojaII-14 Coja-DBB105*
exon1	91	91	91	91	91	91	91
intron1	30	88	88	76	146	88	76
exon2	270	270	270	270	270	270	270
intron2	86	86	86	86	86	86	86
exon3	282	282	282	282	282	282	282
intron3	95	95	95	95	95	95	95
exon4	111	111	111	111	111	111	111
intron4	76	76	76	76	76	77	76
exon5	24	24	24	24	24	24	24
intron5	73	86	73	73	73	73	73
exon6	14	14	14	14	14	14	14
total	1152	1223	1210	1198	1268	1211	1198

ISSN: 1471-2164