Table 3.

Expression and distribution of mouse NBCn1 variants^a

Nt initial sequence	Tissue	Variants	Accession no.	Colony frequency
MEAD	RT♀b	NBCn1-E	GU386353	3/7
		NBCn1-G	JQ073566	2/7
		NBCn1-I	GU386352	2/7
	Eye	NBCn1-G	JQ073566	8/15
		NBCn1-I	GU386352	4/15
		NBCn1-O	JQ349032	2/15
		NBCn1-P	JQ349031	1/15
	Heart	NBCn1-B	JX254908	5/19
		NBCn1-C	JX254909	1/19
		NBCn1-C.2	JX310364	1/19
		NBCn1-D	JX254910	2/19
		NBCn1-E	GU386353	3/19
		NBCn1-H	JX254911	2/19
		NBCn1-G	JQ073566	5/19
MERF	Skeletal muscle	NBCn1-A	JX254912	15/20
		NBCn1-K	HM624051	5/20
	Ovary	NBCn1-J	HM624050	12/12
	Testis	NBCn1-J	HM624050	2/2c
	Eye	NBCn1-J	HM624050	11/24
		NBCn1-L	JQ344322	1/24
		NBCn1-M	JQ349033	1/24
		NBCn1-N	JQ347261	11/24

^aAll mouse variants were first cloned in the present study.

^bRT♀: female reproductive tract tissues represent the mixture of ovary, uterus and vagina. ^cIn addition to these two clones, we identified 12 others from testis that lack 114 bp (corresponding to the entire exon 21), leading to deletion of TM7 and part of extracellular loop EL4 in the putative TMD. All 14 clones from testis lack cassette II.