Table 3.

Exon-intron junctions of human (Hs) XRRA1, murine (Mm) Xrra1 and rat (Rn) Xrra1

Exon No.		Exon Size (bp)	5' Splice Donor	Intron No.	Intron Size (bp)a	3' Splice Acceptor
1	Hs XRRA1	128	GGCTCAGGAGgtaaagccataa			ttgcactcacagGGAGGCATCT
	Mm Xrra1	133	GGCTCAGGAGgtattgtcacag			ctgtgcccacagGGAGGCATCC
	Rn Xrra1	133	GGCTCAGGAGgtattatcacag			ctgtgcccacagGGAGGCATCT
2	Hs XRRA1	219	GACCGGACAGgtgagtgacacc	1	687	ccttaattgaagACTGAAGAAG
	Mm Xrra1	206	GACCGCACAGgtgagctatggc		685	ccttaattgaagACTGAAGAAG
	Rn Xrra1	206	GACCGCACAGgtgagcccgccc		-	tcttaattgaagACTGAAGAAG
3	Hs XRRA1	43	AACCTCAGAGgtaggaactgac	2	43215	cttctgtttcagAGGTTGTGTT
	Mm Xrra1	44	AACCTCAGAGgtaggaggacct		4118	tttctgtttcagAGGTTGTGTT
	Rn Xrra1	44	AACCTCAGAGgtaggaggaacc		-	tttatgtttcagAGGTTGTGTT
4	Hs XRRA1	127	CTACAACAAGgtgactttctgc	3	3696	cttctttctaagACAACCAAGA
	Mm Xrra1	126	CTACAACAAGgtaactgctttg		3706	tttcctctgaagACAGCCAAGG
	Rn Xrra1	126	CTACAACAAGgtaaactgcttt		-	ttccctcctaagACAACCAAGG
5	Hs XRRA1	96	CATACACGAGgtatagtgcccg	4	7073	cattcattagagATCGCAAAAG
	Mm Xrra1	94	CACACACGAGgtatggtggcca		4393	cattcattagagATCGCAAAAG
	Rn Xrra1	94	CACACACGAGgtatggtggcca		-	tgcactttccagATCGCAAAGG
6	Hs XRRA1	123	ATCATGGAAGgtagggcttcca	5	779	tcatggcaccagGGGTCCCTCC
	Mm Xrra1	116	GTCACGGAAGgtaagccttcca		736	ccttcataccagGGATCCACAC
	Rn Xrra1	116	ATCGCGGAAGgtaagccttcca		-	ccctcacaccagGGATCCCACC
7	Hs XRRA1	351	CCTGACCCAGgtacctgtatcc	6	2622	tctccatgacagGTGAAAAGCG
	Mm Xrra1	324	CCTGACCCAGgtgacagccccc		2256	tctctcatccagGTGAAGACCT
	Rn Xrra1	324	CCTGACCCAGgtgacagccccc		-	tctctcatacagGTGAAAACCT
8	Hs XRRA1	202	GAGCCAAAGGgtatgtgagggc	7	2839	tcctgggcacagGTGAGTGAAC
	Mm Xrra1	196	GAGCCAAAGGgtatgggattaa		1421	ttcctggcacagGTGAATGAGC
	Rn Xrra1	199	GAGCCAAAGGgtacgggattaa		-	ttcctggcacagGTGAATGAGC
9	Hs XRRA1	117	AGAGAAACGGgtaaacatccag	8	788	ttcttgccctagGGAATCCAGA
	Mm Xrra1	116	GGAGAAGAGGgtaagcacttca		594	tgcatcctctagGCATCCAGAA
	Rn Xrra1	116	AGAGAAGAGGgtaagcacttca		-	tgcatcctccagGCATCCAGAA
10	Hs XRRA1	108	GCTCCACTAGgtacggctctgc	9	207	accttctgccagGCCCAGAGAA
	Mm Xrra1	106	GCTCCACTGGgtatggtgccag		169	tgcatcctctagGCCGGGAGGA
	Rn Xrra1	106	GCTCCACTGGgtatggtgccag		-	cgtttgtgccagGTTGCGAGGA
11	Hs XRRA1	484		10	397	cttttcctgcagGTGCTGTCCT
	Mm Xrra1	445			294	tcattcctgtagGCACTGTGTT
	Rn Xrra1	445			-	tcatccctgtagGCGCTGTGTG

^aThe intron sizes of Rn Xrra1 gene could not be determined since the sequencing of rat genomic clone CH230-188L13 (GenBank AC127923) containing the gene was in progress. Nevertheless, their splicing sites can be identified, thus the exon sizes are also known.