Table I.

Genomic organization of Sulf genes

	HSulf-1		MSulf-1		HSulf-2		MSulf-2
Exon	Size	Amino acids	Size	Amino acids	Size	Amino acids	Size	Amino acids
	bp		bp		bp		bp
1	280	5′-UTR	255	5′-UTR	569	5′-UTR	141a	5′-UTR
2	95	5′-UTR	95	5′-UTR	275	5′-UTR, 1–58	267	5′-UTR, 1–58
3	73	5′-UTR	73	5′-UTR	240	59–138	240	59–138
4	232	5′-UTR, 1–57	231	5′-UTR, 1–57	152	139–189	152	139–189
5	240	58–137	240	58–137	170	190–246	170	190–246
6	152	138–188	152	138–188	151	247–296	151	247–296
7	170	189–257	170	189–257	176	297–355	176	297–355
8	151	246–295	151	246–295	129	356–398	129	356–398
9	176	296–354	176	296–354	57	399–417	57	399–417
10	129	355–397	129	355–397	130	418–460	130	418–460
11	57	398–416	57	398–416	196	461–525	211	461–530
12	130	417–459	130	417–459	229	526–602	229	532–607
13	217	460–531	217	460–531	97	603–634	97	608–639
14	256	532–617	253	531–616	95	635–666	95	640–671
15	97	618–649	97	617–648	60	667–686	60	672–691
16	95	650–681	95	649–680	170	687–742	170	692–747
17	66	682–703	66	681–702	143	743–790	143	748–795
18	176	704–761	176	703–760	124	791–831	124	796–836
19	143	762–809	143	761–808	34	832–843	34	837–848
20	124	810–850	124	809–849	54	844–861	54	849–866
21	34	851–862	34	850–861	986	862–870, 3′-UTR	902	867–875, 3′-UTR
22	1546	863–871, 3′-UTR	1566	862–870, 3′-UTR

^aExon 1 derived from the 5′- end of EST AW210030 (nt 24–164).