Figure 3. The nucleotide and amino acid sequences of A) the chicken Distal-less (Chdlx-3) and B) the anterior neural fold (Chanf) cDNA fragments isolated from extracted ocular RNA .

The nucleotide and amino acid sequences of A) the chicken Distal-less (Chdlx-3; GenBank accession # U31667) and B) the anterior neural fold (Chanf; GenBank accession # U31800) cDNA fragments isolated from RNA extracted from the presumptive neural retina and the anterior optic cup of stage 22 embryos. Sequences in bold are within the homeobox. Positions of primer sequences used in the study are underlined and the arrows indicate the direction of the primers. Primers 2607 (Hox B) and T7 were used to amplify the homeobox sequences. For chdlx-3, primers 3779 and 4534 (A) and for chanf, primers 3780 and 4659 (B) were used to generate the templates for the probes used for in situ hybridizations and Northern blots.

A
	2607(Hox B)->							 48
	AAG ATC TGG TTT CAA AAC CGC CGC TCC AAG TTC AAG AAG CTC TAC AAG
	 K   I   W   F   Q   N   R   R   S   K   F   K   K   L   Y   K
					3779->			       96
	AAC GGC GAG GTG CCG TTG GAG CAC AGC CCC AAC AAC AGC GAT TCC ATG
	 N   G   E   V   P   L   E   H   S   P   N   N   S   D   S   M
								     144
	GCC TGC AAC GAA GGA ACT GCT TTT GCG GGC GTT GAG GGA CTG CGT GTG
	 A   C   N   E   G   T   A   F   A   G   V   E   G   L   R   V
								     192
	AGG GTT GCG AAG GGA CTG CTC CAC ACC TGC TGC TGT GCA GCC CAC ACC 
	 R   V   A   K   G   L   L   H   T   C   C   C   A   A   H   T
		<-4534				       	     223
	TCT GTC AAT AAA CAC CTT TTG GTC TTT GTT TAA AAA AAA AAA AAA A-T7 
	 S   V   N   K   H   L   L   V   F   V   *



B
	2607(Hox B)->							 48
	AAG ATC TGG TTC CAG AAC CGT CGT GCA AAA CTG AAG AGA TCC CAC CGA
	 K   I   W   F   Q   N   R   R   A   K   L   K   R   S   H   R
					  3780->		       96
	GAA TCA CAG TTT TTA ATG GTG AAA AAT AAT TCC ACC TCC AGC CTG CTA 
	 E   S   Q   F   L   M   V   K   N   N   S   T   S   S   L   L
								     144
	GAG TAG GAG GAA GGA TGG CTT GCC TCG ATA TTA CTA CAA TGG GAC TTG 
	 E   *
								     192
	AAG AAT TAC TGG CAT TGG CTG TAA TGT GTA TTA AAC AAA TGA TTA TGT
								     240
	ATT AAT TAT GGA TTC CAT CCC TAG ATT TGA AAG ATT ATC AAT CCC CCG
								     288
	CTC AAA TTA ACT GTA AAT ATG TGA ACG TAT TGT TAA ACT TAA TTT GCT 
	  <-4659		     				      336
	GGG AGA GGA AAG GTG GAA CTC TCT CCT TAT ATT TTT TTC GAT TTC ATA
				       360
	TTT TGT CCA CGA ACC GGC ACA TTG AAA AAA AAA AAA AAA-T7