TABLE 3.
GDNF exon 2 alignment of multiple species in reverse orientation
Amino acids (italic type) are represented as a single-letter code, the nucleotides are regular type, and splicing donor sites (GT) are in bold type. N represents sequences unavailable. Together with the start codon information, the new open reading frame introduced by exon 2 is primate-specific.
| Human | G | A | A | A | T | G | G | N | S | N | P | L | S | Q | M |
| Chimp | G | A | A | A | T | G | G | N | S | N | P | L | S | Q | M |
| Gorilla | G | A | A | G | T | G | G | N | S | N | P | L | S | Q | M |
| Orangutan | G | A | A | A | T | G | G | N | S | N | P | L | S | Q | M |
| Rhesus | G | A | A | A | T | G | G | N | S | N | P | L | S | Q | M |
| Baboon | G | A | A | A | T | G | G | N | S | N | P | L | S | Q | M |
| Marmoset | G | A | A | A | T | G | G | N | S | N | P | L | S | Q | I |
| Mouse lemur | G | A | A | A | T | G | G | N | S | N | P | L | S | Q | T |
| Bushbaby | G | A | A | A | T | G | G | K | S | N | P | L | S | Q | M |
| Tree shrew | G | A | A | A | T | G | G | N | S | N | P | L | S | Q | A |
| Mouse | A | A | A | A | T | G | G | S | N | T | P | P | S | Q | I |
| Rat | A | A | A | A | T | G | G | H | S | T | P | L | S | R | I |
| Kangaroo rat | A | A | A | G | G | G | G | H | G | P | P | S | P | Q | G |
| Guinea pig | A | C | G | G | C | C | K | P | P | L | P | L | L | ||
| Rabbit | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N |
| Alpaca | G | A | A | A | T | C | S | D | S | N | P | L | S | Q | M |
| Dolphin | G | A | A | A | T | C | G | N | S | N | P | L | S | Q | R |
| Cow | G | A | A | A | T | C | G | N | C | N | P | L | S | Q | R |
| Horse | G | A | A | A | T | C | S | N | S | D | P | L | S | Q | L |
| Microbat | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N |
| Megabat | G | A | A | A | T | C | G | K | S | N | P | L | S | Q | M |
| Shrew | G | G | A | A | G | G | G | G | R | S | P | L | S | R | M |
| Elephant | G | A | A | A | T | T | G | N | S | N | P | L | S | R | M |
| Rock hyrax | G | A | A | A | T | T | G | K | S | N | P | L | S | Q | I |
| Tenrec | G | A | C | C | C | A | R | N | S | D | P | L | S | P | L |
| Armadillo | G | A | A | A | T | G | G | N | S | N | P | F | S | Q | M |