Table 3.
Accession numbers for the amino-acid sequences of B7-family proteins from selected species
| Protein | Human | Mouse | Dog | Cat | Cow | Rabbit | Sheep | Pig | Chicken |
| B7.1 | NP_005182 | NP_033985 | NP_001003147 | BAB11687 | CAA71081 | I46690 | AAR27296 | NP_999252 | NP_990415 |
| B7.2 | NP_787058 | NP_062261 | NP_001003146 | BAB11688 | CAC13140 | I46691 | AAR89183 | NP_999387 | XP_425516 |
| ICOS-L | NP_056074 | NP_056605 | N/A | N/A | N/A | N/A | N/A | N/A | XP_413702 |
| PD-L1 | NP_054862 | NP_068693 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| PD-L2 | NP_079515 | NP_067371 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| B7-H3 | NP_079516VC, CAE47548VCVC | NP_598744 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| B7-H4 | NP_078902 | NP_848709 | N/A | N/A | N/A | N/A | N/A | N/A | XP_416546, XP_416760 |
Data obtained from the NCBI Protein Refseq Database [48]. N/A: not available. See the database entries under these accession numbers for well-annotated sequences and references to many of the original publications defining the genes.