Table 1.
Amino acid diversity of endothelial cell proteins
| Specific non-Gal antigens* | Gene name | Amino acid identity (%) |
|---|---|---|
| NM_214006.1 | CD9*; tetraspanin | 89.5 |
| NM_213888.1 | CD46*; MCP | 47.4 |
| NM_214170.1 | CD59*; protectin | 48.0 |
| NM_001163406 | PROCR*; EC protein C receptor | 71.2 |
| NM_001005726 | ANAX2* | 98.2 |
| NM_001244330.1 | B4GALNT2 | 75.8 |
| Common endothelial cell proteins | ||
| NM_213816 | CD54; ICAM-1 | 53.6 |
| NM_213891 | CD106; VCAM | 54.9 |
| NM_001001631 | CD102; ICAM-2 | 56.1 |
| NM_214268 | CD62E; E-selectin | 58.2 |
| NM_214086 | CD34 | 64.7 |
| NM_213907 | CD31; PECAM | 71.5 |
| NM_001001649 | CDH5; VE-Cadherin | 78.9 |
| XM_003358192 | SCARF1; acetylated-LDL receptor | 79.3 |
| XM_005667691 | CD36 | 83.0 |
| NM_001083932 | CD51; ITGAV, Vitronectin receptor | 95.0 |
The percent amino acid identity of the porcine protein compared to the human sequence was calculated using the European Molecular Biology Laboratory EMBOSS WATER pairwise protein sequence alignment algorithm. On average these porcine genes show only 71% amino acid identity to the human homolog.
An induced antibody response has been reported to these endothelial cell membrane products after pig-to-baboon heterotopic cardiac xenotransplantation (33).