major histocompatibility complex (human), class I, B73 | ||
| Alleles | B*7301 | |
| Structure (See HLA-B) | ||
| Symbol(s) | HLA-B | |
| EBI-HLA | B*7301 | |
| Locus | chr.6 6p21.31 | |
HLA-B73 (B73) is an HLA-B serotype. The serotype identifies the HLA-B*7301 gene product. Part of B*7301 is similar to the HLA-B22 family, however part resembles the domains seen in other apes. B73 is more common in Western Indian Ocean, Mediterranean and Africa. (For terminology help see: HLA-serotype tutorial)
B*73:01 is one of the four B alleles that reacts with neither Bw4 nor Bw6. The others are B*18:06, B*46:01, and B*55:03.
| B*73 | B73 | Other | Sample |
| allele | % | % | size (N) |
| 7301 | 22 | 69 | 106 |
| freq | ||
| ref. | Population | (%) |
| Parsi (Karachi, Pakistan) | 4.9 | |
| United Arab Emirates | 2.0 | |
| Italy | 2.0 | |
| Seri (Sonora, Mexico) | 1.5 | |
| Purépecha (Michoacán, Mexico) | 1.5 | |
| Jews (Israel) (*2 studies) | 1.2 | |
| Beti (Cameroon) | 1.1 | |
| Casablanca (Morocco) | 0.9 | |
| Tbilisi (Georgia) | 0.9 | |
| Mossi (Burkina Faso) | 0.9 | |
| Bulgaria | 0.9 | |
| Sudanese | 0.8 | |
| Tuva (Russia) (2) | 0.8 | |
| Oman | 0.8 | |
| Bamileke (Cameroon) | 0.6 | |
| Pathan (Pakistan) | 0.5 | |
| Khalkha (Mongolia) | 0.5 | |
| Druse Arabs (Israel) | 0.5 | |
| Baloch (Iran) | 0.5 | |
| Manchester (England) | 0.5 | |
| Algeria (1) | 0.5 | |
| Turkey | 0.4 | |
| Amman (Jordan) | 0.3 | |
| Shona (Harare, Zimbabwe) | 0.2 | |
| Republic of Macedonia | 0.2 | |
| Nandi (Kenya) | 0.2 | |
| Luo (Kenya) | 0.2 | |
| Campania (Italy) | 0.2 | |
| Greece | 0.2 |