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)

Serotype 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.

+ B73 serotype recognition of B*7301 allele-group gene productsderived from IMGT/HLA B*73 B73 Other Sample allele % % size (N) 7301 22 69 106

B*7301 frequencies + HLA B*7301 frequencies freq ref. Population (%) Parsi (Karachi, Pakistan) 4.9 United Arab Emirates2.0 Italy2.0 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 Bulgaria0.9 Sudanese0.8 Tuva (Russia) (2)0.8 Oman0.8 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 Turkey0.4 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 Greece0.2

References