HLA-B49

major histocompatibility complex (human), class I, B49
Alleles B*4901, B*4902, B*4903
Structure (See HLA-B)
Symbol(s) HLA-B
EBI-HLA B*4901
B*4902
B*4903
Locus chr.6 6p21.31

HLA-B49 (B49) is an HLA-B serotype. B49 is a split antigen from the B21 broad antigen, the sister serotype B50.[1] The serotype identifies the more common HLA-B*50 gene products.[2] (For terminology help see: HLA-serotype tutorial)

Serotype

B49 and B21 serotype recognition of some more common HLA B*49 alleles[3]
B*49 B49 B21 Sample
allele % % size (N)
4901 94 1 3002

Allele distribution

HLA B*4901 frequencies
freq
ref. Population (%)
[4] Portugal North8.7
[4] Spain Basque Gipuzkoa Province6.1
[4] Madeira5.9
[4] Cameroon Yaounde5.4
[4] Morocco Nador Metalsa (Berber)5.1
[4] Kenya Nandi4.6
[4] Sudanese4.3
[4] Portugal South4.1
[4] Tunisia Tunis4.0
[4] India Jalpaiguri Toto3.8
[4] Senegal Niokholo Mandenka3.7
[4] Uganda Kampala3.7
[4] Spain Eastern Andalusia3.5
[4] Tunisia3.5
[4] Georgia Tibilisi Kurds3.4
[4] Spain Catalonia Girona3.4
[4] Italy North (1)3.3
[4] Cameroon Beti3.2
[4] Israel Ashkenazi and Non Ashkenazi Jews3.2
[4] Guinea Bissau3.1
[4] France South East2.7
[4] Israel Arab Druse2.5
[4] Mali Bandiagara2.5
[4] Jordan Amman2.4
[4] Tunisia Ghannouch2.4
[4] Georgia Tibilisi Georgians2.3
[4] Saudi Arabia Guraiat and Hail2.2
[4] Cameroon Bamileke1.9
[4] Czech Republic1.9
[4] Georgia Svaneti Svans1.9
[4] Macedonia (4)1.9
[4] Bulgaria1.8
[4] Romanian1.6
[4] Italy Bergamo1.1
[4] Zambia Lusaka1.1
[4] Belgium1.0
[4] China North Han1.0
[4] India Andhra Pradesh Golla1.0
[4] Ireland Northern1.0
[4] South Africian Natal Zulu1.0

References

  1. Hildebrand WH, Madrigal JA, Belich MP, et al. (1992). "Serologic cross-reactivities poorly reflect allelic relationships in the HLA-B12 and HLA-B21 groups. Dominant epitopes of the alpha 2 helix". J. Immunol. 149 (11): 3563–8. PMID 1385528.
  2. Marsh SG, Albert ED, Bodmer WF, et al. (2005). "Nomenclature for factors of the HLA system, 2004". Tissue Antigens 65 (4): 301–69. doi:10.1111/j.1399-0039.2005.00379.x. PMID 15787720.
  3. derived from IMGT/HLA
  4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Middleton D, Menchaca L, Rood H, Komerofsky R (2003). "New allele frequency database: http://www.allelefrequencies.net". Tissue Antigens 61 (5): 403–7. doi:10.1034/j.1399-0039.2003.00062.x. PMID 12753660. External link in |title= (help)
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