Properdin Factor B (Bf) Polymorphism in Saudi Arabs

Klouda, P. T.; Ollier, William; Hilali, A.A. Al; Bacchus, Robby

doi:10.1159/000153478

Cited by 4 publications

(4 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…BfF is more frequent and BfS less frequent in Saudi Arabs. The frequencies of these alleles in Saudi Arabs lie between those reported for Caucasoids and Negroids (Larsen et al 1981, Klouda et al 1983, Mauff et al 1976, Scherz et al 1977. A prominent feature of this Saudi Arab population is the high frequency of BfS0.7 allele.…”

Section: Factor B (Bf)mentioning

confidence: 52%

See 1 more Smart Citation

HLA polymorphisms in Saudi Arabs

et al. 1985

View full text Add to dashboard Cite

The HLA‐A, ‐B, ‐C, ‐DR, Bf and GLO phenotypes of 109 unrelated Saudi Arab males have been determined. HLA‐A and ‐B antigen frequencies were compared with data reported for European Caucasoids and various Arab populations. Most similarities in antigen frequencies were seen between Saudi Arab and Iraqi populations. A high frequency of Bw50 was observed in Saudi Arabs. The frequencies of HLA‐DR antigens in Saudi Arabs were compared to European Caucasoids. HLA‐DR7 was at high frequency in Saudi Arabs. Linkage disequilibria between alleles of HLA loci was examined. Many instances of previously reported antigen associations were seen in Saudi Arabs, together with a number of associations which have not been described elsewhere. HLA‐Cw6‐Bw50‐DR7‐BfS0.7 is suggested as being a common haplotype in Saudi Arabs.

show abstract

Section: Factor B (Bf)mentioning

confidence: 52%

“…This frequency is the highest reported for a "rare" Bf allotype in any population studied SO far. The results of a larger study of the Bf polymorphism in Saudi Arabs including the present sample is published elsewhere (Klouda et al 1984).…”

Section: Factor B (Bf)mentioning

confidence: 99%

HLA polymorphisms in Saudi Arabs

et al. 1985

View full text Add to dashboard Cite

show abstract

“…However, other populations have yet to be extensively studied and little data are available for comparison. Previous studies have demonstrated major differences in HLA class I, I1 and Ill, gene polymorphisms between Nigerian and Caucasoid populations (Klouda et al, 1983;Okoye et al. 1985).…”

Section: Introductionmentioning

confidence: 92%

Absence of Tap 2d in Yoruba Nigerians

Awomoyi¹,

Donn²,

Davies³

et al. 1995

Int J Immunogenetics

View full text Add to dashboard Cite

We have characterized TAP allele frequencies in a panel of 71 Yoruba Nigerians using ARMS-PCR. With the exception that TAP 2D was absent in Nigerians, TAP 2 allele frequencies in this population were found to be similar to those in a UK white population. HLA-DR4 also was found to be at a low frequency in Yoruba Nigerians (1.4%). This may reflect the absence of TAP 2D in Nigerians as DR4 and TAP 2D are in linkage disequilibrium in UK Caucasoids. The most frequent TAP 1 allele in Yoruba Nigerians was TAP 1A (49%). However, this value will be an underestimate as TAP1 alleles could not be unequivocally assigned in 41% of subjects using the ARMS-PCR methodology.

show abstract

“…Few data are at present available on the BF and C3 polymorphisms in Ar abic populations [5][6][7][8][9] and none on the C4 polymorphism. The aim of our investiga tion was to study the BF, C3 and C4 poly morphisms in the Tunisian population and to compare the allele frequencies with those of other populations.…”

mentioning

confidence: 99%

C3, BF and C4 Polymorphisms in Tunisians

Ayed

Gorgi²

1990

Hum Hered

View full text Add to dashboard Cite

The C3, BF, C4A and C4B polymorphisms were studied in a Tunisian population sample. The allelic frequencies for C3 were S = 0.844 and F = 0.148, and for BF, S = 0.535, F = 0.331, S07 = 0.075 and F1 = 0.041. The most frequent C4 alleles were A3 and B1 followed in a decreasing order by A2, B2 and the A and B null alleles. The results indicate that the Tunisian population is intermediate between the Caucasian and Arab populations with some trace admixture of African Blacks.

show abstract

Properdin Factor B (Bf) Polymorphism in Saudi Arabs

Cited by 4 publications

References 7 publications

HLA polymorphisms in Saudi Arabs

HLA polymorphisms in Saudi Arabs

Absence of Tap 2d in Yoruba Nigerians

C3, BF and C4 Polymorphisms in Tunisians

Contact Info

Product

Resources

About