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S Kanthaswamy, J Ng, R Oldt, L Valdivia, P Houghton, D G Smith
A much larger sample (N = 2369) was used to evaluate a previously reported distribution of the A, AB and B blood group phenotypes in rhesus and cynomolgus macaques from six different regional populations. These samples, acquired from 15 different breeding and research facilities in the US, were analyzed using a real-time quantitative polymerase chain reaction (qPCR) assay that targets single nucleotide polymorphisms (SNPs) responsible for the macaque A, B and AB phenotypes. The frequency distributions of blood group phenotypes of the two species differ significantly from each other, and significant regional differentiation within the geographic ranges of each species was also observed...
August 11, 2017: HLA
Dong Il Won
BACKGROUND: The technique of reverse sequence-specific oligonucleotide probes (SSOPs) is commonly used in HLA typing. In the conventional method for data analysis (exact pattern matching, EPM), the larger is the number of mismatched probes, the longer the time for final typing assignment. A novel strategy, filtering and scoring (FnS), has been developed to easily assign the best-fit allele pair. MATERIALS AND METHODS: In the FnS method, candidate alleles and allele pairs were filtered based on a 1) subject's ethnicity, and 2) the measured partial reaction pattern with only definitely negative or positive probes...
August 10, 2017: HLA
Xiao-Feng Li, Gui-Ji Li, Xu Zhang, Hua Fan, Jian-Ping Li
HLA-DRB1*11:143 has one nucleotide change from HLA-DRB1*11:01:01 where Aspartic Acid (70) is changed to Glycine.
August 10, 2017: HLA
K L Yang, P Y Lin
One nucleotide substitution at residue 25 of HLA-DRB1*09:01:02:01 results in a novel allele, HLA-DRB1*09:31.
August 10, 2017: HLA
R Condello, A Picardi, M Battarra, M Troiano, M Andreani
HLA - A*02:653 differs from A*02:01:01:01 by a C to T substitution in exon 2.
August 8, 2017: HLA
K L Yang, P Y Lin
One nucleotide substitution at residue 266 of HLA-DRB1*12:02:01:01 results in a new allele, HLA-DRB1*12:67.
August 4, 2017: HLA
Xiao-Yang Zhou, Li-Qun Zhang, Xiao Yao, Xiao-Qin Yang, Jian-Ping Cai
HLA-C*04:277 has one nucleotide difference from HLA-C*04:01:01:01 at position 1034 (G > A).
August 4, 2017: HLA
Ana Castro, Jorge Malheiro, Sandra Tafulo, Leonídio Dias, La Salete Martins, Isabel Fonseca, Idalina Beirão, António Castro-Henriques, António Cabrita
The role of de novo donor-specific anti-HLA antibodies (dnDSA) within the pathways leading to graft failure remains not fully understood. We investigated 56 patients who were transplanted between 2002-2014 with kidney graft failure (cases), for a possible association of development of dnDSA with graft failure. The 56 patients with failed transplants were matched with 56 patients with a functioning graft at present for the variables deceased or living donor, transplant number, transplant year, recipient age and gender, donor age and gender, dialysis vintage time, transplant induction therapy...
August 4, 2017: HLA
Hyun-Jung Choi, Jisu Im, Jun-Hyung Lee, Soo-Hyun Kim, Myung-Geun Shin
The new allele DPB1*519:01 showed one nucleotide difference with DPB1*13:01:01 at codon 234 (GTG/ATG).
August 4, 2017: HLA
Hyun-Jung Choi, Jisu Im, Jun-Hyung Lee, Soo-Hyun Kim, Myung-Geun Shin
The new allele DPB1*518:01 showed one nucleotide difference with DPB1*13:01:01 at codon 124 (CCT/ACT).
August 4, 2017: HLA
J Wang, Y Zhang, Q Li, K Ru, X Wang
HLA-B*27:149 differs from HLA-B*27:04:01 (488C->T, exon 3, A139V).
July 27, 2017: HLA
H-J Choi, J-H Lee, S-H Kim, M-G Shin
One nucleotide insertion between residues 1804 and 1805 of HLA-A*24:02:01:01 results in a new allele, HLA-A*24:02:01:09.
July 25, 2017: HLA
K L Yang, P Y Lin
One nucleotide substitution at residue 998 of HLA-A*11:01:01:01 results in a novel allele, HLA-A*11:263.
July 22, 2017: HLA
J Tang, X Chen, S Liu, X Tian
HLA-B*40:356 differs from B*40:02:01 by only one nucleotide transition, C>A 1040 in exon 6.
July 22, 2017: HLA
Kai Wang, Xiao-Feng Li, Xu Zhang, Feng-Qiu Lin, Jian-Ping Li
HLA-A*24:198 has one nucleotide change from HLA-A*24:02:01 where Aspartic Acid (29) is changed to Asparagine.
July 21, 2017: HLA
M Alarifi, F Al-Amro, A Alalwan, A Al-Turki, H Fakhoury, N Atallah, M Al Muallimi, M Al-Balwi, M ALzahrani, A Alaskar, A Hajeer, D Jawdat
CCR5 is a chemokine receptor that also was found to be used by HIV as a co-receptor for entering target cells. A 32 bp deletion was described in certain people that rendered CCR5 non-functional. The mutant allele CCR5-Δ32 has been shown to prevent HIV infection. In addition, stem cell transplantation with the CCR5-Δ32 homozygous genotype can lead to clearance of HIV infection. In this study, our aim was to investigate the frequency of CCR5-Δ32 mutation in a cohort of stem cell donors from cord blood bank and stem cell donor registry...
July 21, 2017: HLA
M C F da Silva-Malta, P S Rodrigues, L W Zuccherato, F C B de Souza, E M F L Domingues, V R Souza, E Tarazona-Santos, M L Martins
Hematopoietic stem-cell transplantation (HSCT) is currently the only established curative treatment for sickle cell disease (SCD), but is limited by donor availability. Ethnicity is thought to have an impact on the complications experienced by patients that undergo HSCT and on the likelihood of identifying an HLA matched donor. In the present study, we investigated the genomic ancestry and the distribution of HLA allele groups in Brazilian patients with SCD, compared these HLA profiles to worldwide populations and evaluate the availability of HLA-matched donors...
July 21, 2017: HLA
K L Yang, P Y Lin
Two nucleotide replacements within HLA-B*40:01:01 result in the novel allele, HLA-B*40:01:45.
July 20, 2017: HLA
W N Campos, J D Massaro, A L C Martinelli, J A Halliwell, S G E Marsh, C T Mendes-Junior, E A Donadi
The HFE molecule controls iron uptake from gut, and defects in the molecule have been associated with iron overload, particularly in hereditary hemochromatosis. The HFE gene including both coding and boundary intronic regions were sequenced in 304 Brazilian individuals, encompassing healthy individuals and patients exhibiting hereditary or acquired iron overload. Six sites of variation were detected: i) H63D C > G in exon 2, ii) IVS2 (+4) T > C in intron 2, iii) a C > G transversion in intron 3, iv) C282Y G > A in exon 4, v) IVS4 (-44) T > C in intron 4, and vi) a new Guanine deletion (G > del) in intron 5, which were used for haplotype inference...
July 20, 2017: HLA
K L Yang, P Y Lin
One nucleotide replacement at residue 728 of HLA-A*02:03:01 results in a new allele, HLA-A*02:684.
July 20, 2017: HLA
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