RHD*01W.1.1 - RHD*weak D type 1.1
(ISBT table: Weak D and Del v5.0)
This entry is an RHD allele.
RHD(L18V,V270G), RHD*52C>G,809T>G, RHD*52G,809G, RHD*52G,809G (weak D type 1.1), weak D type 1.1,
Molecular data
Hybrid allele encompassing at least one RHCE exon:
no
Comments on the molecular basis:
Extracellular position of one or more amino acid substitutions:
Splicing:
Unconventional prediction methods:
Phenotype
Main D phenotype: weak D (last update: Nov. 17, 2019)Reports by D phenotype
Other RH phenotypes: RH:-3,
- RH:-3 inferred from the reported RHCE phenotypes of the carriers
Serology with monoclonal anti-D
Antigen Density (Ag/RBC)
More phenotype data
Rhesus Similarity Index
Haplotype
Main CcEe phenotype association: Ce (last update: Aug. 15, 2020)Alloimmunization
Antibodies in carriers
Antibody specificity: D (RH1)
Summary: no published cases (last update: Nov. 17, 2019)Detailed information
Antibodies in D negative recipients
Alloimmunization in recipients: expected to be possible, see phenotype data
Reports
Summary: few descriptions, in Caucasian Europeans or possible European descent (last update: Dec. 22, 2019)Detailed reports
- 7/23 121022 donors tested: 201 had weak D phenotype and, among those, 23 very weak D phenotype German
- 3/100 donors with weak D phenotype Australia
- 1/351 out of 351 prenatal patients with discrepant D phenotyping results (population tested 608486 patients) Canada
- 0/256 samples with RHD c.809T>G mutation (typical of RHef00238), subtypes excluded in the French population (Western France)
- 1/7 donors with D negative phenotype (out of donor population 22000), C or E positive (leaves: 233 donors) and amplification of RHD exon 10 (leaves:7) Danish
- 0/191 among 191 samples with weak D expression or unclear D phenotype within 44,743 donors and 8,604 patients tested in the Austrian population, Upper Austria
Allele or phenotype frequency
- 0.15 121022 donors tested: 201 had weak D phenotype and, among those, 23 very weak D phenotype Lower Saxony (Germany)
- 1/5330 estimated minimal population frequency (1/11359 to 1/2711; 95% confidence interval [CI]; Poisson distribution) Lower Saxony (Germany)
- 1/17289 estimated minimal population frequency (1/36841 to 1/8792; 95% confidence interval [CI]; Poisson distribution) German
Structure mapping
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Translation | Middle Mouse Button or Ctrl+Primary | Triple touch | ||
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Slab | Ctrl+Second | Not Available |
References
- International Society of Blood Transfusion et al. International Society of Blood Transfusion (ISBT) allele table Online ressource, 1935. — Online ressource — [RHeference]
- Arce MA et al. Molecular cloning of RhD cDNA derived from a gene present in RhD-positive, but not RhD-negative individuals. Blood, 1993. [Citation] [RHeference]
- Doescher A et al. Weak D type 1.1 exemplifies another complexity in weak D genotyping. Transfusion, 2005. [Citation] [RHeference]
- Polin H et al. Effective molecular RHD typing strategy for blood donations. Transfusion, 2007. [Citation] [RHeference]
- Christiansen M et al. RHD positive among C/E+ and D- blood donors in Denmark. Transfusion, 2010. [Citation] [RHeference]
- Clarke G et al. Resolving variable maternal D typing using serology and genotyping in selected prenatal patients. Transfusion, 2016. [Citation] [RHeference]
- McGowan EC et al. Diverse and novel RHD variants in Australian blood donors with a weak D phenotype: implication for transfusion management. Vox Sang, 2017. [Citation] [RHeference]
- Raud L et al. Weak D type 1, 2 and 3 subtype alleles are rare in the Western French population. Transfus Med, 2019. [Citation] [RHeference]
- Floch A et al. Comment from Rheference Online ressource, 2020. — Online ressource — [RHeference]
Last update: Aug. 18, 2019