RHD*01W.6 - RHD*weak D type 6
(ISBT table: Weak D and Del v5.0)
This entry is an RHD allele.
RHD(R10Q), RHD*29A, RHD*29A (weak D type 6), RHD*29G>A, weak D type 6,
Molecular data
Phenotype
Main D phenotype: weak D (last update: Dec. 28, 2020)Reports by D phenotype
Other RH phenotypes: RH:
Serology with monoclonal anti-D
Antigen Density (Ag/RBC)
More phenotype data
Haplotype
Main CcEe phenotype association: Ce (last update: Dec. 28, 2020)Alloimmunization
Antibodies in carriers
Antibody specificity: D (RH1)
Summary: no published cases (last update: Dec. 28, 2020)Detailed information
-
Denomme GA et al. Transfusion (2005)
- Ab specificity: D (RH1)
- Number (auto- or allo-): 0
- Number listed as allo-:
- Number listed as auto-:
- Number of carriers of the allele assessed:
- DAT:
- Autologuous control:
- Elution:
- Autoadsorption:
- Titer:
- Was anti-LW excluded?:
- Other antibodies detected:
- Cross matches (with Ab and RBCs from different partial types):
- Transfusion history:
- Pregnancy history:
- Anti-D Ig history:
- Context:
- Hemolytic consequences:
- Comment: lists exposures to standard D antigen and patient blood management for several carriers
Antibodies in D negative recipients
Alloimmunization in recipients: expected to be possible, see phenotype data
Reports
Summary: rare descriptions, mainly in individuals of Eastern Asian descent, or compatible with such descent (last update: Dec. 28, 2020)Detailed reports
- 1/161 random donors with weak D phenotype; DVI samples were excluded by serologic testing in the German population (Southwestern Germany), White (Table 6)
- 0/270 donors with weak D phenotype White, in the German (Northern Germany) population
- 0/146 donors with weak D phenotype White, in the Austrian (Tyrol) population
- 1/7 donors with weak D phenotype Taiwanese
- 0/55 55 discrepant or weak D phenotypes among 33864 multiethnic patients (of African, Asian, Indoasian and European extraction) in the Canadian (Toronto) population
- 1/226 226 donors considered weak D phenotype, after ruling out partial D phenotypes by using 5 monoclonal anti-D Japanese
- 1/129 (hemizygous) donors with weak D phenotype Thai
- 1/353 samples referred for discrepant or weak D typing in the USA population
Allele or phenotype frequency
Structure mapping
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References
- International Society of Blood Transfusion et al. International Society of Blood Transfusion (ISBT) allele table Online ressource, 1935. — Online ressource — [RHeference]
- Wagner FF et al. Molecular basis of weak D phenotypes. Blood, 1999. [Citation] [RHeference]
- Wagner FF et al. Weak D alleles express distinct phenotypes. Blood, 2000. [Citation] [RHeference]
- Müller TH et al. PCR screening for common weak D types shows different distributions in three Central European populations. Transfusion, 2001. [Citation] [RHeference]
- Lin IL et al. Molecular basis of weak D in Taiwanese. Ann Hematol, 2003. [Citation] [RHeference]
- Denomme GA et al. Partial D, weak D types, and novel RHD alleles among 33,864 multiethnic patients: implications for anti-D alloimmunization and prevention. Transfusion, 2005. [Citation] [RHeference]
- Ye SH et al. A comprehensive investigation of RHD polymorphisms in the Chinese Han population in Xi'an. Blood Transfus, 2014. [Citation] [RHeference]
- Isa K et al. Prevalence of RHD alleles in Japanese individuals with weak D phenotype: Identification of 20 new RHD alleles. Vox Sang, 2016. [Citation] [RHeference]
- S Vege et al. RHD Genotyping of Discrepant or Weak D Samples: Over a Year’s Experience. Transfusion, 2017. — Abstract — [RHeference]
- Thongbut J et al. Comprehensive Molecular Analysis of Serologically D-Negative and Weak/Partial D Phenotype in Thai Blood Donors. Transfus Med Hemother, 2020. [Citation] [RHeference]
- Floch A et al. Comment from Rheference Online ressource, 2020. — Online ressource — [RHeference]
- Vege S et al. Impact of RHD genotyping on transfusion practice in Denmark and the United States and identification of novel RHD alleles. Transfusion, 2021. [Citation] [RHeference]
Last update: Dec. 28, 2020