RHD*2C
(ISBT table: not listed)
This entry is an RHD allele.
RHD(M1T), RHD*2C, RHD*2T>C,
Molecular data
Nucleotides:
2T>C;
Amino acids: M1T;
Hybrid allele encompassing at least one RHCE exon:
no
Comments on the molecular basis:
Extracellular position of one or more amino acid substitutions:
- No RhD protein is expected to be produced. However a DEL or D positive phenotype has been reported (see Phenotype section), implying the contrary. The resulting antigen may have an altered conformation.
Splicing:
Unconventional prediction methods:
Phenotype
Main D phenotype: weak D (last update: Nov. 17, 2019)Reports by D phenotype
Other RH phenotypes: RH:-2, -5,
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: exceptional description(s), Japanese (last update: Dec. 22, 2019)Detailed reports
-
1/45 among 763408 donors, after ruling out partial D phenotypes by using 5 monoclonal anti-D, 75 were considered weak D phenotype and 45 were genotyped Japanese
(1 sample in common with
27183894 ) -
1/226 226 donors considered weak D phenotype, after ruling out partial D phenotypes by using 5 monoclonal anti-D Japanese
(1 sample in common with
26340140 )
Allele or phenotype frequency
Structure mapping
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References
- 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]
- Ogasawara K et al. Weak D alleles in Japanese: a c.960G>A silent mutation in exon 7 of the RHD gene that affects D expression. Vox Sang, 2016. [Citation] [RHeference]
- Floch A et al. Comment from Rheference Online ressource, 2020. — Online ressource — [RHeference]
Last update: Sept. 6, 2019