RHD*01N.22
(ISBT table: RHD negative v4.0)
RHD*01EL.17 - RHD*DEL17
(ISBT table: weak D and Del v5.0)
This entry is an RHD allele.
RHD(Y401X), RHD*1203A, RHD*1203A (Y401*, RHD*01N.22, DEL17), RHD*1203T>A,
Molecular data
Nucleotides:
1203T>A;
Amino acids: Y401*;
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: DEL (last update: Nov. 17, 2019)Reports by D phenotype
Other RH phenotypes: RH:-2,
- RH:-2 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, East European or possible descent (last update: Dec. 22, 2019)Detailed reports
- 0/738 samples with D negative, but C and/or E positive phenotype, screened for RHD specific sequences (in the 5'UTR region, exon 3 and exon 10) in the Austrian (state of Tyrol) population
- 0/104 samples with D negative, but C and/or E positive phenotype, screened for RHD specific sequences (in the 5'UTR region, exon 3 and exon 10) in the Swiss (Bern and the canton of Bern) population
- 0/400 samples with D negative, but C and/or E positive phenotype, screened for RHD specific sequences (in the 5'UTR region, exon 3 and exon 10) in the German (states of Lower Saxony, Saxony- Anhalt, Thuringia, Oldenburg, and Bremen) population
- 1/71 samples with D negative, but C and/or E positive phenotype, screened for RHD specific sequences (in the 5'UTR region, exon 3 and exon 10) in the Russian (Kirov Oblast) population
- 0/333 samples with D negative, but C and/or E positive phenotype, screened for RHD specific sequences (in the 5'UTR region, exon 3 and exon 10) in the Slovenian population
- 0/54 samples with D negative, but C and/or E positive phenotype, screened for RHD specific sequences (in the 5'UTR region, exon 3 and exon 10) in the German (city of Braunschweig and eastern parts of Lower Saxony) population
- 1/96 among almost 3 million blood donations, 621685 had D negative phenotype; 46133 donors were first time donors with D negative phenotype and, when tested, 96 had RHD intron 4 in the German population
- 1/37782 270 women with variant alleles among 37782 women with D negative phenotype, tested by quantitative fetal RHD genotyping designed to detect RHD exons 5 and 7 in the Dutch population
- 2 to 10 /136000 among about 136.000 donors with D negative phenotype, systematically tested for the presence of the RHD gene; the RHD gene was detected in 300 donors in the German population (some samples may overlap with other studies)
Allele or phenotype frequency
Structure mapping
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Links
The Human RhesusBaseGenbank: AJ630385 AJ630386 AJ630387 AJ630388 AJ630389 AJ630390 AJ630391 AJ630392 AJ630393 AJ630394
Erythrogene
References
- International Society of Blood Transfusion et al. International Society of Blood Transfusion (ISBT) allele table Online ressource, 1935. — Online ressource — [RHeference]
- Gassner C et al. Presence of RHD in serologically D-, C/E+ individuals: a European multicenter study. Transfusion, 2005. [Citation] [RHeference]
- Flegel WA et al. Six years' experience performing RHD genotyping to confirm D- red blood cell units in Germany for preventing anti-D immunizations. Transfusion, 2009. [Citation] [RHeference]
- Stegmann TC et al. Frequency and characterization of known and novel RHD variant alleles in 37 782 Dutch D-negative pregnant women. Br J Haematol, 2016. [Citation] [RHeference]
- Wagner F. et al. Results of more than ten years testing of RhD negative first time donors by RHD PCR Transfus Med Hemother, 2019. — Abstract — [RHeference]
- Floch A et al. Comment from Rheference Online ressource, 2020. — Online ressource — [RHeference]
Last update: Dec. 22, 2019