RHD*01N.18
(ISBT table: RHD negative v4.0)
This entry is an RHD allele.
RHD(Y269X), RHD*807G, RHD*807G (Y269*, RHD*01N.18 ), RHD*807T>G,
Phenotype
Main D phenotype: D negative (DEL excluded) (last update: July 28, 2020)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: Dec. 9, 2020)Alloimmunization
Antibodies in carriers
Antibody specificity: D (RH1)
Summary: D negative, at risk for anti-D (last update: Aug. 25, 2020)Detailed information
Antibodies in D negative recipients
Alloimmunization in recipients: not expected, see phenotype data
Reports
Summary: rare descriptions, possible European descent (last update: Dec. 22, 2019)Detailed reports
- 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
- 1/351 out of 351 prenatal patients with discrepant D phenotyping results (population tested 608486 patients) Canada
- 1/3147 3147 D negative samples screened for RHD intron 3/intron 4, exon 7 and 3'UTR specific sequences, 36 were positive in Portuguese population (mainly central Portugal)
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]
- 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]
- J. Pereira et al. RHD Null Alleles in the Portuguese Population Transfusion Medicine, 2009. — Abstract — [RHeference]
- Clarke G et al. Resolving variable maternal D typing using serology and genotyping in selected prenatal patients. Transfusion, 2016. [Citation] [RHeference]
- Floch A et al. Comment from Rheference Online ressource, 2020. — Online ressource — [RHeference]
Last update: Nov. 16, 2019