RHD*17.02 - RHD*DFR2
(ISBT table: RHD partial D v5.0)
This entry is an hybrid RHD allele.
DFR-2, RHD(M169L,M170R,I172F,S182T,E193K,K198N,T201R), RHD*505C,509G,514T,544A,577A,594T,602G, RHD*D-CE(4)-D, RHD*D-CE(4)-D (DFR2, RHD*17.02), RHD-RHCE(4)-RHD,
Molecular data
Nucleotides:
505A>C; 509T>G; 514A>T; 544T>A; 577G>A; 594A>T; 602C>G;
Amino acids: M169L; M170R; I172F; S182T; E193K; K198N; T201R;
Hybrid allele encompassing at least one RHCE exon:
RHD-RHCE(4)-RHD
Comments on the molecular basis:
Extracellular position of one or more amino acid substitutions:
Splicing:
Unconventional prediction methods:
Phenotype
Main D phenotype: variable/discrepant (last update: May 4, 2020)Reports by D phenotype
Other RH phenotypes: RH:-3, -4,
Serology with monoclonal anti-D
Antigen Density (Ag/RBC)
More phenotype data
Rhesus Similarity Index
Haplotype
Main CcEe phenotype association: Ce (last update: Jan. 8, 2021)ce | Ce | cE | CE | |
---|---|---|---|---|
ce | 0 | 6 | 0 | 0 |
Ce | 1 | 4 | 0 | |
cE | 0 | 0 | ||
CE | 0 |
Reports by CcEe phenotype
Reports by allele association
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: several descriptions, in various populations (last update: June 16, 2020)Detailed reports
- 5 samples reported by a German lab from Ulm, Baden-Württemberg
- 1/163 selected variants included for the development of a genotyping assay mainly in the Dutch population (samples may have been included in other studies)
- 11/37782 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
- 1/200 donors with D negative phenotype, tested by MPLA Chinese, Southern Han
- 1/223 donors with D negative phenotype initially, found to have D antigen expression (67 of the 223 samples of the cohort) or samples referred with discrepant or weak D typing, or discrepancies with previous typings, or anti-D in D positive individuals (156 of the 223 samples of the cohort) in the Indian population
- 4/231 231 donors with weak D phenotype in the Argentinean population (Northwestern Argentina)
- 1/45 among 132479 donors screened, 45 had weak D phenotype in the northeastern Chinese Liaoning Province population
- 1 hemizygote among 278 samples selected for the development of nonspecific quantitative next-generation sequencing. (non-random samples, may have been reported in other studies)
Allele or phenotype frequency
Structure mapping
Movement | Mouse Input | Touch Input | ||
---|---|---|---|---|
Rotation | Primary Mouse Button | Single touch | ||
Translation | Middle Mouse Button or Ctrl+Primary | Triple touch | ||
Zoom | Scroll Wheel or Second Mouse Button or Shift+Primary | Pinch (double touch) | ||
Slab | Ctrl+Second | Not Available |
References
- Avent ND et al. The rhesus blood group system: insights from recent advances in molecular biology. Transfus Med Rev, 1999. [Citation] [RHeference]
- von Zabern I et al. IVS5-38del4 deletion in the RHD gene does not cause a DEL phenotype: relevance for RHD alleles including DFR-3. Transfusion, 2007. [Citation] [RHeference]
- Flegel WA et al. D variants at the RhD vestibule in the weak D type 4 and Eurasian D clusters. Transfusion, 2009. [Citation] [RHeference]
- Silvy M et al. Weak D and DEL alleles detected by routine SNaPshot genotyping: identification of four novel RHD alleles. Transfusion, 2011. [Citation] [RHeference]
- Daniels G et al. Variants of RhD--current testing and clinical consequences. Br J Haematol, 2013. [Citation] [RHeference]
- Haer-Wigman L et al. RHD and RHCE variant and zygosity genotyping via multiplex ligation-dependent probe amplification. Transfusion, 2013. [Citation] [RHeference]
- Ba A et al. RH diversity in Mali: characterization of a new haplotype RHD*DIVa/RHCE*ceTI(D2). Transfusion, 2015. [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]
- Ji YL et al. RHD genotype and zygosity analysis in the Chinese Southern Han D+, D- and D variant donors using the multiplex ligation-dependent probe amplification assay. Vox Sang, 2017. [Citation] [RHeference]
- Fichou Y et al. Molecular basis of weak D expression in the Indian population and report of a novel, predominant variant RHD allele. Transfusion, 2018. [Citation] [RHeference]
- Trucco Boggione C et al. Characterization of RHD locus polymorphism in D negative and D variant donors from Northwestern Argentina. Transfusion, 2019. [Citation] [RHeference]
- Zhang X et al. Molecular and computational analysis of 45 samples with a serologic weak D phenotype detected among 132,479 blood donors in northeast China. J Transl Med, 2019. [Citation] [RHeference]
- Stef M et al. RH genotyping by nonspecific quantitative next-generation sequencing. Transfusion, 2020. [Citation] [RHeference]
- Floch A et al. Comment from Rheference Online ressource, 2020. — Online ressource — [RHeference]
Last update: Jan. 8, 2021