DIIIa - phenotypic description
(ISBT table: not listed)
This entry is a phenotypic characterization.
DIIIa - phenotypic description,
Molecular data
Nucleotides:
Amino acids:
Hybrid allele encompassing at least one RHCE exon:
NA
Comments on the molecular basis:
- "A mutation in codon 223 but not codon 233 is indicative of DIIIa, DOL, and DAR phenotypes (…) A mutation in codon 152 differentiates DIIIa from DOL and DAR phenotypes."
- see also "Additional comments" section on the RhesusBase http://www.rhesusbase.info/RHDDIIItype5.htm
- no explicit molecular typing, assumed phenotypic description
- molecular typing was not performed for all samples
Extracellular position of one or more amino acid substitutions:
Splicing:
Unconventional prediction methods:
Phenotype
Main D phenotype: NA (last update: Aug. 30, 2020)Reports by D phenotype
Other RH phenotypes: RH:-2, -3, 12, -23, -30, -40, -50, 54,
Serology with monoclonal anti-D
- with cross-testing table between different D categories
- 8 samples tested; reactive (2+ to 4+) with LOR-15C9 Ab
- 0 monoclonal IgG anti-D non-reactive with variant, out of 5 monoclonal anti-D tested; one polyclonal anti-D was also tested (Table 1)
- epitope pattern (Table 1)
- 1 sample tested; positive reaction with all of 142 anti-D tested (Ab not detailed) (Table 1)
- 1 sample tested; positive reaction with all of 127 anti-D tested (Ab not detailed) (Table 1)
Antigen Density (Ag/RBC)
More phenotype data
Rhesus Similarity Index
Haplotype
Main CcEe phenotype association: ce (last update: Feb. 18, 2020)Alloimmunization
Antibodies in carriers
Antibody specificity: D (RH1)
Summary: not relevant, see types or alleles (last update: Aug. 25, 2020)Detailed information
-
Lomas C et al. Transfus Med (1993)
(Table 2)
- Ab specificity: D (RH1)
- Number (auto- or allo-):
- Number listed as allo-: 4 (or 2?)
- 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): cross-matching of RBCs and anti-D made by individuals of different phenotypic categories
- Transfusion history:
- Pregnancy history:
- Anti-D Ig history:
- Context:
- Hemolytic consequences:
- Comment:
TIPPETT P et al. Vox Sang (1962)
Tippett P et al. J Immunogenet (1990) (see
-
Lomas-Francis C et al. Immunohematology (2007)
- Ab specificity: D (RH1)
- Number (auto- or allo-):
- Number listed as allo-: 1
- Number listed as auto-:
- Number of carriers of the allele assessed:
- DAT: positive (post-transfusion)
- Autologuous control:
- Elution:
- Autoadsorption:
- Titer:
- Was anti-LW excluded?:
- Other antibodies detected: anti-hrB, -E, -M, and a warm autoantibody
- Cross matches (with Ab and RBCs from different partial types):
- Transfusion history: unknown
- Pregnancy history:
- Anti-D Ig history:
- Context: African American woman with SCD (S-beta thalassemia)
- Hemolytic consequences: delayed hemolytic reaction after transfusion of several incompatible units
- Comment:
-
Lomas-Francis C et al. Immunohematology (2007)
- Ab specificity: D (RH1)
- Number (auto- or allo-):
- Number listed as allo-: 1
- Number listed as auto-:
- Number of carriers of the allele assessed:
- DAT:
- Autologuous control:
- Elution:
- Autoadsorption:
- Titer:
- Was anti-LW excluded?:
- Other antibodies detected: anti-hrB, -C, -E, and -K
- Cross matches (with Ab and RBCs from different partial types):
- Transfusion history: several transfusions
- Pregnancy history:
- Anti-D Ig history:
- Context: African American man with SCD
- Hemolytic consequences:
- Comment:
Antibodies in D negative recipients
Alloimmunization in recipients: expected to be possible, see phenotype data
Reports
Summary: described and defined, in Blacks (last update: Feb. 18, 2020)Structure mapping
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Slab | Ctrl+Second | Not Available |
References
- TIPPETT P et al. Observations on subdivisions of the Rh antigen D. Vox Sang, 1962. [Citation] [RHeference]
- Tippett P et al. Monoclonal antibodies against Rh and Rh related antigens. J Immunogenet, 1990. [Citation] [RHeference]
- Lomas C et al. Further complexities of the Rh antigen D disclosed by testing category DII cells with monoclonal anti-D. Transfus Med, 1993. [Citation] [RHeference]
- Jones JW et al. Quantitation of Rh D antigen sites on weak D and D variant red cells by flow cytometry. Vox Sang, 1996. [Citation] [RHeference]
- Tippett P et al. The Rh antigen D: partial D antigens and associated low incidence antigens. Vox Sang, 1996. [Citation] [RHeference]
- Cartron JP et al. Tentative model for the mapping of D epitopes on the RhD polypeptide. Transfus Clin Biol, 1996. [Citation] [RHeference]
- Reid ME et al. Use of LOR-15C9 monoclonal anti-D to differentiate erythrocytes with the partial DvI antigen from those with either partial D antigens or weak D antigens. Immunohematology, 1998. [Citation] [RHeference]
- Reid ME et al. DAK, a new low-incidence antigen in the Rh blood group system. Transfusion, 2003. [Citation] [RHeference]
- Lomas-Francis C et al. A confusion in antibody identification: anti-D production after anti-hrB. Immunohematology, 2007. [Citation] [RHeference]
- Wagner FF and Flegel WA et al. The Human RhesusBase Online ressource, 2011. — Online ressource — [RHeference]
- Lomas-Francis C et al. DIII Type 7 is likely the original serologically defined DIIIb. Transfusion, 2012. [Citation] [RHeference]
- Floch A et al. Comment from Rheference Online ressource, 2020. — Online ressource — [RHeference]
Last update: June 9, 2020