Volume 5 Issue 1
Jun.  2021
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Xiaoyong Liu, Zhaodi Yi, Ming Gao, Haojun Zhang, Buqiang Wang, Hongjun Gao, Yi Wu, Yuping Chen. Serological and genetic analysis of a rare CisAB01/O01 blood group[J]. Blood&Genomics, 2021, 5(1): 48-52. doi: 10.46701/BG.2021012021101
Citation: Xiaoyong Liu, Zhaodi Yi, Ming Gao, Haojun Zhang, Buqiang Wang, Hongjun Gao, Yi Wu, Yuping Chen. Serological and genetic analysis of a rare CisAB01/O01 blood group[J]. Blood&Genomics, 2021, 5(1): 48-52. doi: 10.46701/BG.2021012021101

Serological and genetic analysis of a rare CisAB01/O01 blood group

doi: 10.46701/BG.2021012021101
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  • Corresponding author: Yuping Chen, Jiangsu LIBO Medicine Biotechnology Co., Ltd. No. 78 West Dongsheng Road, Jiangyin, Jiangsu 214400, China. Tel: 0086-510-86990618. E-mail: cff36618@163.com
  • Received Date: 2021-01-11
  • Accepted Date: 2021-03-26
  • Rev Recd Date: 2021-02-18
  • Publish Date: 2021-06-01
  • The paper aims to analyze a rare blood sample in Ganzhou City Hospital with CisAB subtype and explore a feasible pattern for blood typing of rare blood type patients, so as to ensure clinical transfusion safety. The routine serological methods were used for ABO forward and reverse blood typing and the fluorescence real-time PCR technique was used for sample genotyping. A human ABO blood group 6-7 exon sequencing kit was used for sequence analysis. The nucleic acid sequence of the sample was compared with reference sequences. The forward typing results demonstrated that the sample was ABw, RhD positive. The sample exhibited 4+ agglutination with anti-H and anti-AB antibodies. Reverse typing by microcolumn gel method showed an AB result, but the serum sample demonstrated weak agglutination with B cell under room temperature, 4 °C and 37 °C in saline when tested with tube method respectively. The serological results matched with the A2B3 serotype. The fluorescent real-time PCR genotyping results displayed A/O01. The sequence analysis demonstrated deletion of guanine in 261-position 467C>T (heterozygote) and 803G>T (heterozygote) mutation respectively. The mutation caused the A glycosyltransferase peptide chain to change from proline to leucine (P156L) at 156 and from glutamate to alanine (G268A) at 268. The result demonstrated that the sample's genotype was CisAB01/O01. The mutation of glycosyltransferase coding gene leads to an abnormal serological reaction pattern. Only by combining the results of genetic analysis can we get the true sample blood type and better ensure the safety of clinical blood transfusion.

     

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