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About BGvar
BGvar is a comprehensive compilation of human blood group alleles belonging to International Society of Blood Transfusion (ISBT) approved human blood group systems. The resource integrates relevant data from a range of public sources, encompassing a total of 43 human group systems (updated till August, 2021), 345 antigens, 1700 approved alleles. BGvar also enlists about 1706 blood group alleles predicted from 1000 Genomes Project and compiled from literature reports. The compiled variants are systematically annotated for their HGVS nomenclature, Global Allele Frequencies and corresponding clinical significance collated from literature evidences.
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dbSNP ID rs1008708453 rs28399653
History of discovery :
Antigen Type :
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Expression status :
Molecular status :
Amino acid sequence :
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Disease associations :
General function of the gene :
Related transfusion complications :
Types of antibodies produced :
Number of antigens :
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Antigen List :
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ISBT Antigen Numbers :
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ISBT approved allele count :
Number of predicted and curated blood group alleles :
LRG ID :
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LRG Status :
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Genomic Source :
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Genomic length :
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LRG curated Genomic Coordinates(hg38) :
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LRG curated Genomi c Coordinates(hg19) :
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NCBI Genomic Coordinates includes flanking regions :
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ENSEMBL Genomic Coorodinates :
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LRG Transcript ID :
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Identical Transcript Source RefSeq :
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Identical Transcript Source Ensembl :
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Transcript Length :
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Transcript Coordinates :
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Identical Protein Source RefSeq :
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Identical Protein Source Ensembl :
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Protein Length :
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Comments Remarks :
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References :
Reference links :
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Variant Distribution :
  • ISBT Approved Alleles
  • Predicted and curated alleles
Updates on LRG status of Blood group genes now available
Last updated : 31/08/2021
Number of Human blood group systems : 43
Number of approved blood group antigens : 345
Number of ISBT approved blood group alleles : 1700
Number of predicted and curated blood group alleles : 1706
Please let us know your suggestions, comments and variants at vinods@igib.in

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We sincerely acknowledge the human blood group terminologies and allele information provided by ISBT - Blood Group