rs8176741

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP7BA1

The ENST00000538324.2(ABO):​c.654C>T​(p.His218=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0917 in 1,588,890 control chromosomes in the GnomAD database, including 9,425 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as no classification for the single variant (no stars).

Frequency

Genomes: 𝑓 0.12 ( 1298 hom., cov: 33)
Exomes 𝑓: 0.089 ( 8127 hom. )

Consequence

ABO
ENST00000538324.2 synonymous

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.194
Variant links:
Genes affected
ABO (HGNC:79): (ABO, alpha 1-3-N-acetylgalactosaminyltransferase and alpha 1-3-galactosyltransferase) This gene encodes proteins related to the first discovered blood group system, ABO. Variation in the ABO gene (chromosome 9q34.2) is the basis of the ABO blood group, thus the presence of an allele determines the blood group in an individual. The 'O' blood group is caused by a deletion of guanine-258 near the N-terminus of the protein which results in a frameshift and translation of an almost entirely different protein. Individuals with the A, B, and AB alleles express glycosyltransferase activities that convert the H antigen into the A or B antigen. Other minor alleles have been found for this gene. [provided by RefSeq, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP7
Synonymous conserved (PhyloP=-0.194 with no splicing effect.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.245 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ABONM_020469.3 linkuse as main transcriptc.654C>T p.His218= synonymous_variant 8/8 NP_065202.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ABOENST00000538324.2 linkuse as main transcriptc.654C>T p.His218= synonymous_variant 8/95 ENSP00000483018 A2

Frequencies

GnomAD3 genomes
AF:
0.115
AC:
17529
AN:
151920
Hom.:
1296
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.159
Gnomad AMI
AF:
0.0800
Gnomad AMR
AF:
0.0740
Gnomad ASJ
AF:
0.134
Gnomad EAS
AF:
0.183
Gnomad SAS
AF:
0.256
Gnomad FIN
AF:
0.137
Gnomad MID
AF:
0.0791
Gnomad NFE
AF:
0.0798
Gnomad OTH
AF:
0.105
GnomAD3 exomes
AF:
0.119
AC:
24772
AN:
207772
Hom.:
2086
AF XY:
0.127
AC XY:
14330
AN XY:
112824
show subpopulations
Gnomad AFR exome
AF:
0.170
Gnomad AMR exome
AF:
0.0571
Gnomad ASJ exome
AF:
0.121
Gnomad EAS exome
AF:
0.185
Gnomad SAS exome
AF:
0.263
Gnomad FIN exome
AF:
0.137
Gnomad NFE exome
AF:
0.0775
Gnomad OTH exome
AF:
0.105
GnomAD4 exome
AF:
0.0892
AC:
128163
AN:
1436852
Hom.:
8127
Cov.:
74
AF XY:
0.0948
AC XY:
67607
AN XY:
712938
show subpopulations
Gnomad4 AFR exome
AF:
0.166
Gnomad4 AMR exome
AF:
0.0569
Gnomad4 ASJ exome
AF:
0.125
Gnomad4 EAS exome
AF:
0.181
Gnomad4 SAS exome
AF:
0.260
Gnomad4 FIN exome
AF:
0.135
Gnomad4 NFE exome
AF:
0.0680
Gnomad4 OTH exome
AF:
0.103
GnomAD4 genome
AF:
0.115
AC:
17543
AN:
152038
Hom.:
1298
Cov.:
33
AF XY:
0.120
AC XY:
8883
AN XY:
74322
show subpopulations
Gnomad4 AFR
AF:
0.159
Gnomad4 AMR
AF:
0.0741
Gnomad4 ASJ
AF:
0.134
Gnomad4 EAS
AF:
0.183
Gnomad4 SAS
AF:
0.257
Gnomad4 FIN
AF:
0.137
Gnomad4 NFE
AF:
0.0798
Gnomad4 OTH
AF:
0.104
Alfa
AF:
0.0810
Hom.:
1041
Bravo
AF:
0.106
Asia WGS
AF:
0.197
AC:
683
AN:
3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
6.6
DANN
Benign
0.86
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs8176741; hg19: chr9-136131461; COSMIC: COSV71743504; API