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rs387906870

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP5

The NM_004827.3(ABCG2):c.791_792del(p.Leu264HisfsTer14) variant causes a frameshift change. The variant allele was found at a frequency of 0.0000434 in 1,613,998 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000043 ( 0 hom. )

Consequence

ABCG2
NM_004827.3 frameshift

Scores

Not classified

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:2O:1

Conservation

PhyloP100: 6.94
Variant links:
Genes affected
ABCG2 (HGNC:74): (ATP binding cassette subfamily G member 2 (JR blood group)) The membrane-associated protein encoded by this gene is included in the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the White subfamily. Alternatively referred to as a breast cancer resistance protein, this protein functions as a xenobiotic transporter which may play a major role in multi-drug resistance. It likely serves as a cellular defense mechanism in response to mitoxantrone and anthracycline exposure. Significant expression of this protein has been observed in the placenta, which may suggest a potential role for this molecule in placenta tissue. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2012]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 4-88118157-TAA-T is Pathogenic according to our data. Variant chr4-88118157-TAA-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 30388.We mark this variant Likely_pathogenic, oryginal submissions are: {Uncertain_significance=2, Pathogenic=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ABCG2NM_004827.3 linkuse as main transcriptc.791_792del p.Leu264HisfsTer14 frameshift_variant 7/16 ENST00000237612.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ABCG2ENST00000237612.8 linkuse as main transcriptc.791_792del p.Leu264HisfsTer14 frameshift_variant 7/161 NM_004827.3 P1Q9UNQ0-1
ABCG2ENST00000515655.5 linkuse as main transcriptc.791_792del p.Leu264HisfsTer14 frameshift_variant 7/161 Q9UNQ0-2
ABCG2ENST00000650821.1 linkuse as main transcriptc.791_792del p.Leu264HisfsTer14 frameshift_variant 8/17 P1Q9UNQ0-1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152170
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000103
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000279
AC:
7
AN:
251134
Hom.:
0
AF XY:
0.0000295
AC XY:
4
AN XY:
135706
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000529
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000431
AC:
63
AN:
1461828
Hom.:
0
AF XY:
0.0000495
AC XY:
36
AN XY:
727218
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000450
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152170
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000142
Hom.:
0
Bravo
AF:
0.0000416
EpiCase
AF:
0.000327
EpiControl
AF:
0.000119

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:2Other:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingAl Jalila Children's Genomics Center, Al Jalila Childrens Speciality HospitalDec 17, 2022- -
not specified Uncertain:1
Uncertain significance, flagged submissionclinical testingAl Jalila Children's Genomics Center, Al Jalila Childrens Speciality HospitalFeb 07, 2021- -
Uric acid concentration, serum, quantitative trait locus 1;C3280986:Blood group, Junior system Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsMar 01, 2022- -
Blood group, Junior system Other:1
Affects, no assertion criteria providedliterature onlyOMIMJan 15, 2012- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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: rs387906870; hg19: chr4-89039309; API