21-42276889-C-T

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BA1

The NM_016818.3(ABCG1):​c.538-6C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0504 in 1,613,966 control chromosomes in the GnomAD database, including 3,295 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (no stars).

Frequency

Genomes: 𝑓 0.040 ( 233 hom., cov: 32)
Exomes 𝑓: 0.051 ( 3062 hom. )

Consequence

ABCG1
NM_016818.3 splice_region, splice_polypyrimidine_tract, intron

Scores

1
1
Splicing: ADA: 0.0002556
2

Clinical Significance

Benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.636
Variant links:
Genes affected
ABCG1 (HGNC:73): (ATP binding cassette subfamily G member 1) The protein encoded by this gene is a member of 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. It is involved in macrophage cholesterol and phospholipids transport, and may regulate cellular lipid homeostasis in other cell types. Six alternative splice variants have been identified. [provided by RefSeq, Jul 2008]

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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=-0.47).
BP6
Variant 21-42276889-C-T is Benign according to our data. Variant chr21-42276889-C-T is described in ClinVar as [Benign]. Clinvar id is 3056609.Status of the report is no_assertion_criteria_provided, 0 stars.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.178 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ABCG1NM_016818.3 linkuse as main transcriptc.538-6C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000398449.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ABCG1ENST00000398449.8 linkuse as main transcriptc.538-6C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_016818.3 P1P45844-4

Frequencies

GnomAD3 genomes
AF:
0.0404
AC:
6142
AN:
152214
Hom.:
232
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00854
Gnomad AMI
AF:
0.0417
Gnomad AMR
AF:
0.0433
Gnomad ASJ
AF:
0.0692
Gnomad EAS
AF:
0.101
Gnomad SAS
AF:
0.188
Gnomad FIN
AF:
0.0266
Gnomad MID
AF:
0.0886
Gnomad NFE
AF:
0.0444
Gnomad OTH
AF:
0.0421
GnomAD3 exomes
AF:
0.0643
AC:
16171
AN:
251430
Hom.:
919
AF XY:
0.0709
AC XY:
9633
AN XY:
135882
show subpopulations
Gnomad AFR exome
AF:
0.00689
Gnomad AMR exome
AF:
0.0483
Gnomad ASJ exome
AF:
0.0713
Gnomad EAS exome
AF:
0.109
Gnomad SAS exome
AF:
0.177
Gnomad FIN exome
AF:
0.0268
Gnomad NFE exome
AF:
0.0462
Gnomad OTH exome
AF:
0.0668
GnomAD4 exome
AF:
0.0514
AC:
75121
AN:
1461634
Hom.:
3062
Cov.:
31
AF XY:
0.0556
AC XY:
40391
AN XY:
727110
show subpopulations
Gnomad4 AFR exome
AF:
0.00809
Gnomad4 AMR exome
AF:
0.0469
Gnomad4 ASJ exome
AF:
0.0710
Gnomad4 EAS exome
AF:
0.0858
Gnomad4 SAS exome
AF:
0.172
Gnomad4 FIN exome
AF:
0.0298
Gnomad4 NFE exome
AF:
0.0421
Gnomad4 OTH exome
AF:
0.0598
GnomAD4 genome
AF:
0.0403
AC:
6145
AN:
152332
Hom.:
233
Cov.:
32
AF XY:
0.0435
AC XY:
3244
AN XY:
74490
show subpopulations
Gnomad4 AFR
AF:
0.00851
Gnomad4 AMR
AF:
0.0432
Gnomad4 ASJ
AF:
0.0692
Gnomad4 EAS
AF:
0.101
Gnomad4 SAS
AF:
0.188
Gnomad4 FIN
AF:
0.0266
Gnomad4 NFE
AF:
0.0444
Gnomad4 OTH
AF:
0.0412
Alfa
AF:
0.0440
Hom.:
99
Bravo
AF:
0.0381
Asia WGS
AF:
0.114
AC:
395
AN:
3478
EpiCase
AF:
0.0516
EpiControl
AF:
0.0543

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

ABCG1-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJul 12, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.47
CADD
Benign
9.1
DANN
Uncertain
0.98

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00026
dbscSNV1_RF
Benign
0.022
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: rs56145149; hg19: chr21-43696999; COSMIC: COSV59202058; API