chr21-42273345-C-G

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_016818.3(ABCG1):ā€‹c.447C>Gā€‹(p.Pro149=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000918 in 1,613,868 control chromosomes in the GnomAD database, including 12 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.0048 ( 6 hom., cov: 33)
Exomes š‘“: 0.00051 ( 6 hom. )

Consequence

ABCG1
NM_016818.3 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.597
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.4).
BP6
Variant 21-42273345-C-G is Benign according to our data. Variant chr21-42273345-C-G is described in ClinVar as [Benign]. Clinvar id is 711761.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.597 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00482 (734/152316) while in subpopulation AFR AF= 0.0168 (699/41558). AF 95% confidence interval is 0.0158. There are 6 homozygotes in gnomad4. There are 351 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 6 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ABCG1NM_016818.3 linkuse as main transcriptc.447C>G p.Pro149= synonymous_variant 4/15 ENST00000398449.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ABCG1ENST00000398449.8 linkuse as main transcriptc.447C>G p.Pro149= synonymous_variant 4/151 NM_016818.3 P1P45844-4

Frequencies

GnomAD3 genomes
AF:
0.00482
AC:
733
AN:
152198
Hom.:
6
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0168
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00151
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:
0.0000588
Gnomad OTH
AF:
0.00382
GnomAD3 exomes
AF:
0.00134
AC:
337
AN:
250862
Hom.:
4
AF XY:
0.00102
AC XY:
138
AN XY:
135716
show subpopulations
Gnomad AFR exome
AF:
0.0184
Gnomad AMR exome
AF:
0.000984
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000980
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000882
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.000512
AC:
748
AN:
1461552
Hom.:
6
Cov.:
31
AF XY:
0.000428
AC XY:
311
AN XY:
727108
show subpopulations
Gnomad4 AFR exome
AF:
0.0185
Gnomad4 AMR exome
AF:
0.000984
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:
0.00000540
Gnomad4 OTH exome
AF:
0.00121
GnomAD4 genome
AF:
0.00482
AC:
734
AN:
152316
Hom.:
6
Cov.:
33
AF XY:
0.00471
AC XY:
351
AN XY:
74486
show subpopulations
Gnomad4 AFR
AF:
0.0168
Gnomad4 AMR
AF:
0.00150
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00378
Alfa
AF:
0.000853
Hom.:
1
Bravo
AF:
0.00569
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJun 15, 2018- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
ABCG1-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesFeb 20, 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
-0.40
CADD
Benign
6.1
DANN
Benign
0.68

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: rs61735843; hg19: chr21-43693455; API