rs1948263947

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_022169.5(ABCG4):​c.745G>A​(p.Gly249Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,892 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G249W) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ABCG4
NM_022169.5 missense

Scores

5
7
4

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.99
Variant links:
Genes affected
ABCG4 (HGNC:13884): (ATP binding cassette subfamily G member 4) The protein encoded by this gene is a member of the ATP-binding cassette (ABC) transporter superfamily. 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). The encoded protein is a member of the White subfamily and plays an important role in cellular cholesterol homeostasis. This protein functions as either a homodimer or as a heterodimer with another ABC subfamily protein such as ABCG1. [provided by RefSeq, Jan 2017]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ABCG4NM_022169.5 linkc.745G>A p.Gly249Arg missense_variant Exon 7 of 15 ENST00000619701.5 NP_071452.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ABCG4ENST00000619701.5 linkc.745G>A p.Gly249Arg missense_variant Exon 7 of 15 1 NM_022169.5 ENSP00000481728.1 Q9H172-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461892
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.97
BayesDel_addAF
Pathogenic
0.40
D
BayesDel_noAF
Pathogenic
0.33
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.56
D;D;D
Eigen
Uncertain
0.58
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Pathogenic
0.98
.;.;D
M_CAP
Benign
0.0024
T
MetaRNN
Uncertain
0.66
D;D;D
MetaSVM
Benign
-0.75
T
MutationAssessor
Benign
-0.24
N;N;N
PrimateAI
Uncertain
0.77
T
Sift4G
Uncertain
0.013
D;D;D
Polyphen
1.0
D;D;D
Vest4
0.74
MutPred
0.43
Gain of MoRF binding (P = 0.0229);Gain of MoRF binding (P = 0.0229);Gain of MoRF binding (P = 0.0229);
MVP
0.80
ClinPred
1.0
D
GERP RS
5.0
Varity_R
0.75
gMVP
0.84

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr11-119027097; API