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GeneBe

21-42225699-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_016818.3(ABCG1):​c.71C>T​(p.Thr24Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000138 in 1,613,202 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00059 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000091 ( 0 hom. )

Consequence

ABCG1
NM_016818.3 missense

Scores

3
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.77
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 Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.011157304).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ABCG1NM_016818.3 linkuse as main transcriptc.71C>T p.Thr24Met missense_variant 2/15 ENST00000398449.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ABCG1ENST00000398449.8 linkuse as main transcriptc.71C>T p.Thr24Met missense_variant 2/151 NM_016818.3 P1P45844-4

Frequencies

GnomAD3 genomes
AF:
0.000581
AC:
88
AN:
151426
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00204
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000659
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:
0.0000295
Gnomad OTH
AF:
0.000484
GnomAD3 exomes
AF:
0.000175
AC:
44
AN:
251350
Hom.:
0
AF XY:
0.000155
AC XY:
21
AN XY:
135818
show subpopulations
Gnomad AFR exome
AF:
0.00215
Gnomad AMR exome
AF:
0.0000867
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000131
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000910
AC:
133
AN:
1461658
Hom.:
0
Cov.:
31
AF XY:
0.0000798
AC XY:
58
AN XY:
727106
show subpopulations
Gnomad4 AFR exome
AF:
0.00179
Gnomad4 AMR exome
AF:
0.000134
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000696
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000477
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.000587
AC:
89
AN:
151544
Hom.:
0
Cov.:
32
AF XY:
0.000581
AC XY:
43
AN XY:
73990
show subpopulations
Gnomad4 AFR
AF:
0.00206
Gnomad4 AMR
AF:
0.0000658
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000295
Gnomad4 OTH
AF:
0.000479
Alfa
AF:
0.0000955
Hom.:
0
Bravo
AF:
0.000552
ESP6500AA
AF:
0.00318
AC:
14
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000264
AC:
32
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.000164
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsOct 02, 2023The c.71C>T (p.T24M) alteration is located in exon 2 (coding exon 2) of the ABCG1 gene. This alteration results from a C to T substitution at nucleotide position 71, causing the threonine (T) at amino acid position 24 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.073
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.21
CADD
Benign
18
DANN
Benign
0.88
Eigen
Benign
-0.90
Eigen_PC
Benign
-0.77
FATHMM_MKL
Benign
0.52
D
LIST_S2
Benign
0.74
T;T;T;T;T;T
M_CAP
Uncertain
0.13
D
MetaRNN
Benign
0.011
T;T;T;T;T;T
MetaSVM
Benign
-0.79
T
MutationTaster
Benign
0.98
N;N;N;N;N
PrimateAI
Uncertain
0.50
T
PROVEAN
Benign
-0.51
N;N;N;N;N;N
REVEL
Benign
0.27
Sift
Benign
0.036
D;D;T;D;D;D
Sift4G
Uncertain
0.039
D;D;D;T;T;T
Polyphen
0.0050
B;B;.;B;B;B
Vest4
0.14
MVP
0.73
MPC
0.64
ClinPred
0.0046
T
GERP RS
1.8
Varity_R
0.027
gMVP
0.41

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: rs144780823; hg19: chr21-43645809; COSMIC: COSV59206899; COSMIC: COSV59206899; API