2-43813127-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_022436.3(ABCG5):ā€‹c.1945A>Cā€‹(p.Ile649Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000446 in 1,099,226 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.000045 ( 0 hom. )

Consequence

ABCG5
NM_022436.3 missense

Scores

7
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.38
Variant links:
Genes affected
ABCG5 (HGNC:13886): (ATP binding cassette subfamily G member 5) 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. The protein encoded by this gene functions as a half-transporter to limit intestinal absorption and promote biliary excretion of sterols. It is expressed in a tissue-specific manner in the liver, colon, and intestine. This gene is tandemly arrayed on chromosome 2, in a head-to-head orientation with family member ABCG8. Mutations in this gene may contribute to sterol accumulation and atheroschlerosis, and have been observed in patients with sitosterolemia. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.25212383).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ABCG5NM_022436.3 linkuse as main transcriptc.1945A>C p.Ile649Leu missense_variant 13/13 ENST00000405322.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ABCG5ENST00000405322.8 linkuse as main transcriptc.1945A>C p.Ile649Leu missense_variant 13/131 NM_022436.3 P1Q9H222-1
ABCG5ENST00000486512.5 linkuse as main transcriptn.2466A>C non_coding_transcript_exon_variant 9/91
ABCG5ENST00000409962.1 linkuse as main transcriptn.2228A>C non_coding_transcript_exon_variant 9/92
ABCG5ENST00000644754.1 linkuse as main transcriptn.2329A>C non_coding_transcript_exon_variant 10/10

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.0000446
AC:
49
AN:
1099226
Hom.:
0
Cov.:
16
AF XY:
0.0000390
AC XY:
22
AN XY:
564024
show subpopulations
Gnomad4 AFR exome
AF:
0.0000382
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:
0.0000601
Gnomad4 OTH exome
AF:
0.0000207
GnomAD4 genome
Cov.:
32

ClinVar

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

Submissions by phenotype

Cardiovascular phenotype Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 07, 2023The c.1945A>C (p.I649L) alteration is located in exon 13 (coding exon 13) of the ABCG5 gene. This alteration results from a A to C substitution at nucleotide position 1945, causing the isoleucine (I) at amino acid position 649 to be replaced by a leucine (L). 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
0.086
BayesDel_addAF
Uncertain
0.025
T
BayesDel_noAF
Benign
-0.20
CADD
Benign
21
DANN
Uncertain
0.98
DEOGEN2
Benign
0.24
T;T
Eigen
Benign
-0.22
Eigen_PC
Benign
-0.16
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Benign
0.56
.;T
M_CAP
Uncertain
0.098
D
MetaRNN
Benign
0.25
T;T
MetaSVM
Uncertain
-0.089
T
MutationAssessor
Benign
1.9
L;L
MutationTaster
Benign
0.72
D;D;N
PrimateAI
Uncertain
0.52
T
PROVEAN
Benign
-0.49
N;.
REVEL
Benign
0.090
Sift
Benign
0.031
D;.
Sift4G
Uncertain
0.0050
D;.
Polyphen
0.20
B;B
Vest4
0.14
MutPred
0.30
Gain of catalytic residue at I649 (P = 0.0244);Gain of catalytic residue at I649 (P = 0.0244);
MVP
0.73
MPC
0.088
ClinPred
0.42
T
GERP RS
2.6
Varity_R
0.14
gMVP
0.69

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: chr2-44040266; API