7-151033685-G-A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_007188.5(ABCB8):c.176G>A(p.Arg59Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000775 in 1,611,872 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000077 ( 0 hom. )

Consequence

ABCB8
NM_007188.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0850

Publications

0 publications found

Variant links:

Genes affected

ABCB8 (HGNC:49): (ATP binding cassette subfamily B member 8) This nuclear gene encodes a multi-pass membrane protein that is targeted to the mitochondrial inner membrane. The encoded protein is an ATP-dependent transporter that may mediate the passage of organic and inorganic molecules out of the mitochondria. Loss of function of the related gene in mouse results in a disruption of iron homeostasis between the mitochondria and cytosol. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2013]

ABCB8 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.03175938).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ABCB8	NM_007188.5 link	c.176G>A	p.Arg59Gln	missense_variant	Exon 2 of 16	ENST00000358849.9	NP_009119.2	Q9NUT2-2
ABCB8	NM_001282291.2 link	c.227G>A	p.Arg76Gln	missense_variant	Exon 3 of 17		NP_001269220.1	Q9NUT2-1
ABCB8	NM_001282292.2 link	c.176G>A	p.Arg59Gln	missense_variant	Exon 2 of 16		NP_001269221.1	Q9NUT2-3
ABCB8	NM_001282293.2 link	c.145-588G>A		intron_variant	Intron 1 of 14		NP_001269222.1	Q9NUT2-4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ABCB8	ENST00000358849.9 link	c.176G>A	p.Arg59Gln	missense_variant	Exon 2 of 16	1	NM_007188.5	ENSP00000351717.4		Q9NUT2-2

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

152092

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00124

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000117

AC:

AN:

247836

AF XY:

0.000179

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000291

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000361

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000774

AC:

113

AN:

1459780

Hom.:

Cov.:

AF XY:

0.000105

AC XY:

AN XY:

726068

show subpopulations

African (AFR)

AF:

0.0000598

AC:

AN:

33450

American (AMR)

AF:

0.0000449

AC:

AN:

44570

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26008

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39636

South Asian (SAS)

AF:

0.000906

AC:

AN:

86100

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53092

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5752

European-Non Finnish (NFE)

AF:

0.0000243

AC:

AN:

1110880

Other (OTH)

AF:

0.0000498

AC:

AN:

60292

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000789

AC:

AN:

152092

Hom.:

Cov.:

AF XY:

0.000135

AC XY:

AN XY:

74280

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41408

American (AMR)

AF:

0.0000655

AC:

AN:

15276

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00124

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

67998

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.000115

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 13, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.176G>A (p.R59Q) alteration is located in exon 2 (coding exon 2) of the ABCB8 gene. This alteration results from a G to A substitution at nucleotide position 176, causing the arginine (R) at amino acid position 59 to be replaced by a glutamine (Q). 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

0.080

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.30

CADD

Benign

9.7

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.057

.;.;T;.;.;T

Eigen

Benign

-0.96

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.062

LIST_S2

Benign

0.85

T;T;T;T;T;T

M_CAP

Benign

0.052

MetaRNN

Benign

0.032

T;T;T;T;T;T

MetaSVM

Benign

-0.60

MutationAssessor

Benign

0.69

.;.;N;.;.;.

PhyloP100

-0.085

PrimateAI

Benign

0.35

PROVEAN

Uncertain

-3.9

D;N;N;N;N;N

REVEL

Benign

0.067

Sift

Benign

0.037

D;D;D;T;D;D

Sift4G

Benign

0.16

T;T;T;T;T;T

Polyphen

0.14, 0.037, 0.070

.;B;B;.;.;B

Vest4

0.11, 0.11, 0.16, 0.14, 0.15

MutPred

0.40

.;.;Loss of MoRF binding (P = 0.0242);.;.;.;

MVP

0.83

MPC

0.25

ClinPred

0.029

GERP RS

1.3

Varity_R

0.040

gMVP

0.21

Mutation Taster

=89/11

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

7-151033685-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over