rs151194300

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_007188.5(ABCB8):​c.779G>A​(p.Cys260Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 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. C260S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

ABCB8
NM_007188.5 missense

Scores

1
6
12

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.66
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.29407915).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ABCB8NM_007188.5 linkc.779G>A p.Cys260Tyr missense_variant Exon 6 of 16 ENST00000358849.9 NP_009119.2 Q9NUT2-2
ABCB8NM_001282291.2 linkc.830G>A p.Cys277Tyr missense_variant Exon 7 of 17 NP_001269220.1 Q9NUT2-1
ABCB8NM_001282292.2 linkc.779G>A p.Cys260Tyr missense_variant Exon 6 of 16 NP_001269221.1 Q9NUT2-3
ABCB8NM_001282293.2 linkc.515G>A p.Cys172Tyr missense_variant Exon 5 of 15 NP_001269222.1 Q9NUT2-4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ABCB8ENST00000358849.9 linkc.779G>A p.Cys260Tyr missense_variant Exon 6 of 16 1 NM_007188.5 ENSP00000351717.4 Q9NUT2-2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1448576
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
717944
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.75
BayesDel_addAF
Uncertain
0.076
D
BayesDel_noAF
Benign
-0.13
CADD
Benign
21
DANN
Benign
0.94
DEOGEN2
Benign
0.23
.;.;T;.;.;T
Eigen
Benign
-0.37
Eigen_PC
Benign
-0.24
FATHMM_MKL
Uncertain
0.86
D
LIST_S2
Uncertain
0.91
D;D;D;D;D;D
M_CAP
Uncertain
0.088
D
MetaRNN
Benign
0.29
T;T;T;T;T;T
MetaSVM
Benign
-0.43
T
MutationAssessor
Benign
1.7
.;.;L;.;.;.
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
-0.25
N;N;N;N;N;N
REVEL
Uncertain
0.36
Sift
Benign
1.0
T;T;T;T;T;T
Sift4G
Benign
1.0
T;T;T;T;D;D
Polyphen
0.069, 0.15, 0.24
.;B;B;.;.;B
Vest4
0.51
MVP
0.89
MPC
0.42
ClinPred
0.27
T
GERP RS
3.0
Varity_R
0.052
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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs151194300; hg19: chr7-150732681; COSMIC: COSV52503820; COSMIC: COSV52503820; API