7-151028576-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_007188.5(ABCB8):​c.61C>T​(p.Pro21Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,616 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

ABCB8
NM_007188.5 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.537

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]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0718478).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ABCB8NM_007188.5 linkc.61C>T p.Pro21Ser missense_variant Exon 1 of 16 ENST00000358849.9 NP_009119.2 Q9NUT2-2
ABCB8NM_001282291.2 linkc.61C>T p.Pro21Ser missense_variant Exon 1 of 17 NP_001269220.1 Q9NUT2-1
ABCB8NM_001282292.2 linkc.61C>T p.Pro21Ser missense_variant Exon 1 of 16 NP_001269221.1 Q9NUT2-3
ABCB8NM_001282293.2 linkc.110C>T p.Thr37Ile missense_variant Exon 1 of 15 NP_001269222.1 Q9NUT2-4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ABCB8ENST00000358849.9 linkc.61C>T p.Pro21Ser missense_variant Exon 1 of 16 1 NM_007188.5 ENSP00000351717.4 Q9NUT2-2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.00000800
AC:
2
AN:
250040
AF XY:
0.00000738
show subpopulations
Gnomad AFR exome
AF:
0.0000622
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461616
Hom.:
0
Cov.:
30
AF XY:
0.00000275
AC XY:
2
AN XY:
727094
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33472
American (AMR)
AF:
0.00
AC:
0
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86226
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53376
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5650
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111986
Other (OTH)
AF:
0.00
AC:
0
AN:
60362
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
33

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Jun 24, 2022
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.61C>T (p.P21S) alteration is located in exon 1 (coding exon 1) of the ABCB8 gene. This alteration results from a C to T substitution at nucleotide position 61, causing the proline (P) at amino acid position 21 to be replaced by a serine (S). 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
0.077
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.30
CADD
Benign
10
DANN
Benign
0.83
DEOGEN2
Benign
0.037
.;.;T;.;.;T
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.16
N
LIST_S2
Benign
0.82
T;T;T;T;T;T
M_CAP
Benign
0.053
D
MetaRNN
Benign
0.072
T;T;T;T;T;T
MetaSVM
Benign
-0.70
T
MutationAssessor
Benign
0.90
.;L;L;L;.;.
PhyloP100
0.54
PrimateAI
Benign
0.27
T
PROVEAN
Uncertain
-4.0
D;N;N;N;N;N
REVEL
Benign
0.20
Sift
Uncertain
0.028
D;T;T;D;D;D
Sift4G
Benign
0.13
T;T;T;T;T;T
Polyphen
0.0060, 0.0030, 0.023
.;B;B;.;.;B
Vest4
0.21, 0.25, 0.25, 0.25, 0.23
MutPred
0.36
Loss of sheet (P = 0.0025);Loss of sheet (P = 0.0025);Loss of sheet (P = 0.0025);Loss of sheet (P = 0.0025);Loss of sheet (P = 0.0025);Loss of sheet (P = 0.0025);
MVP
0.80
MPC
0.23
ClinPred
0.054
T
GERP RS
3.2
PromoterAI
0.012
Neutral
Varity_R
0.030
gMVP
0.15
Mutation Taster
=94/6
polymorphism

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

Other links and lift over

dbSNP: rs1221559886; hg19: chr7-150725663; API