7-151033622-G-T

Variant names:

• chr7-151033622-G-T
• rs528488908
• NM_007188.5:c.113G>T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_007188.5(ABCB8):​c.113G>T​(p.Arg38Leu) 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. 16/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: ABCB8 NM_007188.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.499

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]

ACMG classification

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=0.061110437).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ABCB8	NM_007188.5	c.113G>T	p.Arg38Leu	missense_variant	Exon 2 of 16	ENST00000358849.9	NP_009119.2
ABCB8	NM_001282291.2	c.164G>T	p.Arg55Leu	missense_variant	Exon 3 of 17		NP_001269220.1
ABCB8	NM_001282292.2	c.113G>T	p.Arg38Leu	missense_variant	Exon 2 of 16		NP_001269221.1
ABCB8	NM_001282293.2	c.145-651G>T		intron_variant	Intron 1 of 14		NP_001269222.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ABCB8	ENST00000358849.9	c.113G>T	p.Arg38Leu	missense_variant	Exon 2 of 16	1	NM_007188.5	ENSP00000351717.4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1431176 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 708312

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

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.10
BayesDel_addAF	Benign	-0.16	T
BayesDel_noAF	Benign	-0.46
CADD	Benign	0.59
DANN	Benign	0.58
DEOGEN2	Benign	0.047	.;.;T;.;.;T
Eigen	Benign	-1.4
Eigen_PC	Benign	-1.5
FATHMM_MKL	Benign	0.060	N
LIST_S2	Benign	0.57	T;T;T;T;T;T
M_CAP	Benign	0.027	D
MetaRNN	Benign	0.061	T;T;T;T;T;T
MetaSVM	Benign	-0.82	T
MutationAssessor	Benign	0.20	.;.;N;.;.;.
PrimateAI	Benign	0.27	T
PROVEAN	Benign	-2.3	N;N;N;N;N;N
REVEL	Benign	0.096
Sift	Benign	0.76	T;T;T;T;T;T
Sift4G	Benign	0.53	T;T;T;T;T;T
Polyphen		0.0	.;B;B;.;.;B
Vest4		0.071, 0.10, 0.17, 0.12, 0.14
MutPred		0.39		.;.;Loss of catalytic residue at R55 (P = 0.0064);.;.;.;
MVP		0.63
MPC		0.27
ClinPred		0.035	T
GERP RS		-1.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.041
gMVP		0.17

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		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

Other links and lift over

dbSNP: rs528488908; hg19: chr7-150730709;