Variant chr17-68875304-A-C details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_001288985.2(ABCA8):c.4587T>G(p.His1529Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,182 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 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: 𝑓 0.0000066 ( 0 hom., cov: 32)

Consequence

ABCA8
NM_001288985.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.984

Variant links:

Genes affected

ABCA8 (HGNC:38): (ATP binding cassette subfamily A member 8) The membrane-associated 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 intracellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the ABC1 subfamily. Members of the ABC1 subfamily comprise the only major ABC subfamily found exclusively in multicellular eukaryotes. The encoded protein may regulate lipid metabolism and be involved in the formation and maintenance of myelin. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]

ABCA8 links:

LOC105371874 (HGNC:):

LOC105371874 links:

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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=0.18965748).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ABCA8	NM_001288985.2 linkuse as main transcript	c.4587T>G	p.His1529Gln	missense_variant	37/40	ENST00000586539.6	NP_001275914.1	O94911-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
ABCA8	ENST00000586539.6 linkuse as main transcript	c.4587T>G	p.His1529Gln	missense_variant	37/40	1	NM_001288985.2	ENSP00000467271.1	O94911-3
ABCA8	ENST00000430352.6 linkuse as main transcript	c.4572T>G	p.His1524Gln	missense_variant	36/39	1		ENSP00000402814.3	A0A0A0MSU4
ABCA8	ENST00000269080.6 linkuse as main transcript	c.4467T>G	p.His1489Gln	missense_variant	35/38	1		ENSP00000269080.1	O94911-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251478

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135910

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152182

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74336

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 27, 2024

The c.4467T>G (p.H1489Q) alteration is located in exon 35 (coding exon 34) of the ABCA8 gene. This alteration results from a T to G substitution at nucleotide position 4467, causing the histidine (H) at amino acid position 1489 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

0.33

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.41

CADD

Benign

0.27

DANN

Benign

0.53

DEOGEN2

Benign

0.24

T;T;.

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.7

FATHMM_MKL

Benign

0.076

LIST_S2

Benign

0.79

T;T;T

M_CAP

Benign

0.049

MetaRNN

Benign

0.19

T;T;T

MetaSVM

Benign

-0.29

MutationAssessor

Benign

2.0

M;.;.

PrimateAI

Benign

0.46

PROVEAN

Pathogenic

-6.1

D;.;.

REVEL

Uncertain

0.34

Sift

Benign

0.29

T;.;.

Sift4G

Benign

0.35

T;T;T

Polyphen

1.0

D;.;.

Vest4

0.28

MutPred

0.37

Gain of relative solvent accessibility (P = 0.09);.;.;

MVP

0.31

MPC

0.11

ClinPred

0.68

GERP RS

-9.9

Varity_R

0.14

gMVP

0.17

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

LitVar

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over