rs121909097

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PS1_ModeratePM2PP2PP3_Strong

The NM_001374385.1(ATP8B1):​c.923G>A​(p.Gly308Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,850 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in same amino acid change has been previously reported as Likely pathogenicin UniProt.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ATP8B1
NM_001374385.1 missense

Scores

15
3
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.86
Variant links:
Genes affected
ATP8B1 (HGNC:3706): (ATPase phospholipid transporting 8B1) This gene encodes a member of the P-type cation transport ATPase family, which belongs to the subfamily of aminophospholipid-transporting ATPases. The aminophospholipid translocases transport phosphatidylserine and phosphatidylethanolamine from one side of a bilayer to another. Mutations in this gene may result in progressive familial intrahepatic cholestasis type 1 and in benign recurrent intrahepatic cholestasis. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 9 ACMG points.

PS1
Transcript NM_001374385.1 (ATP8B1) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in UniProt
PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), ATP8B1. . Trascript score misZ 3.3227 (greater than threshold 3.09). GenCC has associacion of gene with progressive familial intrahepatic cholestasis type 1, cholestasis, intrahepatic, of pregnancy, 1.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.988

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ATP8B1NM_001374385.1 linkuse as main transcriptc.923G>A p.Gly308Asp missense_variant 10/28 ENST00000648908.2 NP_001361314.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ATP8B1ENST00000648908.2 linkuse as main transcriptc.923G>A p.Gly308Asp missense_variant 10/28 NM_001374385.1 ENSP00000497896.1 O43520

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251404
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135908
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461850
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
727222
show subpopulations
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.50
D
BayesDel_noAF
Pathogenic
0.48
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.95
D;D
Eigen
Pathogenic
1.0
Eigen_PC
Pathogenic
0.87
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Pathogenic
1.0
.;D
M_CAP
Pathogenic
0.36
D
MetaRNN
Pathogenic
0.99
D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
4.7
H;H
PrimateAI
Uncertain
0.74
T
PROVEAN
Pathogenic
-6.8
D;.
REVEL
Pathogenic
0.97
Sift
Pathogenic
0.0
D;.
Sift4G
Uncertain
0.0020
D;.
Polyphen
1.0
D;D
Vest4
0.96
MutPred
0.88
Loss of catalytic residue at C306 (P = 0.1169);Loss of catalytic residue at C306 (P = 0.1169);
MVP
0.99
ClinPred
1.0
D
GERP RS
5.3
Varity_R
0.98
gMVP
1.0

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.

Other links and lift over

dbSNP: rs111033609; hg19: chr18-55362420; COSMIC: COSV99376939; COSMIC: COSV99376939; API