18-57646551-A-T

Variant summary

Our verdict is Benign. Variant got -18 ACMG points: 0P and 18B. BP4_ModerateBP6_Very_StrongBA1

The NM_001374385.1(ATP8B1):​c.*1937T>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.205 in 152,620 control chromosomes in the GnomAD database, including 3,915 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.20 ( 3892 hom., cov: 33)
Exomes 𝑓: 0.32 ( 23 hom. )

Consequence

ATP8B1
NM_001374385.1 3_prime_UTR

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 3.02
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]
ATP8B1-AS1 (HGNC:56042): (ATP8B1 antisense RNA 1)

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -18 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.27).
BP6
Variant 18-57646551-A-T is Benign according to our data. Variant chr18-57646551-A-T is described in ClinVar as [Benign]. Clinvar id is 327440.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.272 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ATP8B1NM_001374385.1 linkuse as main transcriptc.*1937T>A 3_prime_UTR_variant 28/28 ENST00000648908.2 NP_001361314.1
ATP8B1-AS1NR_164148.1 linkuse as main transcriptn.682+4499A>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ATP8B1ENST00000648908.2 linkuse as main transcriptc.*1937T>A 3_prime_UTR_variant 28/28 NM_001374385.1 ENSP00000497896 P1
ENST00000588925.5 linkuse as main transcriptn.570+4499A>T intron_variant, non_coding_transcript_variant 2
ATP8B1-AS1ENST00000592201.1 linkuse as main transcriptn.663+4499A>T intron_variant, non_coding_transcript_variant 1

Frequencies

GnomAD3 genomes
AF:
0.205
AC:
31190
AN:
152074
Hom.:
3892
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0880
Gnomad AMI
AF:
0.0746
Gnomad AMR
AF:
0.207
Gnomad ASJ
AF:
0.272
Gnomad EAS
AF:
0.0160
Gnomad SAS
AF:
0.194
Gnomad FIN
AF:
0.294
Gnomad MID
AF:
0.272
Gnomad NFE
AF:
0.275
Gnomad OTH
AF:
0.233
GnomAD4 exome
AF:
0.320
AC:
137
AN:
428
Hom.:
23
Cov.:
0
AF XY:
0.295
AC XY:
76
AN XY:
258
show subpopulations
Gnomad4 FIN exome
AF:
0.322
Gnomad4 NFE exome
AF:
0.500
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.205
AC:
31197
AN:
152192
Hom.:
3892
Cov.:
33
AF XY:
0.203
AC XY:
15069
AN XY:
74410
show subpopulations
Gnomad4 AFR
AF:
0.0880
Gnomad4 AMR
AF:
0.206
Gnomad4 ASJ
AF:
0.272
Gnomad4 EAS
AF:
0.0160
Gnomad4 SAS
AF:
0.194
Gnomad4 FIN
AF:
0.294
Gnomad4 NFE
AF:
0.275
Gnomad4 OTH
AF:
0.229
Alfa
AF:
0.238
Hom.:
641
Bravo
AF:
0.190
Asia WGS
AF:
0.112
AC:
389
AN:
3472

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Progressive familial intrahepatic cholestasis type 1 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.27
CADD
Benign
17
DANN
Benign
0.86

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: rs1129621; hg19: chr18-55313783; API