15-64816348-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_StrongBS1BS2

The NM_001286496.2(PIF1):c.1876G>A(p.Asp626Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00217 in 1,614,058 control chromosomes in the GnomAD database, including 59 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.011 ( 37 hom., cov: 33)

Exomes 𝑓: 0.0013 ( 22 hom. )

Consequence

PIF1
NM_001286496.2 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: -3.65

Variant links:

Genes affected

PIF1 (HGNC:26220): (PIF1 5'-to-3' DNA helicase) This gene encodes a DNA-dependent adenosine triphosphate (ATP)-metabolizing enzyme that functions as a 5' to 3' DNA helicase. The encoded protein can resolve G-quadruplex structures and RNA-DNA hybrids at the ends of chromosomes. It also prevents telomere elongation by inhibiting the actions of telomerase. Alternative splicing and the use of alternative start codons results in multiple isoforms that are differentially localized to either the mitochondria or the nucleus. [provided by RefSeq, Nov 2013]

PIF1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP6

Variant 15-64816348-C-T is Benign according to our data. Variant chr15-64816348-C-T is described in ClinVar as [Benign]. Clinvar id is 776914.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.011 (1675/152272) while in subpopulation AFR AF= 0.038 (1581/41552). AF 95% confidence interval is 0.0365. There are 37 homozygotes in gnomad4. There are 805 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 37 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PIF1	NM_001286496.2 link	c.1876G>A	p.Asp626Asn	missense_variant	Exon 13 of 13	ENST00000559239.2	NP_001273425.1	Q9H611-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
PIF1	ENST00000559239.2 link	c.1876G>A	p.Asp626Asn	missense_variant	Exon 13 of 13	1	NM_001286496.2	ENSP00000452792.1	Q9H611-1
PIF1	ENST00000268043.8 link	c.1876G>A	p.Asp626Asn	missense_variant	Exon 13 of 13	1		ENSP00000268043.4	Q9H611-1
PIF1	ENST00000333425.10 link	c.1866+226G>A		intron_variant	Intron 12 of 12	1		ENSP00000328174.6	Q9H611-3

Frequencies

GnomAD3 genomes

AF:

0.0110

AC:

1669

AN:

152154

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0380

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00419

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000206

Gnomad OTH

AF:

0.00669

GnomAD3 exomes

AF:

0.00319

AC:

801

AN:

251314

Hom.:

AF XY:

0.00255

AC XY:

346

AN XY:

135830

show subpopulations

Gnomad AFR exome

AF:

0.0389

Gnomad AMR exome

AF:

0.00344

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000273

Gnomad OTH exome

AF:

0.00245

GnomAD4 exome

AF:

0.00125

AC:

1834

AN:

1461786

Hom.:

Cov.:

AF XY:

0.00107

AC XY:

781

AN XY:

727186

show subpopulations

Gnomad4 AFR exome

AF:

0.0402

Gnomad4 AMR exome

AF:

0.00340

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000151

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000139

Gnomad4 OTH exome

AF:

0.00250

GnomAD4 genome

AF:

0.0110

AC:

1675

AN:

152272

Hom.:

Cov.:

AF XY:

0.0108

AC XY:

805

AN XY:

74440

show subpopulations

Gnomad4 AFR

AF:

0.0380

Gnomad4 AMR

AF:

0.00418

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000206

Gnomad4 OTH

AF:

0.00662

Alfa

AF:

0.00187

Hom.:

Bravo

AF:

0.0122

ESP6500AA

AF:

0.0359

AC:

158

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00366

AC:

445

Asia WGS

AF:

0.00318

AC:

AN:

3478

EpiCase

AF:

0.000273

EpiControl

AF:

0.000533

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Dec 31, 2019

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.071

BayesDel_addAF

Benign

-0.67

BayesDel_noAF

Benign

-0.70

CADD

Benign

0.045

DANN

Benign

0.43

DEOGEN2

Benign

0.035

T;T

Eigen

Benign

-1.7

Eigen_PC

Benign

-1.8

FATHMM_MKL

Benign

0.024

LIST_S2

Benign

0.61

.;T

MetaRNN

Benign

0.0022

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.29

N;N

PrimateAI

Benign

0.28

PROVEAN

Benign

-0.17

N;N

REVEL

Benign

0.11

Sift

Benign

0.41

T;T

Sift4G

Benign

0.57

T;T

Polyphen

0.0

B;B

Vest4

0.081

MVP

0.16

MPC

0.069

ClinPred

0.0014

GERP RS

-7.7

Varity_R

0.048

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.24

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.24

Position offset: 9

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