20-44912691-G-C

Position:

chr20-44912691-G-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001372179.1(PABPC1L):c.225G>C(p.Glu75Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,613,822 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. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

PABPC1L
NM_001372179.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.479

Variant links:

Genes affected

PABPC1L (HGNC:15797): (poly(A) binding protein cytoplasmic 1 like) This gene belongs to the polyadenylate-binding protein type-1 family of proteins. Members of this family bind to the polyA tails of mRNAs to regulate mRNA stability and translation. The mouse ortholog of this gene is required for female fertility. In human, expression of a functional protein is regulated by alternative splicing. The protein-coding splice variant for this gene is abundantly expressed in human oocytes, while a noncoding splice variant subject to nonsense-mediated decay is the predominant splice variant expressed in somatic tissues. [provided by RefSeq, Aug 2019]

PABPC1L links:

PABPC1L (HGNC:):

PABPC1L links:

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ACMG classification

Classification made for transcript

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=0.038051426).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PABPC1L	NM_001372179.1 linkuse as main transcript	c.225G>C	p.Glu75Asp	missense_variant	2/15	ENST00000217073.7	NP_001359108.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
PABPC1L	ENST00000217073.7 linkuse as main transcript	c.225G>C	p.Glu75Asp	missense_variant	2/15	5	NM_001372179.1	ENSP00000217073.3	A0A6Q8JFT6
PABPC1L	ENST00000537323.5 linkuse as main transcript	n.225G>C		non_coding_transcript_exon_variant	2/14	1		ENSP00000445661.1	Q4VXU2-2
PABPC1L	ENST00000255136.8 linkuse as main transcript	c.225G>C	p.Glu75Asp	missense_variant	2/15	5		ENSP00000255136.3	Q4VXU2-1
PABPC1L	ENST00000217074.9 linkuse as main transcript	n.204G>C		non_coding_transcript_exon_variant	2/14	5		ENSP00000217074.5	A0A6Q8JFV4

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152178

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000402

AC:

AN:

248744

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135144

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:

0.00000888

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461644

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727152

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:

0.00000360

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152178

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74356

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ExAC

AF:

0.00000828

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

May 24, 2023

The c.225G>C (p.E75D) alteration is located in exon 2 (coding exon 2) of the PABPC1L gene. This alteration results from a G to C substitution at nucleotide position 225, causing the glutamic acid (E) at amino acid position 75 to be replaced by an aspartic acid (D). 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

0.15

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.69

CADD

Benign

8.9

DANN

Benign

0.67

DEOGEN2

Benign

0.0053

.;T;.;T

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.34

LIST_S2

Uncertain

0.93

.;D;D;.

M_CAP

Benign

0.0052

MetaRNN

Benign

0.038

T;T;T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

0.55

N;N;N;N

PrimateAI

Uncertain

0.64

PROVEAN

Benign

2.5

N;N;N;N

REVEL

Benign

0.16

Sift

Benign

1.0

T;T;T;T

Sift4G

Benign

0.81

T;T;T;T

Polyphen

0.0030

.;B;.;B

Vest4

0.24

MutPred

0.30

Loss of methylation at K78 (P = 0.1166);Loss of methylation at K78 (P = 0.1166);Loss of methylation at K78 (P = 0.1166);Loss of methylation at K78 (P = 0.1166);

MVP

0.24

MPC

0.27

ClinPred

0.066

GERP RS

0.22

Varity_R

0.082

gMVP

0.33

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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