2-60768883-A-G

Position:

chr2-60768883-A-G

Variant summary

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

The NM_022894.4(PAPOLG):c.431A>G(p.Asn144Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000038 in 1,577,458 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

PAPOLG
NM_022894.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.29

Variant links:

Genes affected

PAPOLG (HGNC:14982): (poly(A) polymerase gamma) This gene encodes a member of the poly(A) polymerase family which catalyzes template-independent extension of the 3' end of a DNA/RNA strand. This enzyme shares 60% identity to the well characterized poly(A) polymerase II (PAPII) at the amino acid level. These two enzymes have similar organization of structural and functional domains. This enzyme is exclusively localized in the nucleus and exhibits both nonspecific and CPSF (cleavage and polyadenylation specificity factor)/AAUAAA-dependent polyadenylation activity. This gene is located on chromosome 2 in contrast to the PAPII gene, which is located on chromosome 14. [provided by RefSeq, Jul 2008]

PAPOLG links:

Genome browser will be placed here

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=0.20974898).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
PAPOLG	NM_022894.4 linkuse as main transcript	c.431A>G	p.Asn144Ser	missense_variant	5/22	ENST00000238714.8	NP_075045.2
PAPOLG	XM_005264500.5 linkuse as main transcript	c.431A>G	p.Asn144Ser	missense_variant	5/21		XP_005264557.1
PAPOLG	XM_005264501.3 linkuse as main transcript	c.299A>G	p.Asn100Ser	missense_variant	5/22		XP_005264558.1
PAPOLG	XR_007080681.1 linkuse as main transcript	n.642A>G		non_coding_transcript_exon_variant	5/16

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PAPOLG	ENST00000238714.8 linkuse as main transcript	c.431A>G	p.Asn144Ser	missense_variant	5/22	1	NM_022894.4	ENSP00000238714	P1	Q9BWT3-1
PAPOLG	ENST00000496283.5 linkuse as main transcript	n.511A>G		non_coding_transcript_exon_variant	5/19	1
PAPOLG	ENST00000414060.5 linkuse as main transcript	c.299A>G	p.Asn100Ser	missense_variant, NMD_transcript_variant	5/21	1		ENSP00000405599
PAPOLG	ENST00000453839.5 linkuse as main transcript	c.413A>G	p.Asn138Ser	missense_variant, NMD_transcript_variant	4/20	1		ENSP00000414070

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152196

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

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:

0.00000904

AC:

AN:

221212

Hom.:

AF XY:

0.00

AC XY:

AN XY:

120108

show subpopulations

Gnomad AFR exome

AF:

0.000134

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

AF:

0.00000281

AC:

AN:

1425262

Hom.:

Cov.:

AF XY:

0.00000141

AC XY:

AN XY:

709314

show subpopulations

Gnomad4 AFR exome

AF:

0.0000314

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:

9.14e-7

Gnomad4 OTH exome

AF:

0.0000340

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152196

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74344

show subpopulations

Gnomad4 AFR

AF:

0.0000482

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

Alfa

AF:

0.0000659

Hom.:

Bravo

AF:

0.0000227

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

Jan 30, 2024

The c.431A>G (p.N144S) alteration is located in exon 5 (coding exon 5) of the PAPOLG gene. This alteration results from a A to G substitution at nucleotide position 431, causing the asparagine (N) at amino acid position 144 to be replaced by a serine (S). 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

0.22

BayesDel_addAF

Benign

-0.096

BayesDel_noAF

Benign

-0.38

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.071

Eigen

Uncertain

0.29

Eigen_PC

Uncertain

0.42

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.96

M_CAP

Benign

0.023

MetaRNN

Benign

0.21

MetaSVM

Benign

-0.63

MutationAssessor

Benign

1.6

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.61

PROVEAN

Benign

-1.3

REVEL

Benign

0.20

Sift

Uncertain

0.0040

Sift4G

Uncertain

0.021

Polyphen

0.36

Vest4

0.21

MVP

0.58

MPC

0.60

ClinPred

0.44

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.39

gMVP

0.12

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