1-204409526-G-C

Position:

chr1-204409526-G-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_032833.5(PPP1R15B):c.1886C>G(p.Ser629Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000826 in 1,613,160 control chromosomes in the GnomAD database, including 16 homozygotes. In-silico tool predicts a benign outcome for this variant. 11/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0041 ( 7 hom., cov: 32)

Exomes 𝑓: 0.00048 ( 9 hom. )

Consequence

PPP1R15B
NM_032833.5 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.410

Variant links:

Genes affected

PPP1R15B (HGNC:14951): (protein phosphatase 1 regulatory subunit 15B) This gene encodes a protein phosphatase I-interacting protein that promotes the dephosphorylation of eukaryotic translation initiation factor 2A to regulate translation under conditions of cellular stress. The transcribed messenger RNA contains two upstream open reading frames (ORFs) that repress translation of the main protein coding ORF under normal conditions, while the protein coding ORF is expressed at high levels in response to stress. Continual translation of the mRNA under conditions of eukaryotic translation initiation factor 2A inactivation is thought to create a feedback loop for reactivation of the gene during recovery from stress. In addition, it has been shown that this protein plays a role in membrane traffic that is independent of translation and that it is required for exocytosis from erythroleukemia cells. Allelic variants of this gene are associated with microcephaly, short stature, and impaired glucose metabolism. [provided by RefSeq, Feb 2016]

PPP1R15B links:

PPP1R15B-AS1 (HGNC:55838): (PPP1R15B and PIK3C2B antisense RNA 1)

PPP1R15B-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.007181585).

BP6

Variant 1-204409526-G-C is Benign according to our data. Variant chr1-204409526-G-C is described in ClinVar as [Benign]. Clinvar id is 716902.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-204409526-G-C is described in Lovd as [Benign].

BS1

Variant frequency is greater than expected in population afr. gnomad4_exome allele frequency = 0.000481 (703/1460892) while in subpopulation AFR AF= 0.0164 (548/33428). AF 95% confidence interval is 0.0153. There are 9 homozygotes in gnomad4_exome. There are 277 alleles in male gnomad4_exome subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 7 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
PPP1R15B	NM_032833.5 linkuse as main transcript	c.1886C>G	p.Ser629Cys	missense_variant	1/2	ENST00000367188.5
PPP1R15B	XM_005245551.6 linkuse as main transcript	c.1886C>G	p.Ser629Cys	missense_variant	1/3
PPP1R15B	XM_047432518.1 linkuse as main transcript	c.1886C>G	p.Ser629Cys	missense_variant	1/3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PPP1R15B	ENST00000367188.5 linkuse as main transcript	c.1886C>G	p.Ser629Cys	missense_variant	1/2	1	NM_032833.5	P1
PPP1R15B-AS1	ENST00000443515.1 linkuse as main transcript	n.147-25811G>C		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes

AF:

0.00413

AC:

628

AN:

152150

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0140

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00242

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:

0.0000441

Gnomad OTH

AF:

0.00335

GnomAD3 exomes

AF:

0.00108

AC:

271

AN:

250202

Hom.:

AF XY:

0.000688

AC XY:

AN XY:

135224

show subpopulations

Gnomad AFR exome

AF:

0.0142

Gnomad AMR exome

AF:

0.000933

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000131

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000354

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000481

AC:

703

AN:

1460892

Hom.:

Cov.:

AF XY:

0.000381

AC XY:

277

AN XY:

726686

show subpopulations

Gnomad4 AFR exome

AF:

0.0164

Gnomad4 AMR exome

AF:

0.000943

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000105

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000252

Gnomad4 OTH exome

AF:

0.00121

GnomAD4 genome

AF:

0.00413

AC:

629

AN:

152268

Hom.:

Cov.:

AF XY:

0.00419

AC XY:

312

AN XY:

74436

show subpopulations

Gnomad4 AFR

AF:

0.0140

Gnomad4 AMR

AF:

0.00242

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00331

Alfa

AF:

0.000362

Hom.:

Bravo

AF:

0.00455

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.0118

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00123

AC:

149

Asia WGS

AF:

0.00173

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 23, 2024	- -
Benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Feb 01, 2023	PPP1R15B: BP4, BS1, BS2 -

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Dec 06, 2017

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.082

BayesDel_addAF

Benign

-0.60

BayesDel_noAF

Benign

-0.62

CADD

Benign

DANN

Uncertain

0.98

Eigen

Benign

-0.12

Eigen_PC

Benign

-0.065

FATHMM_MKL

Uncertain

0.87

MetaRNN

Benign

0.0072

MetaSVM

Benign

-1.0

MutationTaster

Benign

0.93

PrimateAI

Benign

0.33

PROVEAN

Uncertain

-2.7

REVEL

Benign

0.081

Sift

Uncertain

0.019

Sift4G

Uncertain

0.0080

Vest4

0.12

MVP

0.48

MPC

0.25

ClinPred

0.028

GERP RS

3.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

gMVP

0.39

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