Variant chr9-116154329-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_002581.5(PAPPA):c.157C>G(p.Arg53Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000953 in 839,832 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 0.000014 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000086 ( 0 hom. )

Consequence

PAPPA
NM_002581.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.94

Variant links:

Genes affected

PAPPA (HGNC:8602): (pappalysin 1) This gene encodes a secreted metalloproteinase which cleaves insulin-like growth factor binding proteins (IGFBPs). Following IGFBP cleavage, insulin growth factors dissociate from IGFBPs and bind to IGF receptors, resulting in activation of the IGF pathway. The encoded protein plays a role in bone formation, inflammation, wound healing and female fertility. Enhanced expression of this protein is associated with diabetic nephropathy in human patients and this protein may promote tumor invasion and growth in various human cancers. [provided by RefSeq, Aug 2017]

PAPPA links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.22135356).

BS2

High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PAPPA	NM_002581.5 linkuse as main transcript	c.157C>G	p.Arg53Gly	missense_variant	1/22	ENST00000328252.4	NP_002572.2	Q13219Q7Z613B4DTA8
PAPPA	XM_017014784.3 linkuse as main transcript	c.157C>G	p.Arg53Gly	missense_variant	1/21		XP_016870273.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PAPPA	ENST00000328252.4 linkuse as main transcript	c.157C>G	p.Arg53Gly	missense_variant	1/22	1	NM_002581.5	ENSP00000330658.3		Q13219

Frequencies

GnomAD3 genomes

AF:

0.0000138

AC:

AN:

145036

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000249

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:

0.000502

GnomAD4 exome

AF:

0.00000864

AC:

AN:

694796

Hom.:

Cov.:

AF XY:

0.00000620

AC XY:

AN XY:

322614

show subpopulations

Gnomad4 AFR exome

AF:

0.000309

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000721

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000157

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000138

AC:

AN:

145036

Hom.:

Cov.:

AF XY:

0.0000142

AC XY:

AN XY:

70512

show subpopulations

Gnomad4 AFR

AF:

0.0000249

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:

0.000502

Bravo

AF:

0.0000113

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 14, 2024

The c.157C>G (p.R53G) alteration is located in exon 1 (coding exon 1) of the PAPPA gene. This alteration results from a C to G substitution at nucleotide position 157, causing the arginine (R) at amino acid position 53 to be replaced by a glycine (G). 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

0.23

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.45

CADD

Benign

DANN

Benign

0.94

DEOGEN2

Benign

0.31

Eigen

Benign

0.093

Eigen_PC

Benign

0.017

FATHMM_MKL

Benign

0.62

LIST_S2

Benign

0.58

M_CAP

Benign

0.020

MetaRNN

Benign

0.22

MetaSVM

Benign

-0.83

MutationAssessor

Benign

0.0

PrimateAI

Pathogenic

0.87

PROVEAN

Benign

-0.94

REVEL

Benign

0.084

Sift

Uncertain

0.027

Sift4G

Benign

0.11

Polyphen

0.98

Vest4

0.27

MutPred

0.21

Gain of loop (P = 0.0097);

MVP

0.068

MPC

0.46

ClinPred

0.79

GERP RS

2.3

Varity_R

0.21

gMVP

0.61

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