4-72128735-C-G

Variant summary

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

The NM_004885.3(NPFFR2):c.144C>G(p.Phe48Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000458 in 1,614,110 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 0.000033 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000047 ( 0 hom. )

Consequence

NPFFR2
NM_004885.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.30

Variant links:

Genes affected

NPFFR2 (HGNC:4525): (neuropeptide FF receptor 2) This gene encodes a member of a subfamily of G-protein-coupled neuropeptide receptors. This protein is activated by the neuropeptides A-18-amide (NPAF) and F-8-amide (NPFF) and may function in pain modulation and regulation of the opioid system. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2009]

NPFFR2 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=0.2508083).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
NPFFR2	NM_004885.3 linkuse as main transcript	c.144C>G	p.Phe48Leu	missense_variant	2/4	ENST00000308744.12
NPFFR2	NM_001144756.2 linkuse as main transcript	c.153C>G	p.Phe51Leu	missense_variant	3/5
NPFFR2	NM_053036.3 linkuse as main transcript	c.144C>G	p.Phe48Leu	missense_variant	2/4
NPFFR2	XM_011531554.3 linkuse as main transcript	c.305-9305C>G		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NPFFR2	ENST00000308744.12 linkuse as main transcript	c.144C>G	p.Phe48Leu	missense_variant	2/4	1	NM_004885.3	P4	Q9Y5X5-2
NPFFR2	ENST00000395999.5 linkuse as main transcript	c.153C>G	p.Phe51Leu	missense_variant	3/5	1		A2	Q9Y5X5-3
NPFFR2	ENST00000358749.3 linkuse as main transcript	c.144C>G	p.Phe48Leu	missense_variant	2/4	1		P4	Q9Y5X5-2
NPFFR2	ENST00000344413.6 linkuse as main transcript	c.-20-9305C>G		intron_variant		1

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152166

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:

0.00104

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000151

AC:

AN:

251384

Hom.:

AF XY:

0.000162

AC XY:

AN XY:

135868

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:

0.00124

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000472

AC:

AN:

1461826

Hom.:

Cov.:

AF XY:

0.0000633

AC XY:

AN XY:

727204

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:

0.000696

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.000149

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152284

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74448

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:

0.00104

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ExAC

AF:

0.000157

AC:

Asia WGS

AF:

0.00115

AC:

AN:

3478

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

Mar 14, 2023

The c.450C>G (p.F150L) alteration is located in exon 2 (coding exon 2) of the NPFFR2 gene. This alteration results from a C to G substitution at nucleotide position 450, causing the phenylalanine (F) at amino acid position 150 to be replaced by a leucine (L). 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

Pathogenic

0.73

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Uncertain

-0.020

Cadd

Benign

Dann

Uncertain

0.99

DEOGEN2

Benign

0.077

T;.;.

Eigen

Uncertain

0.29

Eigen_PC

Uncertain

0.37

FATHMM_MKL

Uncertain

0.91

LIST_S2

Uncertain

0.88

D;D;D

M_CAP

Benign

0.0099

MetaRNN

Benign

0.25

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.0

N;.;.

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Uncertain

0.70

PROVEAN

Pathogenic

-4.5

D;D;D

REVEL

Benign

0.21

Sift

Benign

0.073

T;T;T

Sift4G

Benign

0.14

T;.;T

Polyphen

0.93

P;P;.

Vest4

0.78

MutPred

0.44

Loss of helix (P = 0.4763);.;.;

MVP

0.54

MPC

0.21

ClinPred

0.19

GERP RS

5.9

Varity_R

0.39

gMVP

0.58

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