dbSNP rs267606994: PYY:p.Gln62Arg (chr17-43953299-T-C) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_001394028.1(PYY):c.185A>G(p.Gln62Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,459,920 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q62P) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PYY
NM_001394028.1 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.45

Publications

4 publications found

Variant links:

Genes affected

PYY (HGNC:9748): (peptide YY) This gene encodes a member of the neuropeptide Y (NPY) family of peptides. The encoded preproprotein is proteolytically processed to generate two alternative peptide products that differ in length by three amino acids. These peptides, secreted by endocrine cells in the gut, exhibit different binding affinities for each of the neuropeptide Y receptors. Binding of the encoded peptides to these receptors mediates regulation of pancreatic secretion, gut mobility and energy homeostasis. Rare variations in this gene could increase susceptibility to obesity and elevated serum levels of the encoded peptides may be associated with anorexia nervosa. [provided by RefSeq, Feb 2016]

PYY links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.787

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PYY	NM_001394028.1 link	c.185A>G	p.Gln62Arg	missense_variant	Exon 2 of 4	ENST00000692052.1	NP_001380957.1
PYY	NM_004160.6 link	c.185A>G	p.Gln62Arg	missense_variant	Exon 5 of 7		NP_004151.4	P10082-1
PYY	NM_001394029.1 link	c.185A>G	p.Gln62Arg	missense_variant	Exon 2 of 3		NP_001380958.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
PYY	ENST00000692052.1 link	c.185A>G	p.Gln62Arg	missense_variant	Exon 2 of 4		NM_001394028.1	ENSP00000509262.1	P10082-1
PYY	ENST00000360085.6 link	c.185A>G	p.Gln62Arg	missense_variant	Exon 5 of 7	1		ENSP00000353198.1	P10082-1
PYY	ENST00000592796.2 link	c.185A>G	p.Gln62Arg	missense_variant	Exon 2 of 3	1		ENSP00000467310.1	P10082-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000818

AC:

AN:

244558

AF XY:

0.00000750

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000110

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1459920

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726222

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33450

American (AMR)

AF:

0.00

AC:

AN:

44496

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26072

East Asian (EAS)

AF:

0.0000505

AC:

AN:

39636

South Asian (SAS)

AF:

0.00

AC:

AN:

86130

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53022

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5734

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111110

Other (OTH)

AF:

0.00

AC:

AN:

60270

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000203), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.43

BayesDel_addAF

Benign

-0.058

BayesDel_noAF

Benign

-0.10

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.47

T;.

Eigen

Uncertain

0.56

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.71

T;T

M_CAP

Uncertain

0.19

MetaRNN

Pathogenic

0.79

D;D

MetaSVM

Benign

-0.48

PhyloP100

4.5

PrimateAI

Pathogenic

0.79

PROVEAN

Uncertain

-4.0

D;.

REVEL

Uncertain

0.50

Sift

Pathogenic

0.0

D;.

Sift4G

Uncertain

0.022

D;D

Polyphen

1.0

D;.

Vest4

0.71

MutPred

0.75

Gain of MoRF binding (P = 0.0432);Gain of MoRF binding (P = 0.0432);

MVP

0.68

MPC

0.69

ClinPred

0.95

GERP RS

4.6

Varity_R

0.80

gMVP

0.57

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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rs267606994

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over