dbSNP rs768312331: PYY:p.Thr60Ala (chr17-43953306-T-C) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001394028.1(PYY):c.178A>G(p.Thr60Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000616 in 1,460,196 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

PYY
NM_001394028.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.24

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.963

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PYY	NM_001394028.1 link	c.178A>G	p.Thr60Ala	missense_variant	Exon 2 of 4	ENST00000692052.1	NP_001380957.1
PYY	NM_004160.6 link	c.178A>G	p.Thr60Ala	missense_variant	Exon 5 of 7		NP_004151.4	P10082-1
PYY	NM_001394029.1 link	c.178A>G	p.Thr60Ala	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.178A>G	p.Thr60Ala	missense_variant	Exon 2 of 4		NM_001394028.1	ENSP00000509262.1	P10082-1
PYY	ENST00000360085.6 link	c.178A>G	p.Thr60Ala	missense_variant	Exon 5 of 7	1		ENSP00000353198.1	P10082-1
PYY	ENST00000592796.2 link	c.178A>G	p.Thr60Ala	missense_variant	Exon 2 of 3	1		ENSP00000467310.1	P10082-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000204

AC:

AN:

245214

Hom.:

AF XY:

0.0000150

AC XY:

AN XY:

133564

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000275

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:

0.00000616

AC:

AN:

1460196

Hom.:

Cov.:

AF XY:

0.00000551

AC XY:

AN XY:

726402

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000151

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

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

May 18, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.178A>G (p.T60A) alteration is located in exon 5 (coding exon 1) of the PYY gene. This alteration results from a A to G substitution at nucleotide position 178, causing the threonine (T) at amino acid position 60 to be replaced by an alanine (A). 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

0.78

BayesDel_addAF

Benign

-0.014

BayesDel_noAF

Uncertain

0.040

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.54

D;.

Eigen

Uncertain

0.62

Eigen_PC

Uncertain

0.59

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.91

D;D

M_CAP

Pathogenic

0.29

MetaRNN

Pathogenic

0.96

D;D

MetaSVM

Uncertain

-0.27

PrimateAI

Pathogenic

0.84

PROVEAN

Pathogenic

-4.9

D;.

REVEL

Uncertain

0.63

Sift

Pathogenic

0.0

D;.

Sift4G

Uncertain

0.0040

D;D

Polyphen

1.0

D;.

Vest4

0.91

MutPred

0.88

Loss of phosphorylation at T60 (P = 0.1305);Loss of phosphorylation at T60 (P = 0.1305);

MVP

0.82

MPC

1.3

ClinPred

0.97

GERP RS

4.6

Varity_R

0.73

gMVP

0.66

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