dbSNP rs752953257: PDYN:c.*1071G>A (chr20-1979252-C-T) – ACMG Classification: Benign (-9 pts)

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_024411.5(PDYN):c.*1071G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00124 in 152,582 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0012 ( 1 hom., cov: 32)

Exomes 𝑓: 0.0070 ( 0 hom. )

Consequence

PDYN
NM_024411.5 3_prime_UTR

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 1.27

Publications

0 publications found

Variant links:

Genes affected

PDYN (HGNC:8820): (prodynorphin) The protein encoded by this gene is a preproprotein that is proteolytically processed to form the secreted opioid peptides beta-neoendorphin, dynorphin, leu-enkephalin, rimorphin, and leumorphin. These peptides are ligands for the kappa-type of opioid receptor. Dynorphin is involved in modulating responses to several psychoactive substances, including cocaine. Multiple alternatively spliced transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jul 2010]

PDYN links:

PDYN-AS1 (HGNC:53462): (PDYN antisense RNA 1)

PDYN-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.64).

BP6

Variant 20-1979252-C-T is Benign according to our data. Variant chr20-1979252-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 337813.

BS2

High AC in GnomAd4 at 187 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024411.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
PDYN	NM_024411.5	MANE Select	c.*1071G>A	3_prime_UTR	Exon 4 of 4	NP_077722.1	P01213
PDYN	NM_001190892.1		c.*1071G>A	3_prime_UTR	Exon 3 of 3	NP_001177821.1	P01213
PDYN	NM_001190898.3		c.*1071G>A	3_prime_UTR	Exon 4 of 4	NP_001177827.1	P01213

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
PDYN	ENST00000217305.3	TSL:1 MANE Select	c.*1071G>A	3_prime_UTR	Exon 4 of 4	ENSP00000217305.2	P01213
PDYN	ENST00000539905.5	TSL:4	c.*1071G>A	3_prime_UTR	Exon 3 of 3	ENSP00000440185.1	P01213
PDYN	ENST00000540134.5	TSL:4	c.*1071G>A	3_prime_UTR	Exon 4 of 4	ENSP00000442259.1	P01213

Frequencies

GnomAD3 genomes

AF:

0.00123

AC:

187

AN:

152178

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

Gnomad ASJ

AF:

0.00288

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00462

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00173

Gnomad OTH

AF:

0.000957

GnomAD4 exome

AF:

0.00699

AC:

AN:

286

Hom.:

Cov.:

AF XY:

0.00641

AC XY:

AN XY:

156

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:

American (AMR)

AC:

AN:

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

East Asian (EAS)

AF:

0.00

AC:

AN:

South Asian (SAS)

AF:

0.00

AC:

AN:

European-Finnish (FIN)

AF:

0.0250

AC:

AN:

Middle Eastern (MID)

AC:

AN:

European-Non Finnish (NFE)

AF:

0.00588

AC:

AN:

170

Other (OTH)

AF:

0.00

AC:

AN:

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.275

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00123

AC:

187

AN:

152296

Hom.:

Cov.:

AF XY:

0.00132

AC XY:

AN XY:

74480

show subpopulations

African (AFR)

AF:

0.0000481

AC:

AN:

41560

American (AMR)

AF:

0.000392

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00288

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00462

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00173

AC:

118

AN:

68020

Other (OTH)

AF:

0.000947

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.499

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00154

Hom.:

Bravo

AF:

0.000824

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Spinocerebellar ataxia type 23 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.64

CADD

Benign

(source)

DANN

Benign

0.76

PhyloP100

1.3

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over