Genetic Variant NM_020709.3:c.1696G>T (chr19-46493770-C-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020709.3(PNMA8B):c.1696G>T(p.Gly566Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000101 in 1,386,332 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign 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. G566S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000097 ( 0 hom. )

Consequence

PNMA8B
NM_020709.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.11

Publications

0 publications found

Variant links:

Genes affected

PNMA8B (HGNC:29206): (PNMA family member 8B)

PNMA8B links:

ENSG00000291145 (HGNC:):

ENSG00000291145 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.18326381).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020709.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PNMA8B	NM_020709.3	MANE Select	c.1696G>T	p.Gly566Cys	missense	Exon 1 of 1	NP_065760.1	Q9ULN7-5

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PNMA8B	ENST00000599531.2	TSL:6 MANE Select	c.1696G>T	p.Gly566Cys	missense	Exon 1 of 1	ENSP00000473036.1	Q9ULN7-5
PNMA8B	ENST00000594749.1	TSL:5	n.165+1945G>T		intron	N/A
ENSG00000291145	ENST00000602017.8	TSL:3	n.425-12330G>T		intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152116

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:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00

AC:

AN:

25610

AF XY:

0.00

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000972

AC:

AN:

1234216

Hom.:

Cov.:

AF XY:

0.00000666

AC XY:

AN XY:

600970

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

24192

American (AMR)

AF:

0.00

AC:

AN:

12166

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

18076

East Asian (EAS)

AF:

0.00

AC:

AN:

28714

South Asian (SAS)

AF:

0.00

AC:

AN:

55034

European-Finnish (FIN)

AF:

0.00

AC:

AN:

31390

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4078

European-Non Finnish (NFE)

AF:

0.0000119

AC:

AN:

1009806

Other (OTH)

AF:

0.00

AC:

AN:

50760

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.558

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152116

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74306

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41452

American (AMR)

AF:

0.00

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5170

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

67980

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.650

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

ExAC

AF:

0.0000229

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.55

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.50

CADD

Benign

(source)

DANN

Benign

0.91

FATHMM_MKL

Benign

0.094

LIST_S2

Benign

0.39

M_CAP

Benign

0.058

MetaRNN

Benign

0.18

PhyloP100

1.1

PrimateAI

Pathogenic

0.83

Sift4G

Uncertain

0.013

Vest4

0.22

MVP

0.49

GERP RS

1.3

Varity_R

0.19

gMVP

0.12

Mutation Taster

=97/3

polymorphism

(source)

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over