Genetic Variant PRDM9:p.His762Asp (chr5-23527372-C-G) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_020227.4(PRDM9):c.2284C>G(p.His762Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict 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. H762L) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 11)

Exomes 𝑓: 0.0000094 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

PRDM9
NM_020227.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -20.0

Publications

2 publications found

Variant links:

Genes affected

PRDM9 (HGNC:13994): (PR/SET domain 9) The protein encoded by this gene is a zinc finger protein with histone methyltransferase activity that catalyzes histone H3 lysine 4 trimethylation (H3K4me3) during meiotic prophase. This protein contains multiple domains, including a Kruppel-associated box (KRAB) domain, an SSX repression domain (SSXRD), a PRD1-BF1 and RIZ homologous region, a subclass of SET (PR/SET) domain, and a tandem array of C2H2 zinc fingers. The zinc finger array recognizes a short sequence motif, leading to local H3K4me3, and meiotic recombination hotspot activity. The observed allelic variation alters the DNA-binding sequence specificity of the protein, resulting in distinct meiotic recombination hotspots amongst individuals and populations. Multiple alternate alleles of this gene have been described. [provided by RefSeq, Jul 2015]

PRDM9 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0044296086).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020227.4. 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
	PRDM9	NM_020227.4	MANE Select	c.2284C>G	p.His762Asp	missense	Exon 11 of 11	NP_064612.2	Q9NQV7
	PRDM9	NM_001376900.1		c.2284C>G	p.His762Asp	missense	Exon 11 of 11	NP_001363829.1	Q9NQV7

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRDM9	ENST00000296682.4	TSL:1 MANE Select	c.2284C>G	p.His762Asp	missense	Exon 11 of 11	ENSP00000296682.4	Q9NQV7
	PRDM9	ENST00000502755.6	TSL:4	c.2284C>G	p.His762Asp	missense	Exon 11 of 11	ENSP00000425471.2	Q9NQV7

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000870

AC:

AN:

229848

AF XY:

0.0000159

show subpopulations

Gnomad AFR exome

AF:

0.0000835

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

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00000941

AC:

AN:

1381014

Hom.:

Cov.:

AF XY:

0.0000160

AC XY:

AN XY:

686948

show subpopulations

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

African (AFR)

AF:

0.000152

AC:

AN:

26328

American (AMR)

AF:

0.0000257

AC:

AN:

38894

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23020

East Asian (EAS)

AF:

0.0000580

AC:

AN:

34496

South Asian (SAS)

AF:

0.0000245

AC:

AN:

81760

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50200

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5084

European-Non Finnish (NFE)

AF:

0.00000375

AC:

AN:

1066898

Other (OTH)

AF:

0.00

AC:

AN:

54334

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.0000000217486), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.367

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

Cov.:

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.63

BayesDel_addAF

Benign

-0.55

BayesDel_noAF

Benign

-0.84

CADD

Benign

0.0020

(source)

DANN

Benign

0.37

DEOGEN2

Benign

0.038

Eigen

Benign

-2.8

Eigen_PC

Benign

-2.9

FATHMM_MKL

Benign

0.00015

LIST_S2

Benign

0.15

MetaRNN

Benign

0.0044

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.0

PhyloP100

-20

PrimateAI

Uncertain

0.50

PROVEAN

Benign

-1.1

REVEL

Benign

0.014

Sift

Benign

0.33

Sift4G

Benign

0.64

Polyphen

0.0

Vest4

0.091

MutPred

0.44

Loss of MoRF binding (P = 0.0632)

MVP

0.040

MPC

0.17

ClinPred

0.070

GERP RS

-5.9

Varity_R

0.14

gMVP

0.093

Mutation Taster

=99/1

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

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