5-23509088-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_020227.4(PRDM9):​c.55G>A​(p.Glu19Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000719 in 1,614,140 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000044 ( 0 hom. )

Consequence

PRDM9
NM_020227.4 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.25
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0149234235).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PRDM9NM_020227.4 linkuse as main transcriptc.55G>A p.Glu19Lys missense_variant 2/11 ENST00000296682.4
PRDM9NM_001376900.1 linkuse as main transcriptc.55G>A p.Glu19Lys missense_variant 2/11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PRDM9ENST00000296682.4 linkuse as main transcriptc.55G>A p.Glu19Lys missense_variant 2/111 NM_020227.4 P1
PRDM9ENST00000502755.6 linkuse as main transcriptc.55G>A p.Glu19Lys missense_variant 2/114
PRDM9ENST00000635252.1 linkuse as main transcriptc.17-832G>A intron_variant 5

Frequencies

GnomAD3 genomes
AF:
0.000335
AC:
51
AN:
152204
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00123
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000801
AC:
20
AN:
249538
Hom.:
0
AF XY:
0.0000665
AC XY:
9
AN XY:
135396
show subpopulations
Gnomad AFR exome
AF:
0.00123
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
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:
0.0000445
AC:
65
AN:
1461818
Hom.:
0
Cov.:
31
AF XY:
0.0000385
AC XY:
28
AN XY:
727220
show subpopulations
Gnomad4 AFR exome
AF:
0.00173
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.000335
AC:
51
AN:
152322
Hom.:
0
Cov.:
32
AF XY:
0.000269
AC XY:
20
AN XY:
74466
show subpopulations
Gnomad4 AFR
AF:
0.00123
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000555
Hom.:
0
Bravo
AF:
0.000450
ESP6500AA
AF:
0.00152
AC:
6
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000910
AC:
11

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 12, 2021The c.55G>A (p.E19K) alteration is located in exon 2 (coding exon 1) of the PRDM9 gene. This alteration results from a G to A substitution at nucleotide position 55, causing the glutamic acid (E) at amino acid position 19 to be replaced by a lysine (K). 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
Benign
0.090
BayesDel_addAF
Benign
-0.51
T
BayesDel_noAF
Benign
-0.53
CADD
Benign
8.0
DANN
Benign
0.95
DEOGEN2
Benign
0.045
.;T
Eigen
Benign
-0.97
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.012
N
LIST_S2
Benign
0.62
T;T
M_CAP
Benign
0.0010
T
MetaRNN
Benign
0.015
T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
1.9
.;M
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-2.2
N;N
REVEL
Benign
0.015
Sift
Uncertain
0.0070
D;D
Sift4G
Benign
0.061
T;T
Polyphen
0.12
.;B
Vest4
0.20
MVP
0.15
MPC
0.14
ClinPred
0.035
T
GERP RS
-0.20
Varity_R
0.082
gMVP
0.077

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.

Other links and lift over

dbSNP: rs201296788; hg19: chr5-23509197; COSMIC: COSV99690234; API