chr4-80202512-C-T

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_001099403.2(PRDM8):​c.1050C>T​(p.Cys350=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000666 in 1,506,912 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0039 ( 3 hom., cov: 32)
Exomes 𝑓: 0.00031 ( 1 hom. )

Consequence

PRDM8
NM_001099403.2 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.574
Variant links:
Genes affected
PRDM8 (HGNC:13993): (PR/SET domain 8) This gene encodes a protein that belongs to a conserved family of histone methyltransferases that predominantly act as negative regulators of transcription. The encoded protein contains an N-terminal Su(var)3-9, Enhancer-of-zeste, and Trithorax (SET) domain and a double zinc-finger domain. Knockout of this gene in mouse results in mistargeting by neurons of the dorsal telencephalon, abnormal itch-like behavior, and impaired differentiation of rod bipolar cells. In humans, the protein has been shown to interact with the phosphatase laforin and the ubiquitin ligase malin, which regulate glycogen construction in the cytoplasm. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.71).
BP6
Variant 4-80202512-C-T is Benign according to our data. Variant chr4-80202512-C-T is described in ClinVar as [Benign]. Clinvar id is 475663.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.574 with no splicing effect.
BS2
High Homozygotes in GnomAd4 at 3 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PRDM8NM_001099403.2 linkuse as main transcriptc.1050C>T p.Cys350= synonymous_variant 4/4 ENST00000415738.3
PRDM8NM_020226.4 linkuse as main transcriptc.1050C>T p.Cys350= synonymous_variant 10/10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PRDM8ENST00000415738.3 linkuse as main transcriptc.1050C>T p.Cys350= synonymous_variant 4/41 NM_001099403.2 P1Q9NQV8-1
PRDM8ENST00000339711.8 linkuse as main transcriptc.1050C>T p.Cys350= synonymous_variant 10/101 P1Q9NQV8-1
PRDM8ENST00000515013.5 linkuse as main transcriptc.1050C>T p.Cys350= synonymous_variant 10/101
PRDM8ENST00000504452.5 linkuse as main transcriptc.1050C>T p.Cys350= synonymous_variant 8/85 P1Q9NQV8-1

Frequencies

GnomAD3 genomes
AF:
0.00391
AC:
588
AN:
150558
Hom.:
3
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0138
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000795
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:
0.0000148
Gnomad OTH
AF:
0.00383
GnomAD3 exomes
AF:
0.000593
AC:
80
AN:
134828
Hom.:
1
AF XY:
0.000447
AC XY:
33
AN XY:
73768
show subpopulations
Gnomad AFR exome
AF:
0.0109
Gnomad AMR exome
AF:
0.000328
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:
0.0000385
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000307
AC:
417
AN:
1356208
Hom.:
1
Cov.:
38
AF XY:
0.000248
AC XY:
166
AN XY:
670134
show subpopulations
Gnomad4 AFR exome
AF:
0.0117
Gnomad4 AMR exome
AF:
0.000374
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:
0.0000188
Gnomad4 OTH exome
AF:
0.000450
GnomAD4 genome
AF:
0.00390
AC:
587
AN:
150704
Hom.:
3
Cov.:
32
AF XY:
0.00373
AC XY:
275
AN XY:
73680
show subpopulations
Gnomad4 AFR
AF:
0.0137
Gnomad4 AMR
AF:
0.000794
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000148
Gnomad4 OTH
AF:
0.00379
Alfa
AF:
0.00265
Hom.:
0
Bravo
AF:
0.00398

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Early-onset Lafora body disease Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 05, 2024- -
not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
PRDM8-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJul 11, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.71
CADD
Benign
9.3
DANN
Benign
0.90

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs374280707; hg19: chr4-81123666; API