rs146664036

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 2P and 10B. PM5BP4_StrongBP6_ModerateBS2

The NM_017613.4(DONSON):ā€‹c.1466A>Gā€‹(p.Lys489Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000362 in 1,614,182 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K489T) has been classified as Pathogenic.

Frequency

Genomes: š‘“ 0.00033 ( 0 hom., cov: 32)
Exomes š‘“: 0.00037 ( 7 hom. )

Consequence

DONSON
NM_017613.4 missense

Scores

18

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: -2.70
Variant links:
Genes affected
DONSON (HGNC:2993): (DNA replication fork stabilization factor DONSON) This gene lies downstream of the SON gene and spans 10 kb on chromosome 21. The function of this gene is unknown. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

PM5
Other missense variant is known to change same aminoacid residue: Variant chr21-33579447-T-G is described in Lovd as [Pathogenic].
BP4
Computational evidence support a benign effect (MetaRNN=0.005269617).
BP6
Variant 21-33579447-T-C is Benign according to our data. Variant chr21-33579447-T-C is described in ClinVar as [Benign]. Clinvar id is 737509.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Homozygotes in GnomAdExome4 at 7 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DONSONNM_017613.4 linkuse as main transcriptc.1466A>G p.Lys489Arg missense_variant 9/10 ENST00000303071.10 NP_060083.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DONSONENST00000303071.10 linkuse as main transcriptc.1466A>G p.Lys489Arg missense_variant 9/101 NM_017613.4 ENSP00000307143 P1Q9NYP3-1

Frequencies

GnomAD3 genomes
AF:
0.000335
AC:
51
AN:
152202
Hom.:
0
Cov.:
32
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:
0.00981
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:
0.000827
AC:
208
AN:
251470
Hom.:
2
AF XY:
0.000677
AC XY:
92
AN XY:
135912
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0112
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000365
AC:
534
AN:
1461862
Hom.:
7
Cov.:
31
AF XY:
0.000342
AC XY:
249
AN XY:
727232
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0128
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.000348
GnomAD4 genome
AF:
0.000335
AC:
51
AN:
152320
Hom.:
0
Cov.:
32
AF XY:
0.000416
AC XY:
31
AN XY:
74488
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00983
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.00165
Hom.:
0
Bravo
AF:
0.000608
ExAC
AF:
0.000906
AC:
110

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpNov 24, 2023- -
DONSON-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesAug 14, 2024This 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
AlphaMissense
Benign
0.065
BayesDel_addAF
Benign
-0.55
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
0.0020
DANN
Benign
0.84
DEOGEN2
Benign
0.0026
.;T
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.065
N
LIST_S2
Benign
0.37
T;T
MetaRNN
Benign
0.0053
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.45
.;N
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.23
T
PROVEAN
Benign
-0.72
N;N
REVEL
Benign
0.073
Sift
Benign
0.54
T;T
Sift4G
Benign
1.0
T;T
Polyphen
0.0010
B;B
Vest4
0.064
MVP
0.23
MPC
0.071
ClinPred
0.028
T
GERP RS
-9.3
Varity_R
0.029
gMVP
0.33

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs146664036; hg19: chr21-34951753; API