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21-33559880-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP6_Moderate

The ENST00000300278.8(SON):c.6661C>T(p.Arg2221Trp) variant causes a missense change. The variant allele was found at a frequency of 0.00000499 in 1,604,724 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

SON
ENST00000300278.8 missense

Scores

1
6
8

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 3.60
Variant links:
Genes affected
SON (HGNC:11183): (SON DNA and RNA binding protein) This gene encodes a protein that contains multiple simple repeats. The encoded protein binds RNA and promotes pre-mRNA splicing, particularly of transcripts with poor splice sites. The protein also recognizes a specific DNA sequence found in the human hepatitis B virus (HBV) and represses HBV core promoter activity. There is a pseudogene for this gene on chromosome 1. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

BP6
Variant 21-33559880-C-T is Benign according to our data. Variant chr21-33559880-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 2133812.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SONNM_138927.4 linkuse as main transcriptc.6657+105C>T intron_variant ENST00000356577.10
SONNM_032195.3 linkuse as main transcriptc.6661C>T p.Arg2221Trp missense_variant 7/7
SONNM_001291412.3 linkuse as main transcriptc.741+105C>T intron_variant
SONNR_103797.2 linkuse as main transcriptn.6712+105C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SONENST00000356577.10 linkuse as main transcriptc.6657+105C>T intron_variant 1 NM_138927.4 P3P18583-1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152086
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
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
GnomAD4 exome
AF:
0.00000482
AC:
7
AN:
1452638
Hom.:
0
Cov.:
32
AF XY:
0.00000139
AC XY:
1
AN XY:
721162
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000117
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000543
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152086
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74284
show subpopulations
Gnomad4 AFR
AF:
0.0000242
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

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeSep 01, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.44
Cadd
Uncertain
24
Dann
Uncertain
1.0
Eigen
Uncertain
0.66
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Uncertain
0.80
D
LIST_S2
Benign
0.64
T
M_CAP
Benign
0.054
D
MetaRNN
Uncertain
0.58
D
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
D;D;D;N
PROVEAN
Benign
-1.4
N
REVEL
Benign
0.16
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.0020
D
Polyphen
1.0
D
Vest4
0.61
MutPred
0.36
Loss of disorder (P = 0.0645);
MVP
0.19
ClinPred
0.80
D
GERP RS
5.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

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: rs2086039003; hg19: chr21-34932186; API