2-230168920-T-A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_080424.4(SP110):​c.*204A>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000026 in 76,864 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 22)
Exomes 𝑓: 0.000010 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

SP110
NM_080424.4 3_prime_UTR

Scores

2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.446

Publications

0 publications found
Variant links:
Genes affected
SP110 (HGNC:5401): (SP110 nuclear body protein) The nuclear body is a multiprotein complex that may have a role in the regulation of gene transcription. This gene is a member of the SP100/SP140 family of nuclear body proteins and encodes a leukocyte-specific nuclear body component. The protein can function as an activator of gene transcription and may serve as a nuclear hormone receptor coactivator. In addition, it has been suggested that the protein may play a role in ribosome biogenesis and in the induction of myeloid cell differentiation. Alternative splicing has been observed for this gene and three transcript variants, encoding distinct isoforms, have been identified. [provided by RefSeq, Jul 2008]
SP110 Gene-Disease associations (from GenCC):
  • hepatic veno-occlusive disease-immunodeficiency syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, ClinGen, Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.89).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SP110NM_080424.4 linkc.*204A>T 3_prime_UTR_variant Exon 19 of 19 ENST00000258381.11 NP_536349.3 Q9HB58-6

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SP110ENST00000258381.11 linkc.*204A>T 3_prime_UTR_variant Exon 19 of 19 2 NM_080424.4 ENSP00000258381.6 Q9HB58-6

Frequencies

GnomAD3 genomes
AF:
0.0000260
AC:
2
AN:
76864
Hom.:
0
Cov.:
22
show subpopulations
Gnomad AFR
AF:
0.0000466
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:
0.000958
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.0000105
AC:
3
AN:
287066
Hom.:
0
Cov.:
0
AF XY:
0.00
AC XY:
0
AN XY:
153444
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
8560
American (AMR)
AF:
0.0000739
AC:
1
AN:
13534
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
8642
East Asian (EAS)
AF:
0.00
AC:
0
AN:
20524
South Asian (SAS)
AF:
0.00
AC:
0
AN:
34606
European-Finnish (FIN)
AF:
0.0000622
AC:
1
AN:
16074
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
1182
European-Non Finnish (NFE)
AF:
0.00000596
AC:
1
AN:
167862
Other (OTH)
AF:
0.00
AC:
0
AN:
16082
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.225
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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
AF:
0.0000260
AC:
2
AN:
76864
Hom.:
0
Cov.:
22
AF XY:
0.0000527
AC XY:
2
AN XY:
37936
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000466
AC:
1
AN:
21454
American (AMR)
AF:
0.00
AC:
0
AN:
8588
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
1614
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3218
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2524
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
4920
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
146
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
33060
Other (OTH)
AF:
0.000958
AC:
1
AN:
1044
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000081), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.300
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.000674
Hom.:
0

ClinVar

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

Submissions by phenotype

Hepatic veno-occlusive disease-immunodeficiency syndrome Uncertain:1
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.89
CADD
Benign
4.1
DANN
Benign
0.14
PhyloP100
-0.45
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs76598053; hg19: chr2-231033636; API