1-15935970-A-G

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_015001.3(SPEN):​c.9730A>G​(p.Thr3244Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000567 in 758,952 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T3244P) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000015 ( 0 hom., cov: 9)
Exomes 𝑓: 0.000061 ( 0 hom. )

Consequence

SPEN
NM_015001.3 missense

Scores

18

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.451

Publications

5 publications found
Variant links:
Genes affected
SPEN (HGNC:17575): (spen family transcriptional repressor) This gene encodes a hormone inducible transcriptional repressor. Repression of transcription by this gene product can occur through interactions with other repressors, by the recruitment of proteins involved in histone deacetylation, or through sequestration of transcriptional activators. The product of this gene contains a carboxy-terminal domain that permits binding to other corepressor proteins. This domain also permits interaction with members of the NuRD complex, a nucleosome remodeling protein complex that contains deacetylase activity. In addition, this repressor contains several RNA recognition motifs that confer binding to a steroid receptor RNA coactivator; this binding can modulate the activity of both liganded and nonliganded steroid receptors. [provided by RefSeq, Jul 2008]
SPEN Gene-Disease associations (from GenCC):
  • Radio-Tartaglia syndrome
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P
  • complex neurodevelopmental disorder
    Inheritance: AD Classification: NO_KNOWN Submitted by: Illumina

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.023690045).
BP6
Variant 1-15935970-A-G is Benign according to our data. Variant chr1-15935970-A-G is described in ClinVar as Likely_benign. ClinVar VariationId is 3168965.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population nfe. GnomAdExome4 allele frequency = 0.0000605 (42/693710) while in subpopulation NFE AF = 0.0000771 (39/506080). AF 95% confidence interval is 0.0000577. There are 0 homozygotes in GnomAdExome4. There are 16 alleles in the male GnomAdExome4 subpopulation. Median coverage is 35. This position passed quality control check.
BS2
High AC in GnomAdExome4 at 42 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SPENNM_015001.3 linkc.9730A>G p.Thr3244Ala missense_variant Exon 11 of 15 ENST00000375759.8 NP_055816.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SPENENST00000375759.8 linkc.9730A>G p.Thr3244Ala missense_variant Exon 11 of 15 1 NM_015001.3 ENSP00000364912.3
SPENENST00000704274.1 linkc.5326A>G p.Thr1776Ala missense_variant Exon 1 of 4 ENSP00000515812.1
SPENENST00000438066.2 linkn.*10581A>G non_coding_transcript_exon_variant Exon 11 of 15 3 ENSP00000388021.2
SPENENST00000438066.2 linkn.*10581A>G 3_prime_UTR_variant Exon 11 of 15 3 ENSP00000388021.2

Frequencies

GnomAD3 genomes
AF:
0.0000153
AC:
1
AN:
65242
Hom.:
0
Cov.:
9
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000329
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00
AC:
0
AN:
111310
AF XY:
0.00
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS 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:
0.0000605
AC:
42
AN:
693710
Hom.:
0
Cov.:
35
AF XY:
0.0000455
AC XY:
16
AN XY:
351402
show subpopulations
African (AFR)
AF:
0.0000602
AC:
1
AN:
16600
American (AMR)
AF:
0.00
AC:
0
AN:
28614
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
13334
East Asian (EAS)
AF:
0.00
AC:
0
AN:
20288
South Asian (SAS)
AF:
0.0000186
AC:
1
AN:
53682
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
24548
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
1970
European-Non Finnish (NFE)
AF:
0.0000771
AC:
39
AN:
506080
Other (OTH)
AF:
0.0000350
AC:
1
AN:
28594
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.467
Heterozygous variant carriers
0
3
5
8
10
13
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:
0.0000153
AC:
1
AN:
65242
Hom.:
0
Cov.:
9
AF XY:
0.0000323
AC XY:
1
AN XY:
30940
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
17294
American (AMR)
AF:
0.00
AC:
0
AN:
6440
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
1602
East Asian (EAS)
AF:
0.00
AC:
0
AN:
1984
South Asian (SAS)
AF:
0.00
AC:
0
AN:
1876
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
4270
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
100
European-Non Finnish (NFE)
AF:
0.0000329
AC:
1
AN:
30374
Other (OTH)
AF:
0.00
AC:
0
AN:
892
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.675
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
ExAC
AF:
0.00000879
AC:
1

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Benign:1
Oct 05, 2023
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.069
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.82
CADD
Benign
0.35
DANN
Benign
0.15
DEOGEN2
Benign
0.081
T
Eigen
Benign
-1.6
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.090
N
LIST_S2
Benign
0.25
T
M_CAP
Benign
0.0027
T
MetaRNN
Benign
0.024
T
MetaSVM
Benign
-0.93
T
MutationAssessor
Benign
0.0
N
PhyloP100
0.45
PrimateAI
Benign
0.45
T
PROVEAN
Benign
-0.12
N
REVEL
Benign
0.027
Sift
Benign
1.0
T
Sift4G
Benign
0.92
T
Vest4
0.045
ClinPred
0.017
T
GERP RS
-0.36
Varity_R
0.025
gMVP
0.079
Mutation Taster
=98/2
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: rs776474446; hg19: chr1-16262465; API