chr11-10031175-A-G

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP6

The NM_030962.4(SBF2):​c.280-5T>C variant causes a splice region, splice polypyrimidine tract, intron change. The variant allele was found at a frequency of 0.0000508 in 1,612,844 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000047 ( 0 hom. )

Consequence

SBF2
NM_030962.4 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.1993
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 6.63
Variant links:
Genes affected
SBF2 (HGNC:2135): (SET binding factor 2) This gene encodes a pseudophosphatase and member of the myotubularin-related protein family. This gene maps within the CMT4B2 candidate region of chromosome 11p15 and mutations in this gene have been associated with Charcot-Marie-Tooth Disease, type 4B2. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.28).
BP6
Variant 11-10031175-A-G is Benign according to our data. Variant chr11-10031175-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 543508.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SBF2NM_030962.4 linkuse as main transcriptc.280-5T>C splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000256190.13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SBF2ENST00000256190.13 linkuse as main transcriptc.280-5T>C splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_030962.4 P3Q86WG5-1

Frequencies

GnomAD3 genomes
AF:
0.0000920
AC:
14
AN:
152192
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000717
AC:
18
AN:
250972
Hom.:
0
AF XY:
0.0000516
AC XY:
7
AN XY:
135636
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00149
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000466
AC:
68
AN:
1460652
Hom.:
0
Cov.:
30
AF XY:
0.0000427
AC XY:
31
AN XY:
726622
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00184
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000810
Gnomad4 OTH exome
AF:
0.000182
GnomAD4 genome
AF:
0.0000920
AC:
14
AN:
152192
Hom.:
0
Cov.:
32
AF XY:
0.000108
AC XY:
8
AN XY:
74348
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000132
Hom.:
0
Bravo
AF:
0.0000718
EpiCase
AF:
0.0000547
EpiControl
AF:
0.00

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 02, 2023The c.280-5T>C intronic alteration consists of a T to C substitution 5 nucleotides before coding exon 4 in the SBF2 gene. Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Charcot-Marie-Tooth disease Benign:1
Likely benign, criteria provided, single submitterclinical testingMolecular Genetics Laboratory, London Health Sciences Centre-- -
Charcot-Marie-Tooth disease type 4 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 08, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.28
CADD
Benign
15
DANN
Benign
0.97

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.20
dbscSNV1_RF
Benign
0.41
SpliceAI score (max)
0.060
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: rs368118378; hg19: chr11-10052722; API