NM_030962.4:c.2014A>G

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBS1_Supporting

The NM_030962.4(SBF2):​c.2014A>G​(p.Thr672Ala) variant causes a missense change. The variant allele was found at a frequency of 0.000031 in 1,614,104 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. T672T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

SBF2
NM_030962.4 missense

Scores

3
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.25

Publications

0 publications found
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]
SBF2 Gene-Disease associations (from GenCC):
  • Charcot-Marie-Tooth disease type 4B2
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, PanelApp Australia, Ambry Genetics, G2P, Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.16629577).
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0000723 (11/152224) while in subpopulation AFR AF = 0.000217 (9/41456). AF 95% confidence interval is 0.000113. There are 0 homozygotes in GnomAd4. There are 6 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_030962.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SBF2
NM_030962.4
MANE Select
c.2014A>Gp.Thr672Ala
missense
Exon 18 of 40NP_112224.1Q86WG5-1
SBF2
NM_001386339.1
c.2014A>Gp.Thr672Ala
missense
Exon 18 of 41NP_001373268.1A0A8I5KQ02
SBF2
NM_001424318.1
c.2050A>Gp.Thr684Ala
missense
Exon 19 of 41NP_001411247.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SBF2
ENST00000256190.13
TSL:1 MANE Select
c.2014A>Gp.Thr672Ala
missense
Exon 18 of 40ENSP00000256190.8Q86WG5-1
SBF2
ENST00000533770.6
TSL:1
c.2014A>Gp.Thr672Ala
missense
Exon 18 of 26ENSP00000509247.1Q86WG5-3
ENSG00000255476
ENST00000533659.1
TSL:1
n.134+19036T>C
intron
N/A

Frequencies

GnomAD3 genomes
AF:
0.0000723
AC:
11
AN:
152224
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000217
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000119
AC:
3
AN:
251468
AF XY:
0.00000736
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000267
AC:
39
AN:
1461880
Hom.:
0
Cov.:
31
AF XY:
0.0000275
AC XY:
20
AN XY:
727240
show subpopulations
African (AFR)
AF:
0.000299
AC:
10
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.0000504
AC:
2
AN:
39698
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000207
AC:
23
AN:
1112004
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
3
6
8
11
14
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000723
AC:
11
AN:
152224
Hom.:
0
Cov.:
32
AF XY:
0.0000807
AC XY:
6
AN XY:
74370
show subpopulations
African (AFR)
AF:
0.000217
AC:
9
AN:
41456
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5204
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68040
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.566
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

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
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000453
ExAC
AF:
0.0000165
AC:
2

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Charcot-Marie-Tooth disease type 4 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.073
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.39
CADD
Uncertain
23
DANN
Benign
0.97
DEOGEN2
Benign
0.064
T
Eigen
Benign
-0.17
Eigen_PC
Benign
0.051
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.91
D
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.17
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.70
N
PhyloP100
6.3
PrimateAI
Uncertain
0.67
T
PROVEAN
Benign
0.11
N
REVEL
Benign
0.19
Sift
Benign
1.0
T
Sift4G
Benign
0.75
T
Polyphen
0.045
B
Vest4
0.29
MutPred
0.37
Gain of helix (P = 0.0128)
MVP
0.36
MPC
0.18
ClinPred
0.24
T
GERP RS
5.5
Varity_R
0.26
gMVP
0.31
Mutation Taster
=66/34
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: rs770839510; hg19: chr11-9879859; API