rs552864142

Variant summary

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

The NM_032108.4(SEMA6B):​c.2593G>T​(p.Ala865Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000233 in 1,230,714 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/19 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. A865G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

SEMA6B
NM_032108.4 missense

Scores

1
1
12

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: -0.0580

Publications

0 publications found
Variant links:
Genes affected
SEMA6B (HGNC:10739): (semaphorin 6B) This gene encodes a member of the semaphorin family, a group of proteins characterized by the presence of a conserved semaphorin (sema) domain. Whereas some semaphorins are transmembrane proteins, others are secreted. Semaphorins play a major role in axon guidance. The protein encoded by this gene may be involved in both peripheral and central nervous system development. [provided by RefSeq, Jul 2008]
SEMA6B Gene-Disease associations (from GenCC):
  • progressive myoclonus epilepsy
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • epilepsy, progressive myoclonic, 11
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • intellectual disability
    Inheritance: AD Classification: STRONG Submitted by: PanelApp Australia

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=0.0014801323).
BP6
Variant 19-4543675-C-A is Benign according to our data. Variant chr19-4543675-C-A is described in ClinVar as Likely_benign. ClinVar VariationId is 2355486.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0011 (168/152274) while in subpopulation AFR AF = 0.00385 (160/41570). AF 95% confidence interval is 0.00336. There are 0 homozygotes in GnomAd4. There are 77 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High AC in GnomAd4 at 168 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032108.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SEMA6B
NM_032108.4
MANE Select
c.2593G>Tp.Ala865Ser
missense
Exon 17 of 17NP_115484.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SEMA6B
ENST00000586582.6
TSL:1 MANE Select
c.2593G>Tp.Ala865Ser
missense
Exon 17 of 17ENSP00000467290.1Q9H3T3-1
SEMA6B
ENST00000586965.1
TSL:1
c.1852-579G>T
intron
N/AENSP00000465722.1Q9H3T3-3
SEMA6B
ENST00000676793.2
c.2593G>Tp.Ala865Ser
missense
Exon 17 of 17ENSP00000503414.1Q9H3T3-1

Frequencies

GnomAD3 genomes
AF:
0.00106
AC:
162
AN:
152166
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00372
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00318
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000955
GnomAD2 exomes
AF:
0.00169
AC:
1
AN:
590
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.167
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:
0.000110
AC:
119
AN:
1078440
Hom.:
0
Cov.:
32
AF XY:
0.000110
AC XY:
56
AN XY:
509222
show subpopulations
African (AFR)
AF:
0.00450
AC:
103
AN:
22886
American (AMR)
AF:
0.000119
AC:
1
AN:
8386
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
14306
East Asian (EAS)
AF:
0.00
AC:
0
AN:
26480
South Asian (SAS)
AF:
0.00
AC:
0
AN:
19528
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
21106
Middle Eastern (MID)
AF:
0.00102
AC:
3
AN:
2944
European-Non Finnish (NFE)
AF:
0.00000218
AC:
2
AN:
919242
Other (OTH)
AF:
0.000230
AC:
10
AN:
43562
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.471
Heterozygous variant carriers
0
7
13
20
26
33
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.00110
AC:
168
AN:
152274
Hom.:
0
Cov.:
32
AF XY:
0.00103
AC XY:
77
AN XY:
74448
show subpopulations
African (AFR)
AF:
0.00385
AC:
160
AN:
41570
American (AMR)
AF:
0.000327
AC:
5
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00342
AC:
1
AN:
292
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67988
Other (OTH)
AF:
0.000945
AC:
2
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.494
Heterozygous variant carriers
0
8
16
24
32
40
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.000143
Hom.:
0
Bravo
AF:
0.00123
ExAC
AF:
0.0000191
AC:
1

ClinVar

ClinVar submissions
Significance:Likely benign
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
Inborn genetic diseases (1)
-
-
1
SEMA6B-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.074
BayesDel_addAF
Benign
-0.63
T
BayesDel_noAF
Benign
-0.68
CADD
Benign
10
DANN
Uncertain
0.98
DEOGEN2
Benign
0.056
T
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.011
N
LIST_S2
Benign
0.41
T
MetaRNN
Benign
0.0015
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.90
L
PhyloP100
-0.058
PrimateAI
Pathogenic
0.83
D
Sift4G
Benign
0.34
T
Polyphen
0.020
B
Vest4
0.13
MutPred
0.13
Gain of glycosylation at A865 (P = 0.029)
MVP
0.043
MPC
1.7
ClinPred
0.026
T
GERP RS
0.40
Varity_R
0.060
gMVP
0.30
Mutation Taster
=90/10
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: rs552864142; hg19: chr19-4543687; API