rs267607035

Variant summary

Our verdict is Pathogenic. The variant received 14 ACMG points: 14P and 0B. PM2PP3_StrongPP5_Very_Strong

The NM_016955.4(SEPSECS):​c.715G>A​(p.Ala239Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000122 in 1,556,290 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

SEPSECS
NM_016955.4 missense

Scores

6
11
1

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:8

Conservation

PhyloP100: 2.94

Publications

11 publications found
Variant links:
Genes affected
SEPSECS (HGNC:30605): (Sep (O-phosphoserine) tRNA:Sec (selenocysteine) tRNA synthase) The amino acid selenocysteine is the only amino acid that does not have its own tRNA synthetase. Instead, this amino acid is synthesized on its cognate tRNA in a three step process. The protein encoded by this gene catalyzes the third step in the process, the conversion of O-phosphoseryl-tRNA(Sec) to selenocysteinyl-tRNA(Sec).[provided by RefSeq, Mar 2011]
SEPSECS Gene-Disease associations (from GenCC):
  • pontocerebellar hypoplasia type 2D
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, Broad Center for Mendelian Genomics, Ambry Genetics, PanelApp Australia, Labcorp Genetics (formerly Invitae)
  • pontocerebellar hypoplasia type 2
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • progressive cerebello-cerebral atrophy
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 14 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.968
PP5
Variant 4-25152049-C-T is Pathogenic according to our data. Variant chr4-25152049-C-T is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 18401.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016955.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SEPSECS
NM_016955.4
MANE Select
c.715G>Ap.Ala239Thr
missense
Exon 6 of 11NP_058651.3Q9HD40-1
SEPSECS
NM_001410714.1
c.970G>Ap.Ala324Thr
missense
Exon 7 of 12NP_001397643.1A0A7P0TA23

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SEPSECS
ENST00000382103.7
TSL:1 MANE Select
c.715G>Ap.Ala239Thr
missense
Exon 6 of 11ENSP00000371535.2Q9HD40-1
SEPSECS
ENST00000358971.7
TSL:1
n.*513G>A
non_coding_transcript_exon
Exon 7 of 12ENSP00000351857.3J3KP25
SEPSECS
ENST00000514585.5
TSL:1
n.*416G>A
non_coding_transcript_exon
Exon 5 of 10ENSP00000421880.1Q9HD40-2

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152040
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000576
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:
0.00
GnomAD2 exomes
AF:
0.0000199
AC:
5
AN:
251078
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.0000993
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:
0.0000121
AC:
17
AN:
1404250
Hom.:
0
Cov.:
24
AF XY:
0.0000142
AC XY:
10
AN XY:
702264
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32320
American (AMR)
AF:
0.0000672
AC:
3
AN:
44630
Ashkenazi Jewish (ASJ)
AF:
0.000194
AC:
5
AN:
25740
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39240
South Asian (SAS)
AF:
0.0000235
AC:
2
AN:
84972
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53372
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5656
European-Non Finnish (NFE)
AF:
0.00000189
AC:
2
AN:
1059850
Other (OTH)
AF:
0.0000855
AC:
5
AN:
58470
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.449
Heterozygous variant carriers
0
1
3
4
6
7
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:
0.0000132
AC:
2
AN:
152040
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74244
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41422
American (AMR)
AF:
0.00
AC:
0
AN:
15270
Ashkenazi Jewish (ASJ)
AF:
0.000576
AC:
2
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67944
Other (OTH)
AF:
0.00
AC:
0
AN:
2084
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
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
Alfa
AF:
0.0000333
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.00000824
AC:
1

ClinVar

ClinVar submissions
Significance:Pathogenic/Likely pathogenic
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
5
-
-
Pontocerebellar hypoplasia type 2D (5)
2
-
-
not provided (2)
1
-
-
Pontoneocerebellar hypoplasia (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.56
BayesDel_addAF
Pathogenic
0.28
D
BayesDel_noAF
Pathogenic
0.34
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.65
D
Eigen
Uncertain
0.54
Eigen_PC
Uncertain
0.51
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.95
D
M_CAP
Uncertain
0.21
D
MetaRNN
Pathogenic
0.97
D
MetaSVM
Uncertain
0.60
D
MutationAssessor
Pathogenic
3.1
M
PhyloP100
2.9
PrimateAI
Uncertain
0.60
T
PROVEAN
Uncertain
-3.0
D
REVEL
Pathogenic
0.86
Sift
Uncertain
0.0020
D
Sift4G
Benign
0.062
T
Polyphen
0.99
D
Vest4
0.90
MutPred
0.83
Loss of stability (P = 0.1598)
MVP
0.96
MPC
0.36
ClinPred
0.94
D
GERP RS
4.7
Varity_R
0.80
gMVP
0.86
Mutation Taster
=19/81
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.24
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.24
Position offset: 13

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs267607035; hg19: chr4-25153671; API