9-89325602-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM2PP3_StrongPP5_Moderate

The NM_001354702.2(SECISBP2):​c.-490C>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,613,954 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 Pathogenic (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

SECISBP2
NM_001354702.2 5_prime_UTR_premature_start_codon_gain

Scores

2
1
4

Clinical Significance

Pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 1.16
Variant links:
Genes affected
SECISBP2 (HGNC:30972): (SECIS binding protein 2) The protein encoded by this gene is one of the essential components of the machinery involved in co-translational insertion of selenocysteine (Sec) into selenoproteins. Sec is encoded by the UGA codon, which normally signals translation termination. The recoding of UGA as Sec codon requires a Sec insertion sequence (SECIS) element; present in the 3' untranslated regions of eukaryotic selenoprotein mRNAs. This protein specifically binds to the SECIS element, which is stimulated by a Sec-specific translation elongation factor. Mutations in this gene have been associated with reduction in enzymatic activity of type II iodothyronine deiodinase (a selenoprotein) and abnormal thyroid hormone metabolism. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Aug 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
BayesDel_addAF computational evidence supports a deleterious effect, 0.468
PP5
Variant 9-89325602-C-T is Pathogenic according to our data. Variant chr9-89325602-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 1323572.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SECISBP2NM_024077.5 linkuse as main transcriptc.358C>T p.Arg120* stop_gained 3/17 ENST00000375807.8 NP_076982.3 Q96T21-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SECISBP2ENST00000375807.8 linkuse as main transcriptc.358C>T p.Arg120* stop_gained 3/171 NM_024077.5 ENSP00000364965.3 Q96T21-1
SECISBP2ENST00000339901.8 linkuse as main transcriptc.139C>T p.Arg47* stop_gained 3/171 ENSP00000364959.3 Q96T21-2
SECISBP2ENST00000470305.1 linkuse as main transcriptn.3403C>T non_coding_transcript_exon_variant 1/31
SECISBP2ENST00000534113.6 linkuse as main transcriptc.154C>T p.Arg52* stop_gained 3/172 ENSP00000436650.2 Q96T21-3

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152116
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000725
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251414
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135874
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000958
AC:
14
AN:
1461838
Hom.:
0
Cov.:
31
AF XY:
0.00000688
AC XY:
5
AN XY:
727218
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000630
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152116
Hom.:
0
Cov.:
33
AF XY:
0.0000538
AC XY:
4
AN XY:
74318
show subpopulations
Gnomad4 AFR
AF:
0.0000725
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000227
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Thyroid hormone metabolism, abnormal 1 Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingRevvity Omics, RevvityNov 07, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.47
D
BayesDel_noAF
Pathogenic
0.25
CADD
Pathogenic
32
DANN
Uncertain
1.0
Eigen
Benign
0.11
Eigen_PC
Benign
-0.22
FATHMM_MKL
Benign
0.061
N
Vest4
0.83
GERP RS
2.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs777447200; hg19: chr9-91940517; API