chr14-102376729-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_014844.5(TECPR2):​c.8C>T​(p.Ser3Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,822 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 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. S3S) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

TECPR2
NM_014844.5 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.22
Variant links:
Genes affected
TECPR2 (HGNC:19957): (tectonin beta-propeller repeat containing 2) The protein encoded by this gene is a member of the tectonin beta-propeller repeat-containing (TECPR) family, and contains both TECPR and tryptophan-aspartic acid repeat (WD repeat) domains. This gene has been implicated in autophagy, as reduced expression levels of this gene have been associated with impaired autophagy. Recessive mutations in this gene have been associated with a hereditary form of spastic paraparesis (HSP). HSP is characterized by progressive spasticity and paralysis of the legs. There is also some evidence linking mutations in this gene with birdshot chorioretinopathy (BSCR), which results in inflammation of the choroid and retina. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Aug 2015]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.08592352).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TECPR2NM_014844.5 linkuse as main transcriptc.8C>T p.Ser3Leu missense_variant 2/20 ENST00000359520.12
LOC124903389XR_007064350.1 linkuse as main transcriptn.73-6244G>A intron_variant, non_coding_transcript_variant
TECPR2NM_001172631.3 linkuse as main transcriptc.8C>T p.Ser3Leu missense_variant 2/17

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TECPR2ENST00000359520.12 linkuse as main transcriptc.8C>T p.Ser3Leu missense_variant 2/201 NM_014844.5 P1O15040-1
TECPR2ENST00000558678.1 linkuse as main transcriptc.8C>T p.Ser3Leu missense_variant 2/171 O15040-2
TECPR2ENST00000561228.1 linkuse as main transcriptn.136C>T non_coding_transcript_exon_variant 2/62

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461822
Hom.:
0
Cov.:
31
AF XY:
0.00000688
AC XY:
5
AN XY:
727212
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.00000378
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJun 18, 2021The c.8C>T (p.S3L) alteration is located in exon 2 (coding exon 1) of the TECPR2 gene. This alteration results from a C to T substitution at nucleotide position 8, causing the serine (S) at amino acid position 3 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.49
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.018
T;.
Eigen
Benign
0.095
Eigen_PC
Benign
0.092
FATHMM_MKL
Benign
0.48
N
LIST_S2
Benign
0.86
D;D
M_CAP
Benign
0.018
T
MetaRNN
Benign
0.086
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.4
L;L
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.45
T
PROVEAN
Benign
-2.2
N;D
REVEL
Benign
0.032
Sift
Uncertain
0.0050
D;D
Sift4G
Uncertain
0.014
D;D
Polyphen
1.0
D;.
Vest4
0.070
MutPred
0.35
Gain of catalytic residue at E6 (P = 0.003);Gain of catalytic residue at E6 (P = 0.003);
MVP
0.043
MPC
0.29
ClinPred
0.87
D
GERP RS
4.6
Varity_R
0.11
gMVP
0.48

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
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: rs760420809; hg19: chr14-102843066; API