16-10770288-T-C

Variant summary

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

The NM_001079512.4(TVP23A):ā€‹c.626A>Gā€‹(p.Glu209Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000715 in 1,398,622 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 7.1e-7 ( 0 hom. )

Consequence

TVP23A
NM_001079512.4 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.31
Variant links:
Genes affected
TVP23A (HGNC:20398): (trans-golgi network vesicle protein 23 homolog A) This gene encodes a membrane protein associated with the Golgi apparatus, which plays a crucial role in intracellular vesicular transport. The encoded protein is likely associated with the late (trans) Golgi compartments, which are involved in the delivery of secretory and membrane proteins to the endosome, lysosome or the plasma membrane. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

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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=0.099303335).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TVP23ANM_001079512.4 linkuse as main transcriptc.626A>G p.Glu209Gly missense_variant 7/8 ENST00000299866.13 NP_001072980.1 A6NH52-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TVP23AENST00000299866.13 linkuse as main transcriptc.626A>G p.Glu209Gly missense_variant 7/82 NM_001079512.4 ENSP00000299866.8 A6NH52-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000650
AC:
1
AN:
153868
Hom.:
0
AF XY:
0.0000123
AC XY:
1
AN XY:
81546
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000442
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
7.15e-7
AC:
1
AN:
1398622
Hom.:
0
Cov.:
31
AF XY:
0.00000145
AC XY:
1
AN XY:
689916
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:
0.0000126
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 13, 2023The c.626A>G (p.E209G) alteration is located in exon 7 (coding exon 7) of the TVP23A gene. This alteration results from a A to G substitution at nucleotide position 626, causing the glutamic acid (E) at amino acid position 209 to be replaced by a glycine (G). 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
0.074
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.47
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.020
T;.;T;.
Eigen
Benign
-0.33
Eigen_PC
Benign
-0.15
FATHMM_MKL
Benign
0.63
D
LIST_S2
Benign
0.64
T;T;.;T
M_CAP
Benign
0.0075
T
MetaRNN
Benign
0.099
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.81
L;.;L;.
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-1.0
.;.;N;.
REVEL
Benign
0.024
Sift
Uncertain
0.020
.;.;D;.
Sift4G
Uncertain
0.045
D;D;D;T
Polyphen
0.039
B;.;B;.
Vest4
0.19
MutPred
0.26
Loss of sheet (P = 0.007);.;Loss of sheet (P = 0.007);.;
MVP
0.19
MPC
0.041
ClinPred
0.38
T
GERP RS
5.0
Varity_R
0.16
gMVP
0.49

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.17
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: rs1255344362; hg19: chr16-10864145; API