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GeneBe

10-122082826-C-T

Variant summary

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

The NM_206862.4(TACC2):​c.326C>T​(p.Ser109Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,613,596 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S109T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

TACC2
NM_206862.4 missense

Scores

3
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.12
Variant links:
Genes affected
TACC2 (HGNC:11523): (transforming acidic coiled-coil containing protein 2) Transforming acidic coiled-coil proteins are a conserved family of centrosome- and microtubule-interacting proteins that are implicated in cancer. This gene encodes a protein that concentrates at centrosomes throughout the cell cycle. This gene lies within a chromosomal region associated with tumorigenesis. Expression of this gene is induced by erythropoietin and is thought to affect the progression of breast tumors. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

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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=0.103198856).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TACC2NM_206862.4 linkuse as main transcriptc.326C>T p.Ser109Phe missense_variant 4/23 ENST00000369005.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TACC2ENST00000369005.6 linkuse as main transcriptc.326C>T p.Ser109Phe missense_variant 4/231 NM_206862.4 O95359-4

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152096
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461500
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
727080
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152096
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74276
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

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 GeneticsJun 30, 2022The c.326C>T (p.S109F) alteration is located in exon 4 (coding exon 3) of the TACC2 gene. This alteration results from a C to T substitution at nucleotide position 326, causing the serine (S) at amino acid position 109 to be replaced by a phenylalanine (F). 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
0.24
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.62
CADD
Benign
15
DANN
Uncertain
0.99
DEOGEN2
Benign
0.020
T;T;T;T;T
Eigen
Benign
-0.75
Eigen_PC
Benign
-0.83
FATHMM_MKL
Benign
0.014
N
M_CAP
Benign
0.019
T
MetaRNN
Benign
0.10
T;T;T;T;T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
0.34
N;.;.;N;.
MutationTaster
Benign
1.0
N;N;N;N;N;N;N
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-0.80
N;N;N;N;N
REVEL
Benign
0.036
Sift
Uncertain
0.0010
D;D;D;D;D
Sift4G
Uncertain
0.0050
D;D;D;D;D
Polyphen
0.57
P;P;P;P;P
Vest4
0.27
MutPred
0.25
Gain of catalytic residue at S109 (P = 0.0032);Gain of catalytic residue at S109 (P = 0.0032);Gain of catalytic residue at S109 (P = 0.0032);Gain of catalytic residue at S109 (P = 0.0032);Gain of catalytic residue at S109 (P = 0.0032);
MVP
0.40
MPC
0.30
ClinPred
0.17
T
GERP RS
-0.29
Varity_R
0.12
gMVP
0.12

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: rs1591803099; hg19: chr10-123842341; API