2-27150178-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_175769.3(TCF23):​c.278G>A​(p.Arg93His) variant causes a missense change. The variant allele was found at a frequency of 0.0000403 in 1,611,812 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000042 ( 0 hom. )

Consequence

TCF23
NM_175769.3 missense

Scores

10
6
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.32
Variant links:
Genes affected
TCF23 (HGNC:18602): (transcription factor 23) The gene encodes a member of the basic helix-loop-helix transcription factor family. Studies of the orthologous gene in mouse have shown the encoded protein does not bind DNA but may negatively regulate other basic helix-loop-helix factors via the formation of a functionally inactive heterodimeric complex. [provided by RefSeq, May 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TCF23NM_175769.3 linkuse as main transcriptc.278G>A p.Arg93His missense_variant 2/3 ENST00000296096.6
TCF23XM_005264159.6 linkuse as main transcriptc.278G>A p.Arg93His missense_variant 2/4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TCF23ENST00000296096.6 linkuse as main transcriptc.278G>A p.Arg93His missense_variant 2/31 NM_175769.3 P1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152212
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000442
AC:
11
AN:
248754
Hom.:
0
AF XY:
0.0000371
AC XY:
5
AN XY:
134816
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000110
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000713
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000418
AC:
61
AN:
1459482
Hom.:
0
Cov.:
31
AF XY:
0.0000496
AC XY:
36
AN XY:
726108
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.0000191
Gnomad4 NFE exome
AF:
0.0000477
Gnomad4 OTH exome
AF:
0.0000830
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152330
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74486
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000565
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

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 15, 2023The c.278G>A (p.R93H) alteration is located in exon 2 (coding exon 2) of the TCF23 gene. This alteration results from a G to A substitution at nucleotide position 278, causing the arginine (R) at amino acid position 93 to be replaced by a histidine (H). 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
Pathogenic
0.32
D
BayesDel_noAF
Pathogenic
0.44
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.81
D
Eigen
Pathogenic
0.70
Eigen_PC
Pathogenic
0.73
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.98
D
M_CAP
Uncertain
0.094
D
MetaRNN
Uncertain
0.58
D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Benign
1.2
L
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.72
T
PROVEAN
Uncertain
-3.7
D
REVEL
Pathogenic
0.88
Sift
Uncertain
0.0050
D
Sift4G
Uncertain
0.0040
D
Polyphen
1.0
D
Vest4
0.39
MVP
0.85
MPC
1.3
ClinPred
0.86
D
GERP RS
5.7
Varity_R
0.40
gMVP
0.80

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.29
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.29
Position offset: 23

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: rs201667688; hg19: chr2-27373046; API