2-27329278-A-T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_001035521.3(GTF3C2):​c.1882T>A​(p.Phe628Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000496 in 1,614,186 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: 0.0000027 ( 0 hom. )

Consequence

GTF3C2
NM_001035521.3 missense

Scores

3
8
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.64
Variant links:
Genes affected
GTF3C2 (HGNC:4665): (general transcription factor IIIC subunit 2) Contributes to DNA binding activity. Involved in transcription by RNA polymerase III. Located in nucleoplasm. Part of transcription factor TFIIIC complex. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GTF3C2NM_001035521.3 linkc.1882T>A p.Phe628Ile missense_variant Exon 14 of 19 ENST00000264720.8 NP_001030598.1 Q8WUA4-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GTF3C2ENST00000264720.8 linkc.1882T>A p.Phe628Ile missense_variant Exon 14 of 19 1 NM_001035521.3 ENSP00000264720.3 Q8WUA4-1
GTF3C2ENST00000359541.6 linkc.1882T>A p.Phe628Ile missense_variant Exon 14 of 19 1 ENSP00000352536.2 Q8WUA4-1
GTF3C2ENST00000454704.5 linkc.406T>A p.Phe136Ile missense_variant Exon 5 of 10 1 ENSP00000393429.1 H0Y4Q6
GTF3C2ENST00000415683.2 linkn.85T>A non_coding_transcript_exon_variant Exon 2 of 6 5 ENSP00000414422.2 H7C3X9

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152178
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
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
GnomAD2 exomes
AF:
0.00000795
AC:
2
AN:
251458
AF XY:
0.00000736
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461890
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
727246
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.0000894
AC:
4
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1112010
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152296
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74478
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41570
American (AMR)
AF:
0.000261
AC:
4
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68008
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.438
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000312
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.0000165
AC:
2

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Aug 17, 2021
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1882T>A (p.F628I) alteration is located in exon 15 (coding exon 13) of the GTF3C2 gene. This alteration results from a T to A substitution at nucleotide position 1882, causing the phenylalanine (F) at amino acid position 628 to be replaced by an isoleucine (I). 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
Pathogenic
0.69
BayesDel_addAF
Uncertain
0.040
T
BayesDel_noAF
Benign
-0.10
CADD
Pathogenic
26
DANN
Uncertain
0.99
DEOGEN2
Benign
0.30
T;T
Eigen
Uncertain
0.38
Eigen_PC
Uncertain
0.46
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.82
.;T
M_CAP
Benign
0.024
T
MetaRNN
Uncertain
0.54
D;D
MetaSVM
Benign
-0.72
T
MutationAssessor
Benign
-0.12
N;N
PhyloP100
4.6
PrimateAI
Uncertain
0.79
T
PROVEAN
Uncertain
-3.7
D;D
REVEL
Uncertain
0.31
Sift
Benign
0.050
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;D
Vest4
0.69
MVP
0.23
MPC
2.3
ClinPred
0.87
D
GERP RS
5.9
PromoterAI
-0.14
Neutral
Varity_R
0.34
gMVP
0.71
Mutation Taster
=93/7
polymorphism

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

Other links and lift over

dbSNP: rs201499584; hg19: chr2-27552145; API