chr2-144208655-G-A

Variant summary

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

The NM_001376312.2(GTDC1):​c.127C>T​(p.Arg43Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000364 in 1,613,620 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00039 ( 0 hom. )

Consequence

GTDC1
NM_001376312.2 missense

Scores

8
9
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.07
Variant links:
Genes affected
GTDC1 (HGNC:20887): (glycosyltransferase like domain containing 1) Predicted to enable glycosyltransferase activity. [provided by Alliance of Genome Resources, Apr 2022]

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 Protein UniProt
GTDC1NM_001376312.2 linkuse as main transcriptc.127C>T p.Arg43Trp missense_variant 4/12 ENST00000682281.1 NP_001363241.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GTDC1ENST00000682281.1 linkuse as main transcriptc.127C>T p.Arg43Trp missense_variant 4/12 NM_001376312.2 ENSP00000507713.1 Q4AE62-1

Frequencies

GnomAD3 genomes
AF:
0.000164
AC:
25
AN:
152034
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000656
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000944
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000250
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.000203
AC:
51
AN:
251072
Hom.:
0
AF XY:
0.000192
AC XY:
26
AN XY:
135688
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.000203
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.000277
Gnomad NFE exome
AF:
0.000273
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000385
AC:
563
AN:
1461586
Hom.:
0
Cov.:
31
AF XY:
0.000385
AC XY:
280
AN XY:
727102
show subpopulations
Gnomad4 AFR exome
AF:
0.000179
Gnomad4 AMR exome
AF:
0.000179
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.000356
Gnomad4 NFE exome
AF:
0.000456
Gnomad4 OTH exome
AF:
0.000315
GnomAD4 genome
AF:
0.000164
AC:
25
AN:
152034
Hom.:
0
Cov.:
32
AF XY:
0.0000943
AC XY:
7
AN XY:
74256
show subpopulations
Gnomad4 AFR
AF:
0.000121
Gnomad4 AMR
AF:
0.0000656
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000944
Gnomad4 NFE
AF:
0.000250
Gnomad4 OTH
AF:
0.000479
Alfa
AF:
0.000227
Hom.:
0
Bravo
AF:
0.000208
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.000189
AC:
23
EpiCase
AF:
0.000382
EpiControl
AF:
0.000178

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 GeneticsJul 20, 2022The c.127C>T (p.R43W) alteration is located in exon 4 (coding exon 1) of the GTDC1 gene. This alteration results from a C to T substitution at nucleotide position 127, causing the arginine (R) at amino acid position 43 to be replaced by a tryptophan (W). 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
0.91
BayesDel_addAF
Uncertain
0.021
T
BayesDel_noAF
Uncertain
0.090
CADD
Pathogenic
26
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.41
T;T;.;.;T;T;T;T;T
Eigen
Uncertain
0.60
Eigen_PC
Uncertain
0.51
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Pathogenic
0.98
.;.;D;D;D;D;.;D;D
M_CAP
Uncertain
0.13
D
MetaRNN
Uncertain
0.73
D;D;D;D;D;D;D;D;D
MetaSVM
Uncertain
-0.054
T
MutationAssessor
Pathogenic
3.3
M;M;M;M;.;M;M;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D;D
PrimateAI
Pathogenic
0.81
D
PROVEAN
Pathogenic
-6.5
D;D;D;D;D;D;D;D;D
REVEL
Uncertain
0.47
Sift
Pathogenic
0.0
D;D;D;D;D;D;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;D;D;D;D;.;.
Polyphen
1.0
D;D;D;.;D;D;D;.;.
Vest4
0.93
MVP
0.52
MPC
0.29
ClinPred
0.79
D
GERP RS
4.2
Varity_R
0.88
gMVP
0.87

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: rs144090408; hg19: chr2-144966222; COSMIC: COSV53995299; COSMIC: COSV53995299; API