Variant 5-157731606-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_017872.5(THG1L):c.166C>T(p.Arg56Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000208 in 1,444,542 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

THG1L
NM_017872.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.23

Variant links:

Genes affected

THG1L (HGNC:26053): (tRNA-histidine guanylyltransferase 1 like) The protein encoded by this gene is a mitochondrial protein that is induced by high levels of glucose and is associated with diabetic nephropathy. The encoded protein appears to increase mitochondrial biogenesis, which could lead to renal fibrosis. Another function of this protein is that of a guanyltransferase, adding GMP to the 5' end of tRNA(His). Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2015]

THG1L links:

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.99

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
THG1L	NM_017872.5 linkuse as main transcript	c.166C>T	p.Arg56Trp	missense_variant	1/6	ENST00000231198.12	NP_060342.2
THG1L	NM_001317824.2 linkuse as main transcript	c.-136C>T		5_prime_UTR_variant	1/6		NP_001304753.1
THG1L	NM_001317825.2 linkuse as main transcript	c.-206C>T		5_prime_UTR_variant	1/6		NP_001304754.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
THG1L	ENST00000231198.12 linkuse as main transcript	c.166C>T	p.Arg56Trp	missense_variant	1/6	1	NM_017872.5	ENSP00000231198	P1
THG1L	ENST00000521655.1 linkuse as main transcript	c.166C>T	p.Arg56Trp	missense_variant, NMD_transcript_variant	1/6	2		ENSP00000428387

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000419

AC:

AN:

238536

Hom.:

AF XY:

0.00000774

AC XY:

AN XY:

129178

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000588

Gnomad SAS 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:

0.00000208

AC:

AN:

1444542

Hom.:

Cov.:

AF XY:

0.00000418

AC XY:

AN XY:

717532

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000258

Gnomad4 SAS exome

AF:

0.0000238

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 03, 2023

The c.166C>T (p.R56W) alteration is located in exon 1 (coding exon 1) of the THG1L gene. This alteration results from a C to T substitution at nucleotide position 166, causing the arginine (R) at amino acid position 56 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

0.84

BayesDel_addAF

Pathogenic

0.24

BayesDel_noAF

Pathogenic

0.28

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.53

Eigen

Pathogenic

0.79

Eigen_PC

Pathogenic

0.69

FATHMM_MKL

Benign

0.63

LIST_S2

Pathogenic

0.98

M_CAP

Pathogenic

0.30

MetaRNN

Pathogenic

0.99

MetaSVM

Uncertain

0.39

MutationAssessor

Pathogenic

3.6

MutationTaster

Benign

1.0

PrimateAI

Pathogenic

0.84

PROVEAN

Pathogenic

-7.9

REVEL

Pathogenic

0.72

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.97

MutPred

0.96

Loss of MoRF binding (P = 0.0553);

MVP

0.81

MPC

0.60

ClinPred

1.0

GERP RS

4.9

Varity_R

0.98

gMVP

0.88

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over