X-155511725-T-A

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PVS1PM2

The NM_018196.4(TMLHE):​c.706A>T​(p.Lys236Ter) variant causes a stop gained change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 22)
Exomes 𝑓: 9.2e-7 ( 0 hom. 1 hem. )
Failed GnomAD Quality Control

Consequence

TMLHE
NM_018196.4 stop_gained

Scores

2
2
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.20
Variant links:
Genes affected
TMLHE (HGNC:18308): (trimethyllysine hydroxylase, epsilon) This gene encodes the protein trimethyllysine dioxygenase which is the first enzyme in the carnitine biosynthesis pathway. Carnitine play an essential role in the transport of activated fatty acids across the inner mitochondrial membrane. The encoded protein converts trimethyllysine into hydroxytrimethyllysine. A pseudogene of this gene is found on chromosome X. Alternate splicing results in multiple transcript variants.[provided by RefSeq, May 2010]
TMLHE-AS1 (HGNC:44261): (TMLHE antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 10 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TMLHENM_018196.4 linkuse as main transcriptc.706A>T p.Lys236Ter stop_gained 5/8 ENST00000334398.8 NP_060666.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TMLHEENST00000334398.8 linkuse as main transcriptc.706A>T p.Lys236Ter stop_gained 5/81 NM_018196.4 ENSP00000335261 P1Q9NVH6-1
TMLHEENST00000369439.4 linkuse as main transcriptc.706A>T p.Lys236Ter stop_gained 5/71 ENSP00000358447 Q9NVH6-2
TMLHE-AS1ENST00000452506.1 linkuse as main transcriptn.67+22336T>A intron_variant, non_coding_transcript_variant 5
TMLHEENST00000675642.1 linkuse as main transcriptc.739A>T p.Lys247Ter stop_gained 6/9 ENSP00000502604 Q9NVH6-8

Frequencies

GnomAD3 genomes
Cov.:
22
GnomAD3 exomes
AF:
0.00000552
AC:
1
AN:
181212
Hom.:
0
AF XY:
0.0000152
AC XY:
1
AN XY:
65880
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000535
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
9.18e-7
AC:
1
AN:
1089875
Hom.:
0
Cov.:
29
AF XY:
0.00000280
AC XY:
1
AN XY:
356779
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:
0.0000189
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
22
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 provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingRevvity Omics, RevvityDec 07, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.61
D
BayesDel_noAF
Pathogenic
0.56
CADD
Pathogenic
36
DANN
Uncertain
1.0
FATHMM_MKL
Uncertain
0.83
D
MutationTaster
Benign
1.0
A;A
Vest4
0.38
GERP RS
3.3

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: rs782430005; hg19: chrX-154741386; API