Variant chrX-155511701-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 6P and 4B. PM1PP3_StrongBS2

The NM_018196.4(TMLHE):c.730G>A(p.Asp244Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000666 in 1,201,253 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 2 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D244H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000090 ( 0 hom., 0 hem., cov: 22)

Exomes 𝑓: 0.0000064 ( 0 hom. 2 hem. )

Consequence

TMLHE
NM_018196.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.78

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 links:

TMLHE-AS1 (HGNC:44261): (TMLHE antisense RNA 1)

TMLHE-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM1

In a binding_site (size 0) in uniprot entity TMLH_HUMAN

PP3

MetaRNN computational evidence supports a deleterious effect, 0.991

BS2

High AC in GnomAdExome4 at 7 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TMLHE	NM_018196.4 linkuse as main transcript	c.730G>A	p.Asp244Asn	missense_variant	5/8	ENST00000334398.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TMLHE	ENST00000334398.8 linkuse as main transcript	c.730G>A	p.Asp244Asn	missense_variant	5/8	1	NM_018196.4	P1	Q9NVH6-1
TMLHE	ENST00000369439.4 linkuse as main transcript	c.730G>A	p.Asp244Asn	missense_variant	5/7	1			Q9NVH6-2
TMLHE-AS1	ENST00000452506.1 linkuse as main transcript	n.67+22312C>T		intron_variant, non_coding_transcript_variant		5
TMLHE	ENST00000675642.1 linkuse as main transcript	c.763G>A	p.Asp255Asn	missense_variant	6/9				Q9NVH6-8

Frequencies

GnomAD3 genomes

AF:

0.00000898

AC:

AN:

111398

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33652

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:

0.0000189

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000642

AC:

AN:

1089855

Hom.:

Cov.:

AF XY:

0.00000560

AC XY:

AN XY:

357107

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000837

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000898

AC:

AN:

111398

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33652

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:

0.0000189

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

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 submitter

clinical testing

Ambry Genetics

Mar 25, 2024

The c.730G>A (p.D244N) alteration is located in exon 5 (coding exon 4) of the TMLHE gene. This alteration results from a G to A substitution at nucleotide position 730, causing the aspartic acid (D) at amino acid position 244 to be replaced by an asparagine (N). 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

0.98

BayesDel_addAF

Pathogenic

0.22

BayesDel_noAF

Uncertain

0.080

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.73

D;.

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.96

D;D

M_CAP

Pathogenic

0.56

MetaRNN

Pathogenic

0.99

D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Pathogenic

3.9

H;H

MutationTaster

Benign

1.0

D;D

PrimateAI

Pathogenic

0.88

PROVEAN

Pathogenic

-4.6

D;D

REVEL

Pathogenic

0.90

Sift

Pathogenic

0.0

D;D

Sift4G

Uncertain

0.019

D;D

Polyphen

0.99

D;D

Vest4

0.96

MutPred

0.97

Loss of phosphorylation at T243 (P = 0.1253);Loss of phosphorylation at T243 (P = 0.1253);

MVP

0.60

MPC

0.86

ClinPred

1.0

GERP RS

3.6

Varity_R

0.92

gMVP

0.95

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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