Genetic Variant LDHAL6B:p.Thr135Ile (chr15-59207344-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_033195.3(LDHAL6B):c.404C>T(p.Thr135Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000682 in 1,613,968 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

LDHAL6B
NM_033195.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.48

Variant links:

Genes affected

LDHAL6B (HGNC:21481): (lactate dehydrogenase A like 6B) Predicted to enable L-lactate dehydrogenase activity. Predicted to be involved in pyruvate metabolic process. Located in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

LDHAL6B links:

MYO1E (HGNC:7599): (myosin IE) This gene encodes a member of the nonmuscle class I myosins which are a subgroup of the unconventional myosin protein family. The unconventional myosin proteins function as actin-based molecular motors. Class I myosins are characterized by a head (motor) domain, a regulatory domain and a either a short or long tail domain. Among the class I myosins, this protein is distinguished by a long tail domain that is involved in crosslinking actin filaments. This protein localizes to the cytoplasm and may be involved in intracellular movement and membrane trafficking. Mutations in this gene are the cause of focal segmental glomerulosclerosis-6. This gene has been referred to as myosin IC in the literature but is distinct from the myosin IC gene located on chromosome 17. [provided by RefSeq, Jan 2012]

MYO1E links:

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 rank	MANE	Protein	UniProt
LDHAL6B	NM_033195.3 link	c.404C>T	p.Thr135Ile	missense_variant	Exon 1 of 1	ENST00000307144.6	NP_149972.1	Q9BYZ2A0A140VJM9
MYO1E	NM_004998.4 link	c.1530+1337G>A		intron_variant	Intron 14 of 27	ENST00000288235.9	NP_004989.2	Q12965Q4KMR3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LDHAL6B	ENST00000307144.6 link	c.404C>T	p.Thr135Ile	missense_variant	Exon 1 of 1	6	NM_033195.3	ENSP00000302393.4		Q9BYZ2
MYO1E	ENST00000288235.9 link	c.1530+1337G>A		intron_variant	Intron 14 of 27	1	NM_004998.4	ENSP00000288235.4		Q12965

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152218

Hom.:

Cov.:

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000684

AC:

AN:

1461750

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727182

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:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000809

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152218

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74366

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.00000378

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 07, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.404C>T (p.T135I) alteration is located in exon 1 (coding exon 1) of the LDHAL6B gene. This alteration results from a C to T substitution at nucleotide position 404, causing the threonine (T) at amino acid position 135 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

Uncertain

0.43

BayesDel_addAF

Uncertain

0.15

BayesDel_noAF

Uncertain

-0.020

CADD

Benign

DANN

Benign

0.93

DEOGEN2

Uncertain

0.45

Eigen

Benign

-0.32

Eigen_PC

Benign

-0.46

FATHMM_MKL

Benign

0.74

LIST_S2

Benign

0.69

M_CAP

Benign

0.0061

MetaRNN

Uncertain

0.71

MetaSVM

Uncertain

0.0067

MutationAssessor

Benign

2.0

PrimateAI

Benign

0.44

PROVEAN

Pathogenic

-4.6

REVEL

Uncertain

0.41

Sift

Pathogenic

0.0

Sift4G

Uncertain

0.059

Polyphen

0.59

Vest4

0.56

MutPred

0.66

Gain of catalytic residue at L140 (P = 0.0405);

MVP

0.83

MPC

0.050

ClinPred

1.0

GERP RS

1.5

Varity_R

0.68

gMVP

0.088

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.

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