Genetic Variant LDHAL6B:p.Gly109Ser (chr15-59207265-G-A) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_033195.3(LDHAL6B):c.325G>A(p.Gly109Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000294 in 1,461,876 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

LDHAL6B
NM_033195.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.83

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:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.932

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LDHAL6B	NM_033195.3 link	c.325G>A	p.Gly109Ser	missense_variant	Exon 1 of 1	ENST00000307144.6	NP_149972.1	Q9BYZ2A0A140VJM9
MYO1E	NM_004998.4 link	c.1530+1416C>T		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.325G>A	p.Gly109Ser	missense_variant	Exon 1 of 1	6	NM_033195.3	ENSP00000302393.4		Q9BYZ2
MYO1E	ENST00000288235.9 link	c.1530+1416C>T		intron_variant	Intron 14 of 27	1	NM_004998.4	ENSP00000288235.4		Q12965

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251496

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135922

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000294

AC:

AN:

1461876

Hom.:

Cov.:

AF XY:

0.0000248

AC XY:

AN XY:

727240

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:

0.0000387

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 19, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.325G>A (p.G109S) alteration is located in exon 1 (coding exon 1) of the LDHAL6B gene. This alteration results from a G to A substitution at nucleotide position 325, causing the glycine (G) at amino acid position 109 to be replaced by a serine (S). 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

0.37

BayesDel_addAF

Pathogenic

0.38

BayesDel_noAF

Pathogenic

0.31

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.69

Eigen

Uncertain

0.30

Eigen_PC

Benign

0.026

FATHMM_MKL

Uncertain

0.87

LIST_S2

Pathogenic

0.99

M_CAP

Benign

0.023

MetaRNN

Pathogenic

0.93

MetaSVM

Pathogenic

0.93

MutationAssessor

Pathogenic

3.8

PrimateAI

Benign

0.29

PROVEAN

Pathogenic

-5.5

REVEL

Pathogenic

0.76

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.010

Polyphen

1.0

Vest4

0.45

MutPred

0.87

Loss of ubiquitination at K108 (P = 0.0613);

MVP

0.93

MPC

0.15

ClinPred

1.0

GERP RS

1.5

Varity_R

0.77

gMVP

0.20

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