Genetic Variant NM_005566.4:c.519A>T (chr11-18402940-A-T) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_005566.4(LDHA):c.519A>T(p.Leu173Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. L173L) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

LDHA
NM_005566.4 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.0940

Publications

26 publications found

Variant links:

Genes affected

LDHA (HGNC:6535): (lactate dehydrogenase A) This gene encodes the A subunit of lactate dehydrogenase enzyme which catalyzes the reversible conversion of pyruvate to lactate with the concomitant oxidation of NADH to NAD in anaerobic glycolysis. The protein is found predominantly in skeletal muscle and belongs to the lactate dehydrogenase family. Mutations in this gene have been linked to exertional myoglobinuria. The human genome contains several non-transcribed pseudogenes of this gene. [provided by RefSeq, Sep 2023]

LDHA Gene-Disease associations (from GenCC):

glycogen storage disease due to lactate dehydrogenase M-subunit deficiency
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet

LDHA links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.73).

BP7

Synonymous conserved (PhyloP=-0.094 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005566.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
LDHA	NM_005566.4	MANE Select	c.519A>T	p.Leu173Leu	synonymous	Exon 5 of 8	NP_005557.1	P00338-1
LDHA	NM_001165414.2		c.606A>T	p.Leu202Leu	synonymous	Exon 5 of 8	NP_001158886.1	P00338-3
LDHA	NM_001135239.2		c.345A>T	p.Leu115Leu	synonymous	Exon 4 of 7	NP_001128711.1	P00338-4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
LDHA	ENST00000422447.8	TSL:1 MANE Select	c.519A>T	p.Leu173Leu	synonymous	Exon 5 of 8	ENSP00000395337.3	P00338-1
LDHA	ENST00000542179.1	TSL:1	c.519A>T	p.Leu173Leu	synonymous	Exon 4 of 7	ENSP00000445331.1	P00338-1
LDHA	ENST00000545215.5	TSL:1	n.*263A>T		non_coding_transcript_exon	Exon 4 of 7	ENSP00000442637.1	F5GWW2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0;AS_VQSR

AF:

0.00

AC:

AN:

1460112

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726510

African (AFR)

AF:

0.00

AC:

AN:

33460

American (AMR)

AF:

0.00

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26122

East Asian (EAS)

AF:

0.00

AC:

AN:

39684

South Asian (SAS)

AF:

0.00

AC:

AN:

86230

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1110408

Other (OTH)

AF:

0.00

AC:

AN:

60316

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.73

CADD

Benign

6.4

(source)

DANN

Benign

0.78

PhyloP100

-0.094

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over