chr11-18475600-T-G

Position:

• chr11-18475600-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_144972.5(LDHAL6A):​c.553T>G​(p.Cys185Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. 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 (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: LDHAL6A NM_144972.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.75

Genes affected

LDHAL6A (HGNC:28335): (lactate dehydrogenase A like 6A) Predicted to enable L-lactate dehydrogenase activity. Predicted to be involved in carbohydrate metabolic process and carboxylic acid metabolic process. Located in extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]

TSG101 (HGNC:15971): (tumor susceptibility 101) The protein encoded by this gene belongs to a group of apparently inactive homologs of ubiquitin-conjugating enzymes. The gene product contains a coiled-coil domain that interacts with stathmin, a cytosolic phosphoprotein implicated in tumorigenesis. The protein may play a role in cell growth and differentiation and act as a negative growth regulator. In vitro steady-state expression of this tumor susceptibility gene appears to be important for maintenance of genomic stability and cell cycle regulation. Mutations and alternative splicing in this gene occur in high frequency in breast cancer and suggest that defects occur during breast cancer tumorigenesis and/or progression. [provided by RefSeq, Jul 2008]

ACMG classification

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, 0.917

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LDHAL6A	NM_144972.5	c.553T>G	p.Cys185Gly	missense_variant	4/7	ENST00000280706.3	NP_659409.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LDHAL6A	ENST00000280706.3	c.553T>G	p.Cys185Gly	missense_variant	4/7	2	NM_144972.5	ENSP00000280706	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 30, 2022

The c.553T>G (p.C185G) alteration is located in exon 4 (coding exon 4) of the LDHAL6A gene. This alteration results from a T to G substitution at nucleotide position 553, causing the cysteine (C) at amino acid position 185 to be replaced by a glycine (G). 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	0.70
BayesDel_addAF	Uncertain	0.045	T
BayesDel_noAF	Benign	-0.17
CADD	Uncertain	23
DANN	Uncertain	0.98
DEOGEN2	Uncertain	0.56	.;D;D
Eigen	Uncertain	0.58
Eigen_PC	Uncertain	0.42
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Uncertain	0.96	D;.;D
M_CAP	Uncertain	0.16	D
MetaRNN	Pathogenic	0.92	D;D;D
MetaSVM	Uncertain	0.041	D
MutationAssessor	Pathogenic	3.4	.;M;M
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Benign	0.39	T
PROVEAN	Pathogenic	-8.9	.;D;D
REVEL	Uncertain	0.52
Sift	Pathogenic	0.0	.;D;D
Sift4G	Uncertain	0.0020	D;D;D
Polyphen		1.0	.;D;D
Vest4		0.63
MutPred		0.81		Gain of disorder (P = 0.0013);Gain of disorder (P = 0.0013);Gain of disorder (P = 0.0013);
MVP		0.82
MPC		0.53
ClinPred		1.0	D
GERP RS		3.1
Varity_R		0.90
gMVP		0.40

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr11-18497147;