11-18701579-T-G

Variant summary

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

The NM_153347.3(TMEM86A):c.293T>G(p.Leu98Arg) variant causes a missense change. 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: TMEM86A NM_153347.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.87

Genes affected

TMEM86A (HGNC:26890): (transmembrane protein 86A) Predicted to enable alkenylglycerophosphocholine hydrolase activity and alkenylglycerophosphoethanolamine hydrolase activity. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

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, 0.923

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TMEM86A	NM_153347.3	c.293T>G	p.Leu98Arg	missense_variant	3/3	ENST00000280734.3
TMEM86A	XM_047426448.1	c.293T>G	p.Leu98Arg	missense_variant	3/4
TMEM86A	XM_047426449.1	c.293T>G	p.Leu98Arg	missense_variant	3/5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TMEM86A	ENST00000280734.3	c.293T>G	p.Leu98Arg	missense_variant	3/3	1	NM_153347.3	P1
TMEM86A	ENST00000527002.5	n.528T>G		non_coding_transcript_exon_variant	3/3	4
TMEM86A	ENST00000529240.1	n.413T>G		non_coding_transcript_exon_variant	3/3	4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

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 09, 2023

The c.293T>G (p.L98R) alteration is located in exon 3 (coding exon 3) of the TMEM86A gene. This alteration results from a T to G substitution at nucleotide position 293, causing the leucine (L) at amino acid position 98 to be replaced by an arginine (R). 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	0.84
BayesDel_addAF	Pathogenic	0.22	D
BayesDel_noAF	Uncertain	0.080
Cadd	Pathogenic	28
Dann	Uncertain	1.0
DEOGEN2	Benign	0.13	T
Eigen	Pathogenic	0.68
Eigen_PC	Uncertain	0.65
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.88	D
M_CAP	Benign	0.033	D
MetaRNN	Pathogenic	0.92	D
MetaSVM	Benign	-0.93	T
MutationAssessor	Pathogenic	3.0	M
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.77	T
PROVEAN	Benign	-1.9	N
REVEL	Uncertain	0.58
Sift	Benign	0.068	T
Sift4G	Benign	0.11	T
Polyphen		1.0	D
Vest4		0.90
MutPred		0.82		Gain of methylation at L98 (P = 0.0148);
MVP		0.41
MPC		1.5
ClinPred		0.97	D
GERP RS		4.9
Varity_R		0.50
gMVP		0.88

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr11-18723126;