Genetic Variant NM_001286819.2:c.312C>A (chr8-38392806-C-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001286819.2(LETM2):c.312C>A(p.Ser104Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,842 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

LETM2
NM_001286819.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.430

Publications

0 publications found

Variant links:

Genes affected

LETM2 (HGNC:14648): (leucine zipper and EF-hand containing transmembrane protein 2) Predicted to enable ribosome binding activity. Predicted to be involved in cellular metal ion homeostasis. Predicted to be located in mitochondrial inner membrane. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

LETM2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.1109615).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001286819.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
LETM2	NM_001286819.2	MANE Select	c.312C>A	p.Ser104Arg	missense	Exon 3 of 11	NP_001273748.1	Q2VYF4-1
LETM2	NM_001199659.3		c.171C>A	p.Ser57Arg	missense	Exon 3 of 11	NP_001186588.1	Q2VYF4-2
LETM2	NM_001330515.2		c.312C>A	p.Ser104Arg	missense	Exon 3 of 10	NP_001317444.1	E9PMA4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
LETM2	ENST00000379957.9	TSL:5 MANE Select	c.312C>A	p.Ser104Arg	missense	Exon 3 of 11	ENSP00000369291.4	Q2VYF4-1
LETM2	ENST00000523983.6	TSL:1	c.171C>A	p.Ser57Arg	missense	Exon 3 of 11	ENSP00000428765.2	Q2VYF4-2
LETM2	ENST00000519476.6	TSL:1	c.312C>A	p.Ser104Arg	missense	Exon 3 of 3	ENSP00000429269.2	A8K1M9

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461842

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727210

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53382

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112006

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.47

CADD

Benign

(source)

DANN

Benign

0.97

DEOGEN2

Benign

0.022

Eigen

Benign

-0.39

Eigen_PC

Benign

-0.47

FATHMM_MKL

Benign

0.026

LIST_S2

Benign

0.80

M_CAP

Benign

0.0085

MetaRNN

Benign

0.11

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.9

PhyloP100

0.43

PrimateAI

Benign

0.24

PROVEAN

Uncertain

-3.0

REVEL

Benign

0.037

Sift

Uncertain

0.019

Sift4G

Uncertain

0.012

Polyphen

0.98

Vest4

0.064

MutPred

0.20

Loss of glycosylation at S104 (P = 0.0259)

MVP

0.048

MPC

0.063

ClinPred

0.45

GERP RS

1.8

Varity_R

0.069

gMVP

0.30

Mutation Taster

=85/15

polymorphism

(source)

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over