Variant 16-25132453-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_016309.3(LCMT1):c.257G>A(p.Arg86Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,612 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

LCMT1
NM_016309.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.165

Variant links:

Genes affected

LCMT1 (HGNC:17557): (leucine carboxyl methyltransferase 1) LCMT1 catalyzes the methylation of the carboxyl group of the C-terminal leucine residue (leu309) of the catalytic subunit of protein phosphatase-2A (PPP2CA; MIM 176915) (De Baere et al., 1999 [PubMed 10600115]).[supplied by OMIM, Mar 2008]

LCMT1 links:

LCMT1 (HGNC:):

LCMT1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.117375195).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LCMT1	NM_016309.3 linkuse as main transcript	c.257G>A	p.Arg86Gln	missense_variant	3/11	ENST00000399069.8	NP_057393.2	Q9UIC8-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
LCMT1	ENST00000399069.8 linkuse as main transcript	c.257G>A	p.Arg86Gln	missense_variant	3/11	1	NM_016309.3	ENSP00000382021.3	Q9UIC8-1
LCMT1	ENST00000380962.9 linkuse as main transcript	n.*114G>A		non_coding_transcript_exon_variant	4/12	2		ENSP00000370349.5	H7BYF0
LCMT1	ENST00000380962.9 linkuse as main transcript	n.*114G>A		3_prime_UTR_variant	4/12	2		ENSP00000370349.5	H7BYF0

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000401

AC:

AN:

249220

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135206

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.0000993

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461612

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727088

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000827

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 30, 2024

The c.257G>A (p.R86Q) alteration is located in exon 3 (coding exon 3) of the LCMT1 gene. This alteration results from a G to A substitution at nucleotide position 257, causing the arginine (R) at amino acid position 86 to be replaced by a glutamine (Q). 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

Benign

0.066

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.64

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.085

T;.;.

Eigen

Benign

-0.55

Eigen_PC

Benign

-0.42

FATHMM_MKL

Benign

0.58

LIST_S2

Uncertain

0.87

D;D;D

M_CAP

Benign

0.0099

MetaRNN

Benign

0.12

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.83

L;L;.

PrimateAI

Benign

0.22

PROVEAN

Benign

-0.28

N;N;.

REVEL

Benign

0.035

Sift

Benign

0.28

T;T;.

Sift4G

Benign

0.30

T;T;T

Polyphen

0.0020

B;B;.

Vest4

0.28

MutPred

0.43

Loss of MoRF binding (P = 0.0182);Loss of MoRF binding (P = 0.0182);.;

MVP

0.18

MPC

0.28

ClinPred

0.38

GERP RS

-1.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.1

Varity_R

0.085

gMVP

0.25

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