Genetic Variant LARP4B:p.Leu699Val (chr10-813048-G-C) – 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_015155.3(LARP4B):c.2095C>G(p.Leu699Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000013 in 1,461,562 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

LARP4B
NM_015155.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.726

Publications

0 publications found

Variant links:

Genes affected

LARP4B (HGNC:28987): (La ribonucleoprotein 4B) This gene encodes a member of an evolutionarily conserved protein family implicated in RNA metabolism and translation. Members of this family are characterized by the presence of an La motif, which is often located adjacent to one or more RNA recognition motifs (RRM). Together, the two motifs constitute the functional region of the protein and enable its interaction with the RNA substrate. This protein family is divided into five sub-families: the genuine La proteins and four La-related protein (LARP) sub-families. The protein encoded by this gene belongs to LARP sub-family 4. It is a cytoplasmic protein that may play a stimulatory role in translation. [provided by RefSeq, Oct 2012]

LARP4B 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=0.098276675).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LARP4B	NM_015155.3 link	c.2095C>G	p.Leu699Val	missense_variant	Exon 18 of 18	ENST00000316157.8	NP_055970.1	Q92615

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LARP4B	ENST00000316157.8 link	c.2095C>G	p.Leu699Val	missense_variant	Exon 18 of 18	1	NM_015155.3	ENSP00000326128.3		Q92615

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.0000130

AC:

AN:

1461562

Hom.:

Cov.:

AF XY:

0.00000963

AC XY:

AN XY:

727068

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33460

American (AMR)

AF:

0.00

AC:

AN:

44708

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86228

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53368

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5618

European-Non Finnish (NFE)

AF:

0.0000171

AC:

AN:

1111996

Other (OTH)

AF:

0.00

AC:

AN:

60358

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 20, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.2095C>G (p.L699V) alteration is located in exon 17 (coding exon 17) of the LARP4B gene. This alteration results from a C to G substitution at nucleotide position 2095, causing the leucine (L) at amino acid position 699 to be replaced by a valine (V). 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

0.060

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.53

CADD

Benign

(source)

DANN

Benign

0.88

DEOGEN2

Benign

0.0078

T;T;T

Eigen

Benign

-0.071

Eigen_PC

Benign

0.054

FATHMM_MKL

Uncertain

0.81

LIST_S2

Benign

0.78

T;T;.

M_CAP

Benign

0.0062

MetaRNN

Benign

0.098

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.0

.;L;L

PhyloP100

0.73

PrimateAI

Benign

0.33

PROVEAN

Benign

-0.080

.;.;N

REVEL

Benign

0.037

Sift

Benign

0.50

.;.;T

Sift4G

Benign

0.64

T;T;T

Polyphen

0.0010

.;B;B

Vest4

0.019, 0.020

MutPred

0.15

.;Gain of loop (P = 0.0502);Gain of loop (P = 0.0502);

MVP

0.31

MPC

0.30

ClinPred

0.053

GERP RS

2.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.034

gMVP

0.072

Mutation Taster

=98/2

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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10-813048-G-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over