Variant 11-33869544-G-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_005574.4(LMO2):c.50C>G(p.Pro17Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000628 in 1,273,784 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 11/18 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: 𝑓 0.00036 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000023 ( 1 hom. )

Consequence

LMO2
NM_005574.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.08

Variant links:

Genes affected

LMO2 (HGNC:6642): (LIM domain only 2) LMO2 encodes a cysteine-rich, two LIM-domain protein that is required for yolk sac erythropoiesis. The LMO2 protein has a central and crucial role in hematopoietic development and is highly conserved. The LMO2 transcription start site is located approximately 25 kb downstream from the 11p13 T-cell translocation cluster (11p13 ttc), where a number T-cell acute lymphoblastic leukemia-specific translocations occur. Alternative splicing results in multiple transcript variants encoding different isoforms.[provided by RefSeq, Nov 2008]

LMO2 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.22036514).

BS2

High AC in GnomAd4 at 54 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LMO2	NM_005574.4 linkuse as main transcript	c.50C>G	p.Pro17Arg	missense_variant	4/6	ENST00000257818.3	NP_005565.2	P25791-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LMO2	ENST00000257818.3 linkuse as main transcript	c.50C>G	p.Pro17Arg	missense_variant	4/6	1	NM_005574.4	ENSP00000257818.2		P25791-3

Frequencies

GnomAD3 genomes

AF:

0.000363

AC:

AN:

148750

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00127

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000133

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000231

AC:

AN:

1124926

Hom.:

Cov.:

AF XY:

0.0000200

AC XY:

AN XY:

548996

show subpopulations

Gnomad4 AFR exome

AF:

0.000939

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000726

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000709

GnomAD4 genome

AF:

0.000363

AC:

AN:

148858

Hom.:

Cov.:

AF XY:

0.000330

AC XY:

AN XY:

72658

show subpopulations

Gnomad4 AFR

AF:

0.00126

Gnomad4 AMR

AF:

0.000133

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.000291

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

Aug 05, 2024

The c.50C>G (p.P17R) alteration is located in exon 4 (coding exon 2) of the LMO2 gene. This alteration results from a C to G substitution at nucleotide position 50, causing the proline (P) at amino acid position 17 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

BayesDel_addAF

Benign

-0.48

BayesDel_noAF

Benign

-0.50

CADD

Uncertain

DANN

Benign

0.97

Eigen

Benign

-0.11

Eigen_PC

Benign

-0.15

FATHMM_MKL

Benign

0.16

LIST_S2

Benign

0.54

M_CAP

Pathogenic

0.95

MetaRNN

Benign

0.22

MetaSVM

Benign

-0.97

PrimateAI

Pathogenic

0.86

PROVEAN

Benign

-1.4

REVEL

Benign

0.071

Sift

Pathogenic

0.0

Sift4G

Uncertain

0.017

Polyphen

0.89

Vest4

0.092

MutPred

0.34

Loss of glycosylation at P17 (P = 0.0203);

MVP

0.13

MPC

0.80

ClinPred

0.51

GERP RS

2.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.9

gMVP

0.47

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