Genetic Variant LENG1:p.Arg239Arg (chr19-54155801-G-T) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_024316.3(LENG1):c.715C>A(p.Arg239Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,611,776 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

LENG1
NM_024316.3 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.259

Variant links:

Genes affected

LENG1 (HGNC:15502): (leukocyte receptor cluster member 1)

LENG1 links:

CNOT3 (HGNC:7879): (CCR4-NOT transcription complex subunit 3) Involved in regulation of stem cell population maintenance. Part of CCR4-NOT complex. [provided by Alliance of Genome Resources, Apr 2022]

CNOT3 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.8).

BP7

Synonymous conserved (PhyloP=0.259 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LENG1	NM_024316.3 link	c.715C>A	p.Arg239Arg	synonymous_variant	Exon 4 of 4	ENST00000222224.4	NP_077292.2	Q96BZ8
CNOT3	NM_014516.4 link	c.*394G>T		downstream_gene_variant		ENST00000221232.11	NP_055331.1	O75175A0A024R4R3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LENG1	ENST00000222224.4 link	c.715C>A	p.Arg239Arg	synonymous_variant	Exon 4 of 4	1	NM_024316.3	ENSP00000222224.3		Q96BZ8
CNOT3	ENST00000221232.11 link	c.*394G>T		downstream_gene_variant		1	NM_014516.4	ENSP00000221232.5		O75175

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152104

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1459672

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

726016

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33472

American (AMR)

AF:

0.00

AC:

AN:

44590

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25942

East Asian (EAS)

AF:

0.00

AC:

AN:

39662

South Asian (SAS)

AF:

0.00

AC:

AN:

85906

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5726

European-Non Finnish (NFE)

AF:

0.00000540

AC:

AN:

1111696

Other (OTH)

AF:

0.00

AC:

AN:

60260

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.433

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152104

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74288

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41416

American (AMR)

AF:

0.00

AC:

AN:

15268

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68002

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.80

CADD

Benign

5.5

(source)

DANN

Benign

0.79

PhyloP100

0.26

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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19-54155801-G-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over