Genetic Variant NM_007335.4:c.2945T>G (chr3-38107664-T-G) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_007335.4(DLEC1):c.2945T>G(p.Leu982Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

DLEC1
NM_007335.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.55

Variant links:

Genes affected

DLEC1 (HGNC:2899): (DLEC1 cilia and flagella associated protein) The cytogenetic location of this gene is 3p21.3, and it is located in a region that is commonly deleted in a variety of malignancies. Down-regulation of this gene has been observed in several human cancers including lung, esophageal, renal tumors, and head and neck squamous cell carcinoma. In some cases, reduced expression of this gene in tumor cells is a result of aberrant promoter methylation. Several alternatively spliced transcripts have been observed that contain disrupted coding regions and likely encode nonfunctional proteins.[provided by RefSeq, Mar 2016]

DLEC1 links:

ACAA1 (HGNC:82): (acetyl-CoA acyltransferase 1) This gene encodes an enzyme operative in the beta-oxidation system of the peroxisomes. Deficiency of this enzyme leads to pseudo-Zellweger syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2008]

ACAA1 links:

LOC105377033 (HGNC:):

LOC105377033 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.35151377).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DLEC1	NM_007335.4 link	c.2945T>G	p.Leu982Arg	missense_variant	Exon 20 of 37	ENST00000308059.11	NP_031361.2	Q9Y238-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
DLEC1	ENST00000308059.11 link	c.2945T>G	p.Leu982Arg	missense_variant	Exon 20 of 37	1	NM_007335.4	ENSP00000308597.6	Q9Y238-1
DLEC1	ENST00000346219.7 link	c.2945T>G	p.Leu982Arg	missense_variant	Exon 20 of 36	1		ENSP00000315914.5	Q9Y238-3
ACAA1	ENST00000451419.1 link	n.300-3871A>C		intron_variant	Intron 2 of 2	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000401

AC:

AN:

249450

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135360

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000883

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

6.84e-7

AC:

AN:

1461854

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727226

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

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.:

ExAC

AF:

0.00000827

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 13, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2945T>G (p.L982R) alteration is located in exon 20 (coding exon 20) of the DLEC1 gene. This alteration results from a T to G substitution at nucleotide position 2945, causing the leucine (L) at amino acid position 982 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

AlphaMissense

Benign

0.098

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.53

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.20

.;T

Eigen

Uncertain

0.19

Eigen_PC

Benign

0.19

FATHMM_MKL

Benign

0.63

LIST_S2

Benign

0.66

T;T

M_CAP

Benign

0.0063

MetaRNN

Benign

0.35

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.2

M;M

PrimateAI

Benign

0.32

PROVEAN

Uncertain

-2.9

D;D

REVEL

Benign

0.098

Sift

Benign

0.095

T;T

Sift4G

Uncertain

0.0080

D;D

Polyphen

0.92

P;P

Vest4

0.47

MutPred

0.70

Gain of MoRF binding (P = 0.0298);Gain of MoRF binding (P = 0.0298);

MVP

0.64

MPC

0.17

ClinPred

0.93

GERP RS

3.9

Varity_R

0.30

gMVP

0.55

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