7-6447831-C-A

Variant names:

Variant summary

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

The NM_139179.4(DAGLB):c.12G>T(p.Met4Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000254 in 1,611,944 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

DAGLB
NM_139179.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.28

Variant links:

Genes affected

DAGLB (HGNC:28923): (diacylglycerol lipase beta) Enables lipase activity. Involved in arachidonic acid metabolic process. Located in nucleoplasm and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

DAGLB links:

KDELR2 (HGNC:6305): (KDEL endoplasmic reticulum protein retention receptor 2) Retention of resident soluble proteins in the lumen of the endoplasmic reticulum (ER) is achieved in both yeast and animal cells by their continual retrieval from the cis-Golgi, or a pre-Golgi compartment. Sorting of these proteins is dependent on a C-terminal tetrapeptide signal, usually lys-asp-glu-leu (KDEL) in animal cells, and his-asp-glu-leu (HDEL) in S. cerevisiae. This process is mediated by a receptor that recognizes, and binds the tetrapeptide-containing protein, and returns it to the ER. In yeast, the sorting receptor encoded by a single gene, ERD2, is a seven-transmembrane protein. Unlike yeast, several human homologs of the ERD2 gene, constituting the KDEL receptor gene family, have been described. KDELR2 was the second member of the family to be identified, and it encodes a protein which is 83% identical to the KDELR1 gene product. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2008]

KDELR2 links:

Genome browser will be placed here

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=0.07140145).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DAGLB	NM_139179.4 link	c.12G>T	p.Met4Ile	missense_variant	Exon 1 of 15	ENST00000297056.11	NP_631918.3	Q8NCG7-1
DAGLB	NM_001142936.2 link	c.12G>T	p.Met4Ile	missense_variant	Exon 1 of 13		NP_001136408.1	Q8NCG7-4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DAGLB	ENST00000297056.11 link	c.12G>T	p.Met4Ile	missense_variant	Exon 1 of 15	1	NM_139179.4	ENSP00000297056.6		Q8NCG7-1

Frequencies

GnomAD3 genomes

AF:

0.000164

AC:

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000579

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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

GnomAD3 exomes

AF:

0.0000369

AC:

AN:

243728

Hom.:

AF XY:

0.0000378

AC XY:

AN XY:

132434

show subpopulations

Gnomad AFR exome

AF:

0.000259

Gnomad AMR exome

AF:

0.0000591

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:

0.0000273

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000110

AC:

AN:

1459650

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

725998

show subpopulations

Gnomad4 AFR exome

AF:

0.000239

Gnomad4 AMR exome

AF:

0.0000225

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:

0.00000450

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.000164

AC:

AN:

152294

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74476

show subpopulations

Gnomad4 AFR

AF:

0.000577

Gnomad4 AMR

AF:

0.0000654

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:

0.0000990

Hom.:

Bravo

AF:

0.000185

ESP6500AA

AF:

0.000455

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000577

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 20, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.12G>T (p.M4I) alteration is located in exon 1 (coding exon 1) of the DAGLB gene. This alteration results from a G to T substitution at nucleotide position 12, causing the methionine (M) at amino acid position 4 to be replaced by an isoleucine (I). 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

Uncertain

0.43

BayesDel_addAF

Benign

-0.37

BayesDel_noAF

Benign

-0.37

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.051

T;.;T

Eigen

Benign

-0.099

Eigen_PC

Benign

0.088

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.84

T;T;T

M_CAP

Benign

0.030

MetaRNN

Benign

0.071

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.6

L;L;.

PrimateAI

Pathogenic

0.80

PROVEAN

Benign

-0.79

N;N;N

REVEL

Benign

0.093

Sift

Benign

0.95

T;T;T

Sift4G

Uncertain

0.044

D;D;.

Polyphen

0.0030

B;.;.

Vest4

0.32

MutPred

0.33

Gain of catalytic residue at M4 (P = 0.0456);Gain of catalytic residue at M4 (P = 0.0456);Gain of catalytic residue at M4 (P = 0.0456);

MVP

0.36

MPC

0.055

ClinPred

0.10

GERP RS

5.3

Varity_R

0.40

gMVP

0.50

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