2-20740168-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_021925.4(LDAH):​c.506G>A​(p.Arg169Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,613,872 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

LDAH
NM_021925.4 missense

Scores

1
9
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.99
Variant links:
Genes affected
LDAH (HGNC:26145): (lipid droplet associated hydrolase) Predicted to enable lipase activity. Predicted to be involved in lipid storage. Predicted to be located in endoplasmic reticulum. Predicted to be active in lipid droplet. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LDAHNM_021925.4 linkuse as main transcriptc.506G>A p.Arg169Gln missense_variant 5/7 ENST00000237822.8 NP_068744.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LDAHENST00000237822.8 linkuse as main transcriptc.506G>A p.Arg169Gln missense_variant 5/71 NM_021925.4 ENSP00000237822 P1Q9H6V9-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152110
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
250754
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135514
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000265
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000103
AC:
15
AN:
1461762
Hom.:
0
Cov.:
32
AF XY:
0.00000963
AC XY:
7
AN XY:
727188
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000108
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152110
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74306
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000264
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000412
AC:
5
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
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMay 27, 2022The c.506G>A (p.R169Q) alteration is located in exon 5 (coding exon 4) of the LDAH gene. This alteration results from a G to A substitution at nucleotide position 506, causing the arginine (R) at amino acid position 169 to be replaced by a glutamine (Q). 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
0.24
BayesDel_addAF
Benign
-0.063
T
BayesDel_noAF
Benign
-0.15
CADD
Pathogenic
28
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.094
.;.;T;T;T;T;.;.;T
Eigen
Uncertain
0.52
Eigen_PC
Uncertain
0.53
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Uncertain
0.97
.;D;D;D;D;D;D;D;D
M_CAP
Uncertain
0.27
D
MetaRNN
Uncertain
0.53
D;D;D;D;D;D;D;D;D
MetaSVM
Benign
-0.36
T
MutationTaster
Benign
1.0
D;D;D;D;D;D
PROVEAN
Uncertain
-2.9
.;D;.;D;D;D;.;D;N
REVEL
Benign
0.24
Sift
Uncertain
0.012
.;D;.;D;D;D;.;D;D
Sift4G
Uncertain
0.018
D;D;D;D;D;D;D;.;.
Polyphen
0.98, 0.98
.;.;.;.;D;D;.;.;.
Vest4
0.58
MVP
0.92
MPC
0.54
ClinPred
0.98
D
GERP RS
5.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.84
gMVP
0.63

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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.

Other links and lift over

dbSNP: rs148350771; hg19: chr2-20939928; COSMIC: COSV52973496; COSMIC: COSV52973496; API