Genetic Variant LYPLAL1:p.Gly6Ala (chr1-219173907-G-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_138794.5(LYPLAL1):c.17G>C(p.Gly6Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000093 in 1,613,274 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

LYPLAL1
NM_138794.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.169

Variant links:

Genes affected

LYPLAL1 (HGNC:20440): (lysophospholipase like 1) Predicted to enable carboxylic ester hydrolase activity and palmitoyl-(protein) hydrolase activity. Predicted to be involved in protein depalmitoylation. Predicted to act upstream of or within negative regulation of Golgi to plasma membrane protein transport. Located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

LYPLAL1 links:

LYPLAL1-DT (HGNC:50560): (LYPLAL1 divergent transcript)

LYPLAL1-DT links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.028572202).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LYPLAL1	NM_138794.5 link	c.17G>C	p.Gly6Ala	missense_variant	Exon 1 of 5	ENST00000366928.10	NP_620149.2	Q5VWZ2-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LYPLAL1	ENST00000366928.10 link	c.17G>C	p.Gly6Ala	missense_variant	Exon 1 of 5	1	NM_138794.5	ENSP00000355895.5		Q5VWZ2-1

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152226

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.0000161

AC:

AN:

249056

Hom.:

AF XY:

0.00

AC XY:

AN XY:

134968

show subpopulations

Gnomad AFR exome

AF:

0.000248

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1460930

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

726846

show subpopulations

Gnomad4 AFR exome

AF:

0.000149

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:

0.00

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000525

AC:

AN:

152344

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74500

show subpopulations

Gnomad4 AFR

AF:

0.000168

Gnomad4 AMR

AF:

0.0000653

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:

0.0000712

Hom.:

Bravo

AF:

0.0000907

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000330

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 25, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.17G>C (p.G6A) alteration is located in exon 1 (coding exon 1) of the LYPLAL1 gene. This alteration results from a G to C substitution at nucleotide position 17, causing the glycine (G) at amino acid position 6 to be replaced by an alanine (A). 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

0.087

BayesDel_addAF

Benign

-0.58

BayesDel_noAF

Benign

-0.77

CADD

Benign

0.54

DANN

Benign

0.34

DEOGEN2

Benign

0.0058

T;.

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.037

LIST_S2

Benign

0.28

T;T

M_CAP

Benign

0.0083

MetaRNN

Benign

0.029

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.20

N;N

PrimateAI

Benign

0.33

PROVEAN

Benign

0.87

N;N

REVEL

Benign

0.071

Sift

Benign

0.39

T;T

Sift4G

Benign

0.84

T;T

Polyphen

0.0050

B;B

Vest4

0.22

MVP

0.16

MPC

0.0029

ClinPred

0.015

GERP RS

0.61

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.027

gMVP

0.35

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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