Genetic Variant LYPD4:p.Arg111Trp (chr19-41838142-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_173506.7(LYPD4):c.331C>T(p.Arg111Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000434 in 1,612,914 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000045 ( 0 hom. )

Consequence

LYPD4
NM_173506.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.48

Variant links:

Genes affected

LYPD4 (HGNC:28659): (LY6/PLAUR domain containing 4) Predicted to be located in extracellular region and plasma membrane. Predicted to be active in plasma membrane raft. Predicted to be anchored component of plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

LYPD4 links:

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 rank	MANE	Protein	UniProt
LYPD4	NM_173506.7 link	c.331C>T	p.Arg111Trp	missense_variant	Exon 4 of 5	ENST00000609812.6	NP_775777.3	Q6UWN0-1A8K8E0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
LYPD4	ENST00000609812.6 link	c.331C>T	p.Arg111Trp	missense_variant	Exon 4 of 5	1	NM_173506.7	ENSP00000476510.1	Q6UWN0-1
LYPD4	ENST00000343055.5 link	c.226C>T	p.Arg76Trp	missense_variant	Exon 4 of 5	1		ENSP00000339568.4	Q6UWN0-2
LYPD4	ENST00000601246.5 link	c.226C>T	p.Arg76Trp	missense_variant	Exon 5 of 6	5		ENSP00000472570.1	Q6UWN0-2

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152130

Hom.:

Cov.:

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:

0.000193

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:

0.0000439

AC:

AN:

250454

Hom.:

AF XY:

0.0000443

AC XY:

AN XY:

135368

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000291

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.0000328

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000530

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000452

AC:

AN:

1460666

Hom.:

Cov.:

AF XY:

0.0000372

AC XY:

AN XY:

726512

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000157

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000450

Gnomad4 OTH exome

AF:

0.0000829

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152248

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74434

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000744

Hom.:

Bravo

AF:

0.0000340

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000594

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 08, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.331C>T (p.R111W) alteration is located in exon 4 (coding exon 3) of the LYPD4 gene. This alteration results from a C to T substitution at nucleotide position 331, causing the arginine (R) at amino acid position 111 to be replaced by a tryptophan (W). 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

0.29

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.23

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.21

.;T;.

Eigen

Uncertain

0.44

Eigen_PC

Uncertain

0.33

FATHMM_MKL

Benign

0.56

LIST_S2

Uncertain

0.90

D;D;.

M_CAP

Benign

0.033

MetaRNN

Uncertain

0.70

D;D;D

MetaSVM

Benign

-0.93

MutationAssessor

Pathogenic

3.0

.;M;.

PrimateAI

Uncertain

0.61

PROVEAN

Pathogenic

-4.6

D;.;.

REVEL

Benign

0.13

Sift

Uncertain

0.0010

D;.;.

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

1.0

D;D;D

Vest4

0.75

MVP

0.23

ClinPred

0.74

GERP RS

3.0

Varity_R

0.13

gMVP

0.47

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