8-97775936-G-C

Variant names:

Variant summary

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

The ENST00000445593.6(LAPTM4B):c.200G>C(p.Arg67Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000885 in 1,469,342 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R67C) has been classified as Uncertain significance.

Frequency

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

Exomes 𝑓: 0.0000038 ( 0 hom. )

Consequence

LAPTM4B
ENST00000445593.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.278

Variant links:

Genes affected

LAPTM4B (HGNC:13646): (lysosomal protein transmembrane 4 beta) Enables ceramide binding activity; enzyme binding activity; and phosphatidylinositol bisphosphate binding activity. Involved in several processes, including negative regulation of macromolecule metabolic process; regulation of lysosomal membrane permeability; and regulation of lysosome organization. Located in several cellular components, including endosome; lysosomal membrane; and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

LAPTM4B links:

LOC124901986 (HGNC:):

LOC124901986 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=0.08723083).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LAPTM4B	NM_018407.6 link	c.-74G>C		5_prime_UTR_variant	Exon 1 of 7	ENST00000521545.7	NP_060877.4	Q86VI4-2
LOC124901986	XR_007061020.1 link	n.-161C>G		upstream_gene_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
LAPTM4B	ENST00000445593.6 link	c.200G>C	p.Arg67Pro	missense_variant	Exon 1 of 7	1		ENSP00000402301.2	Q86VI4-3
LAPTM4B	ENST00000619747.1 link	c.200G>C	p.Arg67Pro	missense_variant	Exon 1 of 7	1		ENSP00000482533.1	Q86VI4-3
LAPTM4B	ENST00000521545 link	c.-74G>C		5_prime_UTR_variant	Exon 1 of 7	1	NM_018407.6	ENSP00000428409.1	Q86VI4-2
LAPTM4B	ENST00000517924 link	c.-74G>C		5_prime_UTR_variant	Exon 1 of 5	5		ENSP00000429868.2	H0YBN1

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152058

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000193

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000134

AC:

AN:

74754

Hom.:

AF XY:

0.00

AC XY:

AN XY:

43496

show subpopulations

Gnomad AFR exome

AF:

0.000526

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:

0.00000380

AC:

AN:

1317284

Hom.:

Cov.:

AF XY:

0.00000154

AC XY:

AN XY:

649380

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:

0.0000183

GnomAD4 genome

AF:

0.0000526

AC:

AN:

152058

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74264

show subpopulations

Gnomad4 AFR

AF:

0.000193

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:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000680

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 10, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.200G>C (p.R67P) alteration is located in exon 1 (coding exon 1) of the LAPTM4B gene. This alteration results from a G to C substitution at nucleotide position 200, causing the arginine (R) at amino acid position 67 to be replaced by a proline (P). 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

0.086

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.50

CADD

Benign

DANN

Benign

0.94

DEOGEN2

Benign

0.010

T;T

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.15

LIST_S2

Benign

0.28

T;.

M_CAP

Uncertain

0.090

MetaRNN

Benign

0.087

T;T

MetaSVM

Benign

-1.0

PrimateAI

Uncertain

0.77

PROVEAN

Benign

-0.50

.;N

REVEL

Benign

0.0080

Sift

Uncertain

0.0050

.;D

Sift4G

Benign

0.23

T;T

Vest4

0.26

MVP

0.26

MPC

1.1

ClinPred

0.18

GERP RS

0.86

Varity_R

0.12

gMVP

0.22

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