Genetic Variant LRATD2:p.Pro278Leu (chr8-126556557-G-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_174911.5(LRATD2):c.833C>T(p.Pro278Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000131 in 1,606,640 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000083 ( 0 hom. )

Consequence

LRATD2
NM_174911.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.33

Publications

2 publications found

Variant links:

Genes affected

LRATD2 (HGNC:24166): (LRAT domain containing 2) Located in cytoplasm and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

LRATD2 links:

PCAT1 (HGNC:43022): (prostate cancer associated transcript 1) This gene produces a long non-coding RNA that promotes cell proliferation and is upregulated in prostate, colorectal, and other cancers. This RNA negatively regulates the BRCA2 tumor suppressor protein and positively regulates Myc oncoprotein. It contains binding sites for microRNAs, and may act as a sponge for microRNAs that regulate cell growth pathways. [provided by RefSeq, Dec 2017]

PCAT1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.06528568).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LRATD2	NM_174911.5 link	c.833C>T	p.Pro278Leu	missense_variant	Exon 2 of 2	ENST00000304916.4	NP_777571.1	Q96KN1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
LRATD2	ENST00000304916.4 link	c.833C>T	p.Pro278Leu	missense_variant	Exon 2 of 2	1	NM_174911.5	ENSP00000302578.3	Q96KN1
LRATD2	ENST00000652209.1 link	c.833C>T	p.Pro278Leu	missense_variant	Exon 1 of 1			ENSP00000498944.1	Q96KN1
PCAT1	ENST00000524320.2 link	n.235G>A		non_coding_transcript_exon_variant	Exon 1 of 2	2
LRATD2	ENST00000517458.1 link	n.-138C>T		upstream_gene_variant		2

Frequencies

GnomAD3 genomes

AF:

0.0000591

AC:

AN:

152262

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000523

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

GnomAD2 exomes

AF:

0.0000217

AC:

AN:

230868

AF XY:

0.0000157

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000152

Gnomad ASJ exome

AF:

0.00

Gnomad EAS 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:

0.00000825

AC:

AN:

1454378

Hom.:

Cov.:

AF XY:

0.00000692

AC XY:

AN XY:

723032

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33202

American (AMR)

AF:

0.000115

AC:

AN:

43650

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25904

East Asian (EAS)

AF:

0.00

AC:

AN:

39448

South Asian (SAS)

AF:

0.00

AC:

AN:

85316

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51846

Middle Eastern (MID)

AF:

0.000174

AC:

AN:

5748

European-Non Finnish (NFE)

AF:

0.00000361

AC:

AN:

1109258

Other (OTH)

AF:

0.0000333

AC:

AN:

60006

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.467

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000591

AC:

AN:

152262

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74386

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41466

American (AMR)

AF:

0.000523

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68046

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.486

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000831

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 24, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.833C>T (p.P278L) alteration is located in exon 2 (coding exon 1) of the FAM84B gene. This alteration results from a C to T substitution at nucleotide position 833, causing the proline (P) at amino acid position 278 to be replaced by a leucine (L). 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

0.083

BayesDel_addAF

Benign

-0.41

BayesDel_noAF

Benign

-0.57

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.012

Eigen

Benign

-0.39

Eigen_PC

Benign

-0.34

FATHMM_MKL

Benign

0.53

LIST_S2

Benign

0.76

M_CAP

Benign

0.024

MetaRNN

Benign

0.065

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.69

PhyloP100

2.3

PrimateAI

Benign

0.42

PROVEAN

Benign

-1.7

REVEL

Benign

0.086

Sift

Uncertain

0.0050

Sift4G

Uncertain

0.016

Polyphen

0.0020

Vest4

0.21

MutPred

0.18

Loss of loop (P = 0.0128);

MVP

0.66

MPC

0.76

ClinPred

0.24

GERP RS

4.0

Varity_R

0.095

gMVP

0.24

Mutation Taster

=96/4

polymorphism

(source)

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

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chr8-126556557-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over