Genetic Variant LCAT:p.Arg347Gly (chr16-67940188-G-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000229.2(LCAT):c.1039C>G(p.Arg347Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000066 in 151,522 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R347C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Consequence

LCAT
NM_000229.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.169

Publications

5 publications found

Variant links:

Genes affected

LCAT (HGNC:6522): (lecithin-cholesterol acyltransferase) This gene encodes the extracellular cholesterol esterifying enzyme, lecithin-cholesterol acyltransferase. The esterification of cholesterol is required for cholesterol transport. Mutations in this gene have been found to cause fish-eye disease as well as LCAT deficiency. [provided by RefSeq, Jul 2008]

LCAT Gene-Disease associations (from GenCC):

fish eye disease
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet
LCAT deficiency
Inheritance: AR Classification: DEFINITIVE Submitted by: Ambry Genetics
Norum disease
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

LCAT links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.13003194).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LCAT	NM_000229.2 link	c.1039C>G	p.Arg347Gly	missense_variant	Exon 6 of 6	ENST00000264005.10	NP_000220.1	P04180A0A140VK24

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LCAT	ENST00000264005.10 link	c.1039C>G	p.Arg347Gly	missense_variant	Exon 6 of 6	1	NM_000229.2	ENSP00000264005.5		P04180

Frequencies

GnomAD3 genomes

AF:

0.00000660

AC:

AN:

151522

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000243

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

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000660

AC:

AN:

151522

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74000

show subpopulations

African (AFR)

AF:

0.0000243

AC:

AN:

41206

American (AMR)

AF:

0.00

AC:

AN:

15254

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5116

South Asian (SAS)

AF:

0.00

AC:

AN:

4796

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10580

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67790

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.087

BayesDel_addAF

Uncertain

0.053

BayesDel_noAF

Benign

-0.16

CADD

Benign

1.7

(source)

DANN

Benign

0.93

DEOGEN2

Uncertain

0.68

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.13

LIST_S2

Benign

0.26

M_CAP

Uncertain

0.11

MetaRNN

Benign

0.13

MetaSVM

Benign

-0.53

MutationAssessor

Benign

0.69

PhyloP100

0.17

PrimateAI

Benign

0.20

PROVEAN

Benign

-1.4

REVEL

Uncertain

0.31

Sift

Uncertain

0.026

Sift4G

Benign

0.34

Polyphen

0.0020

Vest4

0.082

MutPred

0.56

Gain of glycosylation at T345 (P = 0.0971);

MVP

0.54

MPC

0.52

ClinPred

0.19

GERP RS

-11

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.19

gMVP

0.83

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over