rs75368761

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_004744.5(LRAT):c.74T>A(p.Phe25Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00124 in 1,614,094 control chromosomes in the GnomAD database, including 29 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0070 ( 17 hom., cov: 31)

Exomes 𝑓: 0.00065 ( 12 hom. )

Consequence

LRAT
NM_004744.5 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6O:1

Conservation

PhyloP100: 1.92

Publications

2 publications found

Variant links:

Genes affected

LRAT (HGNC:6685): (lecithin retinol acyltransferase) The protein encoded by this gene localizes to the endoplasmic reticulum, where it catalyzes the esterification of all-trans-retinol into all-trans-retinyl ester. This reaction is an important step in vitamin A metabolism in the visual system. Mutations in this gene have been associated with early-onset severe retinal dystrophy and Leber congenital amaurosis 14. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2014]

LRAT Gene-Disease associations (from GenCC):

Leber congenital amaurosis 14
Inheritance: AR Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
Leber congenital amaurosis
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
retinitis pigmentosa
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
severe early-childhood-onset retinal dystrophy
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

LRAT links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0054549873).

BP6

Variant 4-154744400-T-A is Benign according to our data. Variant chr4-154744400-T-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 100574.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00697 (1061/152216) while in subpopulation AFR AF = 0.0247 (1028/41548). AF 95% confidence interval is 0.0235. There are 17 homozygotes in GnomAd4. There are 491 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 17 AR,AD gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004744.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LRAT	NM_004744.5	MANE Select	c.74T>A	p.Phe25Tyr	missense	Exon 2 of 3	NP_004735.2
	LRAT	NM_001301645.2		c.74T>A	p.Phe25Tyr	missense	Exon 2 of 3	NP_001288574.1	O95237

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
LRAT	ENST00000336356.4	TSL:1 MANE Select	c.74T>A	p.Phe25Tyr	missense	Exon 2 of 3	ENSP00000337224.3	O95237
LRAT	ENST00000507827.5	TSL:1	c.74T>A	p.Phe25Tyr	missense	Exon 2 of 3	ENSP00000426761.1	O95237
LRAT	ENST00000510733.1	TSL:1	n.401T>A		non_coding_transcript_exon	Exon 1 of 2

Frequencies

GnomAD3 genomes

AF:

0.00696

AC:

1059

AN:

152098

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0248

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00144

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00287

GnomAD2 exomes

AF:

0.00169

AC:

424

AN:

251436

AF XY:

0.000986

show subpopulations

Gnomad AFR exome

AF:

0.0251

Gnomad AMR exome

AF:

0.000347

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000646

AC:

944

AN:

1461878

Hom.:

Cov.:

AF XY:

0.000547

AC XY:

398

AN XY:

727240

show subpopulations

African (AFR)

AF:

0.0254

AC:

850

AN:

33478

American (AMR)

AF:

0.000537

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53408

Middle Eastern (MID)

AF:

0.000693

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000809

AC:

AN:

1112010

Other (OTH)

AF:

0.000944

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

118

177

236

295

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

120

150

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00697

AC:

1061

AN:

152216

Hom.:

Cov.:

AF XY:

0.00660

AC XY:

491

AN XY:

74440

show subpopulations

African (AFR)

AF:

0.0247

AC:

1028

AN:

41548

American (AMR)

AF:

0.00144

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5144

South Asian (SAS)

AF:

0.000207

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68012

Other (OTH)

AF:

0.00284

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

Heterozygous variant carriers

104

157

209

261

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<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:

0.00105

Hom.:

Bravo

AF:

0.00766

ESP6500AA

AF:

0.0284

AC:

125

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00229

AC:

278

Asia WGS

AF:

0.000866

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (4)

Leber congenital amaurosis 14 (1)

not specified (1)

Retinitis pigmentosa (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Benign

-0.49

BayesDel_noAF

Benign

-0.45

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.47

Eigen

Uncertain

0.23

Eigen_PC

Benign

0.19

FATHMM_MKL

Uncertain

0.90

LIST_S2

Benign

0.58

MetaRNN

Benign

0.0055

MetaSVM

Benign

-0.95

MutationAssessor

Uncertain

2.4

PhyloP100

1.9

PrimateAI

Benign

0.42

PROVEAN

Benign

-1.8

REVEL

Benign

0.13

Sift

Benign

0.20

Sift4G

Benign

0.20

Polyphen

0.96

Vest4

0.14

MVP

0.40

MPC

0.70

ClinPred

0.047

GERP RS

5.0

PromoterAI

0.0023

Neutral

(source)

Varity_R

0.24

gMVP

0.64

Mutation Taster

=99/1

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

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over