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GeneBe

21-39405959-C-T

Variant summary

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

The NM_152505.4(LCA5L):c.1936G>A(p.Gly646Arg) variant causes a missense change. The variant allele was found at a frequency of 0.0000657 in 1,613,902 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000068 ( 0 hom. )

Consequence

LCA5L
NM_152505.4 missense

Scores

1
7
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.62
Variant links:
Genes affected
LCA5L (HGNC:1255): (lebercilin LCA5 like) Predicted to be involved in intraciliary transport. Predicted to be active in axoneme. [provided by Alliance of Genome Resources, Apr 2022]
GET1 (HGNC:12790): (guided entry of tail-anchored proteins factor 1) This gene is located in the candidate region for congenital heart disease (CHD) in Down syndrome (DS). It encodes a basic protein that functions as a receptor that promotes insertion of tail-anchored proteins in the endoplasmic reticulum membrane. This gene is located at a maternally-methylated differentially methylated region (DMR); however, its transcription may be biallelic, not imprinted. Alternative splicing results in different transcript variants. A pseudogene has been defined on chromosome 4. [provided by RefSeq, Apr 2017]

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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/exons MANE UniProt
LCA5LNM_152505.4 linkuse as main transcriptc.1936G>A p.Gly646Arg missense_variant 11/11 ENST00000288350.8
GET1-SH3BGRNR_146618.2 linkuse as main transcriptn.556C>T non_coding_transcript_exon_variant 5/14

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
LCA5LENST00000288350.8 linkuse as main transcriptc.1936G>A p.Gly646Arg missense_variant 11/115 NM_152505.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152120
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000656
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:
0.0000294
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000318
AC:
8
AN:
251378
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135892
show subpopulations
Gnomad AFR exome
AF:
0.0000617
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.0000684
AC:
100
AN:
1461782
Hom.:
0
Cov.:
31
AF XY:
0.0000743
AC XY:
54
AN XY:
727196
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.000186
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000701
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152120
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74314
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.0000656
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000478
Bravo
AF:
0.0000264
ExAC
AF:
0.0000412
AC:
5
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 14, 2021The c.1936G>A (p.G646R) alteration is located in exon 10 (coding exon 7) of the LCA5L gene. This alteration results from a G to A substitution at nucleotide position 1936, causing the glycine (G) at amino acid position 646 to be replaced by an arginine (R). 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
0.32
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.18
Cadd
Benign
23
Dann
Uncertain
1.0
DEOGEN2
Benign
0.026
T;T;T
Eigen
Benign
0.16
Eigen_PC
Benign
0.21
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Benign
0.74
T;.;.
M_CAP
Uncertain
0.17
D
MetaRNN
Uncertain
0.71
D;D;D
MetaSVM
Benign
-0.64
T
MutationAssessor
Uncertain
2.2
M;M;M
MutationTaster
Benign
0.68
D;D;D;D
PrimateAI
Uncertain
0.49
T
PROVEAN
Uncertain
-3.3
D;D;D
REVEL
Benign
0.28
Sift
Pathogenic
0.0
D;D;D
Sift4G
Benign
0.14
T;T;T
Polyphen
0.94
P;P;P
Vest4
0.69
MutPred
0.20
Gain of solvent accessibility (P = 0.0042);Gain of solvent accessibility (P = 0.0042);Gain of solvent accessibility (P = 0.0042);
MVP
0.82
MPC
0.45
ClinPred
0.73
D
GERP RS
4.1
Varity_R
0.40
gMVP
0.21

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.

Other links and lift over

dbSNP: rs752239600; hg19: chr21-40777885; API