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GeneBe

21-39406265-C-T

Variant summary

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

The NM_152505.4(LCA5L):c.1630G>A(p.Ala544Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,882 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

LCA5L
NM_152505.4 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.724
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 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.080755234).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
LCA5LNM_152505.4 linkuse as main transcriptc.1630G>A p.Ala544Thr missense_variant 11/11 ENST00000288350.8
GET1-SH3BGRNR_146618.2 linkuse as main transcriptn.655+207C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
LCA5LENST00000288350.8 linkuse as main transcriptc.1630G>A p.Ala544Thr missense_variant 11/115 NM_152505.4 P1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251462
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135904
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000163
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:
0.00000137
AC:
2
AN:
1461882
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.0000165
AC:
2

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 GeneticsJun 07, 2023The c.1630G>A (p.A544T) 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 1630, causing the alanine (A) at amino acid position 544 to be replaced by a threonine (T). 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
0.081
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.52
Cadd
Benign
12
Dann
Benign
0.88
DEOGEN2
Benign
0.0038
T;T;T
Eigen
Benign
-0.88
Eigen_PC
Benign
-0.99
FATHMM_MKL
Benign
0.10
N
LIST_S2
Benign
0.51
T;.;.
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.081
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.6
L;L;L
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.31
T
PROVEAN
Benign
-0.78
N;N;N
REVEL
Benign
0.13
Sift
Benign
0.067
T;T;T
Sift4G
Uncertain
0.047
D;D;D
Polyphen
0.73
P;P;P
Vest4
0.039
MutPred
0.15
Gain of glycosylation at A544 (P = 0.0423);Gain of glycosylation at A544 (P = 0.0423);Gain of glycosylation at A544 (P = 0.0423);
MVP
0.28
MPC
0.077
ClinPred
0.063
T
GERP RS
1.2
Varity_R
0.033
gMVP
0.086

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: rs760030888; hg19: chr21-40778191; API