chr17-75239537-G-C

Variant summary

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

The NM_138619.4(GGA3):ā€‹c.1618C>Gā€‹(p.Leu540Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000708 in 1,411,512 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 31)
Exomes š‘“: 7.1e-7 ( 0 hom. )

Consequence

GGA3
NM_138619.4 missense

Scores

2
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.36
Variant links:
Genes affected
GGA3 (HGNC:17079): (golgi associated, gamma adaptin ear containing, ARF binding protein 3) This gene encodes a member of the Golgi-localized, gamma adaptin ear-containing, ARF-binding (GGA) family. This family includes ubiquitous coat proteins that regulate the trafficking of proteins between the trans-Golgi network and the lysosome. These proteins share an amino-terminal VHS domain which mediates sorting of the mannose 6-phosphate receptors at the trans-Golgi network. They also contain a carboxy-terminal region with homology to the ear domain of gamma-adaptins. Multiple alternatively spliced transcript variants have been identified in this gene. [provided by RefSeq, Feb 2010]

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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=0.10582322).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GGA3NM_138619.4 linkuse as main transcriptc.1618C>G p.Leu540Val missense_variant 14/17 ENST00000537686.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GGA3ENST00000537686.6 linkuse as main transcriptc.1618C>G p.Leu540Val missense_variant 14/171 NM_138619.4 P1Q9NZ52-1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
AF:
7.08e-7
AC:
1
AN:
1411512
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
698744
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31

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 GeneticsDec 01, 2022The c.1618C>G (p.L540V) alteration is located in exon 14 (coding exon 14) of the GGA3 gene. This alteration results from a C to G substitution at nucleotide position 1618, causing the leucine (L) at amino acid position 540 to be replaced by a valine (V). 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
0.057
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.49
CADD
Benign
15
DANN
Benign
0.73
DEOGEN2
Benign
0.031
.;T;.;.;.
Eigen
Benign
-0.48
Eigen_PC
Benign
-0.49
FATHMM_MKL
Benign
0.29
N
LIST_S2
Uncertain
0.87
D;.;D;D;D
M_CAP
Benign
0.0074
T
MetaRNN
Benign
0.11
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.4
.;M;.;.;.
MutationTaster
Benign
1.0
N;N;N;N;N;N
PrimateAI
Benign
0.31
T
REVEL
Benign
0.035
Sift4G
Benign
0.46
T;T;T;T;T
Polyphen
0.13
B;B;.;.;.
Vest4
0.26
MutPred
0.20
.;Loss of glycosylation at P539 (P = 0.1429);.;.;.;
MVP
0.40
ClinPred
0.16
T
GERP RS
3.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.11
gMVP
0.19

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr17-73235618; API