Genetic Variant EXOC3L4:p.Arg236Cys (chr14-103102429-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_001077594.2(EXOC3L4):c.706C>T(p.Arg236Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000218 in 1,516,818 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 34)

Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

EXOC3L4
NM_001077594.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.477

Variant links:

Genes affected

EXOC3L4 (HGNC:20120): (exocyst complex component 3 like 4) Predicted to enable SNARE binding activity. Predicted to be involved in exocyst localization and exocytosis. Predicted to be part of exocyst. [provided by Alliance of Genome Resources, Apr 2022]

EXOC3L4 links:

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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=0.0955728).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EXOC3L4	NM_001077594.2 link	c.706C>T	p.Arg236Cys	missense_variant	Exon 3 of 12	ENST00000688303.1	NP_001071062.1	Q17RC7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EXOC3L4	ENST00000688303.1 link	c.706C>T	p.Arg236Cys	missense_variant	Exon 3 of 12		NM_001077594.2	ENSP00000509130.1		Q17RC7

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000453

AC:

AN:

110478

Hom.:

AF XY:

0.0000644

AC XY:

AN XY:

62104

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000462

Gnomad ASJ exome

AF:

0.000147

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000691

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000227

AC:

AN:

1364642

Hom.:

Cov.:

AF XY:

0.0000119

AC XY:

AN XY:

673906

show subpopulations

Gnomad4 AFR exome

AF:

0.0000355

Gnomad4 AMR exome

AF:

0.0000301

Gnomad4 ASJ exome

AF:

0.0000417

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000261

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152176

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74338

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

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:

0.00

Alfa

AF:

0.0000873

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.0000638

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 14, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.706C>T (p.R236C) alteration is located in exon 2 (coding exon 2) of the EXOC3L4 gene. This alteration results from a C to T substitution at nucleotide position 706, causing the arginine (R) at amino acid position 236 to be replaced by a cysteine (C). 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

0.10

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.73

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.0040

Eigen

Benign

-0.44

Eigen_PC

Benign

-0.63

FATHMM_MKL

Benign

0.086

LIST_S2

Benign

0.69

M_CAP

Benign

0.010

MetaRNN

Benign

0.096

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.4

PrimateAI

Uncertain

0.69

PROVEAN

Benign

-1.8

REVEL

Benign

0.079

Sift

Benign

0.097

Sift4G

Uncertain

0.033

Polyphen

1.0

Vest4

0.094

MutPred

0.65

Loss of MoRF binding (P = 0.0156);

MVP

0.040

MPC

1.3

ClinPred

0.40

GERP RS

-1.9

Varity_R

0.064

gMVP

0.41

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over