Genetic Variant EXOC3:p.Thr267Ser (chr5-453805-C-G) – 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_007277.5(EXOC3):c.800C>G(p.Thr267Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,644 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/19 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: 0.0000021 ( 0 hom. )

Consequence

EXOC3
NM_007277.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.81

Variant links:

Genes affected

EXOC3 (HGNC:30378): (exocyst complex component 3) The protein encoded by this gene is a component of the exocyst complex, a multiple protein complex essential for targeting exocytic vesicles to specific docking sites on the plasma membrane. Though best characterized in yeast, the component proteins and functions of exocyst complex have been demonstrated to be highly conserved in higher eukaryotes. At least eight components of the exocyst complex, including this protein, are found to interact with the actin cytoskeletal remodeling and vesicle transport machinery. The complex is also essential for the biogenesis of epithelial cell surface polarity. [provided by RefSeq, Jul 2008]

EXOC3 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=0.16932318).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EXOC3	NM_007277.5 link	c.800C>G	p.Thr267Ser	missense_variant	Exon 4 of 13	ENST00000512944.6	NP_009208.2	O60645A0A024QYZ6Q69YP2
EXOC3	XM_047416683.1 link	c.800C>G	p.Thr267Ser	missense_variant	Exon 4 of 7		XP_047272639.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
EXOC3	ENST00000512944.6 link	c.800C>G	p.Thr267Ser	missense_variant	Exon 4 of 13	1	NM_007277.5	ENSP00000425587.1	O60645
EXOC3	ENST00000315013.9 link	c.800C>G	p.Thr267Ser	missense_variant	Exon 3 of 12	2		ENSP00000323377.5	O60645
EXOC3	ENST00000503889.2 link	n.407C>G		non_coding_transcript_exon_variant	Exon 1 of 12	5		ENSP00000423435.1	H0Y995
EXOC3	ENST00000515601.6 link	n.800C>G		non_coding_transcript_exon_variant	Exon 4 of 12	5		ENSP00000424404.1	D6RB59

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000401

AC:

AN:

249076

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135154

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

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:

0.00000205

AC:

AN:

1461644

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727098

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 30, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.800C>G (p.T267S) alteration is located in exon 4 (coding exon 3) of the EXOC3 gene. This alteration results from a C to G substitution at nucleotide position 800, causing the threonine (T) at amino acid position 267 to be replaced by a serine (S). 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

0.11

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.39

CADD

Benign

DANN

Benign

0.96

Eigen

Benign

-0.13

Eigen_PC

Benign

0.019

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.79

.;T

M_CAP

Benign

0.0081

MetaRNN

Benign

0.17

T;T

MetaSVM

Benign

-1.1

PrimateAI

Uncertain

0.62

PROVEAN

Benign

-0.36

N;N

REVEL

Benign

0.12

Sift

Benign

0.049

D;D

Sift4G

Benign

0.11

T;T

Vest4

0.32

MVP

0.20

MPC

1.3

ClinPred

0.34

GERP RS

4.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

gMVP

0.31

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