chr6-564063-C-T

Position:

• chr6-564063-C-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BS1 BS2

The NM_018303.6(EXOC2):​c.1759G>A​(p.Val587Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00172 in 1,614,062 control chromosomes in the GnomAD database, including 35 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: 𝑓 0.0086 (16 hom., cov: 33)
  • Exomes 𝑓: 0.0010 (19 hom.)
• Consequence: EXOC2 NM_018303.6 missense
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 1.63

Genes affected

EXOC2 (HGNC:24968): (exocyst complex component 2) The protein encoded by this gene is a component of the exocyst complex, a multi-protein complex essential for the polarized targeting of exocytic vesicles to specific docking sites on the plasma membrane. Though best characterized in yeast, the component proteins and the functions of the 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. This interaction has been shown to mediate filopodia formation in fibroblasts. This protein has been shown to interact with the Ral subfamily of GTPases and thereby mediate exocytosis by tethering vesicles to the plasma membrane. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2012]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.0031765103).
• BP6: Variant 6-564063-C-T is Benign according to our data. Variant chr6-564063-C-T is described in ClinVar as [Benign]. Clinvar id is 712583.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00859 (1308/152260) while in subpopulation AFR AF= 0.03 (1245/41534). AF 95% confidence interval is 0.0286. There are 16 homozygotes in gnomad4. There are 641 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 16 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
EXOC2	NM_018303.6	c.1759G>A	p.Val587Ile	missense_variant	16/28	ENST00000230449.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EXOC2	ENST00000230449.9	c.1759G>A	p.Val587Ile	missense_variant	16/28	1	NM_018303.6	P1

Frequencies

GnomAD3 genomes AF: 0.00856 AC: 1302 AN: 152142 Hom.: 16 Cov.: 33

Gnomad AFR AF: 0.0299

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00242

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000208

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000206

Gnomad OTH AF: 0.00526

GnomAD3 exomes AF: 0.00241 AC: 607 AN: 251380 Hom.: 4 AF XY: 0.00174 AC XY: 237 AN XY: 135870

Gnomad AFR exome AF: 0.0329

Gnomad AMR exome AF: 0.00153

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000163

Gnomad SAS exome AF: 0.0000654

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000106

Gnomad OTH exome AF: 0.000489

GnomAD4 exome AF: 0.00100 AC: 1466 AN: 1461802 Hom.: 19 Cov.: 30 AF XY: 0.000847 AC XY: 616 AN XY: 727210

Gnomad4 AFR exome AF: 0.0341

Gnomad4 AMR exome AF: 0.00172

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000756

Gnomad4 SAS exome AF: 0.0000464

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.000110

Gnomad4 OTH exome AF: 0.00194

GnomAD4 genome AF: 0.00859 AC: 1308 AN: 152260 Hom.: 16 Cov.: 33 AF XY: 0.00861 AC XY: 641 AN XY: 74442

Gnomad4 AFR AF: 0.0300

Gnomad4 AMR AF: 0.00242

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000208

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000206

Gnomad4 OTH AF: 0.00521

Alfa AF: 0.00181 Hom.: 4

Bravo AF: 0.00988

TwinsUK AF: 0.000270 AC: 1

ALSPAC AF: 0.000259 AC: 1

ESP6500AA AF: 0.0315 AC: 139

ESP6500EA AF: 0.000233 AC: 2

ExAC AF: 0.00292 AC: 354

Asia WGS AF: 0.00289 AC: 10 AN: 3478

EpiCase AF: 0.0000545

EpiControl AF: 0.0000593

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jun 29, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.071
BayesDel_addAF	Benign	-0.71	T
BayesDel_noAF	Benign	-0.76
CADD	Benign	14
DANN	Benign	0.97
DEOGEN2	Benign	0.082	T
Eigen	Benign	-0.70
Eigen_PC	Benign	-0.54
FATHMM_MKL	Benign	0.70	D
LIST_S2	Benign	0.78	T
MetaRNN	Benign	0.0032	T
MetaSVM	Benign	-0.93	T
MutationAssessor	Benign	0.0	N
MutationTaster	Benign	0.81	N;N
PrimateAI	Benign	0.24	T
PROVEAN	Benign	0.21	N
REVEL	Benign	0.022
Sift	Benign	0.47	T
Sift4G	Benign	0.51	T
Polyphen		0.0	B
Vest4		0.025
MVP		0.20
MPC		0.15
ClinPred		0.0064	T
GERP RS		2.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.011
gMVP		0.047

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.090		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

Other links and lift over

dbSNP: rs61744205; hg19: chr6-564063;