10-92915758-G-A

Variant summary

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

The NM_019053.6(EXOC6):​c.664G>A​(p.Ala222Thr) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000109 in 1,513,254 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

EXOC6
NM_019053.6 missense, splice_region

Scores

3
16
Splicing: ADA: 0.01315
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.37
Variant links:
Genes affected
EXOC6 (HGNC:23196): (exocyst complex component 6) The protein encoded by this gene is highly similar to the Saccharomyces cerevisiae SEC15 gene product, which is essential for vesicular traffic from the Golgi apparatus to the cell surface in yeast. It is one of the components of a multiprotein complex required for exocytosis. The 5' portion of this gene and two neighboring cytochrome p450 genes are included in a deletion that results in an autosomal-dominant form of nonsyndromic optic nerve aplasia (ONA). Alternative splicing and the use of alternative promoters results in multiple transcript variants. A paralogous gene encoding a similar protein is present on chromosome 2. [provided by RefSeq, Jan 2016]

Genome browser will be placed here

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=0.24398583).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
EXOC6NM_019053.6 linkuse as main transcriptc.664G>A p.Ala222Thr missense_variant, splice_region_variant 7/22 ENST00000260762.10 NP_061926.3 Q8TAG9-1B2RDH5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
EXOC6ENST00000260762.10 linkuse as main transcriptc.664G>A p.Ala222Thr missense_variant, splice_region_variant 7/221 NM_019053.6 ENSP00000260762.6 Q8TAG9-1

Frequencies

GnomAD3 genomes
AF:
0.0000462
AC:
7
AN:
151626
Hom.:
0
Cov.:
31
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:
0.000103
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000293
AC:
5
AN:
170928
Hom.:
0
AF XY:
0.0000420
AC XY:
4
AN XY:
95164
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000458
Gnomad OTH exome
AF:
0.000290
GnomAD4 exome
AF:
0.000116
AC:
158
AN:
1361628
Hom.:
0
Cov.:
28
AF XY:
0.000122
AC XY:
82
AN XY:
674686
show subpopulations
Gnomad4 AFR exome
AF:
0.0000369
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:
0.0000193
Gnomad4 NFE exome
AF:
0.000138
Gnomad4 OTH exome
AF:
0.000143
GnomAD4 genome
AF:
0.0000462
AC:
7
AN:
151626
Hom.:
0
Cov.:
31
AF XY:
0.0000405
AC XY:
3
AN XY:
74038
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:
0.000103
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000561
Hom.:
0
Bravo
AF:
0.0000604
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000330
AC:
4

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 GeneticsNov 10, 2024The c.664G>A (p.A222T) alteration is located in exon 7 (coding exon 7) of the EXOC6 gene. This alteration results from a G to A substitution at nucleotide position 664, causing the alanine (A) at amino acid position 222 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
0.18
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.30
CADD
Uncertain
23
DANN
Benign
0.63
DEOGEN2
Benign
0.096
.;.;T
Eigen
Benign
0.078
Eigen_PC
Benign
0.18
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.91
D;D;D
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.24
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.7
.;.;L
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
0.21
N;N;N
REVEL
Benign
0.19
Sift
Benign
1.0
T;T;T
Sift4G
Benign
0.65
T;T;T
Polyphen
0.80, 0.20
.;P;B
Vest4
0.58
MVP
0.38
MPC
0.22
ClinPred
0.14
T
GERP RS
4.0
Varity_R
0.30
gMVP
0.42

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.013
dbscSNV1_RF
Benign
0.33
SpliceAI score (max)
0.25
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.25
Position offset: 0

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: rs201510868; hg19: chr10-94675515; COSMIC: COSV53325295; API