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GeneBe

17-76081401-C-T

Variant summary

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

The NM_180990.4(ZACN):​c.668C>T​(p.Thr223Met) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000234 in 1,614,062 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 18/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00025 ( 0 hom. )

Consequence

ZACN
NM_180990.4 missense, splice_region

Scores

1
18
Splicing: ADA: 0.0001688
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.0600
Variant links:
Genes affected
ZACN (HGNC:29504): (zinc activated ion channel) LGICZ1 is a zinc-activated ligand-gated ion channel that defines a new subgroup of the cysteine-loop superfamily of ligand-gated ion channels (Davies et al., 2003 [PubMed 12381728]).[supplied by OMIM, Mar 2008]
EXOC7 (HGNC:23214): (exocyst complex component 7) The protein encoded by this gene is a component of the exocyst complex. The exocyst complex plays a critical role in vesicular trafficking and the secretory pathway by targeting post-Golgi vesicles to the plasma membrane. The encoded protein is required for assembly of the exocyst complex and docking of the complex to the plasma membrane. The encoded protein may also play a role in pre-mRNA splicing through interactions with pre-mRNA-processing factor 19. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene, and a pseudogene of this gene is located on the long arm of chromosome 4. [provided by RefSeq, Nov 2011]

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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=0.17677128).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ZACNNM_180990.4 linkuse as main transcriptc.668C>T p.Thr223Met missense_variant, splice_region_variant 6/9 ENST00000334586.10
EXOC7NM_001013839.4 linkuse as main transcriptc.*2247G>A 3_prime_UTR_variant 19/19 ENST00000589210.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ZACNENST00000334586.10 linkuse as main transcriptc.668C>T p.Thr223Met missense_variant, splice_region_variant 6/91 NM_180990.4 P1Q401N2-1
EXOC7ENST00000589210.6 linkuse as main transcriptc.*2247G>A 3_prime_UTR_variant 19/191 NM_001013839.4 Q9UPT5-1

Frequencies

GnomAD3 genomes
AF:
0.0000525
AC:
8
AN:
152236
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000723
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000837
AC:
21
AN:
250934
Hom.:
0
AF XY:
0.0000958
AC XY:
13
AN XY:
135680
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000272
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000132
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000253
AC:
370
AN:
1461708
Hom.:
0
Cov.:
30
AF XY:
0.000254
AC XY:
185
AN XY:
727162
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000321
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.0000525
AC:
8
AN:
152354
Hom.:
0
Cov.:
32
AF XY:
0.0000268
AC XY:
2
AN XY:
74488
show subpopulations
Gnomad4 AFR
AF:
0.0000721
Gnomad4 AMR
AF:
0.0000653
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000156
Hom.:
0
Bravo
AF:
0.0000529
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.0000412
AC:
5
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000178

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.081
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.40
CADD
Benign
15
DANN
Benign
0.83
DEOGEN2
Benign
0.010
T
Eigen
Benign
-0.87
Eigen_PC
Benign
-0.92
FATHMM_MKL
Benign
0.59
D
LIST_S2
Benign
0.49
T
M_CAP
Benign
0.079
D
MetaRNN
Benign
0.18
T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
1.8
L
MutationTaster
Benign
1.0
D;D;N
PrimateAI
Benign
0.35
T
PROVEAN
Benign
-1.4
N
REVEL
Benign
0.20
Sift
Benign
0.14
T
Sift4G
Uncertain
0.0060
D
Polyphen
0.98
D
Vest4
0.30
MVP
0.076
MPC
0.28
ClinPred
0.092
T
GERP RS
-0.15
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.023
gMVP
0.44

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00017
dbscSNV1_RF
Benign
0.10
SpliceAI score (max)
0.17
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.

Other links and lift over

dbSNP: rs200623073; hg19: chr17-74077482; COSMIC: COSV100135683; COSMIC: COSV100135683; API