Variant 5-54518641-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001102575.2(SNX18):c.689A>G(p.Asn230Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000513 in 1,558,512 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000050 ( 0 hom. )

Consequence

SNX18
NM_001102575.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.33

Variant links:

Genes affected

SNX18 (HGNC:19245): (sorting nexin 18) This gene encodes a member of the sorting nexin family. Members of this family contain a phox (PX) domain, which is a phosphoinositide binding domain, and are involved in intracellular trafficking. This protein does not contain a coiled coil region, like some family members, but contains a SH3 domain. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

SNX18 links:

SNX18 (HGNC:):

SNX18 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SNX18	NM_001102575.2 linkuse as main transcript	c.689A>G	p.Asn230Ser	missense_variant	1/2	ENST00000381410.5	NP_001096045.1	Q96RF0-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
SNX18	ENST00000381410.5 linkuse as main transcript	c.689A>G	p.Asn230Ser	missense_variant	1/2	1	NM_001102575.2	ENSP00000370817.4	Q96RF0-2
SNX18	ENST00000343017.11 linkuse as main transcript	c.689A>G	p.Asn230Ser	missense_variant	1/1	6		ENSP00000342276.7	Q96RF0-1
SNX18	ENST00000326277.5 linkuse as main transcript	c.689A>G	p.Asn230Ser	missense_variant	1/2	2		ENSP00000317332.4	Q96RF0-3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152134

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000498

AC:

AN:

1406260

Hom.:

Cov.:

101

AF XY:

0.00000288

AC XY:

AN XY:

694464

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.00

Gnomad4 NFE exome

AF:

0.00000644

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152252

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74456

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:

0.0000147

Gnomad4 OTH

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

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 01, 2024

The c.689A>G (p.N230S) alteration is located in exon 1 (coding exon 1) of the SNX18 gene. This alteration results from a A to G substitution at nucleotide position 689, causing the asparagine (N) at amino acid position 230 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

Pathogenic

0.67

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.59

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.22

.;.;T

Eigen

Uncertain

0.42

Eigen_PC

Uncertain

0.46

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.96

D;D;D

M_CAP

Benign

0.014

MetaRNN

Uncertain

0.53

D;D;D

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.97

L;L;L

PrimateAI

Pathogenic

0.85

PROVEAN

Uncertain

-3.3

D;D;D

REVEL

Benign

0.19

Sift

Benign

0.077

T;T;T

Sift4G

Benign

0.068

T;T;T

Polyphen

0.22, 1.0

.;B;D

Vest4

0.70

MutPred

0.22

Gain of phosphorylation at N230 (P = 0.0257);Gain of phosphorylation at N230 (P = 0.0257);Gain of phosphorylation at N230 (P = 0.0257);

MVP

0.60

ClinPred

0.95

GERP RS

4.7

Varity_R

0.26

gMVP

0.81

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