chr16-4381130-C-A

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_138440.3(VASN):c.253C>A(p.Gln85Lys) variant causes a missense change. The variant allele was found at a frequency of 0.000116 in 1,610,196 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

VASN
NM_138440.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.15

Variant links:

Genes affected

VASN (HGNC:18517): (vasorin) Enables transforming growth factor beta binding activity. Involved in negative regulation of epithelial to mesenchymal transition and negative regulation of transforming growth factor beta receptor signaling pathway. Located in cell surface and extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]

VASN links:

CORO7 (HGNC:26161): (coronin 7) This gene encodes a member of the coronin protein family. However, unlike other coronin proteins, it is not an actin-binding protein but rather functions as an F-actin regulator directing anterograde Golgi to endosome transport. The encoded protein has two tandem WD-40 domain repeats and localizes to the trans-Golgi network. The protein undergoes K33-linked polyubiquitination via an E3 ligase complex. It is thought to play an essential role in maintenance of Golgi apparatus morphology. Alternative splicing results in multiple transcripts variants; some of which form read-through transcripts with a neighboring gene. [provided by RefSeq, Dec 2016]

CORO7 links:

CORO7-PAM16 (HGNC:44424): (CORO7-PAM16 readthrough) This locus represents naturally occurring read-through transcription between the neighboring CORO7 (coronin 7) and PAM16 (presequence translocase-associated motor 16) genes on chromosome 16. The read-through transcript encodes a fusion protein that shares sequence identity with each individual gene product. [provided by RefSeq, Jan 2011]

CORO7-PAM16 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAdExome4 at 184 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
VASN	NM_138440.3 link	c.253C>A	p.Gln85Lys	missense_variant	Exon 2 of 2	ENST00000304735.4	NP_612449.2	Q6EMK4
CORO7	NM_024535.5 link	c.785+6856G>T		intron_variant	Intron 9 of 27	ENST00000251166.9	NP_078811.3	P57737-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
VASN	ENST00000304735.4 link	c.253C>A	p.Gln85Lys	missense_variant	Exon 2 of 2	1	NM_138440.3	ENSP00000306864.3	Q6EMK4
CORO7	ENST00000251166.9 link	c.785+6856G>T		intron_variant	Intron 9 of 27	1	NM_024535.5	ENSP00000251166.4	P57737-1
CORO7-PAM16	ENST00000572467.5 link	c.785+6856G>T		intron_variant	Intron 9 of 30	2		ENSP00000460885.1	A0A0A6YYL4

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152250

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

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

GnomAD3 exomes

AF:

0.00000828

AC:

AN:

241596

Hom.:

AF XY:

0.00

AC XY:

AN XY:

131804

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:

0.0000185

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000126

AC:

184

AN:

1457946

Hom.:

Cov.:

AF XY:

0.000105

AC XY:

AN XY:

725124

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

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:

0.000163

Gnomad4 OTH exome

AF:

0.0000332

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152250

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74384

show subpopulations

Gnomad4 AFR

AF:

0.0000482

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

Alfa

AF:

0.0000847

Hom.:

Bravo

AF:

0.0000189

ExAC

AF:

0.00000827

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 15, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.253C>A (p.Q85K) alteration is located in exon 2 (coding exon 1) of the VASN gene. This alteration results from a C to A substitution at nucleotide position 253, causing the glutamine (Q) at amino acid position 85 to be replaced by a lysine (K). 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

0.24

BayesDel_addAF

Uncertain

0.045

BayesDel_noAF

Benign

-0.15

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.038

Eigen

Uncertain

0.54

Eigen_PC

Uncertain

0.63

FATHMM_MKL

Uncertain

0.97

M_CAP

Benign

0.060

MetaRNN

Uncertain

0.65

MetaSVM

Uncertain

-0.087

MutationAssessor

Benign

0.010

PrimateAI

Uncertain

0.69

PROVEAN

Benign

0.010

REVEL

Uncertain

0.35

Sift

Benign

0.29

Sift4G

Uncertain

0.036

Polyphen

0.99

Vest4

0.64

MutPred

0.48

Gain of ubiquitination at Q85 (P = 0.023);

MVP

0.89

MPC

0.46

ClinPred

0.79

GERP RS

5.8

Varity_R

0.16

gMVP

0.68

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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