chr6-132749813-G-A

Variant names:

• chr6-132749813-G-A
• rs933145880
• NM_004665.6:c.1253C>T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_004665.6(VNN2):​c.1253C>T​(p.Pro418Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,198 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
• Consequence: VNN2 NM_004665.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.74

Genes affected

VNN2 (HGNC:12706): (vanin 2) This gene product is a member of the Vanin family of proteins that share extensive sequence similarity with each other, and also with biotinidase. The family includes secreted and membrane-associated proteins, a few of which have been reported to participate in hematopoietic cell trafficking. No biotinidase activity has been demonstrated for any of the vanin proteins, however, they possess pantetheinase activity, which may play a role in oxidative-stress response. The encoded protein is a GPI-anchored cell surface molecule that plays a role in transendothelial migration of neutrophils. This gene lies in close proximity to, and in same transcriptional orientation as two other vanin genes on chromosome 6q23-q24. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, May 2011]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.31652296).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
VNN2	NM_004665.6	c.1253C>T	p.Pro418Leu	missense_variant	Exon 6 of 7	ENST00000326499.11	NP_004656.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
VNN2	ENST00000326499.11	c.1253C>T	p.Pro418Leu	missense_variant	Exon 6 of 7	1	NM_004665.6	ENSP00000322276.6

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152198 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000192

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 29

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152198 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 74360

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000192

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Uncertain	0.063	T
BayesDel_noAF	Benign	-0.15
CADD	Benign	19
DANN	Uncertain	0.99
DEOGEN2	Benign	0.11	T;.;.
Eigen	Benign	0.069
Eigen_PC	Benign	-0.057
FATHMM_MKL	Benign	0.34	N
LIST_S2	Uncertain	0.91	D;D;D
M_CAP	Uncertain	0.095	D
MetaRNN	Benign	0.32	T;T;T
MetaSVM	Uncertain	0.28	D
MutationAssessor	Uncertain	2.4	M;.;.
PrimateAI	Benign	0.30	T
PROVEAN	Pathogenic	-5.9	D;D;D
REVEL	Uncertain	0.37
Sift	Benign	0.074	T;D;T
Sift4G	Uncertain	0.026	D;D;T
Polyphen		0.67	P;.;D
Vest4		0.15
MutPred		0.44		Loss of disorder (P = 0.0429);.;.;
MVP		0.75
MPC		0.069
ClinPred		0.98	D
GERP RS		5.3
Varity_R		0.30
gMVP		0.67

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

Other links and lift over

dbSNP: rs933145880; hg19: chr6-133070952;