15-91251905-A-C

Variant names:

• chr15-91251905-A-C
• rs765964793
• NM_001323032.3:c.538A>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001323032.3(SV2B):​c.538A>C​(p.Met180Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000372 in 1,614,152 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000034 (0 hom.)
• Consequence: SV2B NM_001323032.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.01
• Publications: 0 publications found

Genes affected

SV2B (HGNC:16874): (synaptic vesicle glycoprotein 2B) This gene encodes a member of the synaptic vesicle proteins 2 (SV2) family and major facilitator superfamily of proteins. This protein and other members of the family are localized to synaptic vesicles and may function in the regulation of vesicle trafficking and exocytosis. Studies in mice suggest that the encoded protein may act as a protein receptor for botulinum neurotoxin E in neurons, and that this protein may be important for the integrity of the glomerular filtration barrier. This gene shows reduced expression in areas of synaptic loss in the hippocampus of human temporal lobe epilepsy patients. [provided by RefSeq, Sep 2016]

ENSG00000301795 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.16140291).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001323032.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SV2B	NM_001323032.3	MANE Select	c.538A>C	p.Met180Leu	missense	Exon 3 of 13	NP_001309961.1	Q7L1I2-1
	SV2B	NM_001323031.2		c.538A>C	p.Met180Leu	missense	Exon 3 of 13	NP_001309960.1	Q7L1I2-1
	SV2B	NM_001323037.3		c.538A>C	p.Met180Leu	missense	Exon 4 of 14	NP_001309966.1	Q7L1I2-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SV2B	ENST00000394232.6	TSL:5 MANE Select	c.538A>C	p.Met180Leu	missense	Exon 3 of 13	ENSP00000377779.1	Q7L1I2-1
	SV2B	ENST00000330276.4	TSL:1	c.538A>C	p.Met180Leu	missense	Exon 2 of 12	ENSP00000332818.4	Q7L1I2-1
	SV2B	ENST00000557410.5	TSL:1	n.538A>C		non_coding_transcript_exon	Exon 4 of 15	ENSP00000450992.1	Q7L1I2-1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152150 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251426 AF XY: 0.00000736

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000342 AC: 5 AN: 1461884 Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4 AN XY: 727242

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53418

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000360 AC: 4 AN: 1112004

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152268 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74450

African (AFR) AF: 0.00 AC: 0 AN: 41548

American (AMR) AF: 0.00 AC: 0 AN: 15290

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.000193 AC: 1 AN: 5174

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10612

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68024

Other (OTH) AF: 0.00 AC: 0 AN: 2114

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

TwinsUK AF: 0.000270 AC: 1

ALSPAC AF: 0.00 AC: 0

ExAC AF: 0.00000824 AC: 1

Asia WGS AF: 0.000866 AC: 3 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.083
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.25
CADD	Benign	20
DANN	Benign	0.96
DEOGEN2	Benign	0.10	T
Eigen	Benign	-0.47
Eigen_PC	Benign	-0.21
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Benign	0.44	T
M_CAP	Benign	0.0086	T
MetaRNN	Benign	0.16	T
MetaSVM	Benign	-0.95	T
MutationAssessor	Benign	-0.72	N
PhyloP100		6.0
PrimateAI	Benign	0.40	T
PROVEAN	Benign	0.030	N
REVEL	Benign	0.16
Sift	Benign	0.091	T
Sift4G	Benign	0.17	T
Polyphen		0.0	B
Vest4		0.29
MutPred		0.57		Loss of catalytic residue at M180 (P = 0.0051)
MVP		0.65
MPC		0.27
ClinPred		0.46	T
GERP RS		4.2
Varity_R		0.19
gMVP		0.31
Mutation Taster		=98/2	polymorphism

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

Other links and lift over

dbSNP: rs765964793; hg19: chr15-91795135;