Genetic Variant NIPSNAP3B:p.Ser202Asn (chr9-104772846-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_018376.4(NIPSNAP3B):c.605G>A(p.Ser202Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,078 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. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

NIPSNAP3B
NM_018376.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.516

Publications

0 publications found

Variant links:

Genes affected

NIPSNAP3B (HGNC:23641): (nipsnap homolog 3B) NIPSNAP3B belongs to a family of proteins with putative roles in vesicular trafficking (Buechler et al., 2004 [PubMed 15177564]).[supplied by OMIM, Mar 2008]

NIPSNAP3B links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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=0.18924296).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NIPSNAP3B	NM_018376.4 link	c.605G>A	p.Ser202Asn	missense_variant	Exon 5 of 6	ENST00000374762.4	NP_060846.2	Q9BS92Q71RE8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
NIPSNAP3B	ENST00000374762.4 link	c.605G>A	p.Ser202Asn	missense_variant	Exon 5 of 6	1	NM_018376.4	ENSP00000363894.3	Q9BS92
NIPSNAP3B	ENST00000460936.5 link	n.455G>A		non_coding_transcript_exon_variant	Exon 4 of 6	5		ENSP00000435209.1	F2Z3L7
NIPSNAP3B	ENST00000461177.1 link	n.523G>A		non_coding_transcript_exon_variant	Exon 5 of 6	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000400

AC:

AN:

250126

AF XY:

0.00000740

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461078

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

726788

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33474

American (AMR)

AF:

0.0000448

AC:

AN:

44594

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26110

East Asian (EAS)

AF:

0.00

AC:

AN:

39684

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86110

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53342

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111654

Other (OTH)

AF:

0.00

AC:

AN:

60342

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 21, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.605G>A (p.S202N) alteration is located in exon 5 (coding exon 5) of the NIPSNAP3B gene. This alteration results from a G to A substitution at nucleotide position 605, causing the serine (S) at amino acid position 202 to be replaced by an asparagine (N). 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

0.086

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.58

CADD

Benign

(source)

DANN

Benign

0.92

DEOGEN2

Benign

0.0085

Eigen

Benign

-0.78

Eigen_PC

Benign

-0.77

FATHMM_MKL

Benign

0.19

LIST_S2

Benign

0.85

M_CAP

Benign

0.013

MetaRNN

Benign

0.19

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.0

PhyloP100

0.52

PrimateAI

Uncertain

0.61

PROVEAN

Benign

-1.1

REVEL

Benign

0.13

Sift

Benign

0.20

Sift4G

Benign

0.23

Polyphen

0.013

Vest4

0.19

MutPred

0.81

Gain of relative solvent accessibility (P = 0.09);

MVP

0.33

MPC

0.052

ClinPred

0.077

GERP RS

-1.1

Varity_R

0.19

gMVP

0.46

Mutation Taster

=65/35

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over