NM_018376.4:c.305C>G

Variant names:

• chr9-104768896-C-G
• rs781242867
• NM_018376.4:c.305C>G

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_018376.4(NIPSNAP3B):​c.305C>G​(p.Ala102Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/22 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 variant affecting the same amino acid position, but resulting in a different missense (i.e. A102D) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: NIPSNAP3B NM_018376.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.53
• Publications: 3 publications found

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]

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.29401934).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NIPSNAP3B	NM_018376.4	c.305C>G	p.Ala102Gly	missense_variant	Exon 3 of 6	ENST00000374762.4	NP_060846.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NIPSNAP3B	ENST00000374762.4	c.305C>G	p.Ala102Gly	missense_variant	Exon 3 of 6	1	NM_018376.4	ENSP00000363894.3
NIPSNAP3B	ENST00000460936.5	n.305C>G		non_coding_transcript_exon_variant	Exon 3 of 6	5		ENSP00000435209.1
NIPSNAP3B	ENST00000461177.1	n.140C>G		non_coding_transcript_exon_variant	Exon 2 of 6	3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	-0.15	T
BayesDel_noAF	Benign	-0.46
CADD	Benign	21
DANN	Benign	0.97
DEOGEN2	Benign	0.047	T
Eigen	Benign	-0.25
Eigen_PC	Benign	-0.46
FATHMM_MKL	Benign	0.53	D
LIST_S2	Benign	0.73	T
M_CAP	Benign	0.017	T
MetaRNN	Benign	0.29	T
MetaSVM	Uncertain	-0.21	T
MutationAssessor	Uncertain	2.6	M
PhyloP100		2.5
PrimateAI	Benign	0.38	T
PROVEAN	Uncertain	-3.0	D
REVEL	Uncertain	0.32
Sift	Uncertain	0.0090	D
Sift4G	Uncertain	0.018	D
Polyphen		0.99	D
Vest4		0.16
MutPred		0.54		Loss of stability (P = 0.0687);
MVP		0.50
MPC		0.068
ClinPred		0.89	D
GERP RS		-0.60
Varity_R		0.54
gMVP		0.54
Mutation Taster		=94/6	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: rs781242867; hg19: chr9-107531177;