NM_018376.4:c.34C>T

Variant names:

• chr9-104764274-C-T
• rs774995022
• NM_018376.4:c.34C>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_018376.4(NIPSNAP3B):​c.34C>T​(p.Leu12Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000147 in 1,597,228 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000033 (0 hom., cov: 33)
  • Exomes 𝑓: 0.00016 (0 hom.)
• Consequence: NIPSNAP3B NM_018376.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.109
• Publications: 0 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: Likely_benign. The variant received -2 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.12272555).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NIPSNAP3B	NM_018376.4	c.34C>T	p.Leu12Phe	missense_variant	Exon 1 of 6	ENST00000374762.4	NP_060846.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NIPSNAP3B	ENST00000374762.4	c.34C>T	p.Leu12Phe	missense_variant	Exon 1 of 6	1	NM_018376.4	ENSP00000363894.3
NIPSNAP3B	ENST00000460936.5	n.34C>T		non_coding_transcript_exon_variant	Exon 1 of 6	5		ENSP00000435209.1
NIPSNAP3B	ENST00000461177.1	n.80C>T		non_coding_transcript_exon_variant	Exon 1 of 6	3

Frequencies

GnomAD3 genomes AF: 0.0000328 AC: 5 AN: 152224 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000241

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: 0.0000588

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000183 AC: 4 AN: 218732 AF XY: 0.00000841

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: 0.0000409

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.000159 AC: 230 AN: 1445004 Hom.: 0 Cov.: 31 AF XY: 0.000146 AC XY: 105 AN XY: 717376

African (AFR) AF: 0.0000603 AC: 2 AN: 33152

American (AMR) AF: 0.00 AC: 0 AN: 42506

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25778

East Asian (EAS) AF: 0.00 AC: 0 AN: 39006

South Asian (SAS) AF: 0.00 AC: 0 AN: 83324

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51398

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4174

European-Non Finnish (NFE) AF: 0.000204 AC: 226 AN: 1106040

Other (OTH) AF: 0.0000335 AC: 2 AN: 59626

GnomAD4 genome AF: 0.0000328 AC: 5 AN: 152224 Hom.: 0 Cov.: 33 AF XY: 0.0000403 AC XY: 3 AN XY: 74376

African (AFR) AF: 0.0000241 AC: 1 AN: 41462

American (AMR) AF: 0.00 AC: 0 AN: 15274

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5192

South Asian (SAS) AF: 0.00 AC: 0 AN: 4834

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10628

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000588 AC: 4 AN: 68042

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.000214 Hom.: 0

Bravo AF: 0.0000453

ExAC AF: 0.0000166 AC: 2

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Aug 08, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.34C>T (p.L12F) alteration is located in exon 1 (coding exon 1) of the NIPSNAP3B gene. This alteration results from a C to T substitution at nucleotide position 34, causing the leucine (L) at amino acid position 12 to be replaced by a phenylalanine (F). 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	0.071
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.29
CADD	Benign	8.9
DANN	Benign	0.91
DEOGEN2	Benign	0.013	T
Eigen	Benign	-0.77
Eigen_PC	Benign	-0.93
FATHMM_MKL	Benign	0.078	N
LIST_S2	Benign	0.77	T
M_CAP	Benign	0.017	T
MetaRNN	Benign	0.12	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.4	M
PhyloP100		-0.11
PrimateAI	Uncertain	0.56	T
PROVEAN	Benign	-1.3	N
REVEL	Benign	0.091
Sift	Benign	0.22	T
Sift4G	Benign	0.19	T
Polyphen		0.79	P
Vest4		0.24
MVP		0.38
MPC		0.032
ClinPred		0.091	T
GERP RS		1.8
PromoterAI		-0.026	Neutral
Varity_R		0.047
gMVP		0.37
Mutation Taster		=97/3	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: rs774995022; hg19: chr9-107526555; COSMIC: COSV66106847; COSMIC: COSV66106847;