chr14-50758536-C-A

Variant names:

• chr14-50758536-C-A
• rs370154746
• NM_020921.4:c.2494G>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_020921.4(NIN):​c.2494G>T​(p.Ala832Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,686 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. 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. A832G) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: NIN NM_020921.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.118
• Publications: 2 publications found

Genes affected

NIN (HGNC:14906): (ninein) This gene encodes one of the proteins important for centrosomal function. This protein is important for positioning and anchoring the microtubules minus-ends in epithelial cells. Localization of this protein to the centrosome requires three leucine zippers in the central coiled-coil domain. Multiple alternatively spliced transcript variants that encode different isoforms have been reported. [provided by RefSeq, Jul 2008]

NIN Gene-Disease associations (from GenCC):

• Seckel syndrome 7

  Inheritance: AR, Unknown Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.05731532).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020921.4. 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
	NIN	NM_020921.4	MANE Select	c.2494G>T	p.Ala832Ser	missense	Exon 18 of 31	NP_065972.4
	NIN	NM_182946.2		c.2494G>T	p.Ala832Ser	missense	Exon 18 of 30	NP_891991.2	Q8N4C6-1
	NIN	NM_182944.3		c.2494G>T	p.Ala832Ser	missense	Exon 18 of 30	NP_891989.3	C9J066

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NIN	ENST00000530997.7	TSL:5 MANE Select	c.2494G>T	p.Ala832Ser	missense	Exon 18 of 31	ENSP00000436092.2	Q8N4C6-7
	NIN	ENST00000382041.7	TSL:1	c.2494G>T	p.Ala832Ser	missense	Exon 18 of 30	ENSP00000371472.3	Q8N4C6-1
	NIN	ENST00000382043.8	TSL:1	c.2399+1321G>T		intron	N/A	ENSP00000371474.4	Q8N4C6-11

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251016 AF XY: 0.00000737

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: 0.00000882

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461686 Hom.: 0 Cov.: 34 AF XY: 0.00000138 AC XY: 1 AN XY: 727140

African (AFR) AF: 0.00 AC: 0 AN: 33462

American (AMR) AF: 0.00 AC: 0 AN: 44682

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26130

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86230

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53402

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111930

Other (OTH) AF: 0.00 AC: 0 AN: 60386

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.085
BayesDel_addAF	Benign	-0.28	T
BayesDel_noAF	Benign	-0.63
CADD	Benign	2.3
DANN	Benign	0.91
DEOGEN2	Benign	0.021	T
Eigen	Benign	-0.59
Eigen_PC	Benign	-0.70
FATHMM_MKL	Benign	0.11	N
LIST_S2	Uncertain	0.94	D
M_CAP	Benign	0.016	T
MetaRNN	Benign	0.057	T
MetaSVM	Benign	-0.99	T
MutationAssessor	Uncertain	2.3	M
PhyloP100		-0.12
PrimateAI	Benign	0.29	T
PROVEAN	Benign	-0.35	N
REVEL	Benign	0.023
Sift	Benign	0.038	D
Sift4G	Benign	0.47	T
Polyphen		0.11	B
Vest4		0.10
MutPred		0.10		Gain of phosphorylation at A832 (P = 0.0438)
MVP		0.23
MPC		0.32
ClinPred		0.10	T
GERP RS		0.24
Varity_R		0.027
gMVP		0.020
Mutation Taster		=95/5	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: rs370154746; hg19: chr14-51225254;