NM_020921.4:c.6307A>C

Variant names:

• chr14-50723558-T-G
• rs777084348
• NM_020921.4:c.6307A>C

Variant summary

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

The NM_020921.4(NIN):​c.6307A>C​(p.Asn2103His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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. N2103D) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: NIN NM_020921.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.54
• Publications: 1 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)

ENSG00000270062 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

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.6307A>C	p.Asn2103His	missense	Exon 31 of 31	NP_065972.4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NIN	ENST00000530997.7	TSL:5 MANE Select	c.6307A>C	p.Asn2103His	missense	Exon 31 of 31	ENSP00000436092.2	Q8N4C6-7
	NIN	ENST00000914777.1		c.6307A>C	p.Asn2103His	missense	Exon 31 of 31	ENSP00000584836.1
	NIN	ENST00000872465.1		c.6217A>C	p.Asn2073His	missense	Exon 30 of 30	ENSP00000542524.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

Asia WGS AF: 0.000289 AC: 1 AN: 3468

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.62
BayesDel_addAF	Benign	-0.077	T
BayesDel_noAF	Benign	-0.35
CADD	Pathogenic	26
DANN	Uncertain	1.0
Eigen	Pathogenic	0.78
Eigen_PC	Pathogenic	0.78
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.94	D
M_CAP	Benign	0.034	D
MetaRNN	Uncertain	0.49	T
MetaSVM	Benign	-0.76	T
PhyloP100		7.5
PrimateAI	Uncertain	0.69	T
PROVEAN	Benign	-2.2	N
REVEL	Benign	0.17
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0070	D
Polyphen		1.0	D
Vest4		0.58
MutPred		0.23		Gain of catalytic residue at L2105 (P = 9e-04)
MVP		0.58
ClinPred		0.98	D
GERP RS		5.9
Mutation Taster		=72/28	polymorphism

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs777084348; hg19: chr14-51190276;