chr19-49061469-C-A

Variant names:

• chr19-49061469-C-A
• rs776012757
• NM_006179.5:c.529G>T

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_006179.5(NTF4):​c.529G>T​(p.Val177Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,672 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: NTF4 NM_006179.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.79
• Publications: 0 publications found

Genes affected

NTF4 (HGNC:8024): (neurotrophin 4) This gene is a member of a family of neurotrophic factors, neurotrophins, that control survival and differentiation of mammalian neurons. The expression of this gene is ubiquitous and less influenced by environmental signals. While knock-outs of other neurotrophins including nerve growth factor, brain-derived neurotrophic factor, and neurotrophin 3 prove lethal during early postnatal development, NTF5-deficient mice only show minor cellular deficits and develop normally to adulthood. [provided by RefSeq, Jul 2008]

NTF4 Gene-Disease associations (from GenCC):

• glaucoma 1, open angle, O

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ENSG00000283663 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.937

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006179.5. 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
	NTF4	NM_006179.5	MANE Select	c.529G>T	p.Val177Leu	missense	Exon 2 of 2	NP_006170.1	P34130
	NTF4	NM_001395489.1		c.529G>T	p.Val177Leu	missense	Exon 3 of 3	NP_001382418.1	P34130

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NTF4	ENST00000593537.2	TSL:6 MANE Select	c.529G>T	p.Val177Leu	missense	Exon 2 of 2	ENSP00000469455.1	P34130
	ENSG00000283663	ENST00000599795.5	TSL:2	n.243+286G>T		intron	N/A	ENSP00000470689.1	M0QZQ0
	NTF4	ENST00000594938.2	TSL:5	c.529G>T	p.Val177Leu	missense	Exon 3 of 3	ENSP00000512387.1	P34130

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.0000120 AC: 3 AN: 250804 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: 0.0000265

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461672 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727106

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44722

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

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39696

South Asian (SAS) AF: 0.00 AC: 0 AN: 86252

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53352

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111884

Other (OTH) AF: 0.00 AC: 0 AN: 60390

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.00400497), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ExAC AF: 0.0000165 AC: 2

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Uncertain	0.10	D
BayesDel_noAF	Uncertain	-0.030
CADD	Uncertain	26
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.57	D
Eigen	Uncertain	0.56
Eigen_PC	Uncertain	0.43
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.95	D
M_CAP	Uncertain	0.11	D
MetaRNN	Pathogenic	0.94	D
MetaSVM	Uncertain	0.15	D
MutationAssessor	Uncertain	2.8	M
PhyloP100		4.8
PrimateAI	Pathogenic	0.85	D
Sift4G	Uncertain	0.0050	D
Polyphen		1.0	D
Vest4		0.69
MutPred		0.87		Loss of catalytic residue at V177 (P = 0.0951)
MVP		0.87
ClinPred		0.95	D
GERP RS		3.3
Varity_R		0.48
gMVP		0.69
Mutation Taster		=13/87	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		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: rs776012757; hg19: chr19-49564726;