14-49786729-G-A

Variant names:

• chr14-49786729-G-A
• rs912199190
• NM_004713.6:c.2917C>T

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1 PM2

The NM_004713.6(NEMF):​c.2917C>T​(p.Gln973*) variant causes a stop gained change. The variant allele was found at a frequency of 0.000000685 in 1,460,916 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Variant results in nonsense mediated mRNA decay.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: NEMF NM_004713.6 stop_gained
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.12
• Publications: 0 publications found

Genes affected

NEMF (HGNC:10663): (nuclear export mediator factor) This gene encodes a component of the ribosome quality control complex. The encoded protein facilitates the recognition and ubiquitination of stalled 60S subunits by the ubiquitin ligase listerin. A similar protein in fly functions as a tumor suppressor. [provided by RefSeq, Jul 2016]

NEMF Gene-Disease associations (from GenCC):

• intellectual developmental disorder with speech delay and axonal peripheral neuropathy

  Inheritance: AR Classification: STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Pathogenic. The variant received 10 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004713.6. 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
	NEMF	NM_004713.6	MANE Select	c.2917C>T	p.Gln973*	stop_gained	Exon 29 of 33	NP_004704.3
	NEMF	NM_001301732.3		c.2854C>T	p.Gln952*	stop_gained	Exon 28 of 32	NP_001288661.2	O60524-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NEMF	ENST00000298310.10	TSL:5 MANE Select	c.2917C>T	p.Gln973*	stop_gained	Exon 29 of 33	ENSP00000298310.5	O60524-1
	NEMF	ENST00000556074.5	TSL:1	n.1741C>T		non_coding_transcript_exon	Exon 8 of 10
	NEMF	ENST00000925604.1		c.2914C>T	p.Gln972*	stop_gained	Exon 29 of 33	ENSP00000595663.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460916 Hom.: 0 Cov.: 29 AF XY: 0.00 AC XY: 0 AN XY: 726830

⚠️ 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: 33460

American (AMR) AF: 0.00 AC: 0 AN: 44696

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26122

East Asian (EAS) AF: 0.00 AC: 0 AN: 39674

South Asian (SAS) AF: 0.00 AC: 0 AN: 86222

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53330

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 9.00e-7 AC: 1 AN: 1111290

Other (OTH) AF: 0.00 AC: 0 AN: 60356

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.60	D
BayesDel_noAF	Pathogenic	0.62
CADD	Pathogenic	49
DANN	Uncertain	1.0
Eigen	Pathogenic	0.95
Eigen_PC	Pathogenic	0.83
FATHMM_MKL	Pathogenic	0.99	D
PhyloP100		6.1
Vest4		0.25
GERP RS		5.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Mutation Taster		=6/194	disease causing (fs/PTC)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.14		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: rs912199190; hg19: chr14-50253447;