NM_006331.8:c.702C>T

Variant names:

• chr12-6975776-C-T
• rs782208139
• NM_006331.8:c.702C>T

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_006331.8(EMG1):​c.702C>T​(p.Thr234Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000548 in 1,460,424 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. T234T) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000055 (0 hom.)
• Consequence: EMG1 NM_006331.8 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.629
• Publications: 1 publications found

Genes affected

EMG1 (HGNC:16912): (EMG1 N1-specific pseudouridine methyltransferase) This gene encodes an essential, conserved eukaryotic protein that methylates pseudouridine in 18S rRNA. The related protein in yeast is a component of the small subunit processome and is essential for biogenesis of the ribosomal 40S subunit. A mutation in this gene has been associated with Bowen-Conradi syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]

EMG1 Gene-Disease associations (from GenCC):

• Bowen-Conradi syndrome

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: ClinGen, G2P, Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)

ENSG00000290146 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.35).
• BP7: Synonymous conserved (PhyloP=0.629 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006331.8. 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
	EMG1	NM_006331.8	MANE Select	c.702C>T	p.Thr234Thr	synonymous	Exon 6 of 6	NP_006322.4
	EMG1	NM_001320049.2		c.552C>T	p.Thr184Thr	synonymous	Exon 5 of 5	NP_001306978.1
	EMG1	NR_135131.2		n.632+398C>T		intron	N/A

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EMG1	ENST00000599672.6	TSL:1 MANE Select	c.702C>T	p.Thr234Thr	synonymous	Exon 6 of 6	ENSP00000470560.1	Q92979
	ENSG00000290146	ENST00000607161.5	TSL:2	n.624+398C>T		intron	N/A	ENSP00000480420.1	A0A087WWQ2
	EMG1	ENST00000960685.1		c.816C>T	p.Thr272Thr	synonymous	Exon 7 of 7	ENSP00000630744.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.00000802 AC: 2 AN: 249228 AF XY: 0.00000740

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: 0.0000177

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000548 AC: 8 AN: 1460424 Hom.: 0 Cov.: 30 AF XY: 0.00000413 AC XY: 3 AN XY: 726594

African (AFR) AF: 0.00 AC: 0 AN: 33454

American (AMR) AF: 0.0000224 AC: 1 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39696

South Asian (SAS) AF: 0.00 AC: 0 AN: 86218

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

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5746

European-Non Finnish (NFE) AF: 0.00000630 AC: 7 AN: 1110730

Other (OTH) AF: 0.00 AC: 0 AN: 60324

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

EpiCase AF: 0.00

EpiControl AF: 0.0000593

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.35
CADD	Benign	11
DANN	Benign	0.85
PhyloP100		0.63
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Mutation Taster		=100/0	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: rs782208139; hg19: chr12-7084938;