rs200480185

Variant names:

• chr19-3982033-C-A
• rs200480185
• NM_001961.4:c.811G>T

Your query was ambiguous. Multiple possible variants found:

• chr19-3982033-C-A
• chr19-3982033-C-T

Variant summary

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

The NM_001961.4(EEF2):​c.811G>T​(p.Gly271Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,800 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. G271S) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: EEF2 NM_001961.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.99
• Publications: 0 publications found

Genes affected

EEF2 (HGNC:3214): (eukaryotic translation elongation factor 2) This gene encodes a member of the GTP-binding translation elongation factor family. This protein is an essential factor for protein synthesis. It promotes the GTP-dependent translocation of the nascent protein chain from the A-site to the P-site of the ribosome. This protein is completely inactivated by EF-2 kinase phosporylation. [provided by RefSeq, Jul 2008]

EEF2 Gene-Disease associations (from GenCC):

• spinocerebellar ataxia type 26

  Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
• neurodevelopmental disorder

  Inheritance: AD Classification: MODERATE, LIMITED Submitted by: G2P, Ambry Genetics

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_001961.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EEF2	NM_001961.4	MANE Select	c.811G>T	p.Gly271Cys	missense	Exon 6 of 15	NP_001952.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EEF2	ENST00000309311.7	TSL:5 MANE Select	c.811G>T	p.Gly271Cys	missense	Exon 6 of 15	ENSP00000307940.5
	EEF2	ENST00000598182.5	TSL:2	n.88G>T		non_coding_transcript_exon	Exon 2 of 4
	EEF2	ENST00000598436.1	TSL:2	n.309G>T		non_coding_transcript_exon	Exon 2 of 4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461800 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 727204

⚠️ 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: 33480

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

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

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

South Asian (SAS) AF: 0.00 AC: 0 AN: 86234

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

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111978

Other (OTH) AF: 0.0000166 AC: 1 AN: 60390

⚠️ 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.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.67
BayesDel_addAF	Uncertain	0.075	D
BayesDel_noAF	Benign	-0.13
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.37	T
Eigen	Pathogenic	0.71
Eigen_PC	Pathogenic	0.70
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Benign	0.012	T
MetaRNN	Uncertain	0.72	D
MetaSVM	Benign	-0.86	T
MutationAssessor	Benign	1.9	L
PhyloP100		5.0
PrimateAI	Uncertain	0.77	T
PROVEAN	Benign	-1.8	N
REVEL	Benign	0.25
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.0070	D
Polyphen		1.0	D
Vest4		0.78
MutPred		0.55		Gain of sheet (P = 0.0221)
MVP		0.50
ClinPred		0.92	D
GERP RS		6.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.3
Varity_R		0.77
gMVP		0.78
Mutation Taster		=52/48	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: rs200480185; hg19: chr19-3982031;