22-20036835-G-A

Variant names:

• chr22-20036835-G-A
• rs761001534
• NM_152906.7:c.37G>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_152906.7(TANGO2):​c.37G>A​(p.Val13Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,226 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. 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. V13L) has been classified as Uncertain significance.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
• Consequence: TANGO2 NM_152906.7 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.60
• Publications: 0 publications found

Genes affected

TANGO2 (HGNC:25439): (transport and golgi organization 2 homolog) This gene belongs to the transport and Golgi organization family, whose members are predicted to play roles in secretory protein loading in the endoplasmic reticulum. Depletion of this gene in Drosophila S2 cells causes fusion of the Golgi with the ER. In mouse tissue culture cells, this protein co-localizes with a mitochondrially targeted mCherry protein and displays very low levels of co-localization with Golgi and peroxisomes. Allelic variants of this gene are associated with rhabdomyolysis, metabolic crises with encephalopathy, and cardiac arrhythmia. [provided by RefSeq, Apr 2016]

TANGO2 Gene-Disease associations (from GenCC):

• recurrent metabolic encephalomyopathic crises-rhabdomyolysis-cardiac arrhythmia-intellectual disability syndrome

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), G2P
• metabolic encephalomyopathic crises, recurrent, with rhabdomyolysis, cardiac arrhythmias, and neurodegeneration

  Inheritance: AR Classification: MODERATE Submitted by: Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.222992).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_152906.7. 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
	TANGO2	NM_152906.7	MANE Select	c.37G>A	p.Val13Ile	missense	Exon 2 of 9	NP_690870.3
	TANGO2	NM_001322142.2		c.37G>A	p.Val13Ile	missense	Exon 2 of 9	NP_001309071.1
	TANGO2	NM_001283106.3		c.37G>A	p.Val13Ile	missense	Exon 3 of 10	NP_001270035.1	Q6ICL3-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TANGO2	ENST00000327374.9	TSL:1 MANE Select	c.37G>A	p.Val13Ile	missense	Exon 2 of 9	ENSP00000332721.4	Q6ICL3-1
	TANGO2	ENST00000852305.1		c.37G>A	p.Val13Ile	missense	Exon 2 of 9	ENSP00000522364.1
	TANGO2	ENST00000852310.1		c.37G>A	p.Val13Ile	missense	Exon 2 of 9	ENSP00000522369.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152226 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000192

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 31

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152226 Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1 AN XY: 74370

African (AFR) AF: 0.00 AC: 0 AN: 41464

American (AMR) AF: 0.00 AC: 0 AN: 15278

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.000192 AC: 1 AN: 5200

South Asian (SAS) AF: 0.00 AC: 0 AN: 4828

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10624

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68038

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.10
BayesDel_addAF	Benign	-0.16	T
BayesDel_noAF	Benign	-0.47
CADD	Benign	21
DANN	Uncertain	1.0
DEOGEN2	Benign	0.0068	T
Eigen	Benign	-0.029
Eigen_PC	Benign	0.054
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Uncertain	0.95	D
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.22	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.7	L
PhyloP100		6.6
PrimateAI	Benign	0.40	T
PROVEAN	Benign	-0.42	N
REVEL	Benign	0.12
Sift	Benign	0.27	T
Sift4G	Benign	0.35	T
Polyphen		0.37	B
Vest4		0.27
MutPred		0.56		Gain of catalytic residue at V13 (P = 0.0335)
MVP		0.095
MPC		0.12
ClinPred		0.65	D
GERP RS		3.1
Varity_R		0.047
Mutation Taster		=270/30	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		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: rs761001534; hg19: chr22-20024358;