2-201380869-G-T

Position:

• chr2-201380869-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_015049.3(TRAK2):​c.2419C>A​(p.Pro807Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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)
• Consequence: TRAK2 NM_015049.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 9.76

Genes affected

TRAK2 (HGNC:13206): (trafficking kinesin protein 2) Predicted to enable GABA receptor binding activity and myosin binding activity. Predicted to be involved in several processes, including mitochondrion distribution; organelle transport along microtubule; and protein targeting. Predicted to be located in cytoplasm and plasma membrane. Predicted to be active in cytoplasmic vesicle; dendrite; and mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.82

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TRAK2	NM_015049.3	c.2419C>A	p.Pro807Thr	missense_variant	16/16	ENST00000332624.8	NP_055864.2
TRAK2	XM_047445578.1	c.2419C>A	p.Pro807Thr	missense_variant	16/16		XP_047301534.1
TRAK2	XM_047445579.1	c.1786C>A	p.Pro596Thr	missense_variant	13/13		XP_047301535.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TRAK2	ENST00000332624.8	c.2419C>A	p.Pro807Thr	missense_variant	16/16	1	NM_015049.3	ENSP00000328875	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 38

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 03, 2021

The c.2419C>A (p.P807T) alteration is located in exon 16 (coding exon 15) of the TRAK2 gene. This alteration results from a C to A substitution at nucleotide position 2419, causing the proline (P) at amino acid position 807 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.58
BayesDel_addAF	Pathogenic	0.32	D
BayesDel_noAF	Pathogenic	0.23
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.31	T
Eigen	Pathogenic	0.92
Eigen_PC	Pathogenic	0.93
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Uncertain	0.96	D
M_CAP	Benign	0.025	T
MetaRNN	Pathogenic	0.82	D
MetaSVM	Benign	-0.51	T
MutationAssessor	Uncertain	2.8	M
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.75	T
PROVEAN	Pathogenic	-4.4	D
REVEL	Uncertain	0.45
Sift	Uncertain	0.0040	D
Sift4G	Uncertain	0.0080	D
Polyphen		1.0	D
Vest4		0.77
MutPred		0.53		Gain of phosphorylation at P807 (P = 0.0417);
MVP		0.82
MPC		0.59
ClinPred		1.0	D
GERP RS		6.0
Varity_R		0.44
gMVP		0.62

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs1951336354; hg19: chr2-202245592;