chr6-81749946-C-T

Position:

• chr6-81749946-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_017633.3(TENT5A):​c.1078G>A​(p.Gly360Arg) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,826 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: TENT5A NM_017633.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.82

Genes affected

TENT5A (HGNC:18345): (terminal nucleotidyltransferase 5A) Enables RNA binding activity. Predicted to be involved in mRNA stabilization. Predicted to act upstream of or within response to bacterium. Implicated in lung non-small cell carcinoma; osteoarthritis; and osteogenesis imperfecta type 18. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.25526446).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TENT5A	NM_017633.3	c.1078G>A	p.Gly360Arg	missense_variant	3/3	ENST00000320172.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TENT5A	ENST00000320172.11	c.1078G>A	p.Gly360Arg	missense_variant	3/3	1	NM_017633.3	A2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461826 Hom.: 0 Cov.: 35 AF XY: 0.00 AC XY: 0 AN XY: 727212

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

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

Aug 14, 2023

The c.1078G>A (p.G360R) alteration is located in exon 3 (coding exon 2) of the FAM46A gene. This alteration results from a G to A substitution at nucleotide position 1078, causing the glycine (G) at amino acid position 360 to be replaced by an arginine (R). 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	Benign	0.25
BayesDel_addAF	Benign	-0.19	T
BayesDel_noAF	Benign	-0.51
CADD	Benign	22
DANN	Benign	0.57
DEOGEN2	Benign	0.0035	.;T;.
Eigen	Benign	-0.67
Eigen_PC	Benign	-0.38
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Uncertain	0.88	D;D;D
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.26	T;T;T
MetaSVM	Benign	-0.97	T
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Pathogenic	0.93	D
PROVEAN	Benign	1.6	N;N;N
REVEL	Benign	0.12
Sift	Benign	0.98	T;T;T
Sift4G	Benign	0.84	T;T;T
Polyphen		0.0060	B;B;.
Vest4		0.62
MutPred		0.53		.;Loss of catalytic residue at V361 (P = 0.0166);.;
MVP		0.23
MPC		1.1
ClinPred		0.48	T
GERP RS		5.3
Varity_R		0.16
gMVP		0.72

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs1768997289; hg19: chr6-82459663;