chr22-46308644-A-G

Position:

• chr22-46308644-A-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_016426.7(GTSE1):​c.463A>G​(p.Lys155Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,664 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: GTSE1 NM_016426.7 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.272

Genes affected

GTSE1 (HGNC:13698): (G2 and S-phase expressed 1) The protein encoded by this gene is only expressed in the S and G2 phases of the cell cycle, where it colocalizes with cytoplasmic tubulin and microtubules. In response to DNA damage, the encoded protein accumulates in the nucleus and binds the tumor suppressor protein p53, shuttling it out of the nucleus and repressing its ability to induce apoptosis. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.036097556).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GTSE1	NM_016426.7	c.463A>G	p.Lys155Glu	missense_variant	4/12	ENST00000454366.2
GTSE1	XM_047441391.1	c.463A>G	p.Lys155Glu	missense_variant	3/11
GTSE1	XM_047441392.1	c.463A>G	p.Lys155Glu	missense_variant	4/10
GTSE1	XR_007067974.1	n.546A>G		non_coding_transcript_exon_variant	4/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GTSE1	ENST00000454366.2	c.463A>G	p.Lys155Glu	missense_variant	4/12	1	NM_016426.7	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461664 Hom.: 0 Cov.: 33 AF XY: 0.00000413 AC XY: 3 AN XY: 727098

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000270

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

EpiCase AF: 0.0000545

EpiControl AF: 0.00

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

May 16, 2023

The c.463A>G (p.K155E) alteration is located in exon 4 (coding exon 3) of the GTSE1 gene. This alteration results from a A to G substitution at nucleotide position 463, causing the lysine (K) at amino acid position 155 to be replaced by a glutamic acid (E). 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
BayesDel_addAF	Benign	-0.37	T
BayesDel_noAF	Benign	-0.76
CADD	Benign	11
DANN	Benign	0.92
Eigen	Benign	-0.97
Eigen_PC	Benign	-0.97
FATHMM_MKL	Benign	0.029	N
M_CAP	Benign	0.0057	T
MetaRNN	Benign	0.036	T
MetaSVM	Benign	-0.91	T
MutationTaster	Benign	1.0	N
PrimateAI	Benign	0.30	T
PROVEAN	Benign	-0.37	N
REVEL	Benign	0.049
Sift	Benign	1.0	T
Sift4G	Benign	0.97	T
Vest4		0.045
MVP		0.014
MPC		0.22
ClinPred		0.048	T
GERP RS		-2.4
gMVP		0.097

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr22-46704541;