rs1438493791

Variant names:

• chr17-75516870-G-A
• rs1438493791
• NM_207346.3:c.181G>A
• TSEN54 p.Glu61Lys

Variant summary

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

The NM_207346.3(TSEN54):​c.181G>A​(p.Glu61Lys) variant causes a missense change. The variant allele was found at a frequency of 0.000000708 in 1,412,162 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.1e-7 (0 hom.)
• Consequence: TSEN54 NM_207346.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.34
• Publications: 2 publications found

Genes affected

TSEN54 (HGNC:27561): (tRNA splicing endonuclease subunit 54) This gene encodes a subunit of the tRNA splicing endonuclease complex, which catalyzes the removal of introns from precursor tRNAs. The complex is also implicated in pre-mRNA 3-prime end processing. Mutations in this gene result in pontocerebellar hypoplasia type 2.[provided by RefSeq, Oct 2009]

TSEN54 Gene-Disease associations (from GenCC):

• pontocerebellar hypoplasia type 5

  Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• pontocerebellar hypoplasia type 2

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• pontocerebellar hypoplasia type 4

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

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_207346.3. 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
	TSEN54	NM_207346.3	MANE Select	c.181G>A	p.Glu61Lys	missense	Exon 2 of 11	NP_997229.2	Q7Z6J9-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TSEN54	ENST00000333213.11	TSL:1 MANE Select	c.181G>A	p.Glu61Lys	missense	Exon 2 of 11	ENSP00000327487.6	Q7Z6J9-1
	TSEN54	ENST00000680999.1		c.181G>A	p.Glu61Lys	missense	Exon 2 of 11	ENSP00000504984.1	A0A7P0Z413
	TSEN54	ENST00000915433.1		c.181G>A	p.Glu61Lys	missense	Exon 2 of 11	ENSP00000585492.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.00000593 AC: 1 AN: 168572 AF XY: 0.0000107

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000349

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 7.08e-7 AC: 1 AN: 1412162 Hom.: 0 Cov.: 51 AF XY: 0.00000143 AC XY: 1 AN XY: 699388

African (AFR) AF: 0.00 AC: 0 AN: 32176

American (AMR) AF: 0.0000249 AC: 1 AN: 40190

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25444

East Asian (EAS) AF: 0.00 AC: 0 AN: 37686

South Asian (SAS) AF: 0.00 AC: 0 AN: 82012

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 36608

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5632

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1093714

Other (OTH) AF: 0.00 AC: 0 AN: 58700

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000151

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.75
BayesDel_addAF	Uncertain	0.10	D
BayesDel_noAF	Benign	-0.090
CADD	Pathogenic	32
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.020	T
Eigen	Uncertain	0.48
Eigen_PC	Uncertain	0.46
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Benign	0.84	T
M_CAP	Pathogenic	0.94	D
MetaRNN	Uncertain	0.52	D
MetaSVM	Benign	-0.57	T
MutationAssessor	Uncertain	2.1	M
PhyloP100		6.3
PrimateAI	Pathogenic	0.91	D
PROVEAN	Benign	-1.5	N
REVEL	Benign	0.29
Sift	Benign	0.031	D
Sift4G	Uncertain	0.018	D
PromoterAI		-0.023	Neutral
Varity_R		0.65
gMVP		0.64

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs1438493791;

hg19: chr17-73512951;