Genetic Variant TMPO:p.Val437Met (chr12-98533566-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_003276.2(TMPO):c.1309G>A(p.Val437Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,876 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 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. V437L) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TMPO
NM_003276.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.31

Publications

0 publications found

Variant links:

Genes affected

TMPO (HGNC:11875): (thymopoietin) Through alternative splicing, this gene encodes several distinct LEM domain containing protein isoforms. LEM domain proteins include inner nuclear membrane and intranuclear proteins, and are involved in a variety of cellular functions including gene expression, chromatin organization, and replication and cell cycle control. The encoded alpha isoform is broadly diffuse in the nucleus and contains a lamin binding domain, while the beta and gamma isoforms are localized to the nuclear membrane and contain an HDAC3 interaction domain. The distinct isoforms may compete with each other when acting to chaperone other proteins and regulate transcription. [provided by RefSeq, Aug 2019]

TMPO Gene-Disease associations (from GenCC):

familial isolated dilated cardiomyopathy
Inheritance: Unknown, AD Classification: SUPPORTIVE, NO_KNOWN Submitted by: ClinGen, Orphanet
hypertrophic cardiomyopathy
Inheritance: AD Classification: LIMITED Submitted by: ClinGen
dilated cardiomyopathy
Inheritance: AD Classification: NO_KNOWN Submitted by: Ambry Genetics

TMPO links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.0632824).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003276.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TMPO	NM_001032283.3	MANE Select	c.565+1728G>A		intron	N/A	NP_001027454.1	P42167-1
TMPO	NM_003276.2		c.1309G>A	p.Val437Met	missense	Exon 4 of 4	NP_003267.1	P42166-1
TMPO	NM_001307975.2		c.565+1728G>A		intron	N/A	NP_001294904.1	G5E972

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TMPO	ENST00000266732.8	TSL:1	c.1309G>A	p.Val437Met	missense	Exon 4 of 4	ENSP00000266732.4	P42166-1
TMPO	ENST00000556029.6	TSL:1 MANE Select	c.565+1728G>A		intron	N/A	ENSP00000450627.1	P42167-1
TMPO	ENST00000393053.6	TSL:1	c.565+1728G>A		intron	N/A	ENSP00000376773.2	P42167-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461876

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727238

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112000

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.093

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.60

CADD

Benign

(source)

DANN

Benign

0.51

DEOGEN2

Benign

0.13

Eigen

Benign

-0.76

Eigen_PC

Benign

-0.70

FATHMM_MKL

Benign

0.14

LIST_S2

Benign

0.64

M_CAP

Benign

0.0051

MetaRNN

Benign

0.063

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.55

PhyloP100

1.3

PrimateAI

Benign

0.34

PROVEAN

Benign

0.040

REVEL

Benign

0.051

Sift

Uncertain

0.0040

Sift4G

Benign

0.22

Polyphen

0.019

Vest4

0.058

MutPred

0.14

Gain of catalytic residue at R440 (P = 0.1128)

MVP

0.11

MPC

0.093

ClinPred

0.10

GERP RS

3.6

Varity_R

0.045

gMVP

0.11

Mutation Taster

=98/2

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over