16-20736891-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 2P and 8B. PM2BP4_StrongBS1

The NM_017736.5(THUMPD1):c.1051G>A(p.Asp351Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,613,632 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 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. D351Y) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

THUMPD1
NM_017736.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.83

Publications

1 publications found

Variant links:

Genes affected

THUMPD1 (HGNC:23807): (THUMP domain containing 1) Enables RNA binding activity. Predicted to be involved in tRNA modification. Predicted to be located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

THUMPD1 links:

ACSM3 (HGNC:10522): (acyl-CoA synthetase medium chain family member 3) Enables butyrate-CoA ligase activity. Predicted to be involved in acyl-CoA metabolic process and fatty acid biosynthetic process. Located in mitochondrion. Implicated in IgA glomerulonephritis. Biomarker of ulcerative colitis. [provided by Alliance of Genome Resources, Apr 2022]

ACSM3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.05519241).

BS1

Variant frequency is greater than expected in population amr. GnomAdExome4 allele frequency = 0.00000547 (8/1461428) while in subpopulation AMR AF = 0.000179 (8/44666). AF 95% confidence interval is 0.0000887. There are 0 homozygotes in GnomAdExome4. There are 4 alleles in the male GnomAdExome4 subpopulation. Median coverage is 30. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017736.5. 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
	THUMPD1	NM_017736.5	MANE Select	c.1051G>A	p.Asp351Asn	missense	Exon 4 of 4	NP_060206.2
	THUMPD1	NM_001304550.2		c.1051G>A	p.Asp351Asn	missense	Exon 4 of 5	NP_001291479.1	Q9NXG2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
THUMPD1	ENST00000396083.7	TSL:1 MANE Select	c.1051G>A	p.Asp351Asn	missense	Exon 4 of 4	ENSP00000379392.2	Q9NXG2
THUMPD1	ENST00000381337.6	TSL:1	c.1051G>A	p.Asp351Asn	missense	Exon 4 of 5	ENSP00000370741.2	Q9NXG2
THUMPD1	ENST00000888379.1		c.1051G>A	p.Asp351Asn	missense	Exon 4 of 5	ENSP00000558438.1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152204

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000358

AC:

AN:

251114

AF XY:

0.0000295

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000261

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:

0.00000547

AC:

AN:

1461428

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

726954

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33448

American (AMR)

AF:

0.000179

AC:

AN:

44666

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26122

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.00

AC:

AN:

86206

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111738

Other (OTH)

AF:

0.00

AC:

AN:

60378

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.544

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

AF:

0.00000657

AC:

AN:

152204

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74352

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

41458

American (AMR)

AF:

0.0000654

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5200

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68038

Other (OTH)

AF:

0.00

AC:

AN:

2092

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.0000330

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.074

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.61

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.014

Eigen

Benign

0.022

Eigen_PC

Benign

0.17

FATHMM_MKL

Uncertain

0.87

LIST_S2

Benign

0.36

M_CAP

Benign

0.0096

MetaRNN

Benign

0.055

MetaSVM

Benign

-0.91

MutationAssessor

Uncertain

2.2

PhyloP100

1.8

PrimateAI

Benign

0.36

PROVEAN

Benign

-0.52

REVEL

Benign

0.13

Sift

Uncertain

0.028

Sift4G

Uncertain

0.022

Polyphen

0.079

Vest4

0.24

MutPred

0.092

Gain of glycosylation at S353 (P = 0.1386)

MVP

0.70

MPC

0.20

ClinPred

0.20

GERP RS

5.9

Varity_R

0.074

gMVP

0.099

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.12

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over