Genetic Variant TSPAN14:p.Phe184Cys (chr10-80512244-T-G) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_030927.4(TSPAN14):c.551T>G(p.Phe184Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,206 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a damaging 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. F184Y) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Consequence

TSPAN14
NM_030927.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.92

Publications

1 publications found

Variant links:

Genes affected

TSPAN14 (HGNC:23303): (tetraspanin 14) Enables enzyme binding activity. Involved in positive regulation of Notch signaling pathway; protein localization to plasma membrane; and protein maturation. Located in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

TSPAN14 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.896

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_030927.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TSPAN14	NM_030927.4	MANE Select	c.551T>G	p.Phe184Cys	missense	Exon 6 of 9	NP_112189.2	Q8NG11-1
TSPAN14	NM_001351266.2		c.551T>G	p.Phe184Cys	missense	Exon 7 of 10	NP_001338195.1	Q8NG11-1
TSPAN14	NM_001351267.4		c.551T>G	p.Phe184Cys	missense	Exon 8 of 11	NP_001338196.1	Q8NG11-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TSPAN14	ENST00000429989.8	TSL:1 MANE Select	c.551T>G	p.Phe184Cys	missense	Exon 6 of 9	ENSP00000396270.2	Q8NG11-1
TSPAN14	ENST00000372164.7	TSL:1	c.500T>G	p.Phe167Cys	missense	Exon 5 of 8	ENSP00000361237.3	Q8NG11-2
TSPAN14	ENST00000714439.1		c.593T>G	p.Phe198Cys	missense	Exon 8 of 11	ENSP00000519708.1	A0AAQ5BI32

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152206

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74366

show subpopulations

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

African (AFR)

AF:

0.0000241

AC:

AN:

41450

American (AMR)

AF:

0.00

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

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:

2088

⚠️ 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.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.98

BayesDel_addAF

Pathogenic

0.47

BayesDel_noAF

Pathogenic

0.43

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.43

Eigen

Pathogenic

0.73

Eigen_PC

Uncertain

0.66

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Pathogenic

0.99

M_CAP

Pathogenic

0.37

MetaRNN

Pathogenic

0.90

MetaSVM

Uncertain

0.70

MutationAssessor

Pathogenic

3.2

PhyloP100

7.9

PrimateAI

Pathogenic

0.86

PROVEAN

Pathogenic

-7.3

REVEL

Pathogenic

0.89

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.0020

Polyphen

1.0

Vest4

0.88

MutPred

0.59

Gain of catalytic residue at P183 (P = 0.0037)

MVP

0.95

MPC

2.2

ClinPred

1.0

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.86

gMVP

0.92

Mutation Taster

=21/79

disease causing

(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

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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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over