NM_019026.6:c.259C>T

Variant names:

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PVS1PM2PP5

The NM_019026.6(TMCO1):c.259C>T(p.Arg87*) variant causes a stop gained change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000106 in 1,610,488 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

TMCO1
NM_019026.6 stop_gained

Scores

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 9.40

Publications

3 publications found

Variant links:

Genes affected

TMCO1 (HGNC:18188): (transmembrane and coiled-coil domains 1) This locus encodes a transmembrane protein. Mutations at this locus have been associated with craniofacial dysmorphism, skeletal anomalies, and cognitive disability. Mutations at this locus have also been associated with open angle glaucoma blindness. Alternatively spliced transcript variants have been described. [provided by RefSeq, Jan 2012]

TMCO1 Gene-Disease associations (from GenCC):

cerebrofaciothoracic dysplasia
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Laboratory for Molecular Medicine, Orphanet, PanelApp Australia, Illumina
craniofacial dysmorphism, skeletal anomalies, and impaired intellectual development 1
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P

TMCO1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 11 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 1-165752166-G-A is Pathogenic according to our data. Variant chr1-165752166-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 88739.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_019026.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
TMCO1	NM_019026.6	MANE Select	c.259C>T	p.Arg87*	stop_gained	Exon 5 of 7	NP_061899.3
TMCO1	NM_001256164.1		c.310C>T	p.Arg104*	stop_gained	Exon 5 of 7	NP_001243093.1
TMCO1	NM_001256165.1		c.223C>T	p.Arg75*	stop_gained	Exon 5 of 7	NP_001243094.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
TMCO1	ENST00000367881.11	TSL:1 MANE Select	c.259C>T	p.Arg87*	stop_gained	Exon 5 of 7	ENSP00000356856.6
TMCO1	ENST00000612311.4	TSL:1	c.412C>T	p.Arg138*	stop_gained	Exon 5 of 7	ENSP00000480514.1
TMCO1	ENST00000481278.6	TSL:3	c.223C>T	p.Arg75*	stop_gained	Exon 5 of 7	ENSP00000462300.2

Frequencies

GnomAD3 genomes

AF:

0.0000133

AC:

AN:

150206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000490

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

GnomAD2 exomes

AF:

0.0000239

AC:

AN:

251162

AF XY:

0.0000295

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000103

AC:

AN:

1460282

Hom.:

Cov.:

AF XY:

0.0000151

AC XY:

AN XY:

726510

show subpopulations

African (AFR)

AF:

0.0000598

AC:

AN:

33428

American (AMR)

AF:

0.00

AC:

AN:

44708

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26096

East Asian (EAS)

AF:

0.00

AC:

AN:

39636

South Asian (SAS)

AF:

0.00

AC:

AN:

86178

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53370

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.0000108

AC:

AN:

1110754

Other (OTH)

AF:

0.0000166

AC:

AN:

60348

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.462

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:

0.0000133

AC:

AN:

150206

Hom.:

Cov.:

AF XY:

0.0000137

AC XY:

AN XY:

73102

show subpopulations

African (AFR)

AF:

0.0000490

AC:

AN:

40856

American (AMR)

AF:

0.00

AC:

AN:

15104

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3464

East Asian (EAS)

AF:

0.00

AC:

AN:

5128

South Asian (SAS)

AF:

0.00

AC:

AN:

4782

European-Finnish (FIN)

AF:

0.00

AC:

AN:

9826

Middle Eastern (MID)

AF:

0.00

AC:

AN:

306

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67756

Other (OTH)

AF:

0.00

AC:

AN:

2074

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

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:

0.0000229

Hom.:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000412

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

Craniofacial dysmorphism, skeletal anomalies, and impaired intellectual development 1

Pathogenic:1

Feb 01, 2014

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.46

BayesDel_noAF

Pathogenic

0.65

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

Eigen

Pathogenic

1.2

Eigen_PC

Pathogenic

1.1

FATHMM_MKL

Pathogenic

0.99

PhyloP100

9.4

Vest4

0.61

GERP RS

5.9

Mutation Taster

=2/198

disease causing (ClinVar)

(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

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over