chr1-235380161-TTGTGTGTGTGTGTGTGTGTGTGTGTGTG-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP6_ModerateBS1BS2

The NM_003193.5(TBCE):c.100+38_100+65delGTGTGTGTGTGTGTGTGTGTGTGTGTGT variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000255 in 1,138,738 control chromosomes in the GnomAD database, including 2 homozygotes. It is difficult to determine the true allele frequency of this variant because it is of type DEL_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 0)

Exomes 𝑓: 0.00027 ( 2 hom. )

Consequence

TBCE
NM_003193.5 intron

Scores

Not classified

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.667

Publications

1 publications found

Variant links:

Genes affected

TBCE (HGNC:11582): (tubulin folding cofactor E) Cofactor E is one of four proteins (cofactors A, D, E, and C) involved in the pathway leading to correctly folded beta-tubulin from folding intermediates. Cofactors A and D are believed to play a role in capturing and stabilizing beta-tubulin intermediates in a quasi-native confirmation. Cofactor E binds to the cofactor D/beta-tubulin complex; interaction with cofactor C then causes the release of beta-tubulin polypeptides that are committed to the native state. Two transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jul 2008]

TBCE Gene-Disease associations (from GenCC):

hypoparathyroidism-retardation-dysmorphism syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet
early-onset progressive diffuse brain atrophy-microcephaly-muscle weakness-optic atrophy syndrome
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
encephalopathy, progressive, with amyotrophy and optic atrophy
Inheritance: AR Classification: STRONG, LIMITED Submitted by: Ambry Genetics, G2P
autosomal recessive Kenny-Caffey syndrome
Inheritance: AR Classification: MODERATE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics

TBCE links:

ENSG00000285053 (HGNC:):

ENSG00000285053 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP6

Variant 1-235380161-TTGTGTGTGTGTGTGTGTGTGTGTGTGTG-T is Benign according to our data. Variant chr1-235380161-TTGTGTGTGTGTGTGTGTGTGTGTGTGTG-T is described in ClinVar as Likely_benign. ClinVar VariationId is 1610650.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.00027 (270/998894) while in subpopulation MID AF = 0.00177 (8/4514). AF 95% confidence interval is 0.000881. There are 2 homozygotes in GnomAdExome4. There are 152 alleles in the male GnomAdExome4 subpopulation. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	Exon rank	MANE	Protein	UniProt
TBCE	NM_003193.5 link	c.100+38_100+65delGTGTGTGTGTGTGTGTGTGTGTGTGTGT	intron_variant	Intron 2 of 16	ENST00000642610.2	NP_003184.1	Q15813-1
TBCE	NM_001287801.2 link	c.100+38_100+65delGTGTGTGTGTGTGTGTGTGTGTGTGTGT	intron_variant	Intron 2 of 17		NP_001274730.1	Q15813-2
TBCE	NM_001079515.3 link	c.100+38_100+65delGTGTGTGTGTGTGTGTGTGTGTGTGTGT	intron_variant	Intron 2 of 16		NP_001072983.1
TBCE	NM_001287802.2 link	c.-211+38_-211+65delGTGTGTGTGTGTGTGTGTGTGTGTGTGT	intron_variant	Intron 2 of 15		NP_001274731.1	Q15813A0A2R8Y6Q1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TBCE	ENST00000642610.2 link	c.100+13_100+40delTGTGTGTGTGTGTGTGTGTGTGTGTGTG		intron_variant	Intron 2 of 16		NM_003193.5	ENSP00000494796.1		Q15813-1
ENSG00000285053	ENST00000647186.1 link	c.100+13_100+40delTGTGTGTGTGTGTGTGTGTGTGTGTGTG		intron_variant	Intron 4 of 18			ENSP00000494775.1		Q15813-1

Frequencies

GnomAD3 genomes

AF:

0.000143

AC:

AN:

139844

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000105

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000740

Gnomad ASJ

AF:

0.000302

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000201

Gnomad OTH

AF:

0.000531

GnomAD4 exome

AF:

0.000270

AC:

270

AN:

998894

Hom.:

AF XY:

0.000297

AC XY:

152

AN XY:

512066

show subpopulations

African (AFR)

AF:

0.000715

AC:

AN:

25162

American (AMR)

AF:

0.000192

AC:

AN:

41600

Ashkenazi Jewish (ASJ)

AF:

0.000284

AC:

AN:

21144

East Asian (EAS)

AF:

0.0000294

AC:

AN:

34036

South Asian (SAS)

AF:

0.000668

AC:

AN:

74838

European-Finnish (FIN)

AF:

0.0000215

AC:

AN:

46516

Middle Eastern (MID)

AF:

0.00177

AC:

AN:

4514

European-Non Finnish (NFE)

AF:

0.000239

AC:

169

AN:

707714

Other (OTH)

AF:

0.000208

AC:

AN:

43370

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.512

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

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:

0.000143

AC:

AN:

139844

Hom.:

Cov.:

AF XY:

0.000179

AC XY:

AN XY:

67006

show subpopulations

African (AFR)

AF:

0.000105

AC:

AN:

38248

American (AMR)

AF:

0.0000740

AC:

AN:

13508

Ashkenazi Jewish (ASJ)

AF:

0.000302

AC:

AN:

3314

East Asian (EAS)

AF:

0.00

AC:

AN:

4758

South Asian (SAS)

AF:

0.00

AC:

AN:

4090

European-Finnish (FIN)

AF:

0.00

AC:

AN:

8350

Middle Eastern (MID)

AF:

0.00

AC:

AN:

300

European-Non Finnish (NFE)

AF:

0.000201

AC:

AN:

64516

Other (OTH)

AF:

0.000531

AC:

AN:

1882

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.555

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.:

546

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Aug 10, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

0.67

Mutation Taster

=99/1

polymorphism

(source)

Splicing

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over