Genetic Variant NM_001396959.1:c.94C>T (chr4-37902189-C-T) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001396959.1(TBC1D1):c.94C>T(p.His32Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,888 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 Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

TBC1D1
NM_001396959.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.26

Variant links:

Genes affected

TBC1D1 (HGNC:11578): (TBC1 domain family member 1) TBC1D1 is the founding member of a family of proteins sharing a 180- to 200-amino acid TBC domain presumed to have a role in regulating cell growth and differentiation. These proteins share significant homology with TRE2 (USP6; MIM 604334), yeast Bub2, and CDC16 (MIM 603461) (White et al., 2000 [PubMed 10965142]).[supplied by OMIM, Mar 2008]

TBC1D1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.808

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TBC1D1	NM_001396959.1 link	c.94C>T	p.His32Tyr	missense_variant	Exon 2 of 22	ENST00000698857.1	NP_001383888.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TBC1D1	ENST00000698857.1 link	c.94C>T	p.His32Tyr	missense_variant	Exon 2 of 22		NM_001396959.1	ENSP00000513987.1	A0A8V8TNS9
TBC1D1	ENST00000261439.9 link	c.94C>T	p.His32Tyr	missense_variant	Exon 2 of 20	1		ENSP00000261439.4	Q86TI0-1
TBC1D1	ENST00000508802.5 link	c.94C>T	p.His32Tyr	missense_variant	Exon 2 of 21	2		ENSP00000423651.1	Q86TI0-2
TBC1D1	ENST00000402522.1 link	c.94C>T	p.His32Tyr	missense_variant	Exon 2 of 3	2		ENSP00000383994.1	B5MCJ2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461888

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727248

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Jul 12, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.94C>T (p.H32Y) alteration is located in exon 2 (coding exon 1) of the TBC1D1 gene. This alteration results from a C to T substitution at nucleotide position 94, causing the histidine (H) at amino acid position 32 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.52

BayesDel_addAF

Uncertain

0.068

BayesDel_noAF

Benign

-0.14

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.17

.;T;T

Eigen

Uncertain

0.51

Eigen_PC

Uncertain

0.51

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.95

D;D;D

M_CAP

Benign

0.022

MetaRNN

Pathogenic

0.81

D;D;D

MetaSVM

Benign

-0.98

MutationAssessor

Uncertain

2.3

M;M;.

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-1.5

N;N;D

REVEL

Benign

0.20

Sift

Benign

0.039

D;D;D

Sift4G

Uncertain

0.055

T;T;D

Polyphen

0.99

.;D;.

Vest4

0.88

MutPred

0.52

Loss of sheet (P = 0.0054);Loss of sheet (P = 0.0054);Loss of sheet (P = 0.0054);

MVP

0.55

MPC

1.5

ClinPred

0.92

GERP RS

6.0

Varity_R

0.094

gMVP

0.47

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over