chr4-37902394-G-C

Variant names:

• chr4-37902394-G-C
• rs749274148
• NM_001396959.1:c.299G>C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001396959.1(TBC1D1):​c.299G>C​(p.Arg100Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,894 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: TBC1D1 NM_001396959.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.739

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.075737596).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TBC1D1	NM_001396959.1	c.299G>C	p.Arg100Pro	missense_variant	Exon 2 of 22	ENST00000698857.1	NP_001383888.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TBC1D1	ENST00000698857.1	c.299G>C	p.Arg100Pro	missense_variant	Exon 2 of 22		NM_001396959.1	ENSP00000513987.1
TBC1D1	ENST00000261439.9	c.299G>C	p.Arg100Pro	missense_variant	Exon 2 of 20	1		ENSP00000261439.4
TBC1D1	ENST00000508802.5	c.299G>C	p.Arg100Pro	missense_variant	Exon 2 of 21	2		ENSP00000423651.1
TBC1D1	ENST00000402522.1	c.299G>C	p.Arg100Pro	missense_variant	Exon 2 of 3	2		ENSP00000383994.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000795 AC: 2 AN: 251480 Hom.: 0 AF XY: 0.00000736 AC XY: 1 AN XY: 135918

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000109

Gnomad SAS 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: 6.84e-7 AC: 1 AN: 1461894 Hom.: 0 Cov.: 36 AF XY: 0.00000138 AC XY: 1 AN XY: 727248

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ExAC AF: 0.0000165 AC: 2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.63
BayesDel_addAF	Benign	-0.30	T
BayesDel_noAF	Benign	-0.45
CADD	Benign	14
DANN	Benign	0.97
DEOGEN2	Benign	0.055	.;T;T
Eigen	Benign	-0.93
Eigen_PC	Benign	-0.89
FATHMM_MKL	Benign	0.13	N
LIST_S2	Uncertain	0.88	D;D;D
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.076	T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.69	N;N;.
PrimateAI	Benign	0.25	T
PROVEAN	Benign	-0.68	N;N;D
REVEL	Benign	0.083
Sift	Uncertain	0.029	D;D;D
Sift4G	Benign	0.21	T;T;T
Polyphen		0.047	.;B;.
Vest4		0.31
MutPred		0.43		Loss of sheet (P = 7e-04);Loss of sheet (P = 7e-04);Loss of sheet (P = 7e-04);
MVP		0.27
MPC		0.82
ClinPred		0.061	T
GERP RS		0.085
Varity_R		0.23
gMVP		0.65

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

LitVar

Other links and lift over

dbSNP: rs749274148; hg19: chr4-37904015;