4-38137235-G-T

Position:

• chr4-38137235-G-T

Variant summary

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

The NM_001396959.1(TBC1D1):​c.3689G>T​(p.Arg1230Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,230 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: TBC1D1 NM_001396959.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.24

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 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TBC1D1	NM_001396959.1	c.3689G>T	p.Arg1230Leu	missense_variant	22/22	ENST00000698857.1	NP_001383888.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TBC1D1	ENST00000698857.1	c.3689G>T	p.Arg1230Leu	missense_variant	22/22		NM_001396959.1	ENSP00000513987.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152112 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 32

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152230 Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1 AN XY: 74432

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.44
BayesDel_addAF	Uncertain	0.071	D
BayesDel_noAF	Uncertain	-0.040
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Benign	0.090	.;T;T
Eigen	Benign	0.15
Eigen_PC	Benign	0.040
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.96	D;D;D
M_CAP	Benign	0.027	D
MetaRNN	Uncertain	0.54	D;D;D
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.6	.;M;.
PrimateAI	Benign	0.48	T
PROVEAN	Uncertain	-2.4	N;N;.
REVEL	Benign	0.23
Sift	Benign	0.041	D;T;.
Sift4G	Uncertain	0.032	D;T;T
Polyphen		0.91	.;P;.
Vest4		0.74
MutPred		0.26		.;Gain of glycosylation at S1137 (P = 0.0112);.;
MVP		0.48
MPC		0.66
ClinPred		0.90	D
GERP RS		4.3
Varity_R		0.20
gMVP		0.52

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: rs13110318; hg19: chr4-38138856;