chr3-17166861-T-C

Position:

• chr3-17166861-T-C

Variant summary

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

The NM_001349074.2(TBC1D5):​c.2066A>G​(p.Gln689Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts 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: 33)
• Consequence: TBC1D5 NM_001349074.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.34

Genes affected

TBC1D5 (HGNC:19166): (TBC1 domain family member 5) Enables AP-2 adaptor complex binding activity and retromer complex binding activity. Involved in several processes, including macroautophagy; positive regulation of receptor internalization; and retrograde transport, endosome to Golgi. Located in Golgi apparatus; autophagosome; and endosome membrane. Part of retromer complex. Colocalizes with AP-2 adaptor complex and Atg1/ULK1 kinase complex. [provided by Alliance of Genome Resources, Apr 2022]

TBC1D5 (HGNC:):

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=0.20022705).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TBC1D5	NM_001349074.2	c.2066A>G	p.Gln689Arg	missense_variant	22/23	ENST00000696125.1	NP_001336003.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TBC1D5	ENST00000696125.1	c.2066A>G	p.Gln689Arg	missense_variant	22/23		NM_001349074.2	ENSP00000512418.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 25, 2024

The c.2066A>G (p.Q689R) alteration is located in exon 23 (coding exon 20) of the TBC1D5 gene. This alteration results from a A to G substitution at nucleotide position 2066, causing the glutamine (Q) at amino acid position 689 to be replaced by an arginine (R). 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	Benign	0.14
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.43
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.015	T;T;.
Eigen	Benign	0.15
Eigen_PC	Uncertain	0.29
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.93	.;D;D
M_CAP	Benign	0.015	T
MetaRNN	Benign	0.20	T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.7	L;L;.
PrimateAI	Uncertain	0.54	T
PROVEAN	Benign	-1.7	N;N;N
REVEL	Benign	0.12
Sift	Uncertain	0.0030	D;D;D
Sift4G	Uncertain	0.016	D;D;D
Polyphen		0.70	P;P;.
Vest4		0.38
MutPred		0.13		Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);.;
MVP		0.34
MPC		0.29
ClinPred		0.88	D
GERP RS		4.9
Varity_R		0.17
gMVP		0.26

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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.

Other links and lift over

hg19: chr3-17208353;