Genetic Variant TRAPPC6B:c.352-17A>G (chr14-39151856-T-C) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 2P and 10B. PM2BP4_StrongBP6_ModerateBS1

The NM_001079537.2(TRAPPC6B):c.352-17A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0003 in 1,518,150 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0015 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

TRAPPC6B
NM_001079537.2 intron

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.312

Variant links:

Genes affected

TRAPPC6B (HGNC:23066): (trafficking protein particle complex subunit 6B) TRAPPC6B is a component of TRAPP complexes, which are tethering complexes involved in vesicle transport (Kummel et al., 2005 [PubMed 16025134]).[supplied by OMIM, Mar 2008]

TRAPPC6B links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.81).

BP6

Variant 14-39151856-T-C is Benign according to our data. Variant chr14-39151856-T-C is described in ClinVar as [Benign]. Clinvar id is 1989714.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00154 (234/151900) while in subpopulation AFR AF= 0.00535 (221/41280). AF 95% confidence interval is 0.00477. There are 0 homozygotes in gnomad4. There are 120 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TRAPPC6B	NM_001079537.2 link	c.352-17A>G		intron_variant	Intron 4 of 5	ENST00000330149.10	NP_001073005.1	Q86SZ2-1
TRAPPC6B	NM_177452.4 link	c.268-17A>G		intron_variant	Intron 3 of 4		NP_803235.1	Q86SZ2-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TRAPPC6B	ENST00000330149.10 link	c.352-17A>G		intron_variant	Intron 4 of 5	1	NM_001079537.2	ENSP00000330289.5		Q86SZ2-1

Frequencies

GnomAD3 genomes

AF:

0.00153

AC:

232

AN:

151780

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00532

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000328

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000415

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00192

GnomAD3 exomes

AF:

0.000362

AC:

AN:

221242

Hom.:

AF XY:

0.000307

AC XY:

AN XY:

120434

show subpopulations

Gnomad AFR exome

AF:

0.00485

Gnomad AMR exome

AF:

0.0000392

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000162

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000953

Gnomad OTH exome

AF:

0.000191

GnomAD4 exome

AF:

0.000162

AC:

222

AN:

1366250

Hom.:

Cov.:

AF XY:

0.000139

AC XY:

AN XY:

683340

show subpopulations

Gnomad4 AFR exome

AF:

0.00529

Gnomad4 AMR exome

AF:

0.000196

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000165

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000211

Gnomad4 OTH exome

AF:

0.000476

GnomAD4 genome

AF:

0.00154

AC:

234

AN:

151900

Hom.:

Cov.:

AF XY:

0.00162

AC XY:

120

AN XY:

74282

show subpopulations

Gnomad4 AFR

AF:

0.00535

Gnomad4 AMR

AF:

0.000328

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000415

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00190

Alfa

AF:

0.0000692

Hom.:

Bravo

AF:

0.00181

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.81

CADD

Benign

1.8

DANN

Benign

0.70

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over