14-39158282-T-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 3P and 5B. PM2PP3BP6BS1

The NM_001079537.2(TRAPPC6B):​c.267+3A>G variant causes a splice donor region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000314 in 1,498,104 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 Likely benign (no stars).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000033 ( 0 hom. )

Consequence

TRAPPC6B
NM_001079537.2 splice_donor_region, intron

Scores

2
Splicing: ADA: 0.9751
2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 2.23
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.
BP6
Variant 14-39158282-T-C is Benign according to our data. Variant chr14-39158282-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 3036646.Status of the report is no_assertion_criteria_provided, 0 stars.
BS1
Variant frequency is greater than expected in population sas. gnomad4_exome allele frequency = 0.0000327 (44/1345750) while in subpopulation SAS AF= 0.000501 (39/77914). AF 95% confidence interval is 0.000376. There are 0 homozygotes in gnomad4_exome. There are 30 alleles in male gnomad4_exome subpopulation. Median coverage is 20. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TRAPPC6BNM_001079537.2 linkuse as main transcriptc.267+3A>G splice_donor_region_variant, intron_variant ENST00000330149.10
TRAPPC6BNM_177452.4 linkuse as main transcriptc.267+3A>G splice_donor_region_variant, intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TRAPPC6BENST00000330149.10 linkuse as main transcriptc.267+3A>G splice_donor_region_variant, intron_variant 1 NM_001079537.2 P1Q86SZ2-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152236
Hom.:
0
Cov.:
33
show subpopulations
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:
0.000621
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000598
AC:
13
AN:
217254
Hom.:
0
AF XY:
0.0000761
AC XY:
9
AN XY:
118338
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000546
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000327
AC:
44
AN:
1345750
Hom.:
0
Cov.:
20
AF XY:
0.0000445
AC XY:
30
AN XY:
674754
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:
0.000501
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000194
Gnomad4 OTH exome
AF:
0.0000536
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152354
Hom.:
0
Cov.:
33
AF XY:
0.0000268
AC XY:
2
AN XY:
74488
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000621
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

TRAPPC6B-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesDec 30, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.33
CADD
Uncertain
23
DANN
Benign
0.95

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.98
dbscSNV1_RF
Pathogenic
0.73
SpliceAI score (max)
0.030
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.

Other links and lift over

dbSNP: rs557274534; hg19: chr14-39627486; API