rs11781386

Positions:

• chr8-140405697-A-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_001160372.4(TRAPPC9):​c.888T>A​(p.Gly296Gly) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: TRAPPC9 NM_001160372.4 splice_region, synonymous
• Scores: Splicing: ADA: 0.0007817
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.348

Genes affected

TRAPPC9 (HGNC:30832): (trafficking protein particle complex subunit 9) This gene encodes a protein that likely plays a role in NF-kappa-B signaling. Mutations in this gene have been associated with autosomal-recessive cognitive disability. Alternatively spliced transcript variants have been described.[provided by RefSeq, Feb 2010]

TRAPPC9 (HGNC:):

ACMG classification

Verdict is Likely_benign. Variant got -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.45).
• BP7: Synonymous conserved (PhyloP=0.348 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TRAPPC9	NM_001160372.4	c.888T>A	p.Gly296Gly	splice_region_variant, synonymous_variant	6/23	ENST00000438773.4	NP_001153844.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TRAPPC9	ENST00000438773.4	c.888T>A	p.Gly296Gly	splice_region_variant, synonymous_variant	6/23	1	NM_001160372.4	ENSP00000405060.3
TRAPPC9	ENST00000520857.5	c.417T>A	p.Gly139Gly	splice_region_variant, synonymous_variant	4/21	1		ENSP00000430116.1
TRAPPC9	ENST00000648948.2	c.888T>A	p.Gly296Gly	splice_region_variant, synonymous_variant	6/23			ENSP00000498020.1
TRAPPC9	ENST00000521944.1	n.88T>A		splice_region_variant, non_coding_transcript_exon_variant	2/2	3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.45
CADD	Benign	11
DANN	Benign	0.73
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00078
dbscSNV1_RF	Benign	0.020
SpliceAI score (max)		0.020		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: rs11781386; hg19: chr8-141415796;