1-36137903-T-C

Variant names:

• chr1-36137903-T-C
• rs780808695
• NM_014408.5:c.316A>G

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_014408.5(TRAPPC3):​c.316A>G​(p.Ile106Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000248 in 1,614,042 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 31)
  • Exomes 𝑓: 0.000026 (0 hom.)
• Consequence: TRAPPC3 NM_014408.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.03
• Publications: 1 publications found

Genes affected

TRAPPC3 (HGNC:19942): (trafficking protein particle complex subunit 3) This gene encodes a component of the trafficking protein particle complex, which tethers transport vesicles to the cis-Golgi membrane. The encoded protein participates in the regulation of transport from the endoplasmic reticulum to the Golgi apparatus. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2012]

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 1 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: 1.2034 (below the threshold of 3.09). Trascript score misZ: 0.88837 (below the threshold of 3.09).
• BP4: Computational evidence support a benign effect (MetaRNN=0.17542908).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014408.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TRAPPC3	NM_014408.5	MANE Select	c.316A>G	p.Ile106Val	missense	Exon 4 of 5	NP_055223.1	O43617-1
	TRAPPC3	NM_001270894.2		c.340A>G	p.Ile114Val	missense	Exon 4 of 5	NP_001257823.1	A0A087WWM0
	TRAPPC3	NM_001270895.2		c.178A>G	p.Ile60Val	missense	Exon 4 of 5	NP_001257824.1	O43617-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TRAPPC3	ENST00000373166.8	TSL:1 MANE Select	c.316A>G	p.Ile106Val	missense	Exon 4 of 5	ENSP00000362261.3	O43617-1
	TRAPPC3	ENST00000923688.1		c.316A>G	p.Ile106Val	missense	Exon 4 of 5	ENSP00000593747.1
	TRAPPC3	ENST00000616395.4	TSL:3	c.340A>G	p.Ile114Val	missense	Exon 4 of 5	ENSP00000480332.1	A0A087WWM0

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152148 Hom.: 0 Cov.: 31

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: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251488 AF XY: 0.00000736

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 FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000879

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000260 AC: 38 AN: 1461894 Hom.: 0 Cov.: 32 AF XY: 0.0000220 AC XY: 16 AN XY: 727248

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.000347 AC: 2 AN: 5768

European-Non Finnish (NFE) AF: 0.0000306 AC: 34 AN: 1112012

Other (OTH) AF: 0.0000331 AC: 2 AN: 60396

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152148 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 74320

African (AFR) AF: 0.00 AC: 0 AN: 41430

American (AMR) AF: 0.00 AC: 0 AN: 15278

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5192

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10602

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000294 AC: 2 AN: 68026

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.0000965 Hom.: 0

Bravo AF: 0.0000227

ExAC AF: 0.00000824 AC: 1

EpiCase AF: 0.000218

EpiControl AF: 0.0000593

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.083	T
BayesDel_noAF	Benign	-0.36
CADD	Benign	20
DANN	Benign	0.97
DEOGEN2	Benign	0.082	T
Eigen	Benign	-0.085
Eigen_PC	Benign	0.12
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.97	D
M_CAP	Benign	0.0083	T
MetaRNN	Benign	0.18	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.1	L
PhyloP100		5.0
PrimateAI	Pathogenic	0.83	D
PROVEAN	Benign	-0.56	N
REVEL	Benign	0.081
Sift	Benign	0.49	T
Sift4G	Benign	0.54	T
Polyphen		0.019	B
Vest4		0.34
MVP		0.28
MPC		0.53
ClinPred		0.28	T
GERP RS		5.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8
Varity_R		0.26
gMVP		0.43
Mutation Taster		=76/24	polymorphism

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

Other links and lift over

dbSNP: rs780808695; hg19: chr1-36603504;