19-45163981-C-T

Position:

chr19-45163981-C-T

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_001270891.2(TRAPPC6A):c.383G>A(p.Arg128His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000319 in 1,575,406 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00033 ( 3 hom. )

Consequence

TRAPPC6A
NM_001270891.2 missense

Scores

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 2.09

Variant links:

Genes affected

TRAPPC6A (HGNC:23069): (trafficking protein particle complex subunit 6A) This gene encodes a component of the trafficking protein particle complex, which tethers transport vesicles to the cis-Golgi membrane. Loss of expression of the related gene in mouse affects coat and eye pigmentation, suggesting that the encoded protein may be involved in melanosome biogenesis. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Aug 2012]

TRAPPC6A links:

MARK4 (HGNC:13538): (microtubule affinity regulating kinase 4) This gene encodes a member of the microtubule affinity-regulating kinase family. These protein kinases phosphorylate microtubule-associated proteins and regulate the transition between stable and dynamic microtubules. The encoded protein is associated with the centrosome throughout mitosis and may be involved in cell cycle control. Expression of this gene is a potential marker for cancer, and the encoded protein may also play a role in Alzheimer's disease. Pseudogenes of this gene are located on both the short and long arm of chromosome 3. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Dec 2010]

MARK4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.039097875).

BP6

Variant 19-45163981-C-T is Benign according to our data. Variant chr19-45163981-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3045843.Status of the report is no_assertion_criteria_provided, 0 stars.

BS2

High Homozygotes in GnomAdExome4 at 3 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TRAPPC6A	NM_001270891.2 linkuse as main transcript	c.383G>A	p.Arg128His	missense_variant	5/6	ENST00000585934.1	NP_001257820.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TRAPPC6A	ENST00000585934.1 linkuse as main transcript	c.383G>A	p.Arg128His	missense_variant	5/6	1	NM_001270891.2	ENSP00000468612	P1	O75865-1

Frequencies

GnomAD3 genomes

AF:

0.000256

AC:

AN:

152124

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00331

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000206

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000625

AC:

116

AN:

185568

Hom.:

AF XY:

0.000821

AC XY:

AN XY:

98666

show subpopulations

Gnomad AFR exome

AF:

0.000176

Gnomad AMR exome

AF:

0.000152

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00400

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000140

Gnomad OTH exome

AF:

0.000204

GnomAD4 exome

AF:

0.000325

AC:

463

AN:

1423164

Hom.:

Cov.:

AF XY:

0.000429

AC XY:

302

AN XY:

703944

show subpopulations

Gnomad4 AFR exome

AF:

0.000151

Gnomad4 AMR exome

AF:

0.000160

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00361

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000129

Gnomad4 OTH exome

AF:

0.000322

GnomAD4 genome

AF:

0.000256

AC:

AN:

152242

Hom.:

Cov.:

AF XY:

0.000296

AC XY:

AN XY:

74430

show subpopulations

Gnomad4 AFR

AF:

0.000168

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00332

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000206

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000838

Hom.:

Bravo

AF:

0.000159

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.000684

AC:

ESP6500EA

AF:

0.000117

AC:

ExAC

AF:

0.000420

AC:

Asia WGS

AF:

0.00173

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

TRAPPC6A-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Sep 13, 2022

This 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

AlphaMissense

Benign

0.093

BayesDel_addAF

Benign

-0.40

BayesDel_noAF

Benign

-0.35

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.54

.;D

Eigen

Benign

0.12

Eigen_PC

Benign

0.067

FATHMM_MKL

Benign

0.29

LIST_S2

Uncertain

0.87

D;D

M_CAP

Uncertain

0.086

MetaRNN

Benign

0.039

T;T

MetaSVM

Uncertain

-0.25

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Benign

0.30

PROVEAN

Uncertain

-3.7

D;.

REVEL

Benign

0.23

Sift

Uncertain

0.015

D;.

Sift4G

Uncertain

0.0020

D;D

Polyphen

0.022

B;D

Vest4

0.35

MVP

0.58

MPC

0.094

ClinPred

0.14

GERP RS

4.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.075

gMVP

0.56

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