Genetic Variant TMCC1:p.Arg647Gln (chr3-129651503-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001017395.5(TMCC1):c.1940G>A(p.Arg647Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000235 in 1,613,870 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R647P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

TMCC1
NM_001017395.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.68

Publications

1 publications found

Variant links:

Genes affected

TMCC1 (HGNC:29116): (transmembrane and coiled-coil domain family 1) Enables identical protein binding activity. Involved in several processes, including endosome fission; endosome membrane tubulation; and membrane fission. Located in cytosol; endoplasmic reticulum-endosome membrane contact site; and rough endoplasmic reticulum. [provided by Alliance of Genome Resources, Apr 2022]

TMCC1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.015871555).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001017395.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TMCC1	NM_001017395.5	MANE Select	c.1940G>A	p.Arg647Gln	missense	Exon 7 of 7	NP_001017395.2	O94876-1
TMCC1	NM_001349263.2		c.1940G>A	p.Arg647Gln	missense	Exon 8 of 8	NP_001336192.1	O94876-1
TMCC1	NM_001349264.2		c.1940G>A	p.Arg647Gln	missense	Exon 7 of 7	NP_001336193.1	O94876-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TMCC1	ENST00000393238.8	TSL:1 MANE Select	c.1940G>A	p.Arg647Gln	missense	Exon 7 of 7	ENSP00000376930.3	O94876-1
TMCC1	ENST00000432054.6	TSL:1	c.968G>A	p.Arg323Gln	missense	Exon 4 of 4	ENSP00000404711.2	Q6N039
TMCC1	ENST00000858270.1		c.1940G>A	p.Arg647Gln	missense	Exon 8 of 8	ENSP00000528329.1

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152098

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000577

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.0000637

AC:

AN:

251250

AF XY:

0.0000589

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000652

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000192

AC:

AN:

1461654

Hom.:

Cov.:

AF XY:

0.0000248

AC XY:

AN XY:

727104

show subpopulations

African (AFR)

AF:

0.0000896

AC:

AN:

33466

American (AMR)

AF:

0.00

AC:

AN:

44708

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26120

East Asian (EAS)

AF:

0.000327

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000348

AC:

AN:

86230

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53414

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00000720

AC:

AN:

1111868

Other (OTH)

AF:

0.0000166

AC:

AN:

60384

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.471

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000657

AC:

AN:

152216

Hom.:

Cov.:

AF XY:

0.0000806

AC XY:

AN XY:

74418

show subpopulations

African (AFR)

AF:

0.0000722

AC:

AN:

41524

American (AMR)

AF:

0.00

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000578

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4816

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10588

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68022

Other (OTH)

AF:

0.000473

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000406

Hom.:

Bravo

AF:

0.0000416

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000988

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.086

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.24

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.023

Eigen

Benign

-0.095

Eigen_PC

Benign

0.042

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.93

M_CAP

Benign

0.0090

MetaRNN

Benign

0.016

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.7

PhyloP100

5.7

PrimateAI

Benign

0.38

PROVEAN

Benign

-1.5

REVEL

Benign

0.10

Sift

Benign

0.043

Sift4G

Benign

0.099

Polyphen

0.052

Vest4

0.40

MVP

0.40

MPC

1.0

ClinPred

0.069

GERP RS

5.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Varity_R

0.31

gMVP

0.79

Mutation Taster

=62/38

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over