Genetic Variant TTC28:p.Ala2339Thr (chr22-27982652-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001145418.2(TTC28):c.7015G>A(p.Ala2339Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000645 in 1,551,498 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000064 ( 0 hom. )

Consequence

TTC28
NM_001145418.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.75

Publications

1 publications found

Variant links:

Genes affected

TTC28 (HGNC:29179): (tetratricopeptide repeat domain 28) Enables kinase binding activity. Involved in regulation of mitotic cell cycle. Located in midbody. [provided by Alliance of Genome Resources, Apr 2022]

TTC28 links:

TTC28-AS1 (HGNC:29336): (TTC28 antisense RNA 1)

TTC28-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.13124487).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001145418.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TTC28	NM_001145418.2	MANE Select	c.7015G>A	p.Ala2339Thr	missense	Exon 23 of 23	NP_001138890.1	Q96AY4
TTC28	NM_001393403.1		c.6991G>A	p.Ala2331Thr	missense	Exon 22 of 22	NP_001380332.1
TTC28	NM_001393404.1		c.6661G>A	p.Ala2221Thr	missense	Exon 22 of 22	NP_001380333.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TTC28	ENST00000397906.7	TSL:1 MANE Select	c.7015G>A	p.Ala2339Thr	missense	Exon 23 of 23	ENSP00000381003.2	Q96AY4
TTC28-AS1	ENST00000419253.1	TSL:1	n.146-3040C>T		intron	N/A
TTC28-AS1	ENST00000454741.5	TSL:1	n.206-11821C>T		intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152038

Hom.:

Cov.:

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:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000128

AC:

AN:

156594

AF XY:

0.0000120

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000405

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000165

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000643

AC:

AN:

1399460

Hom.:

Cov.:

AF XY:

0.00000724

AC XY:

AN XY:

690234

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31598

American (AMR)

AF:

0.0000280

AC:

AN:

35704

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25182

East Asian (EAS)

AF:

0.00

AC:

AN:

35738

South Asian (SAS)

AF:

0.0000126

AC:

AN:

79236

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49308

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5698

European-Non Finnish (NFE)

AF:

0.00000463

AC:

AN:

1078984

Other (OTH)

AF:

0.0000345

AC:

AN:

58012

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.447

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:

0.00000658

AC:

AN:

152038

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74244

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41400

American (AMR)

AF:

0.00

AC:

AN:

15270

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5156

South Asian (SAS)

AF:

0.00

AC:

AN:

4816

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10590

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68020

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

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:

0.00

Hom.:

Bravo

AF:

0.0000113

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.073

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.27

CADD

Benign

(source)

DANN

Benign

0.82

DEOGEN2

Benign

0.019

Eigen

Benign

-0.35

Eigen_PC

Benign

-0.31

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.85

M_CAP

Benign

0.025

MetaRNN

Benign

0.13

MetaSVM

Uncertain

-0.22

MutationAssessor

Benign

1.5

PhyloP100

4.7

PrimateAI

Benign

0.47

PROVEAN

Benign

-0.50

REVEL

Benign

0.26

Sift

Benign

0.21

Sift4G

Benign

0.38

Polyphen

0.42

Vest4

0.25

MutPred

0.12

Gain of glycosylation at A2339 (P = 0.0059)

MVP

0.37

ClinPred

0.25

GERP RS

4.1

Varity_R

0.064

gMVP

0.18

Mutation Taster

=74/26

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