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GeneBe

22-27982363-C-T

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 1P and 12B. PP2BP4_StrongBP6_Very_Strong

The NM_001145418.2(TTC28):c.7304G>A(p.Arg2435His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00408 in 1,540,914 control chromosomes in the GnomAD database, including 26 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0024 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0043 ( 26 hom. )

Consequence

TTC28
NM_001145418.2 missense

Scores

15

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.0850
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-AS1 (HGNC:29336): (TTC28 antisense RNA 1)

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

PP2
Missense variant where missense usually causes diseases, TTC28
BP4
Computational evidence support a benign effect (MetaRNN=0.0032589138).
BP6
Variant 22-27982363-C-T is Benign according to our data. Variant chr22-27982363-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 778199.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TTC28NM_001145418.2 linkuse as main transcriptc.7304G>A p.Arg2435His missense_variant 23/23 ENST00000397906.7
TTC28-AS1NR_026963.1 linkuse as main transcriptn.251-12110C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TTC28ENST00000397906.7 linkuse as main transcriptc.7304G>A p.Arg2435His missense_variant 23/231 NM_001145418.2 P1
TTC28-AS1ENST00000454741.5 linkuse as main transcriptn.206-12110C>T intron_variant, non_coding_transcript_variant 1

Frequencies

GnomAD3 genomes
AF:
0.00239
AC:
358
AN:
150104
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000883
Gnomad AMI
AF:
0.0263
Gnomad AMR
AF:
0.00119
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000215
Gnomad FIN
AF:
0.000478
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00398
Gnomad OTH
AF:
0.00293
GnomAD3 exomes
AF:
0.00199
AC:
304
AN:
152458
Hom.:
1
AF XY:
0.00202
AC XY:
163
AN XY:
80872
show subpopulations
Gnomad AFR exome
AF:
0.000511
Gnomad AMR exome
AF:
0.00108
Gnomad ASJ exome
AF:
0.000484
Gnomad EAS exome
AF:
0.000849
Gnomad SAS exome
AF:
0.000134
Gnomad FIN exome
AF:
0.000242
Gnomad NFE exome
AF:
0.00412
Gnomad OTH exome
AF:
0.00306
GnomAD4 exome
AF:
0.00426
AC:
5925
AN:
1390694
Hom.:
26
Cov.:
30
AF XY:
0.00411
AC XY:
2819
AN XY:
685878
show subpopulations
Gnomad4 AFR exome
AF:
0.000255
Gnomad4 AMR exome
AF:
0.00132
Gnomad4 ASJ exome
AF:
0.000322
Gnomad4 EAS exome
AF:
0.000200
Gnomad4 SAS exome
AF:
0.000166
Gnomad4 FIN exome
AF:
0.000450
Gnomad4 NFE exome
AF:
0.00516
Gnomad4 OTH exome
AF:
0.00472
GnomAD4 genome
AF:
0.00238
AC:
358
AN:
150220
Hom.:
0
Cov.:
31
AF XY:
0.00221
AC XY:
162
AN XY:
73282
show subpopulations
Gnomad4 AFR
AF:
0.000880
Gnomad4 AMR
AF:
0.00119
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000215
Gnomad4 FIN
AF:
0.000478
Gnomad4 NFE
AF:
0.00398
Gnomad4 OTH
AF:
0.00290
Alfa
AF:
0.00347
Hom.:
1
Bravo
AF:
0.00254
TwinsUK
AF:
0.00566
AC:
21
ALSPAC
AF:
0.00519
AC:
20
ESP6500AA
AF:
0.000723
AC:
1
ESP6500EA
AF:
0.00471
AC:
15
ExAC
AF:
0.00139
AC:
39
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

TTC28-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesMar 01, 2022This 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). -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeJul 06, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.074
BayesDel_addAF
Benign
-0.44
T
BayesDel_noAF
Benign
-0.40
Cadd
Benign
11
Dann
Benign
0.96
DEOGEN2
Benign
0.010
T;T
Eigen
Benign
-1.0
Eigen_PC
Benign
-0.96
FATHMM_MKL
Benign
0.17
N
LIST_S2
Benign
0.77
T;T
M_CAP
Benign
0.018
T
MetaRNN
Benign
0.0033
T;T
MetaSVM
Benign
-0.66
T
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.32
T
Sift4G
Benign
0.14
T;T
Polyphen
0.0010
.;B
Vest4
0.069
MVP
0.095
ClinPred
0.16
T
GERP RS
1.6
Varity_R
0.030
gMVP
0.099

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.

Other links and lift over

dbSNP: rs56085644; hg19: chr22-28378351; API