rs876657393

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2PP3_StrongPP5

The NM_020458.4(TTC7A):​c.2494G>A​(p.Ala832Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000248 in 1,613,694 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

TTC7A
NM_020458.4 missense

Scores

11
7
1

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 4.08
Variant links:
Genes affected
TTC7A (HGNC:19750): (tetratricopeptide repeat domain 7A) This gene encodes a protein containing tetratricopeptide repeats. Mutations in this gene disrupt intestinal development and can cause early onset inflammatory bowel disease and intestinal atresia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2014]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.95
PP5
Variant 2-47073840-G-A is Pathogenic according to our data. Variant chr2-47073840-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 190394.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TTC7ANM_020458.4 linkuse as main transcriptc.2494G>A p.Ala832Thr missense_variant 20/20 ENST00000319190.11 NP_065191.2 Q9ULT0-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TTC7AENST00000319190.11 linkuse as main transcriptc.2494G>A p.Ala832Thr missense_variant 20/202 NM_020458.4 ENSP00000316699.5 Q9ULT0-1
ENSG00000273269ENST00000422269.1 linkuse as main transcriptn.*656-7703C>T intron_variant 2 ENSP00000476793.1 V9GYI7

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152236
Hom.:
0
Cov.:
33
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
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461458
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
727072
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152236
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74358
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Gastrointestinal defects and immunodeficiency syndrome 1 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMApr 01, 2014- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.53
BayesDel_addAF
Pathogenic
0.31
D
BayesDel_noAF
Pathogenic
0.21
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.87
.;D;.
Eigen
Pathogenic
0.77
Eigen_PC
Uncertain
0.65
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.92
D;D;D
M_CAP
Pathogenic
0.72
D
MetaRNN
Pathogenic
0.95
D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
3.0
.;M;.
PrimateAI
Uncertain
0.62
T
PROVEAN
Uncertain
-3.0
D;D;D
REVEL
Pathogenic
0.90
Sift
Uncertain
0.0030
D;D;D
Sift4G
Uncertain
0.023
D;D;D
Polyphen
1.0
D;D;.
Vest4
0.43
MutPred
0.82
.;.;Gain of phosphorylation at A856 (P = 0.1459);
MVP
0.96
MPC
0.38
ClinPred
0.99
D
GERP RS
5.4
Varity_R
0.52
gMVP
0.52

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: rs876657393; hg19: chr2-47300979; API