chr2-105272953-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_004257.6(TGFBRAP1):​c.1874C>T​(p.Ala625Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000248 in 1,613,262 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

TGFBRAP1
NM_004257.6 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.50
Variant links:
Genes affected
TGFBRAP1 (HGNC:16836): (transforming growth factor beta receptor associated protein 1) This gene encodes a protein that binds to transforming growth factor-beta (TGF-beta) receptors and plays a role in TGF-beta signaling. The encoded protein acts as a chaprone in signaling downstream of TGF-beta. It is involved in signal-dependent association with SMAD4. The protein is also a component of mammalian CORVET, a multisubunit tethering protein complex that is involved in fusion of early endosomes. [provided by RefSeq, Jun 2016]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.04918152).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TGFBRAP1NM_004257.6 linkuse as main transcriptc.1874C>T p.Ala625Val missense_variant 10/12 ENST00000393359.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TGFBRAP1ENST00000393359.7 linkuse as main transcriptc.1874C>T p.Ala625Val missense_variant 10/121 NM_004257.6 P1
TGFBRAP1ENST00000595531.5 linkuse as main transcriptc.1874C>T p.Ala625Val missense_variant 9/111 P1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152090
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000797
AC:
2
AN:
250986
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135670
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461054
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
726840
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152208
Hom.:
0
Cov.:
31
AF XY:
0.0000134
AC XY:
1
AN XY:
74416
show subpopulations
Gnomad4 AFR
AF:
0.0000482
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 30, 2021The c.1874C>T (p.A625V) alteration is located in exon 10 (coding exon 9) of the TGFBRAP1 gene. This alteration results from a C to T substitution at nucleotide position 1874, causing the alanine (A) at amino acid position 625 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.076
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.70
CADD
Benign
12
DANN
Benign
0.97
DEOGEN2
Benign
0.076
T;T;T
Eigen
Benign
-0.96
Eigen_PC
Benign
-0.90
FATHMM_MKL
Benign
0.61
D
LIST_S2
Benign
0.49
T;.;.
M_CAP
Benign
0.0083
T
MetaRNN
Benign
0.049
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.96
L;L;L
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-0.44
.;N;N
REVEL
Benign
0.099
Sift
Benign
0.31
.;T;T
Sift4G
Benign
0.33
T;T;T
Polyphen
0.0
B;B;B
Vest4
0.053
MutPred
0.37
Gain of loop (P = 0.0079);Gain of loop (P = 0.0079);Gain of loop (P = 0.0079);
MVP
0.21
MPC
0.30
ClinPred
0.066
T
GERP RS
1.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.053
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: rs548934150; hg19: chr2-105889410; API