rs2071240

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001371623.1(TCOF1):​c.1993G>A​(p.Ala665Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,614,062 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 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. A665P) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

TCOF1
NM_001371623.1 missense

Scores

4
15

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.260
Variant links:
Genes affected
TCOF1 (HGNC:11654): (treacle ribosome biogenesis factor 1) This gene encodes a nucleolar protein with a LIS1 homology domain. The protein is involved in ribosomal DNA gene transcription through its interaction with upstream binding factor (UBF). Mutations in this gene have been associated with Treacher Collins syndrome, a disorder which includes abnormal craniofacial development. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.11257088).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TCOF1NM_001371623.1 linkuse as main transcriptc.1993G>A p.Ala665Thr missense_variant 13/27 ENST00000643257.2 NP_001358552.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TCOF1ENST00000643257.2 linkuse as main transcriptc.1993G>A p.Ala665Thr missense_variant 13/27 NM_001371623.1 ENSP00000493815.1 Q13428-3

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152202
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000288
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
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
250932
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135752
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000298
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461860
Hom.:
0
Cov.:
34
AF XY:
0.00000275
AC XY:
2
AN XY:
727226
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.000115
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152202
Hom.:
0
Cov.:
34
AF XY:
0.0000269
AC XY:
2
AN XY:
74354
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000288
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
ExAC
AF:
0.0000165
AC:
2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.094
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Benign
-0.39
CADD
Benign
18
DANN
Uncertain
1.0
DEOGEN2
Benign
0.15
.;T;.;.;.;.;.;.;.;.;T;T
Eigen
Benign
-0.47
Eigen_PC
Benign
-0.59
FATHMM_MKL
Benign
0.35
N
LIST_S2
Uncertain
0.86
D;D;D;D;.;D;D;D;D;D;.;T
M_CAP
Benign
0.082
D
MetaRNN
Benign
0.11
T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.43
T
MutationAssessor
Benign
1.5
.;L;.;.;L;.;L;L;L;L;L;.
PrimateAI
Benign
0.33
T
PROVEAN
Uncertain
-2.5
.;N;N;N;.;.;.;N;N;N;N;N
REVEL
Benign
0.070
Sift
Uncertain
0.012
.;D;D;D;.;.;.;D;D;D;D;D
Sift4G
Benign
0.12
.;T;T;T;.;.;.;T;T;T;T;T
Polyphen
1.0, 0.35, 0.52
.;D;B;B;.;.;.;B;P;B;D;.
Vest4
0.12, 0.11, 0.11, 0.19, 0.12, 0.14
MutPred
0.27
.;Gain of phosphorylation at A665 (P = 0.0264);.;.;Gain of phosphorylation at A665 (P = 0.0264);Gain of phosphorylation at A665 (P = 0.0264);Gain of phosphorylation at A665 (P = 0.0264);Gain of phosphorylation at A665 (P = 0.0264);Gain of phosphorylation at A665 (P = 0.0264);Gain of phosphorylation at A665 (P = 0.0264);Gain of phosphorylation at A665 (P = 0.0264);Gain of phosphorylation at A665 (P = 0.0264);
MVP
0.45
MPC
0.16
ClinPred
0.38
T
GERP RS
1.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.051
gMVP
0.13

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs2071240; hg19: chr5-149755744; API