rs2071238

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_001371623.1(TCOF1):​c.1578C>T​(p.Pro526=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.156 in 1,612,736 control chromosomes in the GnomAD database, including 20,628 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.17 ( 2494 hom., cov: 34)
Exomes 𝑓: 0.15 ( 18134 hom. )

Consequence

TCOF1
NM_001371623.1 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.299
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 Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.74).
BP6
Variant 5-150375428-C-T is Benign according to our data. Variant chr5-150375428-C-T is described in ClinVar as [Benign]. Clinvar id is 130562.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr5-150375428-C-T is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=0.299 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.246 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TCOF1NM_001371623.1 linkuse as main transcriptc.1578C>T p.Pro526= synonymous_variant 11/27 ENST00000643257.2 NP_001358552.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TCOF1ENST00000643257.2 linkuse as main transcriptc.1578C>T p.Pro526= synonymous_variant 11/27 NM_001371623.1 ENSP00000493815 P3Q13428-3

Frequencies

GnomAD3 genomes
AF:
0.173
AC:
26247
AN:
151590
Hom.:
2489
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.250
Gnomad AMI
AF:
0.103
Gnomad AMR
AF:
0.118
Gnomad ASJ
AF:
0.0563
Gnomad EAS
AF:
0.129
Gnomad SAS
AF:
0.129
Gnomad FIN
AF:
0.137
Gnomad MID
AF:
0.127
Gnomad NFE
AF:
0.159
Gnomad OTH
AF:
0.157
GnomAD3 exomes
AF:
0.142
AC:
35687
AN:
250908
Hom.:
2888
AF XY:
0.141
AC XY:
19205
AN XY:
135724
show subpopulations
Gnomad AFR exome
AF:
0.253
Gnomad AMR exome
AF:
0.0836
Gnomad ASJ exome
AF:
0.0619
Gnomad EAS exome
AF:
0.141
Gnomad SAS exome
AF:
0.140
Gnomad FIN exome
AF:
0.139
Gnomad NFE exome
AF:
0.153
Gnomad OTH exome
AF:
0.129
GnomAD4 exome
AF:
0.154
AC:
224991
AN:
1461032
Hom.:
18134
Cov.:
35
AF XY:
0.153
AC XY:
111326
AN XY:
726732
show subpopulations
Gnomad4 AFR exome
AF:
0.254
Gnomad4 AMR exome
AF:
0.0866
Gnomad4 ASJ exome
AF:
0.0600
Gnomad4 EAS exome
AF:
0.0898
Gnomad4 SAS exome
AF:
0.139
Gnomad4 FIN exome
AF:
0.138
Gnomad4 NFE exome
AF:
0.161
Gnomad4 OTH exome
AF:
0.152
GnomAD4 genome
AF:
0.173
AC:
26295
AN:
151704
Hom.:
2494
Cov.:
34
AF XY:
0.171
AC XY:
12643
AN XY:
74132
show subpopulations
Gnomad4 AFR
AF:
0.250
Gnomad4 AMR
AF:
0.118
Gnomad4 ASJ
AF:
0.0563
Gnomad4 EAS
AF:
0.130
Gnomad4 SAS
AF:
0.128
Gnomad4 FIN
AF:
0.137
Gnomad4 NFE
AF:
0.159
Gnomad4 OTH
AF:
0.159
Alfa
AF:
0.164
Hom.:
941
Bravo
AF:
0.174
Asia WGS
AF:
0.157
AC:
543
AN:
3478
EpiCase
AF:
0.147
EpiControl
AF:
0.147

ClinVar

Significance: Benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:4
Benign, no assertion criteria providedclinical testingJoint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+-- -
Likely benign, no assertion criteria providedclinical testingGenetic Services Laboratory, University of Chicago-Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Benign, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, University Medical Center Utrecht-- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxMar 03, 2015- -
Treacher Collins syndrome 1 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 30, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.74
CADD
Benign
8.9
DANN
Benign
0.43
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
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: rs2071238; hg19: chr5-149754991; COSMIC: COSV60345675; COSMIC: COSV60345675; API