rs116354094

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001371623.1(TCOF1):​c.3510C>T​(p.His1170His) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00103 in 1,613,852 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0057 ( 5 hom., cov: 33)
Exomes 𝑓: 0.00054 ( 1 hom. )

Consequence

TCOF1
NM_001371623.1 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.305
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 5-150392169-C-T is Benign according to our data. Variant chr5-150392169-C-T is described in ClinVar as [Benign]. Clinvar id is 352228.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.305 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00573 (873/152354) while in subpopulation AFR AF= 0.0198 (825/41584). AF 95% confidence interval is 0.0187. There are 5 homozygotes in gnomad4. There are 414 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 873 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TCOF1NM_001371623.1 linkuse as main transcriptc.3510C>T p.His1170His synonymous_variant 21/27 ENST00000643257.2 NP_001358552.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TCOF1ENST00000643257.2 linkuse as main transcriptc.3510C>T p.His1170His synonymous_variant 21/27 NM_001371623.1 ENSP00000493815.1 Q13428-3

Frequencies

GnomAD3 genomes
AF:
0.00570
AC:
868
AN:
152236
Hom.:
5
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0198
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00222
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00382
GnomAD3 exomes
AF:
0.00145
AC:
364
AN:
250842
Hom.:
0
AF XY:
0.00107
AC XY:
145
AN XY:
135698
show subpopulations
Gnomad AFR exome
AF:
0.0190
Gnomad AMR exome
AF:
0.00127
Gnomad ASJ exome
AF:
0.0000994
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000441
Gnomad OTH exome
AF:
0.000817
GnomAD4 exome
AF:
0.000538
AC:
786
AN:
1461498
Hom.:
1
Cov.:
31
AF XY:
0.000473
AC XY:
344
AN XY:
727008
show subpopulations
Gnomad4 AFR exome
AF:
0.0176
Gnomad4 AMR exome
AF:
0.00143
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000297
Gnomad4 OTH exome
AF:
0.00147
GnomAD4 genome
AF:
0.00573
AC:
873
AN:
152354
Hom.:
5
Cov.:
33
AF XY:
0.00556
AC XY:
414
AN XY:
74504
show subpopulations
Gnomad4 AFR
AF:
0.0198
Gnomad4 AMR
AF:
0.00222
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.00378
Alfa
AF:
0.00293
Hom.:
0
Bravo
AF:
0.00654
Asia WGS
AF:
0.00115
AC:
4
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingAthena DiagnosticsJul 09, 2020- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxAug 14, 2019- -
Treacher Collins syndrome 1 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 18, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
0.68
DANN
Benign
0.32
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs116354094; hg19: chr5-149771732; API