Genetic Variant NM_001243156.2:c.2452C>G (chr16-84179021-G-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001243156.2(TAF1C):c.2452C>G(p.Arg818Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000686 in 1,458,288 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 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. R818L) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

TAF1C
NM_001243156.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.444

Publications

1 publications found

Variant links:

Genes affected

TAF1C (HGNC:11534): (TATA-box binding protein associated factor, RNA polymerase I subunit C) Initiation of transcription by RNA polymerase I requires the formation of a complex composed of the TATA-binding protein (TBP) and three TBP-associated factors (TAFs) specific for RNA polymerase I. This complex, known as SL1, binds to the core promoter of ribosomal RNA genes to position the polymerase properly and acts as a channel for regulatory signals. This gene encodes the largest SL1-specific TAF. Multiple alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2011]

TAF1C Gene-Disease associations (from GenCC):

complex neurodevelopmental disorder
Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

TAF1C links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.08523142).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TAF1C	NM_001243156.2 link	c.2452C>G	p.Arg818Gly	missense_variant	Exon 15 of 15	ENST00000566732.6	NP_001230085.2	Q15572-6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TAF1C	ENST00000566732.6 link	c.2452C>G	p.Arg818Gly	missense_variant	Exon 15 of 15	2	NM_001243156.2	ENSP00000455933.1		Q15572-6

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.86e-7

AC:

AN:

1458288

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

725566

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44700

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26118

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86240

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50018

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111920

Other (OTH)

AF:

0.00

AC:

AN:

60344

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.099

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.62

CADD

Benign

4.5

(source)

DANN

Benign

0.81

DEOGEN2

Benign

0.0069

.;.;T;.;.

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.25

LIST_S2

Benign

0.72

T;T;T;T;.

M_CAP

Benign

0.014

MetaRNN

Benign

0.085

T;T;T;T;T

MetaSVM

Benign

-0.94

MutationAssessor

Benign

1.4

.;.;L;.;.

PhyloP100

0.44

PrimateAI

Benign

0.21

PROVEAN

Benign

-2.0

.;N;N;N;N

REVEL

Benign

0.052

Sift

Benign

0.040

.;D;D;D;D

Sift4G

Uncertain

0.033

D;D;D;D;D

Polyphen

0.047, 0.15

.;B;B;B;.

Vest4

0.18

MutPred

0.20

.;.;Loss of MoRF binding (P = 0.0073);.;.;

MVP

0.095

ClinPred

0.097

GERP RS

2.7

Varity_R

0.069

gMVP

0.12

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over