Genetic Variant TAF9B:p.Pro137Ala (chrX-78136987-G-C) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_015975.5(TAF9B):c.409C>G(p.Pro137Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000753 in 1,182,302 control chromosomes in the GnomAD database, including 1 homozygotes. There are 51 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000036 ( 0 hom., 3 hem., cov: 23)

Exomes 𝑓: 0.000079 ( 1 hom. 48 hem. )

Consequence

TAF9B
NM_015975.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.52

Publications

0 publications found

Variant links:

Genes affected

TAF9B (HGNC:17306): (TATA-box binding protein associated factor 9b) Initiation of transcription by RNA polymerase II requires the activities of more than 70 polypeptides. The protein that coordinates these activities is transcription factor IID (TFIID), which binds to the core promoter to position the polymerase properly, serves as the scaffold for assembly of the remainder of the transcription complex, and acts as a channel for regulatory signals. TFIID is composed of the TATA-binding protein (TBP) and a group of evolutionarily conserved proteins known as TBP-associated factors or TAFs. TAFs may participate in basal transcription, serve as coactivators, function in promoter recognition or modify general transcription factors (GTFs) to facilitate complex assembly and transcription initiation. This gene encodes a protein that is similar to one of the small subunits of TFIID, TBP-associated factor 9, and is also a subunit of TFIID. TAF9 and TAF9b share some functions but also have distinct roles in the transcriptional regulatory process. [provided by RefSeq, Jul 2008]

TAF9B links:

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.011675864).

BS2

High Hemizygotes in GnomAd4 at 3 gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015975.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TAF9B	NM_015975.5	MANE Select	c.409C>G	p.Pro137Ala	missense	Exon 5 of 7	NP_057059.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TAF9B	ENST00000341864.6	TSL:1 MANE Select	c.409C>G	p.Pro137Ala	missense	Exon 5 of 7	ENSP00000339917.5	Q9HBM6
TAF9B	ENST00000888659.1		c.409C>G	p.Pro137Ala	missense	Exon 5 of 6	ENSP00000558718.1
TAF9B	ENST00000888658.1		c.274C>G	p.Pro92Ala	missense	Exon 4 of 6	ENSP00000558717.1

Frequencies

GnomAD3 genomes

AF:

0.0000358

AC:

AN:

111598

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000327

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00110

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000127

AC:

AN:

180566

AF XY:

0.000245

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000225

GnomAD4 exome

AF:

0.0000794

AC:

AN:

1070704

Hom.:

Cov.:

AF XY:

0.000142

AC XY:

AN XY:

338796

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

25955

American (AMR)

AF:

0.00

AC:

AN:

34513

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

18870

East Asian (EAS)

AF:

0.0000333

AC:

AN:

30046

South Asian (SAS)

AF:

0.00155

AC:

AN:

51523

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40017

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3949

European-Non Finnish (NFE)

AF:

0.00000122

AC:

AN:

820820

Other (OTH)

AF:

0.0000667

AC:

AN:

45011

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.445

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000358

AC:

AN:

111598

Hom.:

Cov.:

AF XY:

0.0000888

AC XY:

AN XY:

33768

show subpopulations

African (AFR)

AF:

0.0000327

AC:

AN:

30627

American (AMR)

AF:

0.00

AC:

AN:

10502

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2647

East Asian (EAS)

AF:

0.00

AC:

AN:

3590

South Asian (SAS)

AF:

0.00110

AC:

AN:

2724

European-Finnish (FIN)

AF:

0.00

AC:

AN:

5999

Middle Eastern (MID)

AF:

0.00

AC:

AN:

239

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

53075

Other (OTH)

AF:

0.00

AC:

AN:

1509

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000868

Hom.:

Bravo

AF:

0.00000756

ESP6500AA

AF:

0.000261

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000231

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.058

BayesDel_addAF

Benign

-0.70

BayesDel_noAF

Benign

-0.82

CADD

Benign

(source)

DANN

Benign

0.57

DEOGEN2

Benign

0.068

FATHMM_MKL

Uncertain

0.77

LIST_S2

Benign

0.62

M_CAP

Uncertain

0.099

MetaRNN

Benign

0.012

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.34

PhyloP100

2.5

PrimateAI

Benign

0.48

PROVEAN

Benign

-0.19

REVEL

Benign

0.017

Sift

Benign

0.33

Sift4G

Benign

0.81

Polyphen

0.048

Vest4

0.045

MVP

0.41

MPC

0.10

ClinPred

0.036

GERP RS

3.0

Varity_R

0.073

gMVP

0.36

Mutation Taster

=97/3

polymorphism

(source)

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over