9-32630412-T-A

Position:

• chr9-32630412-T-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_153809.2(TAF1L):​c.5168A>T​(p.Tyr1723Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: TAF1L NM_153809.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.41

Genes affected

TAF1L (HGNC:18056): (TATA-box binding protein associated factor 1 like) This locus is intronless, and apparently arose in the primate lineage from retrotransposition of the transcript from the multi-exon TAF1 locus on the X chromosome. The gene is expressed in male germ cells, and the product has been shown to function interchangeably with the TAF1 product. [provided by RefSeq, Aug 2015]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.05435294).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TAF1L	NM_153809.2	c.5168A>T	p.Tyr1723Phe	missense_variant	1/1	ENST00000242310.4	NP_722516.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TAF1L	ENST00000242310.4	c.5168A>T	p.Tyr1723Phe	missense_variant	1/1		NM_153809.2	ENSP00000418379	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 27, 2022

The c.5168A>T (p.Y1723F) alteration is located in exon 1 (coding exon 1) of the TAF1L gene. This alteration results from a A to T substitution at nucleotide position 5168, causing the tyrosine (Y) at amino acid position 1723 to be replaced by a phenylalanine (F). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.079
BayesDel_addAF	Benign	-0.33	T
BayesDel_noAF	Benign	-0.71
CADD	Benign	0.12
DANN	Benign	0.69
DEOGEN2	Benign	0.0080	T
Eigen	Benign	-1.2
Eigen_PC	Benign	-1.3
FATHMM_MKL	Benign	0.033	N
LIST_S2	Benign	0.74	T
M_CAP	Benign	0.00065	T
MetaRNN	Benign	0.054	T
MetaSVM	Benign	-0.91	T
MutationAssessor	Benign	-0.34	N
MutationTaster	Benign	1.0	N
PrimateAI	Benign	0.38	T
PROVEAN	Benign	-0.23	N
REVEL	Benign	0.0090
Sift	Benign	1.0	T
Sift4G	Benign	0.70	T
Polyphen		0.0	B
Vest4		0.067
MutPred		0.33		Loss of phosphorylation at Y1723 (P = 9e-04);
MVP		0.29
MPC		0.12
ClinPred		0.046	T
GERP RS		0.15
Varity_R		0.050
gMVP		0.069

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

LitVar

Other links and lift over

dbSNP: rs1300239639; hg19: chr9-32630410;