chr9-32631286-C-A

Position:

• chr9-32631286-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_153809.2(TAF1L):​c.4294G>T​(p.Val1432Phe) 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. 13/21 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: 3.49

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 Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.19107419).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TAF1L	NM_153809.2	c.4294G>T	p.Val1432Phe	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.4294G>T	p.Val1432Phe	missense_variant	1/1	6	NM_153809.2	ENSP00000418379.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 251460 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135898

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 36

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000756

ExAC AF: 0.00000824 AC: 1

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

Jun 07, 2023

The c.4294G>T (p.V1432F) alteration is located in exon 1 (coding exon 1) of the TAF1L gene. This alteration results from a G to T substitution at nucleotide position 4294, causing the valine (V) at amino acid position 1432 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	0.26
BayesDel_addAF	Benign	-0.32	T
BayesDel_noAF	Benign	-0.53
CADD	Uncertain	23
DANN	Uncertain	0.98
DEOGEN2	Benign	0.026	T
Eigen	Benign	-0.44
Eigen_PC	Benign	-0.53
FATHMM_MKL	Benign	0.69	D
LIST_S2	Benign	0.76	T
M_CAP	Benign	0.0022	T
MetaRNN	Benign	0.19	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.1	L
MutationTaster	Benign	1.0	D
PrimateAI	Benign	0.45	T
PROVEAN	Benign	-1.9	N
REVEL	Benign	0.12
Sift	Benign	0.22	T
Sift4G	Benign	0.066	T
Polyphen		0.90	P
Vest4		0.20
MutPred		0.39		Loss of MoRF binding (P = 0.1036);
MVP		0.51
MPC		0.60
ClinPred		0.64	D
GERP RS		-0.36
Varity_R		0.19
gMVP		0.55

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: rs759663955; hg19: chr9-32631284;