chr8-119731990-C-T

Variant names:

• chr8-119731990-C-T
• NM_003184.4:c.3534G>A

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Moderate BP6_Moderate BP7

The NM_003184.4(TAF2):​c.3534G>A​(p.Lys1178Lys) variant causes a synonymous 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. Variant has been reported in ClinVar as Likely benign (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: TAF2 NM_003184.4 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 1.15
• Publications: 0 publications found

Genes affected

TAF2 (HGNC:11536): (TATA-box binding protein associated factor 2) 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 one of the larger subunits of TFIID that is stably associated with the TFIID complex. It contributes to interactions at and downstream of the transcription initiation site, interactions that help determine transcription complex response to activators. [provided by RefSeq, Jul 2008]

TAF2 Gene-Disease associations (from GenCC):

• microcephaly-thin corpus callosum-intellectual disability syndrome

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.27).
• BP6: Variant 8-119731990-C-T is Benign according to our data. Variant chr8-119731990-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 2090347.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=1.14 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003184.4. 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
	TAF2	NM_003184.4	MANE Select	c.3534G>A	p.Lys1178Lys	synonymous	Exon 26 of 26	NP_003175.2	Q6P1X5
	TAF2	NM_001437338.1		c.3690G>A	p.Lys1230Lys	synonymous	Exon 27 of 27	NP_001424267.1	A0A8I5KV60
	TAF2	NM_001438084.1		c.3579G>A	p.Lys1193Lys	synonymous	Exon 26 of 26	NP_001425013.1	A0A8I5QJR0

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TAF2	ENST00000378164.7	TSL:1 MANE Select	c.3534G>A	p.Lys1178Lys	synonymous	Exon 26 of 26	ENSP00000367406.2	Q6P1X5
	TAF2	ENST00000686879.1		c.3690G>A	p.Lys1230Lys	synonymous	Exon 27 of 27	ENSP00000509206.1	A0A8I5KV60
	TAF2	ENST00000685235.1		c.3579G>A	p.Lys1193Lys	synonymous	Exon 26 of 26	ENSP00000510174.1	A0A8I5QJR0

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.27
CADD	Benign	8.2
DANN	Benign	0.64
PhyloP100		1.1

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

Other links and lift over

hg19: chr8-120744230;