7-100107101-G-T

Position:

• chr7-100107101-G-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BS1 BS2

The NM_139315.3(TAF6):​c.*145C>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00155 in 1,318,978 control chromosomes in the GnomAD database, including 33 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.0077 (17 hom., cov: 32)
  • Exomes 𝑓: 0.00075 (16 hom.)
• Consequence: TAF6 NM_139315.3 3_prime_UTR
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.847

Genes affected

AP4M1 (HGNC:574): (adaptor related protein complex 4 subunit mu 1) This gene encodes a subunit of the heterotetrameric AP-4 complex. The encoded protein belongs to the adaptor complexes medium subunits family. This AP-4 complex is involved in the recognition and sorting of cargo proteins with tyrosine-based motifs from the trans-golgi network to the endosomal-lysosomal system. [provided by RefSeq, Jul 2008]

TAF6 (HGNC:11540): (TATA-box binding protein associated factor 6) 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 smaller subunits of TFIID that binds weakly to TBP but strongly to TAF1, the largest subunit of TFIID. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2010]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.77).
• BP6: Variant 7-100107101-G-T is Benign according to our data. Variant chr7-100107101-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 1186443.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00772 (1177/152370) while in subpopulation AFR AF= 0.0276 (1147/41580). AF 95% confidence interval is 0.0263. There are 17 homozygotes in gnomad4. There are 538 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 17 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
AP4M1	NM_004722.4	c.*219G>T		3_prime_UTR_variant	15/15	ENST00000359593.9
TAF6	NM_139315.3	c.*145C>A		3_prime_UTR_variant	15/15	ENST00000453269.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
AP4M1	ENST00000359593.9	c.*219G>T		3_prime_UTR_variant	15/15	1	NM_004722.4	P3
TAF6	ENST00000453269.7	c.*145C>A		3_prime_UTR_variant	15/15	1	NM_139315.3	P1

Frequencies

GnomAD3 genomes AF: 0.00770 AC: 1172 AN: 152252 Hom.: 16 Cov.: 32

Gnomad AFR AF: 0.0275

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000850

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000192

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000588

Gnomad OTH AF: 0.00573

GnomAD4 exome AF: 0.000748 AC: 873 AN: 1166608 Hom.: 16 Cov.: 17 AF XY: 0.000681 AC XY: 392 AN XY: 575408

Gnomad4 AFR exome AF: 0.0292

Gnomad4 AMR exome AF: 0.00107

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000466

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000110

Gnomad4 OTH exome AF: 0.00143

GnomAD4 genome AF: 0.00772 AC: 1177 AN: 152370 Hom.: 17 Cov.: 32 AF XY: 0.00722 AC XY: 538 AN XY: 74514

Gnomad4 AFR AF: 0.0276

Gnomad4 AMR AF: 0.000849

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000193

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000588

Gnomad4 OTH AF: 0.00567

Alfa AF: 0.00802 Hom.: 0

Bravo AF: 0.00887

Asia WGS AF: 0.000577 AC: 2 AN: 3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Nov 13, 2019

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.77
CADD	Benign	13
DANN	Benign	0.65
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0

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: rs4134930; hg19: chr7-99704724;