chr8-115411268-CTAT-C

Position:

• chr8-115411268-CTAT-C

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BS1_Supporting BS2

The NM_014112.5(TRPS1):​c.*2752_*2754del variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000086 in 151,244 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: 𝑓 0.000086 (0 hom., cov: 32)
• Consequence: TRPS1 NM_014112.5 3_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.583

Genes affected

TRPS1 (HGNC:12340): (transcriptional repressor GATA binding 1) This gene encodes a transcription factor that represses GATA-regulated genes and binds to a dynein light chain protein. Binding of the encoded protein to the dynein light chain protein affects binding to GATA consensus sequences and suppresses its transcriptional activity. Defects in this gene are a cause of tricho-rhino-phalangeal syndrome (TRPS) types I-III. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_benign. Variant got -5 ACMG points.

• BS1: Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000086 (13/151244) while in subpopulation AMR AF= 0.000725 (11/15170). AF 95% confidence interval is 0.000406. There are 0 homozygotes in gnomad4. There are 7 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
• BS2: High AC in GnomAd4 at 13 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TRPS1	NM_014112.5	c.*2752_*2754del		3_prime_UTR_variant	7/7	ENST00000395715.8
TRPS1	NM_001282902.3	c.*2752_*2754del		3_prime_UTR_variant	6/6
TRPS1	NM_001282903.3	c.*2752_*2754del		3_prime_UTR_variant	7/7
TRPS1	NM_001330599.2	c.*2752_*2754del		3_prime_UTR_variant	6/6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TRPS1	ENST00000395715.8	c.*2752_*2754del		3_prime_UTR_variant	7/7	1	NM_014112.5	A1
TRPS1	ENST00000640765.1	c.*2752_*2754del		3_prime_UTR_variant	6/6	2		P4

Frequencies

GnomAD3 genomes AF: 0.0000860 AC: 13 AN: 151244 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000725

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000194

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0000860 AC: 13 AN: 151244 Hom.: 0 Cov.: 32 AF XY: 0.0000949 AC XY: 7 AN XY: 73796

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.000725

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000194

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000147

Gnomad4 OTH AF: 0.00

Bravo AF: 0.000110

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Trichorhinophalangeal syndrome Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

- -

Computational scores

Source: dbNSFP v4.3

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		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: rs886062612; hg19: chr8-116423496;