8-115587043-C-G

Variant names:

• chr8-115587043-C-G
• rs191525942
• NM_014112.5:c.2658G>C

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_014112.5(TRPS1):​c.2658G>C​(p.Ser886Ser) 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. S886S) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: TRPS1 NM_014112.5 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.90
• Publications: 1 publications found

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]

TRPS1 Gene-Disease associations (from GenCC):

• trichorhinophalangeal syndrome type I

  Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
• trichorhinophalangeal syndrome, type III

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• trichorhinophalangeal syndrome type I or III

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

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=-0.73).
• BP7: Synonymous conserved (PhyloP=-2.9 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TRPS1	NM_014112.5	c.2658G>C	p.Ser886Ser	synonymous_variant	Exon 5 of 7	ENST00000395715.8	NP_054831.2
TRPS1	NM_001282903.3	c.2637G>C	p.Ser879Ser	synonymous_variant	Exon 5 of 7		NP_001269832.1
TRPS1	NM_001282902.3	c.2631G>C	p.Ser877Ser	synonymous_variant	Exon 4 of 6		NP_001269831.1
TRPS1	NM_001330599.2	c.2619G>C	p.Ser873Ser	synonymous_variant	Exon 4 of 6		NP_001317528.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TRPS1	ENST00000395715.8	c.2658G>C	p.Ser886Ser	synonymous_variant	Exon 5 of 7	1	NM_014112.5	ENSP00000379065.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.00000402 AC: 1 AN: 248920 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000886

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.73
CADD	Benign	0.10
DANN	Benign	0.58
PhyloP100		-2.9

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

dbSNP: rs191525942; hg19: chr8-116599270;