rs784704

Positions:

• chr3-129976695-C-A
• chr3-129976695-C-G
• chr3-129976695-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_007117.5(TRH):​c.212-4C>A variant causes a splice region, splice polypyrimidine tract, intron 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. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 30)
• Consequence: TRH NM_007117.5 splice_region, splice_polypyrimidine_tract, intron
• Scores: Splicing: ADA: 0.00001045
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.108

Genes affected

TRH (HGNC:12298): (thyrotropin releasing hormone) This gene encodes a member of the thyrotropin-releasing hormone family. Cleavage of the encoded proprotein releases mature thyrotropin-releasing hormone, which is a tripeptide hypothalamic regulatory hormone. The human proprotein contains six thyrotropin-releasing hormone tripeptides. Thyrotropin-releasing hormone is involved in the regulation and release of thyroid-stimulating hormone, as well as prolactin. Deficiency of this hormone has been associated with hypothalamic hypothyroidism. [provided by RefSeq, May 2013]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.79).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TRH	NM_007117.5	c.212-4C>A		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000302649.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TRH	ENST00000302649.4	c.212-4C>A		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		1	NM_007117.5	P2
TRH	ENST00000507066.1	c.200-4C>A		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		5		A1

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Cov.: 68

GnomAD4 genome Cov.: 30

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.79
CADD	Benign	0.55
DANN	Benign	0.40

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.000010
dbscSNV1_RF	Benign	0.0020
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: rs784704; hg19: chr3-129695538;