rs2516840

Positions:

• chr1-161041527-A-C
• chr1-161041527-A-G
• chr1-161041527-A-T

Variant summary

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

The NM_007122.5(USF1):​c.473-116T>G variant causes a 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 30)
• Consequence: USF1 NM_007122.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.320

Genes affected

USF1 (HGNC:12593): (upstream transcription factor 1) This gene encodes a member of the basic helix-loop-helix leucine zipper family, and can function as a cellular transcription factor. The encoded protein can activate transcription through pyrimidine-rich initiator (Inr) elements and E-box motifs. This gene has been linked to familial combined hyperlipidemia (FCHL). Alternative splicing of this gene results in multiple transcript variants. A related pseudogene has been defined on chromosome 21. [provided by RefSeq, Feb 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=-0.91).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
USF1	NM_007122.5	c.473-116T>G		intron_variant		ENST00000368021.7	NP_009053.1
USF1	NM_001276373.2	c.473-116T>G		intron_variant			NP_001263302.1
USF1	NM_207005.3	c.296-116T>G		intron_variant			NP_996888.1
USF1	XM_047429959.1	c.296-116T>G		intron_variant			XP_047285915.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
USF1	ENST00000368021.7	c.473-116T>G		intron_variant		1	NM_007122.5	ENSP00000357000	P1

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Cov.: 20

GnomAD4 genome Cov.: 30

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	0.11
DANN	Benign	0.43

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: rs2516840; hg19: chr1-161011317;