NM_175914.5:c.319+898G>A

Variant names:

• chr20-44408373-G-A
• rs11574730
• NM_175914.5:c.319+898G>A

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_175914.5(HNF4A):​c.319+898G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.147 in 152,024 control chromosomes in the GnomAD database, including 2,175 homozygotes. 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: 𝑓 0.15 (2175 hom., cov: 32)
• Consequence: HNF4A NM_175914.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.118
• Publications: 9 publications found

Genes affected

HNF4A (HGNC:5024): (hepatocyte nuclear factor 4 alpha) The protein encoded by this gene is a nuclear transcription factor which binds DNA as a homodimer. The encoded protein controls the expression of several genes, including hepatocyte nuclear factor 1 alpha, a transcription factor which regulates the expression of several hepatic genes. This gene may play a role in development of the liver, kidney, and intestines. Mutations in this gene have been associated with monogenic autosomal dominant non-insulin-dependent diabetes mellitus type I. Alternative splicing of this gene results in multiple transcript variants encoding several different isoforms. [provided by RefSeq, Apr 2012]

MIR3646 (HGNC:38935): (microRNA 3646) microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop. [provided by RefSeq, Sep 2009]

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.79).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.276 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_175914.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HNF4A	NM_175914.5	MANE Select	c.319+898G>A		intron	N/A	NP_787110.2
	HNF4A	NM_000457.6		c.385+898G>A		intron	N/A	NP_000448.3
	HNF4A	NM_001258355.2		c.364+898G>A		intron	N/A	NP_001245284.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HNF4A	ENST00000316673.9	TSL:1 MANE Select	c.319+898G>A		intron	N/A	ENSP00000315180.4
	HNF4A	ENST00000316099.10	TSL:1	c.385+898G>A		intron	N/A	ENSP00000312987.3
	HNF4A	ENST00000415691.2	TSL:1	c.385+898G>A		intron	N/A	ENSP00000412111.1

Frequencies

GnomAD3 genomes AF: 0.147 AC: 22317 AN: 151906 Hom.: 2167 Cov.: 32

Gnomad AFR AF: 0.281

Gnomad AMI AF: 0.0998

Gnomad AMR AF: 0.0978

Gnomad ASJ AF: 0.0579

Gnomad EAS AF: 0.0934

Gnomad SAS AF: 0.175

Gnomad FIN AF: 0.125

Gnomad MID AF: 0.139

Gnomad NFE AF: 0.0878

Gnomad OTH AF: 0.133

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

GnomAD4 genome AF: 0.147 AC: 22341 AN: 152024 Hom.: 2175 Cov.: 32 AF XY: 0.148 AC XY: 10970 AN XY: 74320

African (AFR) AF: 0.281 AC: 11623 AN: 41406

American (AMR) AF: 0.0976 AC: 1493 AN: 15298

Ashkenazi Jewish (ASJ) AF: 0.0579 AC: 201 AN: 3470

East Asian (EAS) AF: 0.0930 AC: 481 AN: 5172

South Asian (SAS) AF: 0.176 AC: 847 AN: 4818

European-Finnish (FIN) AF: 0.125 AC: 1315 AN: 10560

Middle Eastern (MID) AF: 0.143 AC: 42 AN: 294

European-Non Finnish (NFE) AF: 0.0878 AC: 5970 AN: 67984

Other (OTH) AF: 0.132 AC: 278 AN: 2110

Alfa AF: 0.107 Hom.: 3633

Bravo AF: 0.147

Asia WGS AF: 0.123 AC: 428 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.79
CADD	Benign	1.9
DANN	Benign	0.77
PhyloP100		-0.12
Mutation Taster		=100/0	polymorphism (auto)

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: rs11574730; hg19: chr20-43037013;