chr1-244863787-T-C

Position:

• chr1-244863787-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_031844.3(HNRNPU):​c.521A>G​(p.Gln174Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000138 in 1,454,346 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: HNRNPU NM_031844.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.283

Genes affected

HNRNPU (HGNC:5048): (heterogeneous nuclear ribonucleoprotein U) This gene encodes a member of a family of proteins that bind nucleic acids and function in the formation of ribonucleoprotein complexes in the nucleus with heterogeneous nuclear RNA (hnRNA). The encoded protein has affinity for both RNA and DNA, and binds scaffold-attached region (SAR) DNA. Mutations in this gene have been associated with epileptic encephalopathy, early infantile, 54. A pseudogene of this gene has been identified on chromosome 14. [provided by RefSeq, Jun 2017]

HNRNPU (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), HNRNPU. . Gene score misZ 3.3718 (greater than the threshold 3.09). Trascript score misZ 3.5021 (greater than threshold 3.09). GenCC has associacion of gene with developmental and epileptic encephalopathy, 54, complex neurodevelopmental disorder.
• BP4: Computational evidence support a benign effect (MetaRNN=0.10608369).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HNRNPU	NM_031844.3	c.521A>G	p.Gln174Arg	missense_variant	1/14	ENST00000640218.2	NP_114032.2
HNRNPU	NM_004501.3	c.521A>G	p.Gln174Arg	missense_variant	1/14		NP_004492.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
HNRNPU	ENST00000640218.2	c.521A>G	p.Gln174Arg	missense_variant	1/14	1	NM_031844.3	ENSP00000491215.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000138 AC: 2 AN: 1454346 Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0 AN XY: 723152

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Seizure Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Centre for Mendelian Genomics, University Medical Centre Ljubljana

Jan 01, 2017

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.28	T
BayesDel_noAF	Benign	-0.64
CADD	Benign	16
DANN	Benign	0.67
DEOGEN2	Benign	0.17	.;T;.;.
Eigen	Benign	-1.2
Eigen_PC	Benign	-1.3
FATHMM_MKL	Benign	0.0072	N
LIST_S2	Benign	0.73	T;T;T;T
M_CAP	Pathogenic	0.43	D
MetaRNN	Benign	0.11	T;T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.34	N;N;.;.
PrimateAI	Pathogenic	0.84	D
PROVEAN	Benign	-1.1	N;.;N;.
REVEL	Benign	0.073
Sift	Benign	0.088	T;.;T;.
Sift4G	Benign	0.28	T;.;T;.
Polyphen		0.0	B;B;.;.
Vest4		0.13
MutPred		0.23		Gain of MoRF binding (P = 0.0119);Gain of MoRF binding (P = 0.0119);Gain of MoRF binding (P = 0.0119);.;
MVP		0.30
MPC		0.74
ClinPred		0.057	T
GERP RS		-5.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.9
Varity_R		0.053
gMVP		0.17

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: rs1553283861; hg19: chr1-245027089;