NM_031844.3:c.664G>A

Variant names:

• chr1-244863644-C-T
• rs1553283807
• NM_031844.3:c.664G>A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_031844.3(HNRNPU):​c.664G>A​(p.Gly222Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000716 in 1,396,824 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G222V) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.2e-7 (0 hom.)
• Consequence: HNRNPU NM_031844.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.58

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]

ENSG00000273175 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.1258055).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HNRNPU	NM_031844.3	c.664G>A	p.Gly222Ser	missense_variant	Exon 1 of 14	ENST00000640218.2	NP_114032.2
HNRNPU	NM_004501.3	c.634+30G>A		intron_variant	Intron 1 of 13		NP_004492.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HNRNPU	ENST00000640218.2	c.664G>A	p.Gly222Ser	missense_variant	Exon 1 of 14	1	NM_031844.3	ENSP00000491215.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 7.16e-7 AC: 1 AN: 1396824 Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0 AN XY: 694526

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: 0.0000272

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Jul 27, 2016

Genetic Services Laboratory, University of Chicago

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.094
BayesDel_addAF	Benign	-0.19	T
BayesDel_noAF	Benign	-0.51
CADD	Benign	23
DANN	Uncertain	0.97
DEOGEN2	Benign	0.11	T
Eigen	Benign	-0.59
Eigen_PC	Benign	-0.47
FATHMM_MKL	Benign	0.40	N
LIST_S2	Benign	0.57	T
M_CAP	Pathogenic	0.65	D
MetaRNN	Benign	0.13	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.0	N
PrimateAI	Pathogenic	0.92	D
Polyphen		0.36	B
MutPred		0.31		Gain of glycosylation at G222 (P = 0.0028);
ClinPred		0.28	T
GERP RS		1.2
RBP_binding_hub_radar		1.1
RBP_regulation_power_radar		3.5
Varity_R		0.096
gMVP		0.13

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		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: rs1553283807; hg19: chr1-245026946;