chr1-244855513-G-A

Variant names:

• chr1-244855513-G-A
• rs934976347
• NM_031844.3:c.2263C>T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP6_Moderate

The NM_031844.3(HNRNPU):​c.2263C>T​(p.Arg755Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,774 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R755H) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: HNRNPU NM_031844.3 missense
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 5.50

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP6: Variant 1-244855513-G-A is Benign according to our data. Variant chr1-244855513-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 568783.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HNRNPU	NM_031844.3	c.2263C>T	p.Arg755Cys	missense_variant	Exon 12 of 14	ENST00000640218.2	NP_114032.2
HNRNPU	NM_004501.3	c.2206C>T	p.Arg736Cys	missense_variant	Exon 12 of 14		NP_004492.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HNRNPU	ENST00000640218.2	c.2263C>T	p.Arg755Cys	missense_variant	Exon 12 of 14	1	NM_031844.3	ENSP00000491215.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461774 Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3 AN XY: 727206

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

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

Alfa AF: 0.0000740 Hom.: 0

Bravo AF: 0.00000756

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Developmental and epileptic encephalopathy, 54 Benign:1

Oct 17, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.85
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	-0.030
CADD	Pathogenic	33
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.32	.;T;.;.;.;.;.;.
Eigen	Pathogenic	0.71
Eigen_PC	Pathogenic	0.72
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Pathogenic	0.98	D;D;D;D;D;D;D;D
M_CAP	Benign	0.063	D
MetaRNN	Uncertain	0.53	D;D;D;D;D;D;D;D
MetaSVM	Benign	-0.69	T
MutationAssessor	Uncertain	2.2	.;M;.;.;.;.;.;.
PrimateAI	Uncertain	0.69	T
PROVEAN	Benign	-2.0	N;.;.;.;.;.;.;.
REVEL	Benign	0.17
Sift	Uncertain	0.0020	D;.;.;.;.;.;.;.
Sift4G	Uncertain	0.0040	D;.;.;.;.;.;.;.
Polyphen		1.0	D;D;.;.;.;.;.;.
Vest4		0.74
MVP		0.69
MPC		1.1
ClinPred		0.92	D
GERP RS		5.5
Varity_R		0.25
gMVP		0.91

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs934976347; hg19: chr1-245018815;