chr1-244855583-A-G

Variant names:

• chr1-244855583-A-G
• rs372228779
• NM_031844.3:c.2193T>C

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BS1 BS2

The NM_031844.3(HNRNPU):​c.2193T>C​(p.Asn731Asn) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000335 in 1,613,490 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000036 (1 hom.)
• Consequence: HNRNPU NM_031844.3 synonymous
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7
• Conservation: PhyloP100: 0.0200
• Publications: 0 publications found

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 Gene-Disease associations (from GenCC):

• complex neurodevelopmental disorder

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• developmental and epileptic encephalopathy, 54

  Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P

ACMG classification

Our verdict: Benign. The variant received -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.57).
• BP6: Variant 1-244855583-A-G is Benign according to our data. Variant chr1-244855583-A-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 414100.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=0.02 with no splicing effect.
• BS1: Variant frequency is greater than expected in population eas. GnomAdExome4 allele frequency = 0.0000363 (53/1461744) while in subpopulation EAS AF = 0.000554 (22/39696). AF 95% confidence interval is 0.000375. There are 1 homozygotes in GnomAdExome4. There are 27 alleles in the male GnomAdExome4 subpopulation. Median coverage is 31. This position passed quality control check.
• BS2: High AC in GnomAdExome4 at 53 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_031844.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HNRNPU	NM_031844.3	MANE Select	c.2193T>C	p.Asn731Asn	synonymous	Exon 12 of 14	NP_114032.2	Q00839-1
	HNRNPU	NM_004501.3		c.2136T>C	p.Asn712Asn	synonymous	Exon 12 of 14	NP_004492.2	Q00839-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HNRNPU	ENST00000640218.2	TSL:1 MANE Select	c.2193T>C	p.Asn731Asn	synonymous	Exon 12 of 14	ENSP00000491215.1	Q00839-1
	HNRNPU	ENST00000444376.7	TSL:1	c.2136T>C	p.Asn712Asn	synonymous	Exon 12 of 14	ENSP00000393151.2	Q00839-2
	HNRNPU	ENST00000639628.2	TSL:1	c.1365T>C	p.Asn455Asn	synonymous	Exon 9 of 11	ENSP00000491340.1	A0A1W2PPH7

Frequencies

GnomAD3 genomes AF: 0.00000659 AC: 1 AN: 151746 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000995 AC: 25 AN: 251162 AF XY: 0.0000884

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00114

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.000326

GnomAD4 exome AF: 0.0000363 AC: 53 AN: 1461744 Hom.: 1 Cov.: 31 AF XY: 0.0000371 AC XY: 27 AN XY: 727178

African (AFR) AF: 0.00 AC: 0 AN: 33462

American (AMR) AF: 0.0000224 AC: 1 AN: 44702

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.000554 AC: 22 AN: 39696

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53414

Middle Eastern (MID) AF: 0.000173 AC: 1 AN: 5766

European-Non Finnish (NFE) AF: 0.00000360 AC: 4 AN: 1111924

Other (OTH) AF: 0.000414 AC: 25 AN: 60392

GnomAD4 genome AF: 0.00000659 AC: 1 AN: 151746 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74140

African (AFR) AF: 0.00 AC: 0 AN: 41288

American (AMR) AF: 0.00 AC: 0 AN: 15264

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3464

East Asian (EAS) AF: 0.00 AC: 0 AN: 5130

South Asian (SAS) AF: 0.00 AC: 0 AN: 4796

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10582

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 310

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 67914

Other (OTH) AF: 0.00 AC: 0 AN: 2088

Alfa AF: 0.0000868 Hom.: 0

Bravo AF: 0.0000529

Asia WGS AF: 0.00318 AC: 11 AN: 3478

ClinVar

ClinVar submissions

Significance: Benign/Likely benign

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	-	4	not provided (4)
-	-	1	Developmental and epileptic encephalopathy, 54 (1)
-	-	1	HNRNPU-related disorder (1)
-	-	1	Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.57
CADD	Benign	1.5
DANN	Benign	0.55
PhyloP100		0.020
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Mutation Taster		=100/0	polymorphism

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: rs372228779; hg19: chr1-245018885;