Variant 6-7601371-A-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_152551.4(SNRNP48):c.442A>C(p.Asn148His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000254 in 1,576,444 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SNRNP48
NM_152551.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.93

Variant links:

Genes affected

SNRNP48 (HGNC:21368): (small nuclear ribonucleoprotein U11/U12 subunit 48) Predicted to enable metal ion binding activity. Predicted to be involved in RNA splicing. Located in cytosol and nucleoplasm. Part of U12-type spliceosomal complex. [provided by Alliance of Genome Resources, Apr 2022]

SNRNP48 links:

SNRNP48 (HGNC:):

SNRNP48 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.875

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SNRNP48	NM_152551.4 linkuse as main transcript	c.442A>C	p.Asn148His	missense_variant	5/9	ENST00000342415.6	NP_689764.3	Q6IEG0-1
SNRNP48	XM_011514312.4 linkuse as main transcript	c.379A>C	p.Asn127His	missense_variant	5/9		XP_011512614.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
SNRNP48	ENST00000342415.6 linkuse as main transcript	c.442A>C	p.Asn148His	missense_variant	5/9	1	NM_152551.4	ENSP00000339834.4	Q6IEG0-1
SNRNP48	ENST00000496946.1 linkuse as main transcript	n.1699A>C		non_coding_transcript_exon_variant	1/5	2
SNRNP48	ENST00000634363.1 linkuse as main transcript	n.450A>C		non_coding_transcript_exon_variant	6/8	2		ENSP00000489245.1	A0A0U1RQZ2

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152180

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000140

AC:

AN:

1424264

Hom.:

Cov.:

AF XY:

0.00000141

AC XY:

AN XY:

708148

show subpopulations

Gnomad4 AFR exome

AF:

0.0000325

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:

0.00

Gnomad4 OTH exome

AF:

0.0000170

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152180

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74340

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000264

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 30, 2024

The c.442A>C (p.N148H) alteration is located in exon 5 (coding exon 5) of the SNRNP48 gene. This alteration results from a A to C substitution at nucleotide position 442, causing the asparagine (N) at amino acid position 148 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.47

BayesDel_addAF

Uncertain

0.016

BayesDel_noAF

Benign

-0.22

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.25

Eigen

Pathogenic

0.71

Eigen_PC

Pathogenic

0.67

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.87

M_CAP

Benign

0.036

MetaRNN

Pathogenic

0.88

MetaSVM

Benign

-0.80

MutationAssessor

Uncertain

2.8

PrimateAI

Uncertain

0.59

PROVEAN

Uncertain

-2.8

REVEL

Uncertain

0.39

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.012

Polyphen

1.0

Vest4

0.84

MutPred

0.74

Gain of methylation at K150 (P = 0.11);

MVP

0.62

MPC

0.57

ClinPred

0.98

GERP RS

4.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.46

gMVP

0.67

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over