17-30117165-A-G

Position:

• chr17-30117165-A-G

Variant summary

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

The ENST00000247026.10(NSRP1):​c.20+302A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 31)
• Consequence: NSRP1 ENST00000247026.10 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.939

Genes affected

NSRP1 (HGNC:25305): (nuclear speckle splicing regulatory protein 1) Enables mRNA binding activity. Involved in developmental process and regulation of alternative mRNA splicing, via spliceosome. Located in nuclear speck. Part of ribonucleoprotein complex. [provided by Alliance of Genome Resources, Apr 2022]

MIR423 (HGNC:31880): (microRNA 423) microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop. [provided by RefSeq, Sep 2009]

hsa-mir-423 (HGNC:):

MIR3184 (HGNC:38182): (microRNA 3184) microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop. [provided by RefSeq, Sep 2009]

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 (BayesDel_noAF=-0.32).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NSRP1	NM_032141.4	c.20+302A>G		intron_variant		ENST00000247026.10	NP_115517.1
MIR423	NR_029945.1	n.87A>G		non_coding_transcript_exon_variant	1/1
MIR3184	NR_036149.1			upstream_gene_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NSRP1	ENST00000247026.10	c.20+302A>G		intron_variant		1	NM_032141.4	ENSP00000247026	P4
MIR423	ENST00000362201.2	n.87A>G		non_coding_transcript_exon_variant	1/1
hsa-mir-423	ENST00000586878.1	n.8T>C		non_coding_transcript_exon_variant	1/1
	ENST00000582938.1	n.106+227T>C		intron_variant, non_coding_transcript_variant		3
MIR3184	ENST00000637796.1			upstream_gene_variant

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 2

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.32
CADD	Benign	19
DANN	Benign	0.83
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0

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: rs6505162; hg19: chr17-28444183;