rs886058165

Variant names:

• chr3-167735753-A-AGAGCG
• rs886058165
• NM_001122752.2:c.-79_-75dupGGAGC

Variant summary

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

The NM_001122752.2(SERPINI1):​c.-79_-75dupGGAGC variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000197 in 152,348 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: 𝑓 0.000020 (0 hom., cov: 32)
• Consequence: SERPINI1 NM_001122752.2 5_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.24

Genes affected

SERPINI1 (HGNC:8943): (serpin family I member 1) This gene encodes a member of the serpin superfamily of serine proteinase inhibitors. The protein is primarily secreted by axons in the brain, and preferentially reacts with and inhibits tissue-type plasminogen activator. It is thought to play a role in the regulation of axonal growth and the development of synaptic plasticity. Mutations in this gene result in familial encephalopathy with neuroserpin inclusion bodies (FENIB), which is a dominantly inherited form of familial encephalopathy and epilepsy characterized by the accumulation of mutant neuroserpin polymers. Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SERPINI1	NM_001122752.2	c.-79_-75dupGGAGC		5_prime_UTR_variant	Exon 1 of 9	ENST00000446050.7	NP_001116224.1
SERPINI1	NM_005025.5	c.-391_-387dupGGAGC		5_prime_UTR_variant	Exon 1 of 9		NP_005016.1
SERPINI1	XM_017006618.3	c.-68_-64dupGGAGC		5_prime_UTR_variant	Exon 1 of 9		XP_016862107.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SERPINI1	ENST00000446050	c.-79_-75dupGGAGC		5_prime_UTR_variant	Exon 1 of 9	1	NM_001122752.2	ENSP00000397373.2
SERPINI1	ENST00000295777	c.-391_-387dupGGAGC		5_prime_UTR_variant	Exon 1 of 9	1		ENSP00000295777.5
SERPINI1	ENST00000472747	c.-68_-64dupGGAGC		5_prime_UTR_variant	Exon 1 of 5	3		ENSP00000420561.2
SERPINI1	ENST00000472941.5	c.-19+438_-19+442dupGGAGC		intron_variant	Intron 1 of 2	3		ENSP00000420133.1

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152230 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: 0.000386

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.0000941

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 0

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152348 Hom.: 0 Cov.: 32 AF XY: 0.0000268 AC XY: 2 AN XY: 74496

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000387

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.0000941

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Familial encephalopathy with neuroserpin inclusion bodies Uncertain:1

Jun 14, 2016

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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Computational scores

Source: dbNSFP v4.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs886058165; hg19: chr3-167453541;