rs1555746859

Positions:

• chr19-7184641-G-GGA

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP6

The NM_000208.4(INSR):​c.653-5_653-4insTC variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency: Genomes: not found (cov: 27)
• Consequence: INSR NM_000208.4 splice_region, splice_polypyrimidine_tract, intron
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:1
• Conservation: PhyloP100: -0.176

Genes affected

INSR (HGNC:6091): (insulin receptor) This gene encodes a member of the receptor tyrosine kinase family of proteins. The encoded preproprotein is proteolytically processed to generate alpha and beta subunits that form a heterotetrameric receptor. Binding of insulin or other ligands to this receptor activates the insulin signaling pathway, which regulates glucose uptake and release, as well as the synthesis and storage of carbohydrates, lipids and protein. Mutations in this gene underlie the inherited severe insulin resistance syndromes including type A insulin resistance syndrome, Donohue syndrome and Rabson-Mendenhall syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2015]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP6: Variant 19-7184641-G-GGA is Benign according to our data. Variant chr19-7184641-G-GGA is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 435513.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
INSR	NM_000208.4	c.653-5_653-4insTC		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000302850.10
INSR	NM_001079817.3	c.653-5_653-4insTC		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant
INSR	XM_011527988.3	c.653-5_653-4insTC		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant
INSR	XM_011527989.4	c.653-5_653-4insTC		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
INSR	ENST00000302850.10	c.653-5_653-4insTC		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		1	NM_000208.4	A2
INSR	ENST00000341500.9	c.653-5_653-4insTC		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		1		P3
INSR	ENST00000598216.1	n.628-5_628-4insTC		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant, non_coding_transcript_variant		1

Frequencies

GnomAD3 genomes Cov.: 27

GnomAD4 exome Cov.: 17

GnomAD4 genome Cov.: 27

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:1

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Mar 11, 2015

- -

Rabson-Mendenhall syndrome Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center

Mar 26, 2024

- -

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: rs1555746859; hg19: chr19-7184652;