7-97858834-GTTT-GTTTTTT

Variant names:

• chr7-97858834-G-GTTT
• rs36021744
• NM_001673.5:c.775+17_775+19dupAAA

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP6_Moderate

The NM_001673.5(ASNS):​c.775+17_775+19dupAAA variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000592 in 1,587,200 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.000039 (0 hom., cov: 21)
  • Exomes 𝑓: 0.000061 (0 hom.)
• Consequence: ASNS NM_001673.5 intron
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.0440
• Publications: 2 publications found

Genes affected

ASNS (HGNC:753): (asparagine synthetase (glutamine-hydrolyzing)) The protein encoded by this gene is involved in the synthesis of asparagine. This gene complements a mutation in the temperature-sensitive hamster mutant ts11, which blocks progression through the G1 phase of the cell cycle at nonpermissive temperature. Alternatively spliced transcript variants have been described for this gene. [provided by RefSeq, May 2010]

ASNS Gene-Disease associations (from GenCC):

• congenital microcephaly - severe encephalopathy - progressive cerebral atrophy syndrome

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), ClinGen

ENSG00000284707 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP6: Variant 7-97858834-G-GTTT is Benign according to our data. Variant chr7-97858834-G-GTTT is described in ClinVar as Likely_benign. ClinVar VariationId is 1585732.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001673.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ASNS	NM_001673.5	MANE Select	c.775+17_775+19dupAAA		intron	N/A	NP_001664.3
	ASNS	NM_001352496.2		c.775+17_775+19dupAAA		intron	N/A	NP_001339425.1
	ASNS	NM_133436.3		c.775+17_775+19dupAAA		intron	N/A	NP_597680.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ASNS	ENST00000394308.8	TSL:1 MANE Select	c.775+19_775+20insAAA		intron	N/A	ENSP00000377845.3
	ASNS	ENST00000175506.8	TSL:1	c.775+19_775+20insAAA		intron	N/A	ENSP00000175506.4
	ASNS	ENST00000394309.7	TSL:2	c.775+19_775+20insAAA		intron	N/A	ENSP00000377846.3

Frequencies

GnomAD3 genomes AF: 0.0000395 AC: 6 AN: 151950 Hom.: 0 Cov.: 21

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: 0.0000947

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000735

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000427 AC: 10 AN: 233956 AF XY: 0.0000553

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000338

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000575

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000736

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000613 AC: 88 AN: 1435250 Hom.: 0 Cov.: 30 AF XY: 0.0000700 AC XY: 50 AN XY: 714364

African (AFR) AF: 0.00 AC: 0 AN: 32150

American (AMR) AF: 0.00 AC: 0 AN: 39340

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25240

East Asian (EAS) AF: 0.00 AC: 0 AN: 39472

South Asian (SAS) AF: 0.0000122 AC: 1 AN: 82132

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53104

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5612

European-Non Finnish (NFE) AF: 0.0000746 AC: 82 AN: 1098860

Other (OTH) AF: 0.0000843 AC: 5 AN: 59340

GnomAD4 genome AF: 0.0000395 AC: 6 AN: 151950 Hom.: 0 Cov.: 21 AF XY: 0.0000539 AC XY: 4 AN XY: 74208

African (AFR) AF: 0.00 AC: 0 AN: 41360

American (AMR) AF: 0.00 AC: 0 AN: 15268

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5172

South Asian (SAS) AF: 0.00 AC: 0 AN: 4816

European-Finnish (FIN) AF: 0.0000947 AC: 1 AN: 10562

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000735 AC: 5 AN: 67992

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

Alfa AF: 0.00 Hom.: 663

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Jan 20, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		-0.044

Splicing

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

Other links and lift over

dbSNP: rs36021744; hg19: chr7-97488146;