chr11-118581502-C-A

Variant names:

• chr11-118581502-C-A
• rs886040859
• NM_001655.5:c.260C>A

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PVS1 PM2 PP5

The NM_001655.5(ARCN1):​c.260C>A​(p.Ser87*) variant causes a stop gained change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,676 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: ARCN1 NM_001655.5 stop_gained
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 7.51

Genes affected

ARCN1 (HGNC:649): (archain 1) This gene maps in a region, which include the mixed lineage leukemia and Friend leukemia virus integration 1 genes, where multiple disease-associated chromosome translocations occur. It is an intracellular protein. Archain sequences are well conserved among eukaryotes and this protein may play a fundamental role in eukaryotic cell biology. It has similarities to heat shock proteins and clathrin-associated proteins, and may be involved in vesicle structure or trafficking. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Pathogenic. Variant got 11 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 11-118581502-C-A is Pathogenic according to our data. Variant chr11-118581502-C-A is described in ClinVar as [Pathogenic]. Clinvar id is 267209.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ARCN1	NM_001655.5	c.260C>A	p.Ser87*	stop_gained	Exon 2 of 10	ENST00000264028.5	NP_001646.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ARCN1	ENST00000264028.5	c.260C>A	p.Ser87*	stop_gained	Exon 2 of 10	1	NM_001655.5	ENSP00000264028.4
ARCN1	ENST00000359415.8	c.383C>A	p.Ser128*	stop_gained	Exon 3 of 11	1		ENSP00000352385.4
ARCN1	ENST00000392859.7	c.4-1677C>A		intron_variant	Intron 1 of 8	2		ENSP00000376599.3
ARCN1	ENST00000534182.2	c.159+101C>A		intron_variant	Intron 2 of 2	5		ENSP00000431676.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1459676 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 725934

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Short stature, rhizomelic, with microcephaly, micrognathia, and developmental delay Pathogenic:1

Sep 06, 2022

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.63	D
BayesDel_noAF	Pathogenic	0.65
CADD	Pathogenic	38
DANN	Uncertain	0.99
Eigen	Pathogenic	0.95
Eigen_PC	Pathogenic	0.83
FATHMM_MKL	Pathogenic	0.99	D
Vest4		0.61
GERP RS		5.3

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs886040859; hg19: chr11-118452217; COSMIC: COSV99873454;