3-23916438-A-T

Variant names:

• chr3-23916438-A-T
• rs2360610
• NM_020345.4:c.-140+346T>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_020345.4(NKIRAS1):​c.-140+346T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000132 in 152,072 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: 𝑓 0.000013 (0 hom., cov: 33)
• Consequence: NKIRAS1 NM_020345.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.881
• Publications: 11 publications found

Genes affected

NKIRAS1 (HGNC:17899): (NFKB inhibitor interacting Ras like 1) Predicted to enable GTPase activating protein binding activity. Predicted to be involved in I-kappaB kinase/NF-kappaB signaling. Predicted to act upstream of or within several processes, including Ral protein signal transduction; lung alveolus development; and surfactant homeostasis. Located in cytosol and endoplasmic reticulum. [provided by Alliance of Genome Resources, Apr 2022]

RPL15 (HGNC:10306): (ribosomal protein L15) Ribosomes, the organelles that catalyze protein synthesis, consist of a small 40S subunit and a large 60S subunit. Together these subunits are composed of four RNA species and approximately 80 structurally distinct proteins. This gene encodes a member of the L15E family of ribosomal proteins and a component of the 60S subunit. This gene shares sequence similarity with the yeast ribosomal protein YL10 gene. Elevated expression of this gene has been observed in esophageal tumors and gastric cancer tissues, and deletion of this gene has been observed in a Diamond-Blackfan anemia (DBA) patient. As is typical for genes encoding ribosomal proteins, there are multiple processed pseudogenes of this gene dispersed through the genome. [provided by RefSeq, Mar 2017]

RPL15 Gene-Disease associations (from GenCC):

• Diamond-Blackfan anemia 12

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia
• Diamond-Blackfan anemia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.78).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020345.4. 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
	NKIRAS1	NM_020345.4	MANE Select	c.-140+346T>A		intron	N/A	NP_065078.1
	NKIRAS1	NM_001377351.1		c.-18+346T>A		intron	N/A	NP_001364280.1
	NKIRAS1	NM_001377352.1		c.-140+427T>A		intron	N/A	NP_001364281.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NKIRAS1	ENST00000425478.7	TSL:1 MANE Select	c.-140+346T>A		intron	N/A	ENSP00000400385.2
	NKIRAS1	ENST00000443659.6	TSL:5	c.-501T>A		5_prime_UTR	Exon 1 of 4	ENSP00000393785.2
	NKIRAS1	ENST00000388759.7	TSL:3	c.-136+346T>A		intron	N/A	ENSP00000373411.3

Frequencies

GnomAD3 genomes AF: 0.0000132 AC: 2 AN: 152072 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000387

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 0

GnomAD4 genome AF: 0.0000132 AC: 2 AN: 152072 Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1 AN XY: 74274

African (AFR) AF: 0.00 AC: 0 AN: 41414

American (AMR) AF: 0.00 AC: 0 AN: 15290

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.000387 AC: 2 AN: 5174

South Asian (SAS) AF: 0.00 AC: 0 AN: 4834

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10572

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67998

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.00 Hom.: 29391

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.78
CADD	Benign	8.1
DANN	Benign	0.71
PhyloP100		0.88
PromoterAI		-0.018	Neutral

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

Other links and lift over

dbSNP: rs2360610; hg19: chr3-23957929;