rs9989899

Positions:

• chr2-230249416-G-A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_007237.5(SP140):​c.976+448G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.159 in 152,110 control chromosomes in the GnomAD database, including 2,040 homozygotes. 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 0.16 (2040 hom., cov: 32)
• Consequence: SP140 NM_007237.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.537

Genes affected

SP140 (HGNC:17133): (SP140 nuclear body protein) This gene encodes a member of the SP100 family of proteins, which are share common domains including an N-terminal homogeneously staining region domain followed by a SP100/autoimmune regulator/NucP41/P75/deformed epidermal autoregulatory factor domain, a plant homeobox zinc finger, and a bromodomain. The encoded protein is interferon-inducible and is expressed at high levels in the nuclei of leukocytes. Variants of this gene have been associated with multiple sclerosis, Crohn's disease, and chronic lymphocytic leukemia. Alternative splicing results in multiple variants. [provided by RefSeq, Aug 2016]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.89).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.183 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SP140	NM_007237.5	c.976+448G>A		intron_variant		ENST00000392045.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SP140	ENST00000392045.8	c.976+448G>A		intron_variant		2	NM_007237.5	A2
SP140	ENST00000343805.10	c.898+448G>A		intron_variant		1		A2
SP140	ENST00000417495.7	c.817+448G>A		intron_variant		1		P2
SP140	ENST00000420434.7	c.976+448G>A		intron_variant		1		A2

Frequencies

GnomAD3 genomes AF: 0.159 AC: 24157 AN: 151992 Hom.: 2037 Cov.: 32

Gnomad AFR AF: 0.153

Gnomad AMI AF: 0.105

Gnomad AMR AF: 0.134

Gnomad ASJ AF: 0.178

Gnomad EAS AF: 0.000962

Gnomad SAS AF: 0.159

Gnomad FIN AF: 0.123

Gnomad MID AF: 0.215

Gnomad NFE AF: 0.185

Gnomad OTH AF: 0.163

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.159 AC: 24174 AN: 152110 Hom.: 2040 Cov.: 32 AF XY: 0.154 AC XY: 11457 AN XY: 74358

Gnomad4 AFR AF: 0.153

Gnomad4 AMR AF: 0.134

Gnomad4 ASJ AF: 0.178

Gnomad4 EAS AF: 0.000964

Gnomad4 SAS AF: 0.157

Gnomad4 FIN AF: 0.123

Gnomad4 NFE AF: 0.185

Gnomad4 OTH AF: 0.162

Alfa AF: 0.180 Hom.: 1276

Bravo AF: 0.156

Asia WGS AF: 0.0660 AC: 231 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.89
CADD	Benign	1.3
DANN	Benign	0.54

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

Publications

LitVar

Other links and lift over

dbSNP: rs9989899; hg19: chr2-231114131;