NM_006185.4:c.6242G>A

Variant names:

• chr11-72003981-C-T
• rs764194061
• NM_006185.4:c.6242G>A

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_Moderate BS2

The NM_006185.4(NUMA1):​c.6242G>A​(p.Arg2081His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000411 in 1,460,730 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000041 (0 hom.)
• Consequence: NUMA1 NM_006185.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.51
• Publications: 1 publications found

Genes affected

NUMA1 (HGNC:8059): (nuclear mitotic apparatus protein 1) This gene encodes a large protein that forms a structural component of the nuclear matrix. The encoded protein interacts with microtubules and plays a role in the formation and organization of the mitotic spindle during cell division. Chromosomal translocation of this gene with the RARA (retinoic acid receptor, alpha) gene on chromosome 17 have been detected in patients with acute promyelocytic leukemia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2013]

IL18BP (HGNC:5987): (interleukin 18 binding protein) The protein encoded by this gene functions as an inhibitor of the proinflammatory cytokine, IL18. It binds IL18, prevents the binding of IL18 to its receptor, and thus inhibits IL18-induced IFN-gamma production, resulting in reduced T-helper type 1 immune responses. This protein is constitutively expressed and secreted in mononuclear cells. Elevated level of this protein is detected in the intestinal tissues of patients with Crohn's disease. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Feb 2011]

IL18BP Gene-Disease associations (from GenCC):

• hepatitis, fulminant viral, susceptibility to

  Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.2413491).
• BS2: High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NUMA1	NM_006185.4	c.6242G>A	p.Arg2081His	missense_variant	Exon 26 of 27	ENST00000393695.8	NP_006176.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NUMA1	ENST00000393695.8	c.6242G>A	p.Arg2081His	missense_variant	Exon 26 of 27	1	NM_006185.4	ENSP00000377298.4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.00000800 AC: 2 AN: 249982 AF XY: 0.00000740

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000545

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000884

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000411 AC: 6 AN: 1460730 Hom.: 0 Cov.: 33 AF XY: 0.00000275 AC XY: 2 AN XY: 726656

African (AFR) AF: 0.00 AC: 0 AN: 33444

American (AMR) AF: 0.00 AC: 0 AN: 44544

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26072

East Asian (EAS) AF: 0.0000756 AC: 3 AN: 39692

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86180

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53196

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5742

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111512

Other (OTH) AF: 0.00 AC: 0 AN: 60348

GnomAD4 genome Cov.: 33

ExAC AF: 0.00000824 AC: 1

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

May 18, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.6242G>A (p.R2081H) alteration is located in exon 26 (coding exon 24) of the NUMA1 gene. This alteration results from a G to A substitution at nucleotide position 6242, causing the arginine (R) at amino acid position 2081 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.18	T
BayesDel_noAF	Benign	-0.33
CADD	Uncertain	24
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.13	.;.;T;.;.;.
Eigen	Uncertain	0.41
Eigen_PC	Uncertain	0.43
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Benign	0.82	.;.;T;T;T;T
M_CAP	Benign	0.016	T
MetaRNN	Benign	0.24	T;T;T;T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.3	.;.;M;.;.;.
PhyloP100		2.5
PrimateAI	Benign	0.42	T
PROVEAN	Benign	-1.9	N;N;N;.;.;.
REVEL	Benign	0.12
Sift	Uncertain	0.0040	D;D;D;.;.;.
Sift4G	Uncertain	0.018	D;D;D;D;D;D
Polyphen		1.0, 0.97	.;D;D;D;.;.
Vest4		0.32
MutPred		0.43		.;.;Loss of methylation at R2081 (P = 0.0463);.;.;.;
MVP		0.38
MPC		0.36
ClinPred		0.81	D
GERP RS		4.9
Varity_R		0.16
gMVP		0.21
Mutation Taster		=66/34	polymorphism

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: rs764194061; hg19: chr11-71715027; COSMIC: COSV52621212; COSMIC: COSV52621212;