Genetic Variant UNC93B1:c.1090-6C>A (chr11-67995890-G-T) – ACMG Classification: Benign (-10 pts)

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS1

The NM_030930.4(UNC93B1):c.1090-6C>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000242 in 1,489,152 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 29)

Exomes 𝑓: 0.00023 ( 0 hom. )

Consequence

UNC93B1
NM_030930.4 splice_region, intron

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.45

Publications

0 publications found

Variant links:

Genes affected

UNC93B1 (HGNC:13481): (unc-93 homolog B1, TLR signaling regulator) This gene encodes a protein that is involved in innate and adaptive immune response by regulating toll-like receptor signaling. The encoded protein traffics nucleotide sensing toll-like receptors to the endolysosome from the endoplasmic reticulum. Deficiency of the encoded protein has been associated with herpes simplex encephalitis. [provided by RefSeq, Feb 2014]

UNC93B1 Gene-Disease associations (from GenCC):

herpes simplex encephalitis, susceptibility to, 1
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

UNC93B1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.85).

BP6

Variant 11-67995890-G-T is Benign according to our data. Variant chr11-67995890-G-T is described in ClinVar as Likely_benign. ClinVar VariationId is 537937.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000323 (49/151934) while in subpopulation AMR AF = 0.0019 (29/15300). AF 95% confidence interval is 0.00136. There are 0 homozygotes in GnomAd4. There are 34 alleles in the male GnomAd4 subpopulation. Median coverage is 29. This position passed quality control check.

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	Exon rank	MANE	Protein	UniProt
UNC93B1	NM_030930.4 link	c.1090-6C>A	splice_region_variant, intron_variant	Intron 8 of 10	ENST00000227471.7	NP_112192.2	Q9H1C4
UNC93B1	XM_011545290.1 link	c.679-6C>A	splice_region_variant, intron_variant	Intron 6 of 8		XP_011543592.1
UNC93B1	XM_011545291.3 link	c.535-6C>A	splice_region_variant, intron_variant	Intron 5 of 7		XP_011543593.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
UNC93B1	ENST00000227471.7 link	c.1090-6C>A		splice_region_variant, intron_variant	Intron 8 of 10	1	NM_030930.4	ENSP00000227471.3		Q9H1C4
UNC93B1	ENST00000525368.1 link	n.91C>A		non_coding_transcript_exon_variant	Exon 1 of 3	2

Frequencies

GnomAD3 genomes

AF:

0.000323

AC:

AN:

151818

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00190

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000295

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000209

AC:

AN:

95710

AF XY:

0.000256

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000660

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000219

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000233

AC:

311

AN:

1337218

Hom.:

Cov.:

AF XY:

0.000189

AC XY:

124

AN XY:

654732

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

29998

American (AMR)

AF:

0.000405

AC:

AN:

29620

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

21696

East Asian (EAS)

AF:

0.00

AC:

AN:

35398

South Asian (SAS)

AF:

0.00

AC:

AN:

72078

European-Finnish (FIN)

AF:

0.00

AC:

AN:

35396

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3800

European-Non Finnish (NFE)

AF:

0.000265

AC:

279

AN:

1053658

Other (OTH)

AF:

0.000360

AC:

AN:

55574

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.439

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000323

AC:

AN:

151934

Hom.:

Cov.:

AF XY:

0.000458

AC XY:

AN XY:

74264

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41454

American (AMR)

AF:

0.00190

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5086

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10600

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000295

AC:

AN:

67882

Other (OTH)

AF:

0.00

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.489

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000131

Hom.:

Bravo

AF:

0.000238

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Herpes simplex encephalitis, susceptibility to, 1

Benign:1

Jan 23, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.85

CADD

Benign

8.1

(source)

DANN

Benign

0.87

PhyloP100

1.4

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over