Genetic Variant CLASP1:c.196-548G>C (chr2-121530873-C-G) – ACMG Classification: Benign (-10 pts)

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6BS1BS2_Supporting

The NM_001395891.1(CLASP1):c.196-548G>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000572 in 683,854 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 Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00042 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00062 ( 0 hom. )

Consequence

CLASP1
NM_001395891.1 intron

Scores

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -8.44

Publications

0 publications found

Variant links:

Genes affected

CLASP1 (HGNC:17088): (cytoplasmic linker associated protein 1) CLASPs, such as CLASP1, are nonmotor microtubule-associated proteins that interact with CLIPs (e.g., CLIP170; MIM 179838). CLASP1 is involved in the regulation of microtubule dynamics at the kinetochore and throughout the spindle (Maiato et al., 2003 [PubMed 12837247]).[supplied by OMIM, Mar 2008]

CLASP1 links:

CLASP1-AS1 (HGNC:55328): (CLASP1 antisense RNA 1)

CLASP1-AS1 links:

RNU4ATAC (HGNC:34016): (RNA, U4atac small nuclear) The small nuclear RNA (snRNA) encoded by this gene is part of the U12-dependent minor spliceosome complex. In addition to the encoded RNA, this ribonucleoprotein complex consists of U11, U12, U5, and U6atac snRNAs. The U12-dependent spliceosome acts on approximately 700 specific introns in the human genome. Defects in this gene are a cause of microcephalic osteodysplastic primordial dwarfism type 1 (MOPD). [provided by RefSeq, Jul 2011]

RNU4ATAC Gene-Disease associations (from GenCC):

microcephalic osteodysplastic primordial dwarfism type I
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
RNU4ATAC spectrum disorder
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: ClinGen, PanelApp Australia, Broad Center for Mendelian Genomics, Ambry Genetics
Roifman syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Illumina, Ambry Genetics, Labcorp Genetics (formerly Invitae)
Lowry-Wood syndrome
Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

RNU4ATAC 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=-0.9).

BP6

Variant 2-121530873-C-G is Benign according to our data. Variant chr2-121530873-C-G is described in ClinVar as Likely_benign. ClinVar VariationId is 3058046.Status of the report is no_assertion_criteria_provided, 0 stars.

BS1

Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.000615 (327/531562) while in subpopulation MID AF = 0.00294 (7/2384). AF 95% confidence interval is 0.00138. There are 0 homozygotes in GnomAdExome4. There are 192 alleles in the male GnomAdExome4 subpopulation. Median coverage is 0. This position passed quality control check.

BS2

High AC in GnomAd4 at 64 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001395891.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
CLASP1	NM_001395891.1	MANE Select	c.196-548G>C	intron	N/A	NP_001382820.1	A0A8V8TLP7
CLASP1	NM_015282.3		c.196-548G>C	intron	N/A	NP_056097.1	Q7Z460-1
CLASP1	NM_001378003.1		c.196-548G>C	intron	N/A	NP_001364932.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
CLASP1	ENST00000696935.1	MANE Select	c.196-548G>C	intron	N/A	ENSP00000512981.1	A0A8V8TLP7
CLASP1	ENST00000263710.8	TSL:5	c.196-548G>C	intron	N/A	ENSP00000263710.4	Q7Z460-1
CLASP1	ENST00000961911.1		c.196-548G>C	intron	N/A	ENSP00000631970.1

Frequencies

GnomAD3 genomes

AF:

0.000421

AC:

AN:

152174

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

Gnomad ASJ

AF:

0.00749

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000397

Gnomad OTH

AF:

0.00191

GnomAD2 exomes

AF:

0.000907

AC:

116

AN:

127886

AF XY:

0.000958

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000637

Gnomad ASJ exome

AF:

0.00781

Gnomad EAS exome

AF:

0.000291

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000430

Gnomad OTH exome

AF:

0.00102

GnomAD4 exome

AF:

0.000615

AC:

327

AN:

531562

Hom.:

Cov.:

AF XY:

0.000673

AC XY:

192

AN XY:

285414

show subpopulations

African (AFR)

AF:

0.0000653

AC:

AN:

15322

American (AMR)

AF:

0.000623

AC:

AN:

33686

Ashkenazi Jewish (ASJ)

AF:

0.00730

AC:

144

AN:

19722

East Asian (EAS)

AF:

0.000315

AC:

AN:

31700

South Asian (SAS)

AF:

0.000436

AC:

AN:

61938

European-Finnish (FIN)

AF:

0.00

AC:

AN:

33030

Middle Eastern (MID)

AF:

0.00294

AC:

AN:

2384

European-Non Finnish (NFE)

AF:

0.000260

AC:

AN:

304208

Other (OTH)

AF:

0.00128

AC:

AN:

29572

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.522

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.000420

AC:

AN:

152292

Hom.:

Cov.:

AF XY:

0.000416

AC XY:

AN XY:

74456

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41564

American (AMR)

AF:

0.000196

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00749

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.000414

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000397

AC:

AN:

68024

Other (OTH)

AF:

0.00189

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

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:

0.000727

Hom.:

Bravo

AF:

0.000457

ClinVar

ClinVar submissions

Significance:Likely benign

Revision:no assertion criteria provided

View on ClinVar

Pathogenic

VUS

Benign

Condition

CLASP1-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.90

CADD

Benign

0.0010

(source)

DANN

Benign

0.47

PhyloP100

-8.4

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over