chr2-121530927-G-A

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 8P and 2B. PP5_Very_StrongBP4BS2_Supporting

The NM_001395891.1(CLASP1):c.196-602C>T variant causes a intron change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000101 in 699,952 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 pathogenic (★★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

CLASP1
NM_001395891.1 intron

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:8U:1

Conservation

PhyloP100: 9.43

Publications

3 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:

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 links:

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

CLASP1-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PP5

Variant 2-121530927-G-A is Pathogenic according to our data. Variant chr2-121530927-G-A is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 218085.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.24). . Strength limited to SUPPORTING due to the PP5.

BS2

High AC in GnomAd4 at 8 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.196-602C>T	intron	N/A	NP_001382820.1	A0A8V8TLP7
RNU4ATAC	NR_023343.3	MANE Select	n.48G>A	non_coding_transcript_exon	Exon 1 of 1
CLASP1	NM_015282.3		c.196-602C>T	intron	N/A	NP_056097.1	Q7Z460-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
CLASP1	ENST00000696935.1	MANE Select	c.196-602C>T	intron	N/A	ENSP00000512981.1	A0A8V8TLP7
RNU4ATAC	ENST00000580972.2	TSL:6 MANE Select	n.48G>A	non_coding_transcript_exon	Exon 1 of 1
CLASP1	ENST00000263710.8	TSL:5	c.196-602C>T	intron	N/A	ENSP00000263710.4	Q7Z460-1

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.0000943

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000460

AC:

AN:

130500

AF XY:

0.0000421

show subpopulations

Gnomad AFR exome

AF:

0.000164

Gnomad AMR exome

AF:

0.0000411

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000603

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000115

AC:

AN:

547650

Hom.:

Cov.:

AF XY:

0.000135

AC XY:

AN XY:

296500

show subpopulations

African (AFR)

AF:

0.0000636

AC:

AN:

15728

American (AMR)

AF:

0.0000288

AC:

AN:

34702

Ashkenazi Jewish (ASJ)

AF:

0.0000500

AC:

AN:

20016

East Asian (EAS)

AF:

0.0000312

AC:

AN:

32094

South Asian (SAS)

AF:

0.0000798

AC:

AN:

62662

European-Finnish (FIN)

AF:

0.00

AC:

AN:

33194

Middle Eastern (MID)

AF:

0.00

AC:

AN:

2440

European-Non Finnish (NFE)

AF:

0.000164

AC:

AN:

316418

Other (OTH)

AF:

0.0000658

AC:

AN:

30396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.482

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:

0.0000525

AC:

AN:

152302

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74476

show subpopulations

African (AFR)

AF:

0.0000722

AC:

AN:

41556

American (AMR)

AF:

0.0000653

AC:

AN:

15310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.000207

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.0000943

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68034

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

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:

0.00

Hom.:

Bravo

AF:

0.0000680

ClinVar

ClinVar submissions

Significance:Pathogenic/Likely pathogenic

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

Roifman syndrome (2)

Lowry-Wood syndrome (1)

Lowry-Wood syndrome;C1846059:Roifman syndrome;C1859452:Osteodysplastic primordial dwarfism, type 1 (1)

Osteodysplastic primordial dwarfism, type 1 (1)

RNU4ATAC-related spliceosomopathies (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.24

CADD

Benign

(source)

DANN

Benign

0.94

PhyloP100

9.4

Mutation Taster

=6/94

disease causing (ClinVar)

(source)

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

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