2-121367825-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 1P and 3B. PP2BP4_ModerateBS2_Supporting

The NM_001395891.1(CLASP1):​c.3712C>T​(p.Arg1238Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000149 in 1,612,878 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: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

CLASP1
NM_001395891.1 missense

Scores

6
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.60
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), CLASP1. . Gene score misZ 3.6133 (greater than the threshold 3.09). GenCC has associacion of gene with complex neurodevelopmental disorder.
BP4
Computational evidence support a benign effect (MetaRNN=0.21065167).
BS2
High AC in GnomAdExome4 at 23 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CLASP1NM_001395891.1 linkuse as main transcriptc.3712C>T p.Arg1238Cys missense_variant 36/41 ENST00000696935.1 NP_001382820.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CLASP1ENST00000696935.1 linkuse as main transcriptc.3712C>T p.Arg1238Cys missense_variant 36/41 NM_001395891.1 ENSP00000512981 A2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152170
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000242
AC:
6
AN:
247624
Hom.:
0
AF XY:
0.0000223
AC XY:
3
AN XY:
134500
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000356
Gnomad OTH exome
AF:
0.000166
GnomAD4 exome
AF:
0.0000157
AC:
23
AN:
1460708
Hom.:
0
Cov.:
32
AF XY:
0.0000151
AC XY:
11
AN XY:
726708
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000101
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000117
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152170
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74334
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000667
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000331
AC:
4

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMar 21, 2024The c.3649C>T (p.R1217C) alteration is located in exon 35 (coding exon 34) of the CLASP1 gene. This alteration results from a C to T substitution at nucleotide position 3649, causing the arginine (R) at amino acid position 1217 to be replaced by a cysteine (C). 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
0.24
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.33
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Benign
0.11
T;.;.;T;.;.
Eigen
Benign
0.051
Eigen_PC
Uncertain
0.24
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.95
.;D;D;D;D;D
M_CAP
Benign
0.0063
T
MetaRNN
Benign
0.21
T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.76
N;.;.;N;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Uncertain
0.67
T
PROVEAN
Uncertain
-2.6
.;D;.;D;D;.
REVEL
Benign
0.13
Sift
Benign
0.12
.;T;.;T;T;.
Sift4G
Benign
0.12
.;T;T;T;T;T
Polyphen
0.012
B;.;.;B;.;.
Vest4
0.55, 0.60, 0.69, 0.59, 0.60
MVP
0.54
MPC
0.54
ClinPred
0.46
T
GERP RS
5.8
RBP_binding_hub_radar
1.0
RBP_regulation_power_radar
2.1
Varity_R
0.11
gMVP
0.41

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs770007213; hg19: chr2-122125401; API