1-35738457-T-A

Variant names:

• chr1-35738457-T-A
• rs372707961
• NM_022111.4:c.3556A>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_022111.4(CLSPN):​c.3556A>T​(p.Met1186Leu) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000186 in 1,613,706 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/24 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M1186V) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 31)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: CLSPN NM_022111.4 missense, splice_region
• Scores: Splicing: ADA: 0.9527
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.68
• Publications: 0 publications found

Genes affected

CLSPN (HGNC:19715): (claspin) The product of this gene is an essential upstream regulator of checkpoint kinase 1 and triggers a checkpoint arrest of the cell cycle in response to replicative stress or DNA damage. The protein is also required for efficient DNA replication during a normal S phase. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jun 2010]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.12023279).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_022111.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CLSPN	NM_022111.4	MANE Select	c.3556A>T	p.Met1186Leu	missense splice_region	Exon 21 of 25	NP_071394.2
	CLSPN	NM_001330490.2		c.3556A>T	p.Met1186Leu	missense splice_region	Exon 21 of 25	NP_001317419.1	Q9HAW4-3
	CLSPN	NM_001190481.2		c.3364A>T	p.Met1122Leu	missense splice_region	Exon 20 of 24	NP_001177410.1	Q9HAW4-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CLSPN	ENST00000318121.8	TSL:1 MANE Select	c.3556A>T	p.Met1186Leu	missense splice_region	Exon 21 of 25	ENSP00000312995.3	Q9HAW4-1
	CLSPN	ENST00000251195.9	TSL:1	c.3556A>T	p.Met1186Leu	missense splice_region	Exon 21 of 25	ENSP00000251195.5	Q9HAW4-3
	CLSPN	ENST00000520551.1	TSL:1	c.3397A>T	p.Met1133Leu	missense splice_region	Exon 21 of 25	ENSP00000428848.1	E7ESG2

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152184 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000192

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461522 Hom.: 0 Cov.: 30 AF XY: 0.00000275 AC XY: 2 AN XY: 727102

African (AFR) AF: 0.00 AC: 0 AN: 33472

American (AMR) AF: 0.00 AC: 0 AN: 44708

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26120

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39692

South Asian (SAS) AF: 0.00 AC: 0 AN: 86242

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53404

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5760

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111756

Other (OTH) AF: 0.0000166 AC: 1 AN: 60368

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152184 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 74348

African (AFR) AF: 0.00 AC: 0 AN: 41436

American (AMR) AF: 0.00 AC: 0 AN: 15262

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.000192 AC: 1 AN: 5202

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10624

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68038

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.17
BayesDel_addAF	Benign	-0.21	T
BayesDel_noAF	Benign	-0.54
CADD	Benign	23
DANN	Benign	0.95
DEOGEN2	Benign	0.019	T
Eigen	Benign	-0.30
Eigen_PC	Benign	-0.059
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Benign	0.75	T
M_CAP	Benign	0.0099	T
MetaRNN	Benign	0.12	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.55	N
PhyloP100		5.7
PrimateAI	Benign	0.30	T
PROVEAN	Benign	-0.90	N
REVEL	Benign	0.068
Sift	Benign	0.12	T
Sift4G	Benign	0.30	T
Polyphen		0.012	B
Vest4		0.27
MutPred		0.23		Loss of methylation at K1191 (P = 0.0627)
MVP		0.14
MPC		0.079
ClinPred		0.74	D
GERP RS		5.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.11
gMVP		0.088
Mutation Taster		=65/35	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.95
dbscSNV1_RF	Benign	0.63
SpliceAI score (max)		0.010		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: rs372707961; hg19: chr1-36204058;