1-35737403-A-G

Variant names:

• chr1-35737403-A-G
• rs879216434
• NM_022111.4:c.3683T>C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_022111.4(CLSPN):​c.3683T>C​(p.Ile1228Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,613,902 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000034 (0 hom.)
• Consequence: CLSPN NM_022111.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.282
• 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: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.028869092).

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.3683T>C	p.Ile1228Thr	missense	Exon 23 of 25	NP_071394.2
	CLSPN	NM_001330490.2		c.3683T>C	p.Ile1228Thr	missense	Exon 23 of 25	NP_001317419.1	Q9HAW4-3
	CLSPN	NM_001190481.2		c.3491T>C	p.Ile1164Thr	missense	Exon 22 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.3683T>C	p.Ile1228Thr	missense	Exon 23 of 25	ENSP00000312995.3	Q9HAW4-1
	CLSPN	ENST00000251195.9	TSL:1	c.3683T>C	p.Ile1228Thr	missense	Exon 23 of 25	ENSP00000251195.5	Q9HAW4-3
	CLSPN	ENST00000520551.1	TSL:1	c.3524T>C	p.Ile1175Thr	missense	Exon 23 of 25	ENSP00000428848.1	E7ESG2

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152212 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000131

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: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.00000342 AC: 5 AN: 1461690 Hom.: 0 Cov.: 30 AF XY: 0.00000550 AC XY: 4 AN XY: 727136

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.0000894 AC: 4 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26130

East Asian (EAS) AF: 0.00 AC: 0 AN: 39692

South Asian (SAS) AF: 0.00 AC: 0 AN: 86238

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53368

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111900

Other (OTH) AF: 0.00 AC: 0 AN: 60394

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152212 Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2 AN XY: 74362

African (AFR) AF: 0.00 AC: 0 AN: 41458

American (AMR) AF: 0.000131 AC: 2 AN: 15268

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5200

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10626

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68040

Other (OTH) AF: 0.00 AC: 0 AN: 2088

Alfa AF: 0.0000712 Hom.: 0

Bravo AF: 0.00000756

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.096
BayesDel_addAF	Benign	-0.31	T
BayesDel_noAF	Benign	-0.68
CADD	Benign	15
DANN	Benign	0.84
DEOGEN2	Benign	0.0086	T
Eigen	Benign	-0.92
Eigen_PC	Benign	-0.82
FATHMM_MKL	Benign	0.27	N
LIST_S2	Benign	0.61	T
M_CAP	Benign	0.0097	T
MetaRNN	Benign	0.029	T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	1.5	L
PhyloP100		0.28
PrimateAI	Benign	0.36	T
PROVEAN	Benign	-0.38	N
REVEL	Benign	0.010
Sift	Benign	0.17	T
Sift4G	Benign	0.48	T
Polyphen		0.048	B
Vest4		0.048
MutPred		0.24		Loss of sheet (P = 0.0126)
MVP		0.10
MPC		0.11
ClinPred		0.030	T
GERP RS		-1.2
Varity_R		0.022
gMVP		0.082
Mutation Taster		=95/5	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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: rs879216434; hg19: chr1-36203004;