20-49094187-A-G

Position:

• chr20-49094187-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The ENST00000262982.3(CSE1L):​c.2495A>G​(p.Lys832Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CSE1L ENST00000262982.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 8.87

Genes affected

CSE1L (HGNC:2431): (chromosome segregation 1 like) Proteins that carry a nuclear localization signal (NLS) are transported into the nucleus by the importin-alpha/beta heterodimer. Importin-alpha binds the NLS, while importin-beta mediates translocation through the nuclear pore complex. After translocation, RanGTP binds importin-beta and displaces importin-alpha. Importin-alpha must then be returned to the cytoplasm, leaving the NLS protein behind. The protein encoded by this gene binds strongly to NLS-free importin-alpha, and this binding is released in the cytoplasm by the combined action of RANBP1 and RANGAP1. In addition, the encoded protein may play a role both in apoptosis and in cell proliferation. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jan 2012]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.34135592).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CSE1L	NM_001316.4	c.2495A>G	p.Lys832Arg	missense_variant	23/25	ENST00000262982.3	NP_001307.2
CSE1L	NM_001362762.2	c.2495A>G	p.Lys832Arg	missense_variant	23/25		NP_001349691.1
CSE1L	NM_001256135.2	c.2327A>G	p.Lys776Arg	missense_variant	22/24		NP_001243064.1
CSE1L	NR_045796.2	n.2133A>G		non_coding_transcript_exon_variant	20/22

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CSE1L	ENST00000262982.3	c.2495A>G	p.Lys832Arg	missense_variant	23/25	1	NM_001316.4	ENSP00000262982	P1
CSE1L	ENST00000469700.1	n.293A>G		non_coding_transcript_exon_variant	4/6	1
CSE1L	ENST00000396192.7	c.2327A>G	p.Lys776Arg	missense_variant	22/24	5		ENSP00000379495

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Uncertain	0.051	T
BayesDel_noAF	Benign	-0.16
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.26	.;T
Eigen	Uncertain	0.37
Eigen_PC	Uncertain	0.46
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.96	D;D
M_CAP	Benign	0.021	T
MetaRNN	Benign	0.34	T;T
MetaSVM	Benign	-0.85	T
MutationAssessor	Benign	2.0	.;M
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Pathogenic	0.83	D
PROVEAN	Benign	-2.1	N;N
REVEL	Benign	0.21
Sift	Benign	0.059	T;D
Sift4G	Benign	0.067	T;T
Polyphen		0.85	.;P
Vest4		0.52
MutPred		0.52		.;Loss of methylation at K832 (P = 0.0082);
MVP		0.40
MPC		0.67
ClinPred		0.86	D
GERP RS		5.2
Varity_R		0.25
gMVP		0.45

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

Other links and lift over

dbSNP: rs28659989; hg19: chr20-47710724;