Variant chr22-50519210-A-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_152299.4(NCAPH2):c.751A>C(p.Met251Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000411 in 1,458,458 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

NCAPH2
NM_152299.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.930

Variant links:

Genes affected

NCAPH2 (HGNC:25071): (non-SMC condensin II complex subunit H2) This gene encodes one of the non-SMC subunits of the condensin II complex. This complex plays an essential role in mitotic chromosome assembly. Alternate splicing of this gene results in multiple transcript variants.[provided by RefSeq, May 2010]

NCAPH2 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.049316674).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NCAPH2	NM_152299.4 linkuse as main transcript	c.751A>C	p.Met251Leu	missense_variant	9/20	ENST00000420993.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NCAPH2	ENST00000420993.7 linkuse as main transcript	c.751A>C	p.Met251Leu	missense_variant	9/20	1	NM_152299.4	P4	Q6IBW4-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000833

AC:

AN:

239998

Hom.:

AF XY:

0.00000766

AC XY:

AN XY:

130616

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000590

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1458458

Hom.:

Cov.:

AF XY:

0.00000552

AC XY:

AN XY:

725238

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000451

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000360

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000825

AC:

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 submitter

clinical testing

Ambry Genetics

Dec 14, 2023

The c.751A>C (p.M251L) alteration is located in exon 9 (coding exon 9) of the NCAPH2 gene. This alteration results from a A to C substitution at nucleotide position 751, causing the methionine (M) at amino acid position 251 to be replaced by a leucine (L). 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

0.080

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.57

CADD

Benign

0.043

DANN

Benign

0.59

DEOGEN2

Benign

0.051

T;.;T;T;.

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.7

FATHMM_MKL

Benign

0.064

LIST_S2

Benign

0.54

T;T;T;T;T

M_CAP

Benign

0.0013

MetaRNN

Benign

0.049

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.090

N;N;.;.;N

MutationTaster

Benign

1.0

N;N;N;N

PrimateAI

Benign

0.39

PROVEAN

Benign

-0.72

N;N;N;N;N

REVEL

Benign

0.0070

Sift

Benign

0.72

T;T;T;T;T

Sift4G

Benign

0.73

T;T;T;T;T

Polyphen

0.0

B;B;.;.;B

Vest4

0.14

MutPred

0.40

Gain of catalytic residue at M251 (P = 0.034);Gain of catalytic residue at M251 (P = 0.034);Gain of catalytic residue at M251 (P = 0.034);.;Gain of catalytic residue at M251 (P = 0.034);

MVP

0.082

MPC

0.10

ClinPred

0.025

GERP RS

-5.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.060

gMVP

0.12

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over