Genetic Variant NCAPH:p.Thr125Ile (chr2-96342766-C-T) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_015341.5(NCAPH):c.374C>T(p.Thr125Ile) variant causes a missense change. The variant allele was found at a frequency of 0.000646 in 1,611,928 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00049 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00066 ( 3 hom. )

Consequence

NCAPH
NM_015341.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.84

Variant links:

Genes affected

NCAPH (HGNC:1112): (non-SMC condensin I complex subunit H) This gene encodes a member of the barr gene family and a regulatory subunit of the condensin complex. This complex is required for the conversion of interphase chromatin into condensed chromosomes. The protein encoded by this gene is associated with mitotic chromosomes, except during the early phase of chromosome condensation. During interphase, the protein has a distinct punctate nucleolar localization. Alternatively spliced transcript variants encoding different proteins have been described. [provided by RefSeq, Jul 2013]

NCAPH links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.039720953).

BS2

High Homozygotes in GnomAdExome4 at 3 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NCAPH	NM_015341.5 link	c.374C>T	p.Thr125Ile	missense_variant	Exon 4 of 18	ENST00000240423.9	NP_056156.2	Q15003-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NCAPH	ENST00000240423.9 link	c.374C>T	p.Thr125Ile	missense_variant	Exon 4 of 18	1	NM_015341.5	ENSP00000240423.4		Q15003-1

Frequencies

GnomAD3 genomes

AF:

0.000493

AC:

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.0219

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000189

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000676

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000294

AC:

AN:

247984

Hom.:

AF XY:

0.000283

AC XY:

AN XY:

134068

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000117

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000660

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000561

Gnomad OTH exome

AF:

0.000659

GnomAD4 exome

AF:

0.000662

AC:

966

AN:

1459640

Hom.:

Cov.:

AF XY:

0.000636

AC XY:

462

AN XY:

725974

show subpopulations

Gnomad4 AFR exome

AF:

0.000209

Gnomad4 AMR exome

AF:

0.000270

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000930

Gnomad4 FIN exome

AF:

0.0000188

Gnomad4 NFE exome

AF:

0.000814

Gnomad4 OTH exome

AF:

0.000563

GnomAD4 genome

AF:

0.000492

AC:

AN:

152288

Hom.:

Cov.:

AF XY:

0.000457

AC XY:

AN XY:

74478

show subpopulations

Gnomad4 AFR

AF:

0.000120

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000189

Gnomad4 NFE

AF:

0.000676

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000545

Hom.:

Bravo

AF:

0.000502

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.00156

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000581

AC:

ExAC

AF:

0.000272

AC:

EpiCase

AF:

0.000436

EpiControl

AF:

0.00107

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 05, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.374C>T (p.T125I) alteration is located in exon 4 (coding exon 4) of the NCAPH gene. This alteration results from a C to T substitution at nucleotide position 374, causing the threonine (T) at amino acid position 125 to be replaced by an isoleucine (I). 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

Uncertain

0.38

BayesDel_addAF

Benign

-0.064

BayesDel_noAF

Uncertain

0.11

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.059

T;T;.

Eigen

Pathogenic

0.75

Eigen_PC

Pathogenic

0.74

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.91

D;D;D

M_CAP

Benign

0.032

MetaRNN

Benign

0.040

T;T;T

MetaSVM

Benign

-0.73

MutationAssessor

Uncertain

2.4

M;.;.

PrimateAI

Pathogenic

0.87

PROVEAN

Uncertain

-2.6

D;D;D

REVEL

Benign

0.29

Sift

Uncertain

0.0050

D;D;D

Sift4G

Uncertain

0.0030

D;D;D

Polyphen

1.0

D;D;D

Vest4

0.64

MVP

0.72

MPC

0.74

ClinPred

0.18

GERP RS

5.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.40

gMVP

0.55

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