chr22-50518654-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_152299.4(NCAPH2):​c.652G>A​(p.Gly218Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000548 in 1,606,718 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000056 ( 0 hom. )

Consequence

NCAPH2
NM_152299.4 missense

Scores

19

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.999
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.034493834).
BP6
Variant 22-50518654-G-A is Benign according to our data. Variant chr22-50518654-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2596500.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NCAPH2NM_152299.4 linkuse as main transcriptc.652G>A p.Gly218Arg missense_variant 8/20 ENST00000420993.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NCAPH2ENST00000420993.7 linkuse as main transcriptc.652G>A p.Gly218Arg missense_variant 8/201 NM_152299.4 P4Q6IBW4-1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152166
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000543
AC:
13
AN:
239366
Hom.:
0
AF XY:
0.0000308
AC XY:
4
AN XY:
129854
show subpopulations
Gnomad AFR exome
AF:
0.0000674
Gnomad AMR exome
AF:
0.0000298
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000111
Gnomad SAS exome
AF:
0.0000345
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000740
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000557
AC:
81
AN:
1454552
Hom.:
0
Cov.:
31
AF XY:
0.0000609
AC XY:
44
AN XY:
722916
show subpopulations
Gnomad4 AFR exome
AF:
0.0000300
Gnomad4 AMR exome
AF:
0.0000227
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000101
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000631
Gnomad4 OTH exome
AF:
0.0000666
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152166
Hom.:
0
Cov.:
33
AF XY:
0.0000404
AC XY:
3
AN XY:
74328
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000162
Hom.:
0
Bravo
AF:
0.0000264
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000742
AC:
9

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsAug 21, 2023This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.072
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.46
CADD
Benign
6.4
DANN
Benign
0.61
DEOGEN2
Benign
0.055
T;.;T;T;.
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.035
N
LIST_S2
Benign
0.65
T;T;T;T;T
M_CAP
Benign
0.0066
T
MetaRNN
Benign
0.034
T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
-0.11
N;N;.;.;N
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.22
T
PROVEAN
Benign
-0.75
N;N;N;N;N
REVEL
Benign
0.025
Sift
Benign
0.42
T;T;T;T;T
Sift4G
Benign
0.18
T;T;T;T;T
Polyphen
0.0040
B;B;.;.;B
Vest4
0.064
MutPred
0.35
Gain of glycosylation at K215 (P = 0.0845);Gain of glycosylation at K215 (P = 0.0845);Gain of glycosylation at K215 (P = 0.0845);.;Gain of glycosylation at K215 (P = 0.0845);
MVP
0.068
MPC
0.13
ClinPred
0.0080
T
GERP RS
-4.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.044
gMVP
0.19

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.20
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.20
Position offset: 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.

Other links and lift over

dbSNP: rs369545189; hg19: chr22-50957083; COSMIC: COSV53218214; COSMIC: COSV53218214; API