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chr22-50518731-A-G

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_152299.4(NCAPH2):ā€‹c.729A>Gā€‹(p.Pro243=) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00022 in 1,602,516 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (ā˜…).

Frequency

Genomes: š‘“ 0.000079 ( 0 hom., cov: 33)
Exomes š‘“: 0.00023 ( 0 hom. )

Consequence

NCAPH2
NM_152299.4 splice_region, synonymous

Scores

2
Splicing: ADA: 0.05709
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.05
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 -5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.55).
BP6
Variant 22-50518731-A-G is Benign according to our data. Variant chr22-50518731-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 2653398.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=2.05 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NCAPH2NM_152299.4 linkuse as main transcriptc.729A>G p.Pro243= splice_region_variant, synonymous_variant 8/20 ENST00000420993.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NCAPH2ENST00000420993.7 linkuse as main transcriptc.729A>G p.Pro243= splice_region_variant, synonymous_variant 8/201 NM_152299.4 P4Q6IBW4-1

Frequencies

GnomAD3 genomes
AF:
0.0000789
AC:
12
AN:
152162
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.000176
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000957
AC:
22
AN:
229790
Hom.:
0
AF XY:
0.000105
AC XY:
13
AN XY:
124322
show subpopulations
Gnomad AFR exome
AF:
0.0000712
Gnomad AMR exome
AF:
0.00
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:
0.000203
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000234
AC:
340
AN:
1450354
Hom.:
0
Cov.:
31
AF XY:
0.000237
AC XY:
171
AN XY:
720318
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000385
Gnomad4 NFE exome
AF:
0.000296
Gnomad4 OTH exome
AF:
0.000167
GnomAD4 genome
AF:
0.0000789
AC:
12
AN:
152162
Hom.:
0
Cov.:
33
AF XY:
0.0000673
AC XY:
5
AN XY:
74320
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000176
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000186
Hom.:
0
Bravo
AF:
0.000113

ClinVar

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

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenAug 01, 2022NCAPH2: BP4, BP7 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.55
CADD
Benign
16
DANN
Benign
0.59

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.057
dbscSNV1_RF
Benign
0.44
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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs144020470; hg19: chr22-50957160; API