13-114324718-G-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BA1

The NM_032436.4(CHAMP1):​c.876G>A​(p.Pro292=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.083 in 1,613,386 control chromosomes in the GnomAD database, including 6,368 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (no stars).

Frequency

Genomes: 𝑓 0.095 ( 768 hom., cov: 32)
Exomes 𝑓: 0.082 ( 5600 hom. )

Consequence

CHAMP1
NM_032436.4 synonymous

Scores

2

Clinical Significance

Benign no assertion criteria provided B:1

Conservation

PhyloP100: -0.597
Variant links:
Genes affected
CHAMP1 (HGNC:20311): (chromosome alignment maintaining phosphoprotein 1) This gene encodes a zinc finger protein that functions as a regulator of chromosome segregation in mitosis. The encoded protein is required for correct alignment of chromosomes on the metaphase plate, and plays a role in maintaining the attachment of sister kinetochores to microtubules from opposite spindle poles. Mutations in this gene are associated with an autosomal dominant form of intellectual disability. [provided by RefSeq, Jul 2017]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.6).
BP6
Variant 13-114324718-G-A is Benign according to our data. Variant chr13-114324718-G-A is described in ClinVar as [Benign]. Clinvar id is 3059016.Status of the report is no_assertion_criteria_provided, 0 stars.
BP7
Synonymous conserved (PhyloP=-0.597 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.137 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CHAMP1NM_032436.4 linkuse as main transcriptc.876G>A p.Pro292= synonymous_variant 3/3 ENST00000361283.4 NP_115812.1
CHAMP1NM_001164144.3 linkuse as main transcriptc.876G>A p.Pro292= synonymous_variant 3/3 NP_001157616.1
CHAMP1NM_001164145.3 linkuse as main transcriptc.876G>A p.Pro292= synonymous_variant 3/3 NP_001157617.1
CHAMP1XM_047430277.1 linkuse as main transcriptc.876G>A p.Pro292= synonymous_variant 3/3 XP_047286233.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CHAMP1ENST00000361283.4 linkuse as main transcriptc.876G>A p.Pro292= synonymous_variant 3/31 NM_032436.4 ENSP00000354730 P1

Frequencies

GnomAD3 genomes
AF:
0.0947
AC:
14375
AN:
151850
Hom.:
768
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.117
Gnomad AMI
AF:
0.00548
Gnomad AMR
AF:
0.142
Gnomad ASJ
AF:
0.117
Gnomad EAS
AF:
0.118
Gnomad SAS
AF:
0.0974
Gnomad FIN
AF:
0.0792
Gnomad MID
AF:
0.139
Gnomad NFE
AF:
0.0704
Gnomad OTH
AF:
0.101
GnomAD3 exomes
AF:
0.103
AC:
25736
AN:
251048
Hom.:
1629
AF XY:
0.0977
AC XY:
13259
AN XY:
135718
show subpopulations
Gnomad AFR exome
AF:
0.122
Gnomad AMR exome
AF:
0.204
Gnomad ASJ exome
AF:
0.113
Gnomad EAS exome
AF:
0.104
Gnomad SAS exome
AF:
0.0981
Gnomad FIN exome
AF:
0.0784
Gnomad NFE exome
AF:
0.0738
Gnomad OTH exome
AF:
0.0992
GnomAD4 exome
AF:
0.0818
AC:
119535
AN:
1461418
Hom.:
5600
Cov.:
32
AF XY:
0.0817
AC XY:
59395
AN XY:
726980
show subpopulations
Gnomad4 AFR exome
AF:
0.117
Gnomad4 AMR exome
AF:
0.198
Gnomad4 ASJ exome
AF:
0.115
Gnomad4 EAS exome
AF:
0.145
Gnomad4 SAS exome
AF:
0.0966
Gnomad4 FIN exome
AF:
0.0770
Gnomad4 NFE exome
AF:
0.0715
Gnomad4 OTH exome
AF:
0.0876
GnomAD4 genome
AF:
0.0946
AC:
14382
AN:
151968
Hom.:
768
Cov.:
32
AF XY:
0.0968
AC XY:
7189
AN XY:
74288
show subpopulations
Gnomad4 AFR
AF:
0.117
Gnomad4 AMR
AF:
0.142
Gnomad4 ASJ
AF:
0.117
Gnomad4 EAS
AF:
0.118
Gnomad4 SAS
AF:
0.0970
Gnomad4 FIN
AF:
0.0792
Gnomad4 NFE
AF:
0.0704
Gnomad4 OTH
AF:
0.100
Alfa
AF:
0.0815
Hom.:
1119
Bravo
AF:
0.102
Asia WGS
AF:
0.0990
AC:
344
AN:
3478
EpiCase
AF:
0.0768
EpiControl
AF:
0.0744

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

CHAMP1-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMar 28, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.60
CADD
Benign
8.1
DANN
Benign
0.82
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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.

Other links and lift over

dbSNP: rs3813133; hg19: chr13-115090193; COSMIC: COSV63522544; COSMIC: COSV63522544; API