rs185678374

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 1P and 13B. PP2BP4_StrongBP6BS1BS2

The NM_133433.4(NIPBL):​c.2294G>A​(p.Arg765Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00065 in 1,613,722 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00059 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00066 ( 2 hom. )

Consequence

NIPBL
NM_133433.4 missense

Scores

1
3
15

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:8

Conservation

PhyloP100: 3.11
Variant links:
Genes affected
NIPBL (HGNC:28862): (NIPBL cohesin loading factor) This gene encodes the homolog of the Drosophila melanogaster Nipped-B gene product and fungal Scc2-type sister chromatid cohesion proteins. The Drosophila protein facilitates enhancer-promoter communication of remote enhancers and plays a role in developmental regulation. It is also homologous to a family of chromosomal adherins with broad roles in sister chromatid cohesion, chromosome condensation, and DNA repair. The human protein has a bipartite nuclear targeting sequence and a putative HEAT repeat. Condensins, cohesins and other complexes with chromosome-related functions also contain HEAT repeats. Mutations in this gene result in Cornelia de Lange syndrome, a disorder characterized by dysmorphic facial features, growth delay, limb reduction defects, and cognitive disability. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), NIPBL. . Gene score misZ 5.5737 (greater than the threshold 3.09). Trascript score misZ 6.6817 (greater than threshold 3.09). GenCC has associacion of gene with Cornelia de Lange syndrome, Cornelia de Lange syndrome 1.
BP4
Computational evidence support a benign effect (MetaRNN=0.013206512).
BP6
Variant 5-36985474-G-A is Benign according to our data. Variant chr5-36985474-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 159051.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=5, Uncertain_significance=1, Benign=3}.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000591 (90/152172) while in subpopulation NFE AF= 0.00107 (73/68010). AF 95% confidence interval is 0.000875. There are 0 homozygotes in gnomad4. There are 46 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 90 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NIPBLNM_133433.4 linkuse as main transcriptc.2294G>A p.Arg765Lys missense_variant 10/47 ENST00000282516.13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NIPBLENST00000282516.13 linkuse as main transcriptc.2294G>A p.Arg765Lys missense_variant 10/471 NM_133433.4 P1Q6KC79-1
NIPBLENST00000448238.2 linkuse as main transcriptc.2294G>A p.Arg765Lys missense_variant 10/461 Q6KC79-2
NIPBLENST00000652901.1 linkuse as main transcriptc.2294G>A p.Arg765Lys missense_variant 10/46
NIPBLENST00000504430.5 linkuse as main transcriptn.1914G>A non_coding_transcript_exon_variant 6/82

Frequencies

GnomAD3 genomes
AF:
0.000592
AC:
90
AN:
152054
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00346
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000377
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00107
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000521
AC:
130
AN:
249308
Hom.:
0
AF XY:
0.000540
AC XY:
73
AN XY:
135166
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000581
Gnomad ASJ exome
AF:
0.00190
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000277
Gnomad NFE exome
AF:
0.000873
Gnomad OTH exome
AF:
0.000821
GnomAD4 exome
AF:
0.000656
AC:
959
AN:
1461550
Hom.:
2
Cov.:
32
AF XY:
0.000657
AC XY:
478
AN XY:
727060
show subpopulations
Gnomad4 AFR exome
AF:
0.000120
Gnomad4 AMR exome
AF:
0.0000896
Gnomad4 ASJ exome
AF:
0.00237
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.000319
Gnomad4 NFE exome
AF:
0.000753
Gnomad4 OTH exome
AF:
0.000580
GnomAD4 genome
AF:
0.000591
AC:
90
AN:
152172
Hom.:
0
Cov.:
32
AF XY:
0.000618
AC XY:
46
AN XY:
74398
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00346
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000377
Gnomad4 NFE
AF:
0.00107
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000970
Hom.:
0
Bravo
AF:
0.000491
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000814
AC:
7
ExAC
AF:
0.000552
AC:
67
EpiCase
AF:
0.000546
EpiControl
AF:
0.000771

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:8
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Cornelia de Lange syndrome 1 Uncertain:1Benign:3
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 15, 2021- -
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoFeb 08, 2013- -
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 10, 2024- -
not specified Benign:2
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Likely benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Apr 27, 2016- -
not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxMar 19, 2020- -
Likely benign, criteria provided, single submitterclinical testingCenter for Pediatric Genomic Medicine, Children's Mercy Hospital and ClinicsMay 03, 2017- -
Inborn genetic diseases Benign:1
Benign, criteria provided, single submitterclinical testingAmbry GeneticsJul 01, 2016This alteration is classified as 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
0.14
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.13
CADD
Benign
20
DANN
Benign
0.95
DEOGEN2
Benign
0.11
T;.
Eigen
Benign
-0.11
Eigen_PC
Benign
0.15
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.68
T;T
M_CAP
Benign
0.020
T
MetaRNN
Benign
0.013
T;T
MetaSVM
Uncertain
0.0032
D
MutationAssessor
Benign
-0.090
N;N
MutationTaster
Benign
0.86
D;D
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
-0.13
N;N
REVEL
Uncertain
0.30
Sift
Benign
0.35
T;T
Sift4G
Benign
0.99
T;T
Polyphen
0.0010
B;B
Vest4
0.33
MVP
0.61
MPC
0.19
ClinPred
0.030
T
GERP RS
6.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.13
gMVP
0.22

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: rs185678374; hg19: chr5-36985576; API