rs748268539

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. PP2BP4BS2

The NM_133433.4(NIPBL):​c.2261G>A​(p.Arg754Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000992 in 1,613,416 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

NIPBL
NM_133433.4 missense

Scores

2
9
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.07
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PP2
Missense variant in the NIPBL gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 86 curated pathogenic missense variants (we use a threshold of 10). The gene has 69 curated benign missense variants. Gene score misZ: 5.5737 (above the threshold of 3.09). Trascript score misZ: 6.6817 (above the threshold of 3.09). GenCC associations: The gene is linked to Cornelia de Lange syndrome, Cornelia de Lange syndrome 1.
BP4
Computational evidence support a benign effect (MetaRNN=0.38809595).
BS2
High AC in GnomAdExome4 at 14 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NIPBLNM_133433.4 linkc.2261G>A p.Arg754Gln missense_variant Exon 10 of 47 ENST00000282516.13 NP_597677.2 Q6KC79-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NIPBLENST00000282516.13 linkc.2261G>A p.Arg754Gln missense_variant Exon 10 of 47 1 NM_133433.4 ENSP00000282516.8 Q6KC79-1
NIPBLENST00000448238.2 linkc.2261G>A p.Arg754Gln missense_variant Exon 10 of 46 1 ENSP00000406266.2 Q6KC79-2
NIPBLENST00000652901.1 linkc.2261G>A p.Arg754Gln missense_variant Exon 10 of 46 ENSP00000499536.1 A0A590UJS4
NIPBLENST00000504430.5 linkn.1881G>A non_coding_transcript_exon_variant Exon 6 of 8 2

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151920
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000958
AC:
14
AN:
1461496
Hom.:
0
Cov.:
32
AF XY:
0.0000138
AC XY:
10
AN XY:
727022
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000989
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151920
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74188
show subpopulations
Gnomad4 AFR
AF:
0.0000483
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Cornelia de Lange syndrome 1 Uncertain:1
Feb 20, 2024
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Pathogenic
0.21
D
BayesDel_noAF
Uncertain
0.070
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.14
T;.
Eigen
Uncertain
0.56
Eigen_PC
Uncertain
0.65
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Uncertain
0.91
D;D
M_CAP
Benign
0.044
D
MetaRNN
Benign
0.39
T;T
MetaSVM
Uncertain
0.59
D
MutationAssessor
Benign
2.0
M;M
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-0.43
N;N
REVEL
Uncertain
0.42
Sift
Uncertain
0.0050
D;D
Sift4G
Benign
0.39
T;T
Polyphen
1.0
D;D
Vest4
0.53
MutPred
0.24
Loss of MoRF binding (P = 0.0255);Loss of MoRF binding (P = 0.0255);
MVP
0.64
MPC
0.30
ClinPred
0.55
D
GERP RS
6.0
Varity_R
0.12
gMVP
0.39

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: rs748268539; hg19: chr5-36985543; COSMIC: COSV56952821; API