NIPBL p.Gly290Cys

Variant names:

• chr5-36972041-G-T
• NM_133433.4:c.868G>T
• NIPBL p.Gly290Cys

Your query was ambiguous. Multiple possible variants found:

• chr5-36972041-G-T
• chr5-36972041-GGC-TGT

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM2 PM5 PP3_Strong

The NM_133433.4(NIPBL):​c.868G>T​(p.Gly290Cys) variant causes a missense, splice region change. The variant was absent in control chromosomes in GnomAD project. 3/3 splice prediction tools predicting alterations to normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G290D) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: NIPBL NM_133433.4 missense, splice_region
• Scores: Splicing: ADA: 1.000
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.63
• Publications: 0 publications found

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]

NIPBL Gene-Disease associations (from GenCC):

• Cornelia de Lange syndrome

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
• Cornelia de Lange syndrome 1

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P

ACMG classification

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr5-36972041-G-A is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 446431.Status of the report is criteria_provided_single_submitter, 1 stars.
• PP3: Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF, max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_133433.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NIPBL	NM_133433.4	MANE Select	c.868G>T	p.Gly290Cys	missense splice_region	Exon 8 of 47	NP_597677.2
	NIPBL	NM_001438586.1		c.868G>T	p.Gly290Cys	missense splice_region	Exon 8 of 47	NP_001425515.1
	NIPBL	NM_015384.5		c.868G>T	p.Gly290Cys	missense splice_region	Exon 8 of 46	NP_056199.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NIPBL	ENST00000282516.13	TSL:1 MANE Select	c.868G>T	p.Gly290Cys	missense splice_region	Exon 8 of 47	ENSP00000282516.8	Q6KC79-1
	NIPBL	ENST00000448238.2	TSL:1	c.868G>T	p.Gly290Cys	missense splice_region	Exon 8 of 46	ENSP00000406266.2	Q6KC79-2
	NIPBL	ENST00000652901.1		c.868G>T	p.Gly290Cys	missense splice_region	Exon 8 of 46	ENSP00000499536.1	A0A590UJS4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 27

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.30
BayesDel_addAF	Pathogenic	0.21	D
BayesDel_noAF	Uncertain	0.070
CADD	Pathogenic	35
DANN	Uncertain	1.0
DEOGEN2	Benign	0.29	T
Eigen	Uncertain	0.28
Eigen_PC	Uncertain	0.40
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Benign	0.85	D
M_CAP	Benign	0.026	D
MetaRNN	Uncertain	0.57	D
MetaSVM	Uncertain	0.56	D
MutationAssessor	Benign	2.0	M
PhyloP100		4.6
PrimateAI	Uncertain	0.62	T
PROVEAN	Benign	-1.9	N
REVEL	Uncertain	0.47
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0060	D
Varity_R		0.40
gMVP		0.39
Mutation Taster		=31/69	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	1.0
dbscSNV1_RF	Pathogenic	1.0
SpliceAI score (max)		0.76		Details are displayed if max score is > 0.2
DS_DG_spliceai		0.48		Position offset: 8
DS_DL_spliceai		0.76		Position offset: 0

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr5-36972143;

COSMIC: COSV99241969;