rs150488625

Positions:

• chr10-16890455-C-G
• chr10-16890455-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001081.4(CUBN):​c.8671G>C​(p.Val2891Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,850 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: CUBN NM_001081.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.155

Genes affected

CUBN (HGNC:2548): (cubilin) Cubilin (CUBN) acts as a receptor for intrinsic factor-vitamin B12 complexes. The role of receptor is supported by the presence of 27 CUB domains. Cubulin is located within the epithelium of intestine and kidney. Mutations in CUBN may play a role in autosomal recessive megaloblastic anemia. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.08869347).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CUBN	NM_001081.4	c.8671G>C	p.Val2891Leu	missense_variant	55/67	ENST00000377833.10	NP_001072.2
CUBN	XM_011519709.3	c.4657G>C	p.Val1553Leu	missense_variant	29/41		XP_011518011.1
CUBN	XM_011519710.3	c.4633G>C	p.Val1545Leu	missense_variant	29/41		XP_011518012.1
CUBN	XM_011519711.4	c.4513G>C	p.Val1505Leu	missense_variant	28/40		XP_011518013.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CUBN	ENST00000377833.10	c.8671G>C	p.Val2891Leu	missense_variant	55/67	1	NM_001081.4	ENSP00000367064.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461850 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727228

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: 0.00

Gnomad4 NFE exome AF: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.099
BayesDel_addAF	Benign	-0.35	T
BayesDel_noAF	Benign	-0.74
CADD	Benign	2.0
DANN	Benign	0.68
DEOGEN2	Benign	0.025	T
Eigen	Benign	-1.5
Eigen_PC	Benign	-1.4
FATHMM_MKL	Benign	0.40	N
LIST_S2	Benign	0.57	T
M_CAP	Benign	0.0085	T
MetaRNN	Benign	0.089	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.81	L
PrimateAI	Benign	0.33	T
PROVEAN	Benign	-0.38	N
REVEL	Benign	0.027
Sift	Benign	0.16	T
Sift4G	Benign	0.14	T
Polyphen		0.0050	B
Vest4		0.15
MutPred		0.52		Loss of glycosylation at S2895 (P = 0.1773);
MVP		0.17
MPC		0.084
ClinPred		0.27	T
GERP RS		-2.9
Varity_R		0.038
gMVP		0.33

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

Other links and lift over

dbSNP: rs150488625; hg19: chr10-16932454;