Variant rs750173812 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000528.4(MAN2B1):c.2885G>T(p.Arg962Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R962C) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Consequence

MAN2B1
NM_000528.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.110

Variant links:

Genes affected

MAN2B1 (HGNC:6826): (mannosidase alpha class 2B member 1) This gene encodes an enzyme that hydrolyzes terminal, non-reducing alpha-D-mannose residues in alpha-D-mannosides. Its activity is necessary for the catabolism of N-linked carbohydrates released during glycoprotein turnover and it is member of family 38 of glycosyl hydrolases. The full length protein is processed in two steps. First, a 49 aa leader sequence is cleaved off and the remainder of the protein is processed into 3 peptides of 70 kDa, 42 kDa (D) and 13/15 kDa (E). Next, the 70 kDa peptide is further processed into three peptides (A, B and C). The A, B and C peptides are disulfide-linked. Defects in this gene have been associated with lysosomal alpha-mannosidosis. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Mar 2010]

MAN2B1 links:

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ACMG classification

Classification made for transcript

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=0.106720895).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
MAN2B1	NM_000528.4 linkuse as main transcript	c.2885G>T	p.Arg962Leu	missense_variant	23/24	ENST00000456935.7
MAN2B1	NM_001173498.2 linkuse as main transcript	c.2882G>T	p.Arg961Leu	missense_variant	23/24
MAN2B1	XM_005259913.3 linkuse as main transcript	c.2888G>T	p.Arg963Leu	missense_variant	23/24
MAN2B1	XM_047438841.1 linkuse as main transcript	c.1784G>T	p.Arg595Leu	missense_variant	16/17

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MAN2B1	ENST00000456935.7 linkuse as main transcript	c.2885G>T	p.Arg962Leu	missense_variant	23/24	1	NM_000528.4	A1	O00754-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251458

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135914

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.42

CADD

Benign

6.2

DANN

Benign

0.87

DEOGEN2

Benign

0.11

T;.

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.044

LIST_S2

Benign

0.70

T;T

M_CAP

Benign

0.029

MetaRNN

Benign

0.11

T;T

MetaSVM

Benign

-0.89

MutationAssessor

Benign

-0.035

N;.

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.31

PROVEAN

Benign

-1.1

N;N

REVEL

Benign

0.18

Sift

Benign

0.93

T;T

Sift4G

Benign

0.76

T;T

Polyphen

0.0020

B;.

Vest4

0.19

MutPred

0.63

Loss of MoRF binding (P = 0.0089);.;

MVP

0.53

MPC

0.30

ClinPred

0.090

GERP RS

-4.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.092

gMVP

0.46

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

LitVar

Other links and lift over