dbSNP rs770972790: LMAN2:p.Arg172Pro (chr5-177337523-C-G) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_006816.3(LMAN2):c.515G>C(p.Arg172Pro) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000000684 in 1,461,458 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predict no significant impact on 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. R172H) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

LMAN2
NM_006816.3 missense, splice_region

Scores

Splicing: ADA: 0.9732

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.11

Publications

0 publications found

Variant links:

Genes affected

LMAN2 (HGNC:16986): (lectin, mannose binding 2) This gene encodes a type I transmembrane lectin that shuttles between the endoplasmic reticulum, the Golgi apparatus and the plasma membrane. The encoded protein binds high mannose type glycoproteins and may facilitate their sorting, trafficking and quality control. [provided by RefSeq, Oct 2008]

LMAN2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.8

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006816.3. 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
	LMAN2	NM_006816.3	MANE Select	c.515G>C	p.Arg172Pro	missense splice_region	Exon 5 of 8	NP_006807.1	Q12907

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
LMAN2	ENST00000303127.12	TSL:1 MANE Select	c.515G>C	p.Arg172Pro	missense splice_region	Exon 5 of 8	ENSP00000303366.7	Q12907
LMAN2	ENST00000883396.1		c.641G>C	p.Arg214Pro	missense splice_region	Exon 6 of 9	ENSP00000553455.1
LMAN2	ENST00000883394.1		c.515G>C	p.Arg172Pro	missense splice_region	Exon 5 of 8	ENSP00000553453.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461458

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726966

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33468

American (AMR)

AF:

0.00

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53324

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111738

Other (OTH)

AF:

0.00

AC:

AN:

60364

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.96

BayesDel_addAF

Pathogenic

0.34

BayesDel_noAF

Pathogenic

0.25

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.33

Eigen

Pathogenic

0.80

Eigen_PC

Pathogenic

0.76

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.94

M_CAP

Uncertain

0.090

MetaRNN

Pathogenic

0.80

MetaSVM

Uncertain

-0.037

MutationAssessor

Uncertain

2.7

PhyloP100

6.1

PrimateAI

Uncertain

0.71

PROVEAN

Uncertain

-3.7

REVEL

Uncertain

0.59

Sift

Uncertain

0.013

Sift4G

Uncertain

0.041

Polyphen

1.0

Vest4

0.93

MutPred

0.59

Gain of sheet (P = 0.039)

MVP

0.89

MPC

1.3

ClinPred

1.0

GERP RS

5.3

Varity_R

0.84

gMVP

0.86

Mutation Taster

=7/93

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

0.97

dbscSNV1_RF

Benign

0.71

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over