Genetic Variant NM_013335.4:c.592T>C (chr2-219504185-T-C) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The NM_013335.4(GMPPA):c.592T>C(p.Phe198Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000452 in 1,613,998 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000048 ( 0 hom. )

Consequence

GMPPA
NM_013335.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 7.87

Publications

2 publications found

Variant links:

Genes affected

GMPPA (HGNC:22923): (GDP-mannose pyrophosphorylase A) This gene is thought to encode a GDP-mannose pyrophosphorylase. This enzyme catalyzes the reaction which converts mannose-1-phosphate and GTP to GDP-mannose which is involved in the production of N-linked oligosaccharides. [provided by RefSeq, Jul 2008]

GMPPA links:

ASIC4-AS1 (HGNC:40960): (ASIC4 antisense RNA 1)

ASIC4-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.12221146).

BP6

Variant 2-219504185-T-C is Benign according to our data. Variant chr2-219504185-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 474674.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_013335.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
GMPPA	NM_013335.4	MANE Select	c.592T>C	p.Phe198Leu	missense	Exon 7 of 13	NP_037467.2
GMPPA	NM_001438893.1		c.592T>C	p.Phe198Leu	missense	Exon 7 of 12	NP_001425822.1
GMPPA	NM_001438894.1		c.592T>C	p.Phe198Leu	missense	Exon 7 of 12	NP_001425823.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
GMPPA	ENST00000313597.10	TSL:1 MANE Select	c.592T>C	p.Phe198Leu	missense	Exon 7 of 13	ENSP00000315925.6	Q96IJ6-1
GMPPA	ENST00000358215.8	TSL:1	c.592T>C	p.Phe198Leu	missense	Exon 7 of 13	ENSP00000350949.3	Q96IJ6-1
GMPPA	ENST00000950500.1		c.592T>C	p.Phe198Leu	missense	Exon 7 of 13	ENSP00000620559.1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000622

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000131

AC:

AN:

251434

AF XY:

0.000162

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.0000479

AC:

AN:

1461814

Hom.:

Cov.:

AF XY:

0.0000591

AC XY:

AN XY:

727220

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33476

American (AMR)

AF:

0.00

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.000765

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111954

Other (OTH)

AF:

0.0000331

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

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

AF:

0.0000197

AC:

AN:

152184

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74342

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41438

American (AMR)

AF:

0.00

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.000622

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68024

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.000165

AC:

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Alacrima, achalasia, and intellectual disability syndrome (3)

Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.82

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.17

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.45

Eigen

Benign

0.045

Eigen_PC

Benign

0.22

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.87

M_CAP

Benign

0.020

MetaRNN

Benign

0.12

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.2

PhyloP100

7.9

PrimateAI

Pathogenic

0.81

PROVEAN

Uncertain

-4.2

REVEL

Benign

0.23

Sift

Benign

0.049

Sift4G

Benign

0.23

Polyphen

0.0050

Vest4

0.75

MutPred

0.55

Gain of disorder (P = 0.1019)

MVP

0.53

MPC

0.54

ClinPred

0.34

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.41

gMVP

0.66

Mutation Taster

=26/74

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.090

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over