2-196842800-G-A

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_024989.4(PGAP1):c.2551C>T(p.Pro851Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000153 in 1,567,576 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

PGAP1
NM_024989.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.70

Publications

0 publications found

Variant links:

Genes affected

PGAP1 (HGNC:25712): (post-GPI attachment to proteins inositol deacylase 1) The protein encoded by this gene functions early in the glycosylphosphatidylinositol (GPI) biosynthetic pathway, catalyzing the inositol deacylation of GPI. The encoded protein is required for the production of GPI that can attach to proteins, and this may be an important factor in the transport of GPI-anchored proteins from the endoplasmic reticulum to the Golgi. Defects in this gene are a cause an autosomal recessive form of cognitive impairment. [provided by RefSeq, Jul 2017]

PGAP1 Gene-Disease associations (from GenCC):

intellectual disability, autosomal recessive 42
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
autosomal recessive non-syndromic intellectual disability
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
autosomal recessive spastic paraplegia type 67
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

PGAP1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024989.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PGAP1	NM_024989.4	MANE Select	c.2551C>T	p.Pro851Ser	missense	Exon 26 of 27	NP_079265.2
PGAP1	NM_001321099.2		c.2029C>T	p.Pro677Ser	missense	Exon 27 of 28	NP_001308028.1	Q75T13-2
PGAP1	NM_001321100.2		c.1384C>T	p.Pro462Ser	missense	Exon 25 of 26	NP_001308029.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PGAP1	ENST00000354764.9	TSL:1 MANE Select	c.2551C>T	p.Pro851Ser	missense	Exon 26 of 27	ENSP00000346809.3	Q75T13-1
PGAP1	ENST00000423035.5	TSL:1	n.*2482C>T		non_coding_transcript_exon	Exon 27 of 28	ENSP00000415405.1	F8WD75
PGAP1	ENST00000423035.5	TSL:1	n.*2482C>T		3_prime_UTR	Exon 27 of 28	ENSP00000415405.1	F8WD75

Frequencies

GnomAD3 genomes

AF:

0.00000659

AC:

AN:

151834

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.000289

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000343

AC:

AN:

233428

AF XY:

0.0000316

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000839

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000162

AC:

AN:

1415742

Hom.:

Cov.:

AF XY:

0.0000170

AC XY:

AN XY:

705096

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31794

American (AMR)

AF:

0.00

AC:

AN:

41446

Ashkenazi Jewish (ASJ)

AF:

0.000790

AC:

AN:

25320

East Asian (EAS)

AF:

0.00

AC:

AN:

38446

South Asian (SAS)

AF:

0.00

AC:

AN:

80186

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52724

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5196

European-Non Finnish (NFE)

AF:

9.24e-7

AC:

AN:

1082224

Other (OTH)

AF:

0.0000342

AC:

AN:

58406

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.471

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:

0.00000659

AC:

AN:

151834

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74180

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41346

American (AMR)

AF:

0.00

AC:

AN:

15254

Ashkenazi Jewish (ASJ)

AF:

0.000289

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10508

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67930

Other (OTH)

AF:

0.00

AC:

AN:

2086

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000676

Hom.:

Bravo

AF:

0.0000189

ExAC

AF:

0.0000247

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Intellectual disability, autosomal recessive 42 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.53

BayesDel_addAF

Pathogenic

0.25

BayesDel_noAF

Uncertain

0.12

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.53

Eigen

Uncertain

0.47

Eigen_PC

Uncertain

0.53

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.83

M_CAP

Benign

0.0032

MetaRNN

Uncertain

0.43

MetaSVM

Benign

-0.90

MutationAssessor

Uncertain

2.2

PhyloP100

4.7

PrimateAI

Benign

0.36

PROVEAN

Pathogenic

-5.0

REVEL

Benign

0.22

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.53

MutPred

0.57

Loss of catalytic residue at P851 (P = 0.001)

MVP

0.66

MPC

0.77

ClinPred

0.80

GERP RS

5.3

Varity_R

0.74

gMVP

0.76

Mutation Taster

=44/56

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

Details are displayed if max score is > 0.2

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

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