2-232407595-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The ENST00000295453.8(ALPG):​c.302C>T​(p.Thr101Ile) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000582 in 1,613,744 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000049 ( 0 hom. )

Consequence

ALPG
ENST00000295453.8 missense, splice_region

Scores

8
9
2
Splicing: ADA: 0.005339
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.67
Variant links:
Genes affected
ALPG (HGNC:441): (alkaline phosphatase, germ cell) There are at least four distinct but related alkaline phosphatases: intestinal, placental, placental-like, and liver/bone/kidney (tissue non-specific). The product of this gene is a membrane bound glycosylated enzyme, localized to testis, thymus and certain germ cell tumors, that is closely related to both the placental and intestinal forms of alkaline phosphatase. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.989

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ALPGNM_031313.3 linkuse as main transcriptc.302C>T p.Thr101Ile missense_variant, splice_region_variant 4/11 ENST00000295453.8 NP_112603.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ALPGENST00000295453.8 linkuse as main transcriptc.302C>T p.Thr101Ile missense_variant, splice_region_variant 4/111 NM_031313.3 ENSP00000295453 P1

Frequencies

GnomAD3 genomes
AF:
0.000151
AC:
23
AN:
152180
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000323
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000519
AC:
13
AN:
250572
Hom.:
0
AF XY:
0.0000222
AC XY:
3
AN XY:
135434
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:
0.0000925
Gnomad NFE exome
AF:
0.0000885
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000486
AC:
71
AN:
1461564
Hom.:
0
Cov.:
44
AF XY:
0.0000591
AC XY:
43
AN XY:
727062
show subpopulations
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:
0.0000376
Gnomad4 NFE exome
AF:
0.0000603
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.000151
AC:
23
AN:
152180
Hom.:
0
Cov.:
32
AF XY:
0.000108
AC XY:
8
AN XY:
74336
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000323
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000172
Hom.:
0
Bravo
AF:
0.0000604
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000577
AC:
7
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMay 06, 2024The c.302C>T (p.T101I) alteration is located in exon 4 (coding exon 4) of the ALPPL2 gene. This alteration results from a C to T substitution at nucleotide position 302, causing the threonine (T) at amino acid position 101 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.47
BayesDel_addAF
Uncertain
0.027
T
BayesDel_noAF
Pathogenic
0.23
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.89
D
Eigen
Uncertain
0.56
Eigen_PC
Uncertain
0.33
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Uncertain
0.95
D
M_CAP
Benign
0.053
D
MetaRNN
Pathogenic
0.99
D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
4.6
H
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.52
T
PROVEAN
Pathogenic
-5.3
D
REVEL
Pathogenic
0.88
Sift
Uncertain
0.0010
D
Sift4G
Pathogenic
0.0010
D
Polyphen
1.0
D
Vest4
0.93
MVP
0.95
MPC
0.68
ClinPred
0.99
D
GERP RS
2.7
Varity_R
0.74
gMVP
0.95

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0053
dbscSNV1_RF
Benign
0.22
SpliceAI score (max)
0.010
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.

Other links and lift over

dbSNP: rs201165880; hg19: chr2-233272305; API