rs1130335

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBA1

The NM_001632.5(ALPP):​c.74C>T​(p.Pro25Leu) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.081 in 1,613,864 control chromosomes in the GnomAD database, including 6,187 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.070 ( 485 hom., cov: 32)
Exomes 𝑓: 0.082 ( 5702 hom. )

Consequence

ALPP
NM_001632.5 missense, splice_region

Scores

1
5
12
Splicing: ADA: 0.8676
2

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: 1.71

Publications

15 publications found
Variant links:
Genes affected
ALPP (HGNC:439): (alkaline phosphatase, placental) The protein encoded by this gene is an alkaline phosphatase, a metalloenzyme that catalyzes the hydrolysis of phosphoric acid monoesters. It belongs to a multigene family composed of four alkaline phosphatase isoenzymes. The enzyme functions as a homodimer and has a catalytic site containing one magnesium and two zinc ions, which are required for its enzymatic function. One of the main sources of this enzyme is the liver, and thus, it's one of several indicators of liver injury in different clinical conditions. In pregnant women, this protein is primarily expressed in placental and endometrial tissue, however, strong ectopic expression has been detected in ovarian adenocarcinoma, serous cystadenocarcinoma, and other ovarian cancer cells. [provided by RefSeq, Aug 2020]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0017961562).
BP6
Variant 2-232378876-C-T is Benign according to our data. Variant chr2-232378876-C-T is described in ClinVar as Benign. ClinVar VariationId is 13661.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.214 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ALPPNM_001632.5 linkc.74C>T p.Pro25Leu missense_variant, splice_region_variant Exon 1 of 11 ENST00000392027.3 NP_001623.3 P05187B2R7C7
LOC124906123XR_007088121.1 linkn.88+69G>A intron_variant Intron 1 of 3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ALPPENST00000392027.3 linkc.74C>T p.Pro25Leu missense_variant, splice_region_variant Exon 1 of 11 1 NM_001632.5 ENSP00000375881.2 P05187
ALPPENST00000474529.1 linkn.153C>T splice_region_variant, non_coding_transcript_exon_variant Exon 1 of 4 2
ECEL1P2ENST00000715297.1 linkn.812+69G>A intron_variant Intron 4 of 6

Frequencies

GnomAD3 genomes
AF:
0.0702
AC:
10670
AN:
151936
Hom.:
485
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0385
Gnomad AMI
AF:
0.0593
Gnomad AMR
AF:
0.0564
Gnomad ASJ
AF:
0.0525
Gnomad EAS
AF:
0.224
Gnomad SAS
AF:
0.0720
Gnomad FIN
AF:
0.0587
Gnomad MID
AF:
0.0633
Gnomad NFE
AF:
0.0835
Gnomad OTH
AF:
0.0740
GnomAD2 exomes
AF:
0.0801
AC:
20113
AN:
251184
AF XY:
0.0802
show subpopulations
Gnomad AFR exome
AF:
0.0393
Gnomad AMR exome
AF:
0.0377
Gnomad ASJ exome
AF:
0.0487
Gnomad EAS exome
AF:
0.222
Gnomad FIN exome
AF:
0.0626
Gnomad NFE exome
AF:
0.0849
Gnomad OTH exome
AF:
0.0829
GnomAD4 exome
AF:
0.0822
AC:
120106
AN:
1461810
Hom.:
5702
Cov.:
32
AF XY:
0.0818
AC XY:
59521
AN XY:
727212
show subpopulations
African (AFR)
AF:
0.0358
AC:
1199
AN:
33478
American (AMR)
AF:
0.0402
AC:
1799
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.0511
AC:
1335
AN:
26132
East Asian (EAS)
AF:
0.232
AC:
9197
AN:
39698
South Asian (SAS)
AF:
0.0664
AC:
5723
AN:
86240
European-Finnish (FIN)
AF:
0.0663
AC:
3540
AN:
53404
Middle Eastern (MID)
AF:
0.0552
AC:
318
AN:
5764
European-Non Finnish (NFE)
AF:
0.0828
AC:
92066
AN:
1111982
Other (OTH)
AF:
0.0816
AC:
4929
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.455
Heterozygous variant carriers
0
6978
13955
20933
27910
34888
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
3384
6768
10152
13536
16920
<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:
0.0702
AC:
10669
AN:
152054
Hom.:
485
Cov.:
32
AF XY:
0.0692
AC XY:
5146
AN XY:
74326
show subpopulations
African (AFR)
AF:
0.0385
AC:
1598
AN:
41464
American (AMR)
AF:
0.0563
AC:
860
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.0525
AC:
182
AN:
3466
East Asian (EAS)
AF:
0.225
AC:
1160
AN:
5162
South Asian (SAS)
AF:
0.0714
AC:
343
AN:
4804
European-Finnish (FIN)
AF:
0.0587
AC:
622
AN:
10596
Middle Eastern (MID)
AF:
0.0680
AC:
20
AN:
294
European-Non Finnish (NFE)
AF:
0.0835
AC:
5675
AN:
67978
Other (OTH)
AF:
0.0737
AC:
155
AN:
2104
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.493
Heterozygous variant carriers
0
459
918
1377
1836
2295
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
128
256
384
512
640
<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:
0.0804
Hom.:
1370
Bravo
AF:
0.0682
TwinsUK
AF:
0.0809
AC:
300
ALSPAC
AF:
0.0843
AC:
325
ESP6500AA
AF:
0.0415
AC:
183
ESP6500EA
AF:
0.0812
AC:
698
ExAC
AF:
0.0819
AC:
9941
Asia WGS
AF:
0.114
AC:
398
AN:
3478
EpiCase
AF:
0.0809
EpiControl
AF:
0.0828

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

ALKALINE PHOSPHATASE, PLACENTAL, ALLELE-3 POLYMORPHISM Benign:1
Aug 01, 1986
OMIM
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:literature only

- -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.25
BayesDel_addAF
Benign
-0.46
T
BayesDel_noAF
Benign
-0.28
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Benign
0.31
T
Eigen
Benign
-0.0024
Eigen_PC
Benign
-0.27
FATHMM_MKL
Benign
0.077
N
LIST_S2
Benign
0.80
T
MetaRNN
Benign
0.0018
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.6
M
PhyloP100
1.7
PrimateAI
Benign
0.47
T
PROVEAN
Pathogenic
-5.1
D
REVEL
Uncertain
0.33
Sift
Uncertain
0.027
D
Sift4G
Uncertain
0.043
D
Polyphen
1.0
D
Vest4
0.084
MPC
0.44
ClinPred
0.052
T
GERP RS
1.8
PromoterAI
-0.037
Neutral
Varity_R
0.42
gMVP
0.59
Mutation Taster
=91/9
polymorphism (auto)

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.87
dbscSNV1_RF
Benign
0.64
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

Other links and lift over

dbSNP: rs1130335; hg19: chr2-233243586; COSMIC: COSV67396431; COSMIC: COSV67396431; API