rs75468446

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000430.4(PAFAH1B1):​c.192+43T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00483 in 1,344,366 control chromosomes in the GnomAD database, including 273 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.025 ( 164 hom., cov: 32)
Exomes 𝑓: 0.0023 ( 109 hom. )

Consequence

PAFAH1B1
NM_000430.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.328
Variant links:
Genes affected
PAFAH1B1 (HGNC:8574): (platelet activating factor acetylhydrolase 1b regulatory subunit 1) This locus was identified as encoding a gene that when mutated or lost caused the lissencephaly associated with Miller-Dieker lissencephaly syndrome. This gene encodes the non-catalytic alpha subunit of the intracellular Ib isoform of platelet-activating factor acteylhydrolase, a heterotrimeric enzyme that specifically catalyzes the removal of the acetyl group at the SN-2 position of platelet-activating factor (identified as 1-O-alkyl-2-acetyl-sn-glyceryl-3-phosphorylcholine). Two other isoforms of intracellular platelet-activating factor acetylhydrolase exist: one composed of multiple subunits, the other, a single subunit. In addition, a single-subunit isoform of this enzyme is found in serum. [provided by RefSeq, Apr 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.85).
BP6
Variant 17-2666133-T-C is Benign according to our data. Variant chr17-2666133-T-C is described in ClinVar as [Benign]. Clinvar id is 256110.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0836 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PAFAH1B1NM_000430.4 linkuse as main transcriptc.192+43T>C intron_variant ENST00000397195.10 NP_000421.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PAFAH1B1ENST00000397195.10 linkuse as main transcriptc.192+43T>C intron_variant 1 NM_000430.4 ENSP00000380378 P1P43034-1

Frequencies

GnomAD3 genomes
AF:
0.0246
AC:
3737
AN:
152160
Hom.:
164
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0858
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00786
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.000235
Gnomad OTH
AF:
0.0201
GnomAD3 exomes
AF:
0.00627
AC:
921
AN:
146842
Hom.:
36
AF XY:
0.00485
AC XY:
380
AN XY:
78318
show subpopulations
Gnomad AFR exome
AF:
0.0887
Gnomad AMR exome
AF:
0.00509
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000132
Gnomad OTH exome
AF:
0.00222
GnomAD4 exome
AF:
0.00230
AC:
2738
AN:
1192088
Hom.:
109
Cov.:
19
AF XY:
0.00198
AC XY:
1167
AN XY:
590222
show subpopulations
Gnomad4 AFR exome
AF:
0.0833
Gnomad4 AMR exome
AF:
0.00517
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000999
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000875
Gnomad4 OTH exome
AF:
0.00554
GnomAD4 genome
AF:
0.0246
AC:
3750
AN:
152278
Hom.:
164
Cov.:
32
AF XY:
0.0247
AC XY:
1836
AN XY:
74478
show subpopulations
Gnomad4 AFR
AF:
0.0859
Gnomad4 AMR
AF:
0.00785
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000235
Gnomad4 OTH
AF:
0.0198
Alfa
AF:
0.0133
Hom.:
11
Bravo
AF:
0.0275
Asia WGS
AF:
0.00318
AC:
11
AN:
3476

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxJul 21, 2018- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.85
CADD
Benign
1.5
DANN
Benign
0.80

Splicing

Name
Calibrated prediction
Score
Prediction
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: rs75468446; hg19: chr17-2569427; API