NM_000430.4(PAFAH1B1):c.569-10T>C AND Lissencephaly due to LIS1 mutation

Germline classification:: Pathogenic (3 submissions)
Last evaluated:: May 28, 2019
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV000020304.14

Allele description [Variation Report for NM_000430.4(PAFAH1B1):c.569-10T>C]

NM_000430.4(PAFAH1B1):c.569-10T>C

Gene:

PAFAH1B1:platelet activating factor acetylhydrolase 1b regulatory subunit 1 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

17p13.3

Genomic location:

Preferred name:

NM_000430.4(PAFAH1B1):c.569-10T>C

HGVS:

NC_000017.11:g.2672645T>C
NG_009799.1:g.84017T>C
NM_000430.4:c.569-10T>CMANE SELECT
NC_000017.10:g.2575939T>C
NM_000430.3:c.569-10T>C

Links:

dbSNP: rs113994202

NCBI 1000 Genomes Browser:

rs113994202

Molecular consequence:

NM_000430.4:c.569-10T>C - intron variant - [Sequence Ontology: SO:0001627]

Condition(s)

Name:: Lissencephaly due to LIS1 mutation (LIS1)
Synonyms:: Isolated Lissencephaly Sequence
Identifiers:: MONDO: MONDO:0011830; MedGen: C4749301; OMIM: 607432

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000194389	Genetic Services Laboratory, University of Chicago	criteria provided, single submitter (ACMG Guidelines, 2007)	Pathogenic (Feb 8, 2013)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV001140211	Mendelics	criteria provided, single submitter (Mendelics Assertion Criteria 2017)	Pathogenic (May 28, 2019)	unknown	clinical testing	Citation Link,
SCV004046079	Rady Children's Institute for Genomic Medicine, Rady Children's Hospital San Diego	criteria provided, single submitter (ACMG Guidelines, 2015)	Pathogenic	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV000194389

Genetic Services Laboratory, University of Chicago

criteria provided, single submitter

(ACMG Guidelines, 2007)

Pathogenic
(Feb 8, 2013)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

SCV001140211

Mendelics

criteria provided, single submitter

(Mendelics Assertion Criteria 2017)

Pathogenic
(May 28, 2019)

unknown

clinical testing

Citation Link,

SCV004046079

Rady Children's Institute for Genomic Medicine, Rady Children's Hospital San Diego

criteria provided, single submitter

(ACMG Guidelines, 2015)

Pathogenic

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	yes	not provided	not provided	not provided	not provided	not provided	clinical testing
not provided	unknown	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

ACMG recommendations for standards for interpretation and reporting of sequence variations: Revisions 2007.

Richards CS, Bale S, Bellissimo DB, Das S, Grody WW, Hegde MR, Lyon E, Ward BE; Molecular Subcommittee of the ACMG Laboratory Quality Assurance Committee.

Genet Med. 2008 Apr;10(4):294-300. doi: 10.1097/GIM.0b013e31816b5cae.

PubMed [citation]

PMID:: 18414213

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee.

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]

PMID:: 25741868
PMCID:: PMC4544753

Details of each submission

From Genetic Services Laboratory, University of Chicago, SCV000194389.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	yes	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Mendelics, SCV001140211.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	unknown	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Rady Children's Institute for Genomic Medicine, Rady Children's Hospital San Diego, SCV004046079.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

Description

This variant has been previously reported as a de novo change in patients with lissencephaly (PMID: 11115846, 27891766). Functional studies in patient fibroblasts demonstrated that this variant leads to exon skipping (PMID: 27891766). It is absent from the gnomAD population database and thus is presumed to be rare. Analysis of the parental samples was negative for the variant, indicating the variant likely occurred as a de novo event. Based on the available evidence, the c.569-10T>C variant is classified as Pathogenic.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	yes	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Apr 13, 2025

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