NM_001139.3(ALOX12B):c.1324C>T (p.Arg442Trp) AND Autosomal recessive congenital ichthyosis 2

Germline classification:: Uncertain significance (2 submissions)
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

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:: RCV001289919.4

Allele description [Variation Report for NM_001139.3(ALOX12B):c.1324C>T (p.Arg442Trp)]

NM_001139.3(ALOX12B):c.1324C>T (p.Arg442Trp)

Gene:

ALOX12B:arachidonate 12-lipoxygenase, 12R type [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

17p13.1

Genomic location:

Preferred name:

NM_001139.3(ALOX12B):c.1324C>T (p.Arg442Trp)

HGVS:

NC_000017.11:g.8076695G>A
NG_007099.2:g.16022C>T
NM_001139.3:c.1324C>TMANE SELECT
NP_001130.1:p.Arg442Trp
LRG_1264t1:c.1324C>T
LRG_1264:g.16022C>T
LRG_1264p1:p.Arg442Trp
NC_000017.10:g.7980013G>A
NG_007099.1:g.16009C>T
NM_001139.2:c.1324C>T

Protein change:

R442W

Links:

dbSNP: rs764862348

Molecular consequence:

NM_001139.3:c.1324C>T - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Autosomal recessive congenital ichthyosis 2 (ARCI2)
Identifiers:: MONDO: MONDO:0009439; MedGen: C3888093; Orphanet: 281122; Orphanet: 79394; OMIM: 242100

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV001477921	Institute for Human Genetics, University Medical Center Freiburg	no assertion criteria provided	Pathogenic (Jan 7, 2021)	unknown	clinical testing
SCV005415957	Juno Genomics, Hangzhou Juno Genomics, Inc	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance	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

SCV001477921

Institute for Human Genetics, University Medical Center Freiburg

no assertion criteria provided

Pathogenic
(Jan 7, 2021)

unknown

clinical testing

SCV005415957

Juno Genomics, Hangzhou Juno Genomics, Inc

criteria provided, single submitter

(ACMG Guidelines, 2015)

Uncertain significance

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	yes	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

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 Institute for Human Genetics, University Medical Center Freiburg, SCV001477921.1

#	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	yes	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Juno Genomics, Hangzhou Juno Genomics, Inc, SCV005415957.2

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

Description

Absent from controls (or at extremely low frequency if recessive) in Genome Aggregation Database, Exome Sequencing Project, 1000 Genomes Project, or Exome Aggregation Consortium.;Multiple lines of computational evidence support a deleterious effect on the gene or gene product (conservation, evolutionary, splicing impact, etc).

#	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: Oct 5, 2025

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