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Human Gene ALOX15B (ENST00000380183.9) from GENCODE V50
  Description: arachidonate 15-lipoxygenase type B, transcript variant d (from RefSeq NM_001141.3)
Gencode Transcript: ENST00000380183.9
Gencode Gene: ENSG00000179593.18
Transcript (Including UTRs)
   Position: hg38 chr17:8,039,059-8,049,134 Size: 10,076 Total Exon Count: 14 Strand: +
Coding Region
   Position: hg38 chr17:8,039,156-8,048,565 Size: 9,410 Coding Exon Count: 14 

Page IndexSequence and LinksUniProtKB CommentsPrimersMalaCardsCTD
RNA-Seq ExpressionMicroarray ExpressionRNA StructureProtein StructureOther SpeciesGO Annotations
mRNA DescriptionsPathwaysOther NamesMethods
Data last updated at UCSC: 2026-07-12 09:30:09

-  Comments and Description Text from UniProtKB
  ID: LX15B_HUMAN
DESCRIPTION: RecName: Full=Arachidonate 15-lipoxygenase B; Short=15-LOX-B; EC=1.13.11.33; AltName: Full=15-lipoxygenase 2; Short=15-LOX-2; AltName: Full=Arachidonate 15-lipoxygenase type II;
FUNCTION: Converts arachidonic acid exclusively to 15S- hydroperoxyeicosatetraenoic acid, while linoleic acid is less well metabolized.
CATALYTIC ACTIVITY: Arachidonate + O(2) = (5Z,8Z,11Z,13E)-(15S)- 15-hydroperoxyicosa-5,8,11,13-tetraenoate.
COFACTOR: Binds 1 iron ion per subunit (By similarity).
PATHWAY: Lipid metabolism; leukotriene D4 biosynthesis.
SUBCELLULAR LOCATION: Cytoplasm (By similarity).
TISSUE SPECIFICITY: Expressed in hair, prostate, lung and cornea.
SIMILARITY: Belongs to the lipoxygenase family.
SIMILARITY: Contains 1 lipoxygenase domain.
SIMILARITY: Contains 1 PLAT domain.
SEQUENCE CAUTION: Sequence=AAD37786.1; Type=Erroneous gene model prediction;

-  Primer design for this transcript
 

Primer3Plus can design qPCR Primers that straddle exon-exon-junctions, which amplify only cDNA, not genomic DNA.
Click here to load the transcript sequence and exon structure into Primer3Plus

Exonprimer can design one pair of Sanger sequencing primers around every exon, located in non-genic sequence.
Click here to open Exonprimer with this transcript

To design primers for a non-coding sequence, zoom to a region of interest and select from the drop-down menu: View > In External Tools > Primer3


-  MalaCards Disease Associations
  MalaCards Gene Search: ALOX15B
Diseases sorted by gene-association score: autosomal recessive congenital ichthyosis (3), prostate cancer (2)

-  Comparative Toxicogenomics Database (CTD)
  The following chemicals interact with this gene           more ... click here to view the complete list

-  RNA-Seq Expression Data from GTEx (53 Tissues, 570 Donors)
  Highest median expression: 36.42 RPKM in Prostate
Total median expression: 179.81 RPKM



View in GTEx track of Genome Browser    View at GTEx portal     View GTEx Body Map

+  Microarray Expression Data
 
Expression ratio colors:

GNF Expression Atlas 2 Data from U133A and GNF1H Chips

      
      
      
     
    
     
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-  mRNA Secondary Structure of 3' and 5' UTRs
 
RegionFold EnergyBasesEnergy/Base
Display As
5' UTR -31.8097-0.328 Picture PostScript Text
3' UTR -171.50569-0.301 Picture PostScript Text

The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.

-  Protein Domain and Structure Information
  InterPro Domains: Graphical view of domain structure
IPR008976 - Lipase_LipOase
IPR000907 - LipOase
IPR013819 - LipOase_C
IPR020834 - LipOase_CS
IPR020833 - LipOase_Fe_BS
IPR001024 - LipOase_LH2
IPR001885 - LipOase_mml

Pfam Domains:
PF00305 - Lipoxygenase
PF01477 - PLAT/LH2 domain

ModBase Predicted Comparative 3D Structure on O15296
FrontTopSide
The pictures above may be empty if there is no ModBase structure for the protein. The ModBase structure frequently covers just a fragment of the protein. You may be asked to log onto ModBase the first time you click on the pictures. It is simplest after logging in to just click on the picture again to get to the specific info on that model.

-  Orthologous Genes in Other Species
  Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
MouseRatZebrafishD. melanogasterC. elegansS. cerevisiae
Genome BrowserGenome BrowserNo orthologNo orthologNo orthologNo ortholog
Gene Details     
Gene Sorter     
MGIRGD    
Protein SequenceProtein Sequence    
AlignmentAlignment    

-  Gene Ontology (GO) Annotations with Structured Vocabulary
  Molecular Function:
GO:0005506 iron ion binding
GO:0005509 calcium ion binding
GO:0008289 lipid binding
GO:0016165 linoleate 13S-lipoxygenase activity
GO:0016491 oxidoreductase activity
GO:0016702 oxidoreductase activity, acting on single donors with incorporation of molecular oxygen, incorporation of two atoms of oxygen
GO:0036403 arachidonate 8(S)-lipoxygenase activity
GO:0046872 metal ion binding
GO:0050473 arachidonate 15-lipoxygenase activity
GO:0051213 dioxygenase activity

Biological Process:
GO:0006629 lipid metabolic process
GO:0006915 apoptotic process
GO:0008285 negative regulation of cell proliferation
GO:0010744 positive regulation of macrophage derived foam cell differentiation
GO:0019369 arachidonic acid metabolic process
GO:0019372 lipoxygenase pathway
GO:0030336 negative regulation of cell migration
GO:0030850 prostate gland development
GO:0030856 regulation of epithelial cell differentiation
GO:0035360 positive regulation of peroxisome proliferator activated receptor signaling pathway
GO:0043651 linoleic acid metabolic process
GO:0045618 positive regulation of keratinocyte differentiation
GO:0045786 negative regulation of cell cycle
GO:0045926 negative regulation of growth
GO:0051122 hepoxilin biosynthetic process
GO:0055114 oxidation-reduction process
GO:0090197 positive regulation of chemokine secretion

Cellular Component:
GO:0005622 intracellular
GO:0005634 nucleus
GO:0005737 cytoplasm
GO:0005829 cytosol
GO:0005856 cytoskeleton
GO:0005886 plasma membrane
GO:0016020 membrane
GO:0019898 extrinsic component of membrane
GO:0070062 extracellular exosome


-  Descriptions from all associated GenBank mRNAs
  KJ897317 - Synthetic construct Homo sapiens clone ccsbBroadEn_06711 PFAS gene, encodes complete protein.
AK298095 - Homo sapiens cDNA FLJ59216 complete cds, highly similar to Arachidonate 15-lipoxygenase type II (EC 1.13.11.33).
AK292779 - Homo sapiens cDNA FLJ76967 complete cds, highly similar to Homo sapiens arachidonate 15-lipoxygenase, second type (ALOX15B), mRNA.
AK300554 - Homo sapiens cDNA FLJ58498 complete cds, highly similar to Arachidonate 15-lipoxygenase type II (EC 1.13.11.33).
BC063647 - Homo sapiens arachidonate 15-lipoxygenase, type B, mRNA (cDNA clone MGC:75485 IMAGE:4804186), complete cds.
U78294 - Homo sapiens 15S-lipoxygenase mRNA, complete cds.
JD232469 - Sequence 213493 from Patent EP1572962.
BC035217 - Homo sapiens arachidonate 15-lipoxygenase, type B, mRNA (cDNA clone MGC:24958 IMAGE:4778890), complete cds.
BC033294 - Homo sapiens arachidonate 15-lipoxygenase, type B, mRNA (cDNA clone IMAGE:4780620), with apparent retained intron.
KJ896412 - Synthetic construct Homo sapiens clone ccsbBroadEn_05806 ALOX15B gene, encodes complete protein.
KJ904418 - Synthetic construct Homo sapiens clone ccsbBroadEn_13812 ALOX15B gene, encodes complete protein.
EU176579 - Synthetic construct Homo sapiens clone IMAGE:100011391; FLH171262.01L; RZPDo839F01254D arachidonate 15-lipoxygenase, type B (ALOX15B) gene, encodes complete protein.
AB590334 - Synthetic construct DNA, clone: pFN21AE1570, Homo sapiens ALOX15B gene for arachidonate 15-lipoxygenase, type B, without stop codon, in Flexi system.
DQ891345 - Synthetic construct clone IMAGE:100003975; FLH171263.01X; RZPDo839G05100D arachidonate 15-lipoxygenase, type B (ALOX15B) gene, encodes complete protein.
AF468051 - Homo sapiens 15-lipoxygenase 2 mRNA, complete cds, alternatively spliced.
AF468052 - Homo sapiens 15-lipoxygenase 2 splice variant a mRNA, complete cds, alternatively spliced.
AF468053 - Homo sapiens 15-lipoxygenase 2 splice variant b mRNA, complete cds, alternatively spliced.
AF468054 - Homo sapiens 15-lipoxygenase 2 splice variant c mRNA, complete cds, alternatively spliced.
JD336978 - Sequence 318002 from Patent EP1572962.
JD328170 - Sequence 309194 from Patent EP1572962.
JD565450 - Sequence 546474 from Patent EP1572962.
JD560017 - Sequence 541041 from Patent EP1572962.
JD200102 - Sequence 181126 from Patent EP1572962.
JD404869 - Sequence 385893 from Patent EP1572962.
JD376068 - Sequence 357092 from Patent EP1572962.
JD497800 - Sequence 478824 from Patent EP1572962.
JD543130 - Sequence 524154 from Patent EP1572962.
JD543131 - Sequence 524155 from Patent EP1572962.
JD543132 - Sequence 524156 from Patent EP1572962.
JD478466 - Sequence 459490 from Patent EP1572962.
JD478467 - Sequence 459491 from Patent EP1572962.
JD463722 - Sequence 444746 from Patent EP1572962.
JD148198 - Sequence 129222 from Patent EP1572962.
JD148199 - Sequence 129223 from Patent EP1572962.
JD540893 - Sequence 521917 from Patent EP1572962.
JD533671 - Sequence 514695 from Patent EP1572962.
JD062918 - Sequence 43942 from Patent EP1572962.
JD286986 - Sequence 268010 from Patent EP1572962.
JD286987 - Sequence 268011 from Patent EP1572962.
JD044856 - Sequence 25880 from Patent EP1572962.

-  Biochemical and Signaling Pathways
  KEGG - Kyoto Encyclopedia of Genes and Genomes
hsa00590 - Arachidonic acid metabolism
hsa01100 - Metabolic pathways

BioCyc Knowledge Library
PWY66-392 - lipoxin biosynthesis

Reactome (by CSHL, EBI, and GO)

Protein O15296 (Reactome details) participates in the following event(s):

R-HSA-2162002 Arachidonic acid is oxidised to 15S-HpETE by ALOX15/15B
R-HSA-2142770 Synthesis of 15-eicosatetraenoic acid derivatives
R-HSA-2142753 Arachidonic acid metabolism
R-HSA-8978868 Fatty acid metabolism
R-HSA-556833 Metabolism of lipids
R-HSA-1430728 Metabolism

-  Other Names for This Gene
  Alternate Gene Symbols: ALOX15B , D3DTR2, ENST00000380183.1, ENST00000380183.2, ENST00000380183.3, ENST00000380183.4, ENST00000380183.5, ENST00000380183.6, ENST00000380183.7, ENST00000380183.8, LX15B_HUMAN, NM_001141, O15296, Q8IYQ2, Q8TEV3, Q8TEV4, Q8TEV5, Q8TEV6, Q9UKM4, uc002gju.1, uc002gju.2, uc002gju.3, uc002gju.4, uc002gju.5
UCSC ID: ENST00000380183.9
RefSeq Accession: NM_001141.3
Protein: O15296 (aka LX15B_HUMAN)
CCDS: CCDS11128.1, CCDS32558.1

-  Methods, Credits, and Use Restrictions
  Click here for details on how this gene model was made and data restrictions if any.