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3,7-dimethyloctan-6-enoyl-CoA + 2-oxoglutarate + O2
3,7-dimethyl-2-hydroxyocta-7-enoyl-CoA + succinate + CO2
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Substrates: 75.2 of the activity with 3-methylhexadecanoyl-CoA
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3-ethylnonanoyl-CoA + 2-oxoglutarate + O2
3-ethoxy-2-hydroxyhexadecanoyl-CoA + succinate + CO2
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Substrates: 64.7% of the activity with 3-methylhexadecanoyl-CoA
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3-methyl-5-phenyl-pentanoyl-CoA + 2-oxoglutarate + O2
2-hydroxy-3-methyl-5-phenylpentanoyl-CoA + succinate + CO2
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Substrates: 53% of the activity with 3-methylhexadecanoyl-CoA
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3-methyldodecanoyl-CoA + 2-oxoglutarate + O2
2-hydroxy-3-methyldodecanoyl-CoA + succinate + CO2
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Substrates: 110% of the activity with 3-methylhexadecanoyl-CoA
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3-methylheptanoyl-CoA + 2-oxoglutarate + O2
2-hydroxy-3-methylheptanoyl-CoA + succinate + CO2
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Substrates: 16.2% of the activity with 3-methylhexadecanoyl-CoA
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3-methylhexadecanoyl-CoA + 2-oxoglutarate + O2
2-hydroxy-3-methylhexadecanoyl-CoA + succinate + CO2
3-methylnonanoyl-CoA + 2-oxoglutarate + O2
2-hydroxy-3-methylnonanoyl-CoA + succinate + CO2
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Substrates: 111% of the activity with 3-methylhexadecanoyl-CoA
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3-methylundecanoyl-CoA + 2-oxoglutarate + O2
2-hydroxy-3-methylundecanoyl-CoA + succinate + CO2
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Substrates: 110% of the activity with 3-methylhexadecanoyl-CoA
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butanoyl-CoA + 2-oxoglutarate + O2
2-hydroxybutanoyl-CoA + succinate + CO2
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Substrates: -
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decanoyl-CoA + 2-oxoglutarate + O2
2-hydroxydecanoyl-CoA + succinate + CO2
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Substrates: -
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dodecanoyl-CoA + 2-oxoglutarate + O2
2-hydroxydodecanoyl-CoA + succinate + CO2
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Substrates: -
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hexadecanoyl-CoA + 2-oxoglutarate + O2
2-hydroxyhexadecanoyl-CoA + succinate + CO2
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Substrates: -
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hexanoyl-CoA + 2-oxoglutarate + O2
2-hydroxyhexanoyl-CoA + succinate + CO2
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Substrates: -
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isovaleryl-CoA + 2-oxoglutarate + O2
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octadecanoyl-CoA + 2-oxoglutarate + O2
2-hydroxyoctadecanoyl-CoA + succinate + CO2
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Substrates: -
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octanoyl-CoA + 2-oxoglutarate + O2
2-hydroxyoctanoyl-CoA + succinate + CO2
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Substrates: -
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phytanoyl-CoA + 2-oxoglutarate + O2
2-hydroxyphytanoyl-CoA + succinate + CO2
phytanoyl-CoA + 2-oxoglutarate + O2
alpha-hydroxyphytanoyl-CoA + succinate + CO2
tetradecanoyl-CoA + 2-oxoglutarate + O2
2-hydroxytetradecanoyl-CoA + succinate + CO2
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Substrates: -
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additional information
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3-methylhexadecanoyl-CoA + 2-oxoglutarate + O2
2-hydroxy-3-methylhexadecanoyl-CoA + succinate + CO2
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Substrates: -
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3-methylhexadecanoyl-CoA + 2-oxoglutarate + O2
2-hydroxy-3-methylhexadecanoyl-CoA + succinate + CO2
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Substrates: -
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isovaleryl-CoA + 2-oxoglutarate + O2
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Substrates: -
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isovaleryl-CoA + 2-oxoglutarate + O2
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Substrates: -
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phytanoyl-CoA + 2-oxoglutarate + O2
2-hydroxyphytanoyl-CoA + succinate + CO2
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Substrates: -
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phytanoyl-CoA + 2-oxoglutarate + O2
2-hydroxyphytanoyl-CoA + succinate + CO2
Substrates: -
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phytanoyl-CoA + 2-oxoglutarate + O2
2-hydroxyphytanoyl-CoA + succinate + CO2
Substrates: Refsums disease ia a neurological syndrome characterized by adult-onset retinitis pigmentosa, anosemia, sensory neuropathy and phytanic acidaemia. Many cases are caused by mutations in peroxidomal oxygenase phytanoyl-CoA 2-hydroxylase
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phytanoyl-CoA + 2-oxoglutarate + O2
2-hydroxyphytanoyl-CoA + succinate + CO2
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Substrates: 3R and 3S epimers are hydroxylated with approximately equal efficiency. Both unprocessed proenzyme and mature form of PAHX are fully active
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phytanoyl-CoA + 2-oxoglutarate + O2
alpha-hydroxyphytanoyl-CoA + succinate + CO2
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Substrates: -
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phytanoyl-CoA + 2-oxoglutarate + O2
alpha-hydroxyphytanoyl-CoA + succinate + CO2
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Substrates: no activity with octadecanoyl-CoA, lignoceroyl-CoA, 2-methylhexadecanoyl-CoA and 4,8,12-trimethyltridecanoyl-CoA
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phytanoyl-CoA + 2-oxoglutarate + O2
alpha-hydroxyphytanoyl-CoA + succinate + CO2
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Substrates: -
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additional information
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Substrates: interaction between PAHX and the A2 domain of the coagulation factor VIII is a part responsible for the low-level expression of factor VIII
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additional information
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Substrates: Resum disease might be characterized by an accumulation of not only phytanic acid but also ther 3-alkyl-branched fatty acids
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additional information
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Substrates: no activity with isovaleryl-CoA, 4-phenyl-3-methylbutanoyl-CoA, 3-methylpentanoyl-CoA, hexadecanoyl-CoA, octanoyl-CoA, prostanoyl-CoA or 4-methylnonaoyl-CoA. Chain length of at least seven carbon atoms is a prerequisite for PAHX-dependent hydroxylation. The optimal chain length appears to be 9-12 carbon atoms. The branch at position 3 is a prerequisite for the activity of PAHX
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Adrenoleukodystrophy
Cerebro-hepato-renal (Zellweger) syndrome, adrenoleukodystrophy, and Refsum's disease: plasma changes and skin fibroblast phytanic acid oxidase.
Chondrodysplasia Punctata, Rhizomelic
Phytanoyl-CoA hydroxylase is not only deficient in classical Refsum disease but also in rhizomelic chondrodysplasia punctata.
Deafness
Phytanic acid oxidase deficiency in childhood.
Dementia
Genes associated with the progression of neurofibrillary tangles in Alzheimer's disease.
Liver Diseases
Phytanic acid oxidase deficiency in childhood.
Lupus Nephritis
Immunophilins, Refsum disease, and lupus nephritis: the peroxisomal enzyme phytanoyl-COA alpha-hydroxylase is a new FKBP-associated protein.
Neoplasms
Identification of key genes in invasive clinically non-functioning pituitary adenoma by integrating analysis of DNA methylation and mRNA expression profiles.
Parkinson Disease
Genes associated with the progression of neurofibrillary tangles in Alzheimer's disease.
Peroxisomal Disorders
[Chondrodysplasia punctata (the Conradi-Hünermann syndrome). A clinical case report and review of the literature]
phytanoyl-coa dioxygenase deficiency
Dysmorphic syndrome with phytanic acid oxidase deficiency, abnormal very long chain fatty acids, and pipecolic acidemia: studies in four children.
phytanoyl-coa dioxygenase deficiency
Patterns of Refsum's disease. Phytanic acid oxidase deficiency.
phytanoyl-coa dioxygenase deficiency
Phytanic acid oxidase deficiency in childhood.
phytanoyl-coa dioxygenase deficiency
Phytanoyl-CoA hydroxylase deficiency. Enzymological and molecular basis of classical Refsum disease.
phytanoyl-coa dioxygenase deficiency
The Challenges of a Successful Pregnancy in a Patient with Adult Refsum's Disease due to Phytanoyl-CoA Hydroxylase Deficiency.
Refsum Disease
Ataxia with loss of Purkinje cells in a mouse model for Refsum disease.
Refsum Disease
Cerebro-hepato-renal (Zellweger) syndrome, adrenoleukodystrophy, and Refsum's disease: plasma changes and skin fibroblast phytanic acid oxidase.
Refsum Disease
Characterization of phytanic acid omega-hydroxylation in human liver microsomes.
Refsum Disease
CYP4 isoform specificity in the omega-hydroxylation of phytanic acid, a potential route to elimination of the causative agent of Refsum's disease.
Refsum Disease
Dual-specificity tyrosine-phosphorylated and regulated kinase 1A (DYRK1A) interacts with the phytanoyl-CoA alpha-hydroxylase associated protein 1 (PAHX-AP1), a brain specific protein.
Refsum Disease
Dysmorphic syndrome with phytanic acid oxidase deficiency, abnormal very long chain fatty acids, and pipecolic acidemia: studies in four children.
Refsum Disease
Human phytanoyl-CoA hydroxylase: resolution of the gene structure and the molecular basis of Refsum's disease.
Refsum Disease
Identification of a brain specific protein that associates with a refsum disease gene product, phytanoyl-CoA alpha-hydroxylase.
Refsum Disease
Identification of genetic heterogeneity in Refsum's disease.
Refsum Disease
Identification of PEX7 as the second gene involved in Refsum disease.
Refsum Disease
Immunophilins, Refsum disease, and lupus nephritis: the peroxisomal enzyme phytanoyl-COA alpha-hydroxylase is a new FKBP-associated protein.
Refsum Disease
Infantile Refsum's disease (phytanic acid storage disease): a variant of Zellweger's syndrome?
Refsum Disease
Molecular basis of Refsum disease: identification of new mutations in the phytanoyl-CoA hydroxylase cDNA.
Refsum Disease
Molecular basis of Refsum disease: sequence variations in phytanoyl-CoA hydroxylase (PHYH) and the PTS2 receptor (PEX7).
Refsum Disease
Omega-hydroxylation of phytanic acid in rat liver microsomes: implications for Refsum disease.
Refsum Disease
Patterns of Refsum's disease. Phytanic acid oxidase deficiency.
Refsum Disease
Phytanic acid metabolism in health and disease.
Refsum Disease
Phytanic acid oxidase deficiency in childhood.
Refsum Disease
Phytanoyl-CoA hydroxylase activity is induced by phytanic acid.
Refsum Disease
Phytanoyl-CoA hydroxylase deficiency. Enzymological and molecular basis of classical Refsum disease.
Refsum Disease
Phytanoyl-CoA hydroxylase is not only deficient in classical Refsum disease but also in rhizomelic chondrodysplasia punctata.
Refsum Disease
Plasma and skin fibroblast C26 fatty acids in infantile Refsum's disease.
Refsum Disease
Refsum disease is caused by mutations in the phytanoyl-CoA hydroxylase gene.
Refsum Disease
Restoration of phytanic acid oxidation in Refsum disease fibroblasts from patients with mutations in the phytanoyl-CoA hydroxylase gene.
Refsum Disease
Structure of human phytanoyl-CoA 2-hydroxylase identifies molecular mechanisms of Refsum disease.
Refsum Disease
Structure-function analysis of phytanoyl-CoA 2-hydroxylase mutations causing Refsum's disease.
Refsum Disease
The Challenges of a Successful Pregnancy in a Patient with Adult Refsum's Disease due to Phytanoyl-CoA Hydroxylase Deficiency.
Retinal Diseases
Phytanic acid oxidase deficiency in childhood.
Zellweger Syndrome
Phytanoyl-CoA hydroxylase is present in human liver, located in peroxisomes, and deficient in Zellweger syndrome: direct, unequivocal evidence for the new, revised pathway of phytanic acid alpha-oxidation in humans.
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E197Q
disruption of the 2-oxoglutarate binding pocket
F275S
places a polar side chain in a hydrophobic pocket and possibly interferes with the overall structure or impair protein folding
H213A
insoluble mutant enzyme
H259A
mutation removes two of the hydrogen bonds and probably destabilizes the beta-turn, which in turn destabilizes the core double stranded beta-helix
H264A
activity with phytanoyl-CoA is 7.5 of the wild-type activity
I199F
disruption of the 2-oxoglutarate binding pocket
N83Y
disruption of protein-protein interactions proposed to involve PAHX, such as that with sterol carrier protein-2, proposed to be responsible for solubilization and presentation of phytanoyl-CoA to PAHX
P29S
clinically observed mutant is fully active, mutation may result in a defective targeting of the protein to peroxisomes
Q176A
activity with phytanoyl-CoA is 16.3% of the wild-type activity
Q176K
mutation causes partial uncoupling of 2-oxoglutarate conversion from phytanoyl-CoA oxidation
R245Q
disruption of protein-protein interactions proposed to involve PAHX, such as that with sterol carrier protein-2, proposed to be responsible for solubilization and presentation of phytanoyl-CoA to PAHX
W193R
disruption of the 2-oxoglutarate binding pocket
D177A
mutant enzyme does not catalyze hydroxylation of phytanoyl-CoA
D177A
no activity with phytanoyl-CoA
G204S
mutation causes partial uncoupling of 2-oxoglutarate conversion from phytanoyl-CoA oxidation
G204S
disruption of the 2-oxoglutarate binding pocket, uncouples 2-oxoglutarate and phytanoyl-CoA oxidation
H175A
mutant enzyme does not catalyze hydroxylation of phytanoyl-CoA
H175A
no activity with phytanoyl-CoA
N269H
mutation causes partial uncoupling of 2-oxoglutarate conversion from phytanoyl-CoA oxidation
N269H
disruption of the 2-oxoglutarate binding pocket, uncouples 2-oxoglutarate and phytanoyl-CoA oxidation
R275Q
very low catalytic activity
R275Q
mutation results in impaired 2-oxoglutarate binding
R275W
very low catalytic activity
R275W
mutation results in impaired 2-oxoglutarate binding
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Mihalik, S.J.; Rainville, A.M.; Watkins, P.A.
Phytanic acid oxidation in rat liver peroxisomes. Production of alpha-hydroxyphytanoyl-CoA and formate is enhanced by dioxygenase cofactors
Eur. J. Biochem.
232
545-551
1995
Rattus norvegicus
brenda
Jansen, G.A.; Mihalik, S.J.; Watkins, P.A.; Moser, H.W.; Jakobs, C.; Denis, C.; Wanders, R.J.A.
Phytanoyl-CoA hydroxylase is present in human liver, located in peroxisomes, and deficient in Zellweger syndrome: direct, unequivocal evidence for the new, revised pathway of phytanic acid alpha-oxidation in humans
Biochem. Biophys. Res. Commun.
229
205-210
1996
Homo sapiens
brenda
Mihalik, S.J.; Morrell, J.C.; Kim, D.; Sacksteder, K.A.; Watkins, P.A.; Gould, S.J.
Identification of PAHX, a Refsum disease gene
Nature Genet.
17
185-189
1997
Homo sapiens
brenda
Jansen, G.A.; Mihalik, S.J.; Watkins, P.A.; Jakobs, C.; Moser, H.W.; Wanders, R.J.A.
Characterization of phytanoyl-Coenzyme A hydroxylase in human liver and activity measurements in patients with peroxisomal disorders
Clin. Chim. Acta
271
203-211
1998
Homo sapiens
brenda
Jansen, G.A.; Ofman, R.; Ferdinandusse, S.; Ijlst, L.; Muijsers, A.O.; Skjeldal, O.H.; Stokke, O.; Jakobs, C.; Besley, G.T.N.; Wraith, J.E.; Wanders, R.J.A.
Refsum disease is caused by mutations in the phytanoyl-CoA hydroxylase gene
Nature Genet.
17
190-193
1997
Homo sapiens, Rattus norvegicus
brenda
Chahal, A.; Khan, M.; Pai, S.G.; Barbosa, E.; Singh, I.
Restoration of phytanic acid oxidation in Refsum disease fibroblasts from patients with mutations in the phytanoyl-CoA hydroxylase gene
FEBS Lett.
429
119-122
1998
Homo sapiens
brenda
Jansen, G.A.; Ferdinandusse, S.; Hogenhout, E.M.; Verhoeven, N.M.; Jakobs, C.; Wanders, R.J.A.
Phytanoyl-CoA hydroxylase deficiency. Enzymological and molecular basis of classical Refsum disease
Adv. Exp. Med. Biol.
466
371-376
1999
Homo sapiens
brenda
Jansen, G.A.; Ofman, R.; Denis, S.; Ferdinandusse, S.; Hogenhout, E.M.; Jakobs, C.; Wanders, R.J.A.
Phytanoyl-CoA hydroxylase from rat liver: protein purification and cDNA cloning with implications for the subcellular localization of phytanic acid alpha-oxidation
J. Lipid Res.
40
2244-2254
1999
Rattus norvegicus
brenda
Zomer, A.W.M.; Jansen, G.A.; Van der Burg, B.; Verhoeven, N.M.; Jakobs, C.; Van der Saag, P.T.; Wanders, R.J.A.; Poll-The, B.T.
Phytanoyl-CoA hydroxylase activity is induced by phytanic acid
Eur. J. Biochem.
267
4063-4067
2000
Homo sapiens, Mus musculus, Platyrrhini, Rattus norvegicus
brenda
Croes, K.; Foulon, V.; Casteels, M.; Van Veldhoven, P.P.; Mannaerts, G.P.
Phytanoyl-CoA hydroxylase: recognition of 3-methyl-branched acyl-CoAs and requirement for GTP or ATP and Mg2+ in addition to its known hydroxylation cofactors
J. Lipid Res.
41
629-636
2000
Homo sapiens, Rattus norvegicus
brenda
Kershaw, N.J.; Mukherji, M.; MacKinnon, C.H.; Claridge, T.D.; Odell, B.; Wierzbicki, A.S.; Lloyd, M.D.; Schofield, C.J.
Studies on phytanoyl-CoA 2-hydroxylase and synthesis of phytanoyl-coenzyme A
Bioorg. Med. Chem. Lett.
11
2545-2548
2001
Homo sapiens
brenda
Mukherji, M.; Kershaw, N.J.; Schofield, C.J.; Wierzbicki, A.S.; Lloyd, M.D.
Utilization of sterol carrier protein-2 by phytanoyl-CoA 2-hydroxylase in the peroxisomal alpha oxidation of phytanic acid
Chem. Biol.
9
597-605
2002
Homo sapiens
brenda
Mukherji, M.; Chien, W.; Kershaw, N.J.; Clifton, I.J.; Schofield, C.J.; Wierzbicki, A.S.; Lloyd, M.D.
Structure-function analysis of phytanoyl-CoA 2-hydroxylase mutations causing Refsum's disease
Hum. Mol. Genet.
10
1971-1982
2001
Homo sapiens (O14832)
brenda
Chen, C.; Wang, Q.; Fang, X.; Xu, Q.; Chi, C.; Gu, J.
Roles of phytanoyl-CoA alpha-hydroxylase in mediating the expression of human coagulation factor VIII
J. Biol. Chem.
276
46340-46346
2001
Homo sapiens
brenda
Foulon, V.; Asselberghs, S.; Geens, W.; Mannaerts, G.P.; Casteels, M.; van Veldhoven, P.P.
Further studies on the substrate spectrum of phytanoyl-CoA hydroxylase: implications for Refsum disease?
J. Lipid Res.
44
2349-2355
2003
Homo sapiens
brenda
Searls, T.; Butler, D.; Chien, W.; Mukherji, M.; Lloyd, M.D.; Schofield, C.J.