Lipid metabolon in non-oleaginous fungus Aspergillus niger

The lipogenic multienzyme complex or lipid metabolon consisting of malic enzyme (ME), fatty acid synthase (FAS), acetyl-CoA carboxylase (ACC) and ATP:citrate lyase (ACL) was observed during lipid biosynthesis of an oleaginous fungus Cunninghamella bainieri 2A1. It is believed that high production of...

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Main Authors: Izyanti Ibrahim, Shuwahida Shuib, Yap, Yin Xin, Aidil Abdul Hamid
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2025
Online Access:http://journalarticle.ukm.my/25704/
http://journalarticle.ukm.my/25704/1/SML%203.pdf
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author Izyanti Ibrahim,
Shuwahida Shuib,
Yap, Yin Xin
Aidil Abdul Hamid,
author_facet Izyanti Ibrahim,
Shuwahida Shuib,
Yap, Yin Xin
Aidil Abdul Hamid,
author_sort Izyanti Ibrahim,
building UKM Institutional Repository
collection Online Access
description The lipogenic multienzyme complex or lipid metabolon consisting of malic enzyme (ME), fatty acid synthase (FAS), acetyl-CoA carboxylase (ACC) and ATP:citrate lyase (ACL) was observed during lipid biosynthesis of an oleaginous fungus Cunninghamella bainieri 2A1. It is believed that high production of fatty acid in oleaginous species is due to the association of lipogenic enzymes forming a metabolon during lipid accumulation phase. One of the significances of lipid metabolon is that it provides efficient and rapid channel of NADPH directly from ME to FAS when lipid accumulation occurs. This leads to the assumption of low lipid yield in non-oleaginous microorganisms is due to the absence of lipid metabolon in these microorganisms. Thus, the non-oleaginous filamentous fungi Aspergillus niger was studied to see the association of lipid metabolon and lipid biosynthesis. The cells of A. niger during both lipid accumulation and lipid cessation phase were used to prepare cell-free extracts using protoplasting technique. The crude proteins were then separated by Blue Native (BN)-PAGE, associated with liquid chromatography-tandem mass spectrometry (LC-MS/MS). No high molecular mass complex was detected, speculating that no lipogenic multienzyme complex was formed in non-oleaginous fungi hence very low or no storage lipid was accumulated in this fungus.
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spelling oai:generic.eprints.org:257042025-08-06T08:27:17Z http://journalarticle.ukm.my/25704/ Lipid metabolon in non-oleaginous fungus Aspergillus niger Izyanti Ibrahim, Shuwahida Shuib, Yap, Yin Xin Aidil Abdul Hamid, The lipogenic multienzyme complex or lipid metabolon consisting of malic enzyme (ME), fatty acid synthase (FAS), acetyl-CoA carboxylase (ACC) and ATP:citrate lyase (ACL) was observed during lipid biosynthesis of an oleaginous fungus Cunninghamella bainieri 2A1. It is believed that high production of fatty acid in oleaginous species is due to the association of lipogenic enzymes forming a metabolon during lipid accumulation phase. One of the significances of lipid metabolon is that it provides efficient and rapid channel of NADPH directly from ME to FAS when lipid accumulation occurs. This leads to the assumption of low lipid yield in non-oleaginous microorganisms is due to the absence of lipid metabolon in these microorganisms. Thus, the non-oleaginous filamentous fungi Aspergillus niger was studied to see the association of lipid metabolon and lipid biosynthesis. The cells of A. niger during both lipid accumulation and lipid cessation phase were used to prepare cell-free extracts using protoplasting technique. The crude proteins were then separated by Blue Native (BN)-PAGE, associated with liquid chromatography-tandem mass spectrometry (LC-MS/MS). No high molecular mass complex was detected, speculating that no lipogenic multienzyme complex was formed in non-oleaginous fungi hence very low or no storage lipid was accumulated in this fungus. Penerbit Universiti Kebangsaan Malaysia 2025 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/25704/1/SML%203.pdf Izyanti Ibrahim, and Shuwahida Shuib, and Yap, Yin Xin and Aidil Abdul Hamid, (2025) Lipid metabolon in non-oleaginous fungus Aspergillus niger. Sains Malaysiana, 54 (5). pp. 1231-1238. ISSN 0126-6039 https://www.ukm.my/jsm/english_journals/vol54num5_2025/contentsVol54num5_2025.html
spellingShingle Izyanti Ibrahim,
Shuwahida Shuib,
Yap, Yin Xin
Aidil Abdul Hamid,
Lipid metabolon in non-oleaginous fungus Aspergillus niger
title Lipid metabolon in non-oleaginous fungus Aspergillus niger
title_full Lipid metabolon in non-oleaginous fungus Aspergillus niger
title_fullStr Lipid metabolon in non-oleaginous fungus Aspergillus niger
title_full_unstemmed Lipid metabolon in non-oleaginous fungus Aspergillus niger
title_short Lipid metabolon in non-oleaginous fungus Aspergillus niger
title_sort lipid metabolon in non-oleaginous fungus aspergillus niger
url http://journalarticle.ukm.my/25704/
http://journalarticle.ukm.my/25704/
http://journalarticle.ukm.my/25704/1/SML%203.pdf