アラニンアミノトランスフェラーゼ
WordNet
- a class of transferases that catalyze transamination (that transfer an amino group from an amino acid to another compound) (同)aminotransferase, aminopherase
- a crystalline amino acid that occurs in many proteins
UpToDate Contents
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English Journal
- Targeted Gene Silencing of TLR4 Using Liposomal Nanoparticles for Preventing Liver Ischemia Reperfusion Injury.
- Jiang N, Zhang X, Zheng X, Chen D, Zhang Y, Siu LK, Xin HB, Li R, Zhao H, Riordan N, Ichim TE, Quan D, Jevnikar AM, Chen G, Min W.SourceMulti-Organ Transplant Program, London Health Sciences Centre, London, Canada Department of Surgery, Pathology, and Medicine, University of Western Ontario, London, Canada Liver Transplant Center, The Third Affiliated Hospital of Sun Yat-sen University, Transplantation Research Institute of Sun Yat-sen University, Guangzhou, China Institute of Translational Medicine, Nanchang University, Nanchang, China Department of Liver Surgery, Peking Union Medical College Hospital, Beijing, China Medistem Panama City of Knowledge, Clayton, Republic of Panama.
- American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons.Am J Transplant.2011 Sep;11(9):1835-1844. doi: 10.1111/j.1600-6143.2011.03660.x. Epub 2011 Jul 27.
- RNAi-based therapy is a promising strategy for the prevention of ischemia-reperfusion injury (IRI). However, systemic administration of small interfering RNA (siRNA) may cause globally nonspecific targeting of all tissues, which impedes clinical use. Here we report a hepatocyte-specific delivery sys
- PMID 21794086
- Safety of low-dose oral dantrolene sodium on hepatic function.
- Kim JY, Chun S, Bang MS, Shin HI, Lee SU.SourceDepartment of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul, Korea; Department of Rehabilitation Medicine, Seoul National University Hospital, Seoul, Korea.
- Archives of physical medicine and rehabilitation.Arch Phys Med Rehabil.2011 Sep;92(9):1359-63.
- Kim JY, Chun S, Bang MS, Shin H-I, Lee S-U. Safety of low-dose oral dantrolene sodium on hepatic function.OBJECTIVE: To investigate the incidence of hepatobiliary dysfunction after administration of low-dose dantrolene sodium.DESIGN: A retrospective survey of medical records.SETTING: One secondary a
- PMID 21878205
Japanese Journal
- Interrelationship between gluconeogenesis and ureogenesis in rats fed a high fat, carbohydrate-free diet.
- 高瀬 幸子
- 日本栄養・食糧学会誌 38(2), 109-116, 1985
- … Despite elevated gluconeogenesis in those groups, the activity of hepatic enzyme of glutamic alanine transaminase (GAT), pyruvate carboxylase (PC) and arginase was different between rats fed the HF-corn oil, HF-MCT and HP diets. …
- NAID 130000861556
- CHANGES IN THE CARBOHYDRATES, PROTEINS AND NUCLEIC ACIDS IN THE OVULES OF ZEPHYRANTHES LANCASTERI AT DIFFERENT STAGES OF MATURATION
- JOHRI M.M.,MAHESHWARI S.C.
- Plant and cell physiology 7(3), 385-393, 1966-09
- … The activities of amylases, glutamic-alanine transaminase, ribonuclease and deoxyribonuclease were also studied. … The glutamic-alanine transaminase activity appears to be exclusively localized in the endosperm and is absent from the embryo. …
- NAID 110003721717
- CHANGES IN THE CARBOHYDRATES, PROTEINS AND NUCLEIC ACIDS DURING SEED DEVELOPMENT IN OPIUM POPPY
- JOHRI M.M.,MAHESHWARI SATISH C.
- Plant and cell physiology 7(1), 35-47, 1966-03
- … The activity of glutamic-alanine transaminase increases concurrently with the increase of protein in the ovules. …
- NAID 110003721684
Related Links
- Alanine transaminase or ALT is a transaminase enzyme (EC 2.6.1.2). It is also called serum glutamic-pyruvic transaminase (SGPT) or alanine aminotransferase (ALAT). ALT is found in plasma and in various bodily tissues, but is ...
- alanine transaminase /al·a·nine trans·am·i·nase/ (trans-am´ĭ-nās) an enzyme normally present in serum and body tissues, especially in the liver; it is released into the serum as a result of tissue injury, hence the concentration in the ...
★リンクテーブル★
[★]
- 英
- alanine aminotransferase, L-alanine aminotransferase, ALT
- 同
- グルタミン酸ピルビン酸トランスアミナーゼ glutamic-pyruvic transaminase, GPT
- グルタミン酸アラニントランスアミナーゼ glutamic-alanine transaminase、L-アラニン:2-オキソグルタル酸アミノトランスフェラーゼ L-alanine:2-oxoglutarateaminotransferase
- 関
- アスパラギン酸アミノ基転移酵素 AST、マクロALT。アミノ転移
概念
- 肝細胞からの逸脱酵素。肝以外での含有量は少ない。
- 旧来のGPTおなじ
- 肝細胞障害の指標 → 炎症が沈静化していれば(慢性肝炎や肝硬変の末期)、正常範囲を示しうる。
酵素
- http://www.uniprot.org/uniprot/P24298
機能
- 可逆的アミノ基転移反応を触媒する
- L-アラニン(L-alanine)+2-オキソグルタル酸(2-oxoglutarate)=ピルビン酸(pyruvate)+L-グルタミン酸(L-glutamate
- 補酵素:ピリドキサールリン酸(VB6)補酵素
- 組織の炎症や挫滅により血中に逸脱
- 消化管から由来する大量のアラニンを肝臓でピルビン酸へと変換し,糖新生の基質として供給
- 全身に存在するが、特に肝臓に多い。
臨床検査
- 基準値:4-43U/L。7-41 U/L(HIM A-3)
- 急性ウイルス肝炎
判別
- 高度上昇 :急性肝炎、劇症肝炎、ショック
- 中程度上昇:急性肝炎m慢性活動性肝炎、閉塞性黄疸
- 軽度上昇 :脂肪肝、肝硬変、アルコール性肝障害、胆石発作、肝癌、心筋梗塞(うっ血肝により肝細胞障害を来し、軽度上昇)
- ALTは慢性期な疾患でASTより優位となる。(アルコール性の肝疾患や肝硬変、肝癌は異なる)
- 急性ウイルス性肝炎(極期)、慢性肝炎、過栄養性脂肪肝
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AST
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ALT
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含有量
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3
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1
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局在
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心筋、肝臓、 骨格筋、腎臓 赤血球
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肝臓、腎臓、 心臓、骨格筋
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逸脱しやすさ
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逸脱しにくい
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逸脱しやすい
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血中半減期
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2日
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6日
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肝小葉内の分泌
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中心静脈
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辺縁
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[★]
- 関
- E、Glu、glutamate、glutamic acid、L-glutamic acid
[★]
アラニントランスアミナーゼ
- 関
- alanine aminotransferase
[★]
アラニン
- 関
- A、Ala、alanyl、L-alanine
[★]
トランスアミナーゼ