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维基百科

α-胎兒蛋白

α-胎兒蛋白(英語:Alpha-Fetoprotein,縮寫AFP;又譯甲種胎儿球蛋白甲胎蛋白)是一種α-1球蛋白,由胎兒腸胃道、卵黃囊肝臟分泌,但可經由腎臟排入尿液羊水,並通過胎盤進入母體血流中。在正常妊娠時,胎兒血清中之胎兒蛋白濃度於12至14週間達到最高,而母體血清中之濃度則於28至32週間達到最高。如果羊水或母體血清中的α-胎兒蛋白超出正常範圍,需考慮胎兒發育異常,例如:神經管缺損、先天性腎病變、腸道閉鎖、死胎胎兒窘迫等。也就是說,α-胎兒蛋白雖是一項非特異指標,但對於產前評估胎兒健康狀態甚具臨床價值,也是幫助檢查胎兒異常的一項篩檢工具。

Α-胎兒蛋白
已知的結構
PDB直系同源搜索: PDBe RCSB
識別號
别名AFP;, AFPD, FETA, HPalpha fetoprotein
外部IDOMIM:104150 MGI:87951 HomoloGene:36278 GeneCards:AFP
基因位置(人类
染色体4號染色體[1]
基因座4q13.3起始73,431,138 bp[1]
终止73,456,174 bp[1]
RNA表达模式
查阅更多表达数据
直系同源
物種人類小鼠
Entrez
Ensembl
UniProt
mRNA​序列

NM_001134
​NM_001354717

NM_007423

蛋白序列

NP_001125
​NP_001341646

NP_031449

基因位置​(UCSC)Chr 4: 73.43 – 73.46 MbChr 5: 90.64 – 90.66 Mb
PubMed​查找[3][4]
維基數據
檢視/編輯人類檢視/編輯小鼠

許多肝病皆可能伴隨α-胎兒蛋白之升高,因此可作為臨床參考。例如80%-90%的肝細胞癌病人,其血液中的α-胎兒蛋白有升高之現象,故在肝病甚為流行的區域(如臺灣),利用α-胎兒蛋白及超聲波作為高危險群病人篩檢方式,成效良好。再如肝硬化病人當中有些合併有α-胎兒蛋白之升高,這可能代表肝細胞再生的持續進行;但若持續上升則須積極追蹤,找出可能的惡性變化。此外,急慢性肝炎患者血中的α-胎兒蛋白常隨著肝細胞壞死後之再生而升高。其高峰往往在轉氨基的高峰之後;其升高程度間接地反映肝細胞壞死後的再生能力,也因此常被利用作為病理變化及病程預後之參考。

參考文獻 编辑

  1. ^ 1.0 1.1 1.2 GRCh38: Ensembl release 89: ENSG00000081051 - Ensembl, May 2017
  2. ^ 2.0 2.1 2.2 GRCm38: Ensembl release 89: ENSMUSG00000054932 - Ensembl, May 2017
  3. ^ Human PubMed Reference:. National Center for Biotechnology Information, U.S. National Library of Medicine. 
  4. ^ Mouse PubMed Reference:. National Center for Biotechnology Information, U.S. National Library of Medicine. 

延伸阅读 编辑

  • Nahon JL. The regulation of albumin and alpha-fetoprotein gene expression in mammals. Biochimie. 1987, 69 (5): 445–59. PMID 2445387. doi:10.1016/0300-9084(87)90082-4. 
  • Tilghman SM. The structure and regulation of the alpha-fetoprotein and albumin genes. Oxf. Surv. Eukaryot. Genes. 1989, 2: 160–206. PMID 2474300. 
  • Mizejewski GJ. Biological role of alpha-fetoprotein in cancer: prospects for anticancer therapy. Expert Rev Anticancer Ther. 2003, 2 (6): 709–35. PMID 12503217. doi:10.1586/14737140.2.6.709. 
  • Yachnin S, Hsu R, Heinrikson RL, Miller JB. Studies on human alpha-fetoprotein. Isolation and characterization of monomeric and polymeric forms and amino-terminal sequence analysis. Biochim. Biophys. Acta. 1977, 493 (2): 418–28. PMID 70228. doi:10.1016/0005-2795(77)90198-2. 
  • Aoyagi Y, Ikenaka T, Ichida F. Comparative chemical structures of human alpha-fetoproteins from fetal serum and from ascites fluid of a patient with hepatoma. Cancer Res. 1977, 37 (10): 3663–7. PMID 71198. 
  • Aoyagi Y, Ikenaka T, Ichida F. Copper(II)-binding ability of human alpha-fetoprotein. Cancer Res. 1978, 38 (10): 3483–6. PMID 80265. 
  • Aoyagi Y, Ikenaka T, Ichida F. alpha-Fetoprotein as a carrier protein in plasma and its bilirubin-binding ability. Cancer Res. 1979, 39 (9): 3571–4. PMID 89900. 
  • Torres JM, Anel A, Uriel J. Alpha-fetoprotein-mediated uptake of fatty acids by human T lymphocytes. J. Cell. Physiol. 1992, 150 (3): 456–62. PMID 1371512. doi:10.1002/jcp.1041500305. 
  • Greenberg F, Faucett A, Rose E, et al. Congenital deficiency of alpha-fetoprotein. Am. J. Obstet. Gynecol. 1992, 167 (2): 509–11. PMID 1379776. 
  • Bansal V, Kumari K, Dixit A, Sahib MK. Interaction of human alpha fetoprotein with bilirubin. Indian J. Exp. Biol. 1991, 28 (7): 697–8. PMID 1703124. 
  • Pucci P, Siciliano R, Malorni A, et al. Human alpha-fetoprotein primary structure: a mass spectrometric study. Biochemistry. 1991, 30 (20): 5061–6. PMID 1709810. doi:10.1021/bi00234a032. 
  • Liu MC, Yu S, Sy J, et al. Tyrosine sulfation of proteins from the human hepatoma cell line HepG2. Proceedings of the National Academy of Sciences of the United States of America. 1985, 82 (21): 7160–4. PMC 390808 . PMID 2414772. doi:10.1073/pnas.82.21.7160. 
  • Gibbs PE, Zielinski R, Boyd C, Dugaiczyk A. Structure, polymorphism, and novel repeated DNA elements revealed by a complete sequence of the human alpha-fetoprotein gene. Biochemistry. 1987, 26 (5): 1332–43. PMID 2436661. doi:10.1021/bi00379a020. 
  • Sakai M, Morinaga T, Urano Y, et al. The human alpha-fetoprotein gene. Sequence organization and the 5' flanking region. J. Biol. Chem. 1985, 260 (8): 5055–60. PMID 2580830. 
  • Ruoslahti E, Pihko H, Vaheri A, et al. Alpha fetoprotein: structure and expression in man and inbred mouse strains under normal conditions and liver injury. Johns Hopkins Med. J. Suppl. 1975, 3: 249–55. PMID 4138095. 
  • Urano Y, Sakai M, Watanabe K, Tamaoki T. Tandem arrangement of the albumin and alpha-fetoprotein genes in the human genome. Gene. 1985, 32 (3): 255–61. PMID 6085063. doi:10.1016/0378-1119(84)90001-5. 
  • Beattie WG, Dugaiczyk A. Structure and evolution of human alpha-fetoprotein deduced from partial sequence of cloned cDNA. Gene. 1983, 20 (3): 415–22. PMID 6187626. doi:10.1016/0378-1119(82)90210-4. 
  • Morinaga T, Sakai M, Wegmann TG, Tamaoki T. Primary structures of human alpha-fetoprotein and its mRNA. Proceedings of the National Academy of Sciences of the United States of America. 1983, 80 (15): 4604–8. PMC 384092 . PMID 6192439. doi:10.1073/pnas.80.15.4604. 

胎兒蛋白, 此條目可参照英語維基百科相應條目来扩充, 2019年9月6日, 若您熟悉来源语言和主题, 请协助参考外语维基百科扩充条目, 请勿直接提交机械翻译, 也不要翻译不可靠, 低品质内容, 依版权协议, 译文需在编辑摘要注明来源, 或于讨论页顶部标记, href, template, translated, page, html, title, template, translated, page, translated, page, 标签, 英語, alpha, fetoprotein, 縮寫afp, 又譯甲. 此條目可参照英語維基百科相應條目来扩充 2019年9月6日 若您熟悉来源语言和主题 请协助参考外语维基百科扩充条目 请勿直接提交机械翻译 也不要翻译不可靠 低品质内容 依版权协议 译文需在编辑摘要注明来源 或于讨论页顶部标记 a href Template Translated page html title Template Translated page Translated page a 标签 a 胎兒蛋白 英語 Alpha Fetoprotein 縮寫AFP 又譯甲種胎儿球蛋白或甲胎蛋白 是一種a 1球蛋白 由胎兒腸胃道 卵黃囊及肝臟分泌 但可經由腎臟排入尿液 羊水 並通過胎盤進入母體血流中 在正常妊娠時 胎兒血清中之胎兒蛋白濃度於12至14週間達到最高 而母體血清中之濃度則於28至32週間達到最高 如果羊水或母體血清中的a 胎兒蛋白超出正常範圍 需考慮胎兒發育異常 例如 神經管缺損 先天性腎病變 腸道閉鎖 死胎 胎兒窘迫等 也就是說 a 胎兒蛋白雖是一項非特異指標 但對於產前評估胎兒健康狀態甚具臨床價值 也是幫助檢查胎兒異常的一項篩檢工具 A 胎兒蛋白已知的結構PDB直系同源搜索 PDBe RCSBPDBID列表3MRK識別號别名AFP AFPD FETA HPalpha fetoprotein外部IDOMIM 104150 MGI 87951 HomoloGene 36278 GeneCards AFP基因位置 人类 染色体4號染色體 1 基因座4q13 3起始73 431 138 bp 1 终止73 456 174 bp 1 基因位置 小鼠 染色体小鼠5号染色体 2 基因座5 E1 5 44 77 cM起始90 638 596 bp 2 终止90 656 766 bp 2 RNA表达模式查阅更多表达数据基因本體分子功能 金屬離子結合 血浆蛋白结合細胞組分 細胞外區域 細胞外空間 細胞質 endoplasmic reticulum lumen生物學過程 ovulation from ovarian follicle SMAD protein signal transduction 有性生殖 progesterone metabolic process 翻译后修饰Sources Amigo QuickGO直系同源物種人類小鼠Entrez17411576EnsemblENSG00000081051ENSMUSG00000054932UniProtP02771P02772mRNA 序列NM 001134 NM 001354717NM 007423蛋白序列NP 001125 NP 001341646NP 031449基因位置 UCSC Chr 4 73 43 73 46 MbChr 5 90 64 90 66 MbPubMed 查找 3 4 維基數據檢視 編輯人類檢視 編輯小鼠 許多肝病皆可能伴隨a 胎兒蛋白之升高 因此可作為臨床參考 例如80 90 的肝細胞癌病人 其血液中的a 胎兒蛋白有升高之現象 故在肝病甚為流行的區域 如臺灣 利用a 胎兒蛋白及超聲波作為高危險群病人篩檢方式 成效良好 再如肝硬化病人當中有些合併有a 胎兒蛋白之升高 這可能代表肝細胞再生的持續進行 但若持續上升則須積極追蹤 找出可能的惡性變化 此外 急慢性肝炎患者血中的a 胎兒蛋白常隨著肝細胞壞死後之再生而升高 其高峰往往在轉氨基的高峰之後 其升高程度間接地反映肝細胞壞死後的再生能力 也因此常被利用作為病理變化及病程預後之參考 參考文獻 编辑 1 0 1 1 1 2 GRCh38 Ensembl release 89 ENSG00000081051 Ensembl May 2017 2 0 2 1 2 2 GRCm38 Ensembl release 89 ENSMUSG00000054932 Ensembl May 2017 Human PubMed Reference National Center for Biotechnology Information U S National Library of Medicine Mouse PubMed Reference National Center for Biotechnology Information U S National Library of Medicine 延伸阅读 编辑Nahon JL The regulation of albumin and alpha fetoprotein gene expression in mammals Biochimie 1987 69 5 445 59 PMID 2445387 doi 10 1016 0300 9084 87 90082 4 Tilghman SM The structure and regulation of the alpha fetoprotein and albumin genes Oxf Surv Eukaryot Genes 1989 2 160 206 PMID 2474300 Mizejewski GJ Biological role of alpha fetoprotein in cancer prospects for anticancer therapy Expert Rev Anticancer Ther 2003 2 6 709 35 PMID 12503217 doi 10 1586 14737140 2 6 709 Yachnin S Hsu R Heinrikson RL Miller JB Studies on human alpha fetoprotein Isolation and characterization of monomeric and polymeric forms and amino terminal sequence analysis Biochim Biophys Acta 1977 493 2 418 28 PMID 70228 doi 10 1016 0005 2795 77 90198 2 Aoyagi Y Ikenaka T Ichida F Comparative chemical structures of human alpha fetoproteins from fetal serum and from ascites fluid of a patient with hepatoma Cancer Res 1977 37 10 3663 7 PMID 71198 Aoyagi Y Ikenaka T Ichida F Copper II binding ability of human alpha fetoprotein Cancer Res 1978 38 10 3483 6 PMID 80265 Aoyagi Y Ikenaka T Ichida F alpha Fetoprotein as a carrier protein in plasma and its bilirubin binding ability Cancer Res 1979 39 9 3571 4 PMID 89900 Torres JM Anel A Uriel J Alpha fetoprotein mediated uptake of fatty acids by human T lymphocytes J Cell Physiol 1992 150 3 456 62 PMID 1371512 doi 10 1002 jcp 1041500305 Greenberg F Faucett A Rose E et al Congenital deficiency of alpha fetoprotein Am J Obstet Gynecol 1992 167 2 509 11 PMID 1379776 Bansal V Kumari K Dixit A Sahib MK Interaction of human alpha fetoprotein with bilirubin Indian J Exp Biol 1991 28 7 697 8 PMID 1703124 Pucci P Siciliano R Malorni A et al Human alpha fetoprotein primary structure a mass spectrometric study Biochemistry 1991 30 20 5061 6 PMID 1709810 doi 10 1021 bi00234a032 Liu MC Yu S Sy J et al Tyrosine sulfation of proteins from the human hepatoma cell line HepG2 Proceedings of the National Academy of Sciences of the United States of America 1985 82 21 7160 4 PMC 390808 nbsp PMID 2414772 doi 10 1073 pnas 82 21 7160 Gibbs PE Zielinski R Boyd C Dugaiczyk A Structure polymorphism and novel repeated DNA elements revealed by a complete sequence of the human alpha fetoprotein gene Biochemistry 1987 26 5 1332 43 PMID 2436661 doi 10 1021 bi00379a020 Sakai M Morinaga T Urano Y et al The human alpha fetoprotein gene Sequence organization and the 5 flanking region J Biol Chem 1985 260 8 5055 60 PMID 2580830 Ruoslahti E Pihko H Vaheri A et al Alpha fetoprotein structure and expression in man and inbred mouse strains under normal conditions and liver injury Johns Hopkins Med J Suppl 1975 3 249 55 PMID 4138095 Urano Y Sakai M Watanabe K Tamaoki T Tandem arrangement of the albumin and alpha fetoprotein genes in the human genome Gene 1985 32 3 255 61 PMID 6085063 doi 10 1016 0378 1119 84 90001 5 Beattie WG Dugaiczyk A Structure and evolution of human alpha fetoprotein deduced from partial sequence of cloned cDNA Gene 1983 20 3 415 22 PMID 6187626 doi 10 1016 0378 1119 82 90210 4 Morinaga T Sakai M Wegmann TG Tamaoki T Primary structures of human alpha fetoprotein and its mRNA Proceedings of the National Academy of Sciences of the United States of America 1983 80 15 4604 8 PMC 384092 nbsp PMID 6192439 doi 10 1073 pnas 80 15 4604 取自 https zh wikipedia org w index php title A 胎兒蛋白 amp oldid 80329594, 维基百科,wiki,书籍,书籍,图书馆,

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