サイクリンT1

CCNT1
PDBに登録されている構造
PDBオルソログ検索: RCSB PDBe PDBj
PDBのIDコード一覧

2PK2, 3BLH, 3BLQ, 3BLR, 3LQ5, 3MI9, 3MIA, 3MY1, 3TN8, 3TNH, 3TNI, 4BCF, 4BCG, 4BCH, 4BCI, 4BCJ, 4EC8, 4EC9, 4IMY, 4OGR, 4OR5

識別子
記号CCNT1, CCNT, CYCT1, HIVE1, cyclin T1
外部IDOMIM: 143055 MGI: 1328363 HomoloGene: 947 GeneCards: CCNT1
遺伝子の位置 (ヒト)
12番染色体 (ヒト)
染色体12番染色体 (ヒト)[1]
12番染色体 (ヒト)
CCNT1遺伝子の位置
CCNT1遺伝子の位置
バンドデータ無し開始点48,688,458 bp[1]
終点48,716,998 bp[1]
遺伝子の位置 (マウス)
15番染色体 (マウス)
染色体15番染色体 (マウス)[2]
15番染色体 (マウス)
CCNT1遺伝子の位置
CCNT1遺伝子の位置
バンドデータ無し開始点98,436,570 bp[2]
終点98,468,804 bp[2]
RNA発現パターン
さらなる参照発現データ
遺伝子オントロジー
分子機能 DNA結合
snRNA binding
クロマチン結合
7SK snRNA binding
cyclin-dependent protein serine/threonine kinase regulator activity
血漿タンパク結合
RNA polymerase binding
転写因子結合
protein serine/threonine kinase activity
プロテインキナーゼ結合
cyclin-dependent protein serine/threonine kinase activator activity
細胞の構成要素 核質
核小体
P-TEFb
細胞核
cyclin-dependent protein kinase holoenzyme complex
生物学的プロセス regulation of cyclin-dependent protein serine/threonine kinase activity
negative regulation of mRNA polyadenylation
regulation of transcription, DNA-templated
transcription elongation from RNA polymerase II promoter
transcription by RNA polymerase II
細胞分裂
タンパク質リン酸化
positive regulation of phosphorylation of RNA polymerase II C-terminal domain
positive regulation of cyclin-dependent protein serine/threonine kinase activity
positive regulation of viral transcription
細胞周期
positive regulation of transcription by RNA polymerase II
viral process
transcription, DNA-templated
snRNA transcription by RNA polymerase II
regulation of transcription by RNA polymerase II
positive regulation of DNA-templated transcription, elongation
出典:Amigo / QuickGO
オルソログ
ヒトマウス
Entrez
Ensembl
UniProt
RefSeq
(mRNA)

NM_001240
NM_001277842

NM_009833
NM_001368702

RefSeq
(タンパク質)

NP_001231
NP_001264771

NP_033963
NP_001355631

場所
(UCSC)
Chr 12: 48.69 – 48.72 MbChr 12: 98.44 – 98.47 Mb
PubMed検索[3][4]
ウィキデータ
閲覧/編集 ヒト閲覧/編集 マウス

サイクリンT1: cyclin T1)は、ヒトではCCNT1遺伝子にコードされるタンパク質である[5][6]

機能

CCNT1遺伝子にコードされるサイクリンT1タンパク質は、高度に保存されたサイクリンファミリーに属する。このファミリーのメンバーは、細胞周期を通じてそのタンパク質存在量に顕著な周期性がみられることで特徴づけられる。サイクリンはサイクリン依存性キナーゼ(CDK)の調節因子として機能する。サイクリンはそれぞれ異なる発現と分解のパターンを示し、有糸分裂の各イベントの時間的調整に寄与している。サイクリンT1はCDK9と強固に結合し、転写伸長因子P-TEFbの主要な構成要素であることが知られている。このP-TEFb複合体はHIV-1Tatタンパク質と相互作用してそのコファクターとして機能し、ウイルス転写の完全な活性化に必要かつ十分な因子であることが示されている。このCDK複合体はRNAポリメラーゼIIの最大サブユニットのC末端ドメイン(CTD)のリン酸化と調節に関与していることも知られている[7]

相互作用

サイクリンT1は次に挙げる因子と相互作用することが示されている。

出典

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000129315 - Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000011960 - Ensembl, May 2017
  3. ^ Human PubMed Reference:
  4. ^ Mouse PubMed Reference:
  5. ^ “A novel CDK9-associated C-type cyclin interacts directly with HIV-1 Tat and mediates its high-affinity, loop-specific binding to TAR RNA”. Cell 92 (4): 451–62. (March 1998). doi:10.1016/S0092-8674(00)80939-3. PMID 9491887. 
  6. ^ a b “Identification of multiple cyclin subunits of human P-TEFb”. Genes Dev. 12 (5): 755–62. (April 1998). doi:10.1101/gad.12.5.755. PMC 316581. PMID 9499409. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC316581/. 
  7. ^ Entrez Gene: CCNT1 cyclin T1”. 2023年9月16日閲覧。
  8. ^ “Interactions between the aryl hydrocarbon receptor and P-TEFb. Sequential recruitment of transcription factors and differential phosphorylation of C-terminal domain of RNA polymerase II at cyp1a1 promoter”. J. Biol. Chem. 278 (45): 44041–8. (November 2003). doi:10.1074/jbc.M306443200. PMID 12917420. 
  9. ^ a b “MAQ1 and 7SK RNA interact with CDK9/cyclin T complexes in a transcription-dependent manner”. Mol. Cell. Biol. 23 (14): 4859–69. (July 2003). doi:10.1128/mcb.23.14.4859-4869.2003. PMC 162212. PMID 12832472. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC162212/. 
  10. ^ a b “The growth factor granulin interacts with cyclin T1 and modulates P-TEFb-dependent transcription”. Mol. Cell. Biol. 23 (5): 1688–702. (March 2003). doi:10.1128/mcb.23.5.1688-1702.2003. PMC 151712. PMID 12588988. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC151712/. 
  11. ^ a b “BRCA1 cooperates with NUFIP and P-TEFb to activate transcription by RNA polymerase II”. Oncogene 23 (31): 5316–29. (July 2004). doi:10.1038/sj.onc.1207684. PMID 15107825. 
  12. ^ “The human I-mfa domain-containing protein, HIC, interacts with cyclin T1 and modulates P-TEFb-dependent transcription”. Mol. Cell. Biol. 23 (18): 6373–84. (September 2003). doi:10.1128/mcb.23.18.6373-6384.2003. PMC 193714. PMID 12944466. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC193714/. 
  13. ^ “Interaction between cyclin T1 and SCF(SKP2) targets CDK9 for ubiquitination and degradation by the proteasome”. Mol. Cell. Biol. 21 (23): 7956–70. (December 2001). doi:10.1128/MCB.21.23.7956-7970.2001. PMC 99964. PMID 11689688. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC99964/. 
  14. ^ “Physical interaction between CDK9 and B-Myb results in suppression of B-Myb gene autoregulation”. Oncogene 19 (3): 373–9. (January 2000). doi:10.1038/sj.onc.1203305. PMID 10656684. 
  15. ^ “Cyclin K functions as a CDK9 regulatory subunit and participates in RNA polymerase II transcription”. J. Biol. Chem. 274 (49): 34527–30. (December 1999). doi:10.1074/jbc.274.49.34527. PMID 10574912. 
  16. ^ “CDK9 autophosphorylation regulates high-affinity binding of the human immunodeficiency virus type 1 tat-P-TEFb complex to TAR RNA”. Mol. Cell. Biol. 20 (18): 6958–69. (September 2000). doi:10.1128/mcb.20.18.6958-6969.2000. PMC 88771. PMID 10958691. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC88771/. 
  17. ^ “c-Myc recruits P-TEFb for transcription, cellular proliferation and apoptosis”. Oncogene 22 (36): 5707–11. (August 2003). doi:10.1038/sj.onc.1206800. PMID 12944920. 
  18. ^ “Recruitment of human cyclin T1 to nuclear bodies through direct interaction with the PML protein”. EMBO J. 22 (9): 2156–66. (May 2003). doi:10.1093/emboj/cdg205. PMC 156077. PMID 12727882. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC156077/. 

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