Tristetraprolin (TTP), also known as zinc finger protein 36 homolog (ZFP36), is a protein that in humans, mice and rats is encoded by the ZFP36 gene. [5] [6] It is a member of the TIS11 (TPA-induced sequence) family, along with butyrate response factors 1 and 2. [7]
TTP binds to AU-rich elements (AREs) in the 3'-untranslated regions (UTRs) of the mRNAs of some cytokines and promotes their degradation. For example, TTP is a component of a negative feedback loop that interferes with TNF-alpha production by destabilizing its mRNA. [8] Mice deficient in TTP develop a complex syndrome of inflammatory diseases. [8]
ZFP36 has been shown to interact with 14-3-3 protein family members, such as YWHAH, [9] and with NUP214, a member of the nuclear pore complex. [10]
Post-transcriptionally, TTP is regulated in several ways. [7] The subcellular localization of TTP is influenced by interactions with protein partners such as the 14-3-3 family of proteins. These interactions and, possibly, interactions with target mRNAs are affected by the phosphorylation state of TTP, as the protein can be posttranslationally modified by a large number of protein kinases. [7] There is some evidence that the TTP transcript may also be targeted by microRNAs, such as miR-29a. [7]
Transcriptional repressor CTCF also known as 11-zinc finger protein or CCCTC-binding factor is a transcription factor that in humans is encoded by the CTCF gene. CTCF is involved in many cellular processes, including transcriptional regulation, insulator activity, V(D)J recombination and regulation of chromatin architecture.
Methyl-CpG-binding domain protein 2 is a protein that in humans is encoded by the MBD2 gene.
Y box binding protein 1 also known as Y-box transcription factor or nuclease-sensitive element-binding protein 1 is a protein that in humans is encoded by the YBX1 gene.
C-terminal-binding protein 1 also known as CtBP1 is a protein that in humans is encoded by the CTBP1 gene. CtBP1 is one of two CtBP proteins, the other protein being CtBP2.
Complement component 1 Q subcomponent-binding protein, mitochondrial is a protein that in humans is encoded by the C1QBP gene.
Zinc finger protein RFP is a protein that in humans is encoded by the TRIM27 gene.
Splicing factor, arginine/serine-rich 9, also known as SFRS9, is a human gene encoding an SR protein involved in splice site selection in alternative splicing.
MARCKS-related protein is a protein that in humans is encoded by the MARCKSL1 gene.
RNA-binding protein 4 is a protein that in humans is encoded by the RBM4 gene.
Zinc finger and BTB domain-containing protein 7A is a protein that in humans is encoded by the ZBTB7A gene.
Transcription factor Sp2 is a protein that in humans is encoded by the SP2 gene.
Zinc finger protein 74 is a protein that in humans is encoded by the ZNF74 gene. Schizophrenia susceptibility has been associated with a mutation in this protein.
POZ-, AT hook-, and zinc finger-containing protein 1 is a protein that in humans is encoded by the PATZ1 gene.
Transcription factor RFX4 is a protein that in humans is encoded by the RFX4 gene.
Zinc finger protein 143 is a protein that in humans is encoded by the ZNF143 gene.
Butyrate response factor 1 is a protein that in humans is encoded by the ZFP36L1 gene.
MORC family CW-type zinc finger protein 3 is a protein that in humans is encoded by the MORC3 gene.
Zinc finger protein 346 is a protein that in humans is encoded by the ZNF346 gene.
Zinc finger protein 7 is a protein that in humans is encoded by the ZNF7 gene.
ZC3H12B, also known as CXorf32 or MCPIP2, is a protein encoded by gene ZC3H12B located on chromosome Xq12 in humans.