TTF2
Transcription termination factor 2
Also known as: HuF2, TTF2_HUMAN, ZGRF6
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9UNY4
- Gene
- TTF2
- Ensembl
- ENSG00000116830
- Chromosome
- 1
- Canonical length
- 1162 aa
- Protein class
- Plasma proteins, Predicted intracellular proteins
- Subcellular location
- Cytosol
OverviewNCBI Gene
This gene encodes a member of the SWI2/SNF2 family of proteins, which play a critical role in altering protein-DNA interactions. The encoded protein has been shown to have dsDNA-dependent ATPase activity and RNA polymerase II termination activity. This protein interacts with cell division cycle 5-like, associates with human splicing complexes, and plays a role in pre-mRNA splicing. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
1162 residues, UniProt reviewed canonical sequence.
>Q9UNY4|TTF2
1 MEEVRCPEHG TFCFLKTGVR DGPNKGKSFY VCRADTCSFV RATDIPVSHC LLHEDFVVEL
61 QGLLLPQDKK EYRLFFRCIR SKAEGKRWCG SIPWQDPDSK EHSVSNKSQH ASETFHHSSN
121 WLRNPFKVLD KNQEPALWKQ LIKGEGEEKK ADKKQREKGD QLFDQKKEQK PEMMEKDLSS
181 GLVPKKKQSV VQEKKQEEGA EIQCEAETGG THKRDFSEIK SQQCQGNELT RPSASSQEKS
241 SGKSQDVQRE SEPLREKVTQ LLPQNVHSHN SISKPQKGGP LNKEYTNWEA KETKAKDGPS
301 IQATQKSLPQ GHFQERPETH SVPAPGGPAA QAAPAAPGLS LGEGREAATS SDDEEEDDVV
361 FVSSKPGSPL LFDSTLDLET KENLQFPDRS VQRKVSPASG VSKKVEPSDP VARRVYLTTQ
421 LKQKKSTLAS VNIQALPDKG QKLIKQIQEL EEVLSGLTLS PEQGTNEKSN SQVPQQSHFT
481 KTTTGPPHLV PPQPLPRRGT QPVGSLELKS ACQVTAGGSS QCYRGHTNQD HVHAVWKITS
541 EAIGQLHRSL ESCPGETVVA EDPAGLKVPL LLHQKQALAW LLWRESQKPQ GGILADDMGL
601 GKTLTMIALI LTQKNQEKKE EKEKSTALTW LSKDDSCDFT SHGTLIICPA SLIHHWKNEV
661 EKRVNSNKLR VYLYHGPNRD SRARVLSTYD IVITTYSLVA KEIPTNKQEA EIPGANLNVE
721 GTSTPLLRIA WARIILDEAH NVKNPRVQTS IAVCKLQACA RWAVTGTPIQ NNLLDMYSLL
781 KFLRCSPFDE FNLWRSQVDN GSKKGGERLS ILTKSLLLRR TKDQLDSTGR PLVILPQRKF
841 QLHHLKLSED EETVYNVFFA RSRSALQSYL KRHESRGNQS GRSPNNPFSR VALEFGSEEP
901 RHSEAADSPR SSTVHILSQL LRLRQCCCHL SLLKSALDPM ELKGEGLVLS LEEQLSALTL
961 SELRDSEPSS TVSLNGTFFK MELFEGMRES TKISSLLAEL EAIQRNSASQ KSVIVSQWTN
1021 MLKVVALHLK KHGLTYATID GSVNPKQRMD LVEAFNHSRG PQVMLISLLA GGVGLNLTGG
1081 NHLFLLDMHW NPSLEDQACD RIYRVGQQKD VVIHRFVCEG TVEEKILQLQ EKKKDLAKQV
1141 LSGSGESVTK LTLADLRVLF GILocalizationUniProt · AlphaFold · HPA
Whether an antibody against TTF2 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.44
- Highest tissue expression
- 8.3 nTPM
Expression across tissuesHPA
Tissue
- thymus: 8.3 nTPM
- tonsil: 7.4 nTPM
- lymph node: 6.8 nTPM
- appendix: 6.1 nTPM
- bone marrow: 5.1 nTPM
- rectum: 5.1 nTPM
Single-cell type
- monocyte progenitors: 90 nCPM
- megakaryocyte progenitors: 65 nCPM
- erythrocyte progenitors: 59 nCPM
- megakaryocytes: 50 nCPM
- neutrophil progenitors: 45 nCPM
- basal keratinocytes: 42 nCPM
Immune cell
- intermediate monocyte: 2.8 nTPM
- T-reg: 2.7 nTPM
- myeloid DC: 2.6 nTPM
- NK-cell: 2.6 nTPM
- classical monocyte: 2.3 nTPM
- memory CD8 T-cell: 2 nTPM
Brain region
- medulla oblongata: 11 nTPM
- white matter: 9.3 nTPM
- cerebral cortex: 8.7 nTPM
- basal ganglia: 7.9 nTPM
- thalamus: 7.8 nTPM
- choroid plexus: 7.5 nTPM
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.88
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.81
- DepMap mean gene effect
- -0.7
- DepMap dependency class
- common
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 6% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- DNA repair
- DNA-templated transcription termination
- mRNA processing
- RNA splicing
- termination of RNA polymerase II transcription
Molecular functions
- ATP binding
- ATP-dependent activity, acting on DNA
- DNA binding
- helicase activity
- hydrolase activity
- zinc ion binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
- SNF2, N-terminal domain
- Helicase, C-terminal domain-like
- DNA/RNA helicase, ATP-dependent, DEAH-box type, conserved site
- Zinc finger, GRF-type
- Helicase superfamily 1/2, ATP-binding domain
- P-loop containing nucleoside triphosphate hydrolase
- SNF2-like, N-terminal domain superfamily
- SNF2/RAD5-like, C-terminal helicase domain
- SNF2-related domain
- Helicase conserved C-terminal domain
- GRF zinc finger
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of TTF2 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads TTF2 as an antibody target. Whether an autoantibody or antibody against TTF2 could matter depends on whether native TTF2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
TTF2 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label TTF2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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