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TBP-associated factor 2N; RNA-binding protein 56; RBP56; TAF15 RNA polymerase 2; TATA box-binding protein-associated factor 68-kd (TAF2N)
Function:
- RNA & ssDNA-binding protein that may play specific roles during transcription initiation at distinct promoters
- can enter the preinitiation complex together with the RNA polymerase 2
- belongs to the RNA polymerase 2 transcriptional multiprotein complex, together with the TATA-binding protein (TBP) & other TBP-associated factors (TAF(II)s)
- binds SF1
- Arg-206 is dimethylated, probably to asymmetric dimethylarginine
- phosphorylated upon DNA damage, probably by ATM or ATR
Structure:
- belongs to the RRM TET family
- contains 1 RanBP2-type Zn+2 finger
- contains 1 RRM domain (RNA recognition motif)
Compartment: nucleus (putative)
Alternative splicing: named isoforms=2
Expression:
- ubiquitous
- observed in all fetal & adult tissues
Pathology:
- chromosomal translocation t(9;17)(q22;q11) involving TAF2N with NR4A3 is found in a form of extraskeletal myxoid chondrosarcoma
General
nuclear protein
Properties
SIZE: MW = 62 kD
entity length = 592 aa
COMPARTMENT: cell nucleus
MOTIF: calponin homology domain
NAME: calponin homology domain
SITE: 1-208
MOTIF: Ser phosphorylation site {S97}
RNP motif
NAME: RNP motif
SITE: 234-320
FOR-BINDING-OF: ribonucleic acid
MOTIF: ribonucleoprotein-1 motif
NAME: ribonucleoprotein-1 motif
FOR-BINDING-OF: ribonucleic acid
MOTIF: ribonucleoprotein-1 motif
ribonucleoprotein-2 motif
ribonucleoprotein-2 motif
FOR-BINDING-OF: ribonucleic acid
MOTIF: ribonucleoprotein-1 motif
ribonucleoprotein-2 motif
calponin homology domain
NAME: calponin homology domain
SITE: 320-590
MOTIF: Zinc finger
NAME: Zinc finger
SITE: 354-385
EFFECTOR-BOUND: Zn+2
consensus repeat {407-413} (21)
Database Correlations
OMIM 601574
UniProt Q92804
PFAM correlations
Entrez Gene 8148
Kegg hsa:8148
References
- UniProt :accession Q92804
- Atlas of genetics & cytogenetics in oncology & haematology
http://atlasgeneticsoncology.org/genes/TAF2NID256.html
Component-of
RNA polymerase-2