AT-motif binding factor 1 (ATBF1) binds to the AT-rich core sequence element in the human a-fetoprotein enhancer (1). Alternative splicing generates the ATBF1-A and ATBF1-B (2,3). While ATBF1-A contains a 920-amino acid extension at the N-terminus, both ATBF1-A and ATBF1-B contain 4 DNA-binding homeobox domains (2,3). Additionally, ATBF1-A contains 23 zinc finger motifs while ATBF1-B contains 18 zinc finger motifs (1–3). The N-terminal extension unique to ATBF1-A has transcriptional repressor activity (4). In the small intestine, ATBF1-A inhibits expression of the brushborder enzyme aminopeptidase-N through direct binding to the AT motif element (5). Besides functioning in transcription regulation, ATBF1 also functions in ATPase activity (6). ATPase activity associated with ATBF1-A is DNA/RNA-dependent and requires both homeobox domains and zinc finger motifs (6). ATBF1 is highly expressed in spleen and brain tissues (7). The gene encoding human ATBF1 maps to chromosome 16q22.3-q23.1 (8).

Alpha fetoprotein enhancer binding protein; AT binding transcription factor 1; AT motif binding factor; ATBT; ZFHX3; ZFHX3_HUMAN.

Rat,Human,Mouse,Chicken,Dog,Cow,Horse,Rabbit,Sheep

IHC,IF,ICC

IHC 1:100-500
IF 1:100-500
ICC 1:100-1:400

404kD

463

Q15911

https://www.uniprot.org/uniprotkb/Q15911

Nuclear

Not found in normal gastric mucosa but found in gastric carcinoma cells (at protein level).

KLH conjugated synthetic peptide derived from human ATBF1

Rabbit

Polyclonal

IgG

affinity purified by Protein A

Liquid

0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol.

Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles.