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Product Name RNF40 Chinese Name Ring finger protein40抗体 Alias BRE1 E3 ubiquitin ligase homolog B; BRE1-B; BRE1B; BRE1B_HUMAN; E3 ubiquitin protein ligase BRE1B; E3 ubiquitin-protein ligase BRE1B; Rb associated protein; RBP 95; RBP95; Ring finger protein 40; RNF 40; Rnf40; STARING; 95 kDa retinoblastoma associated protein; 95 kDa retinoblastoma protein binding protein; 95 kDa retinoblastoma-associated protein; BRE 1B; BRE1 B. Research Area Cell biology immunology Immunogen Species Rabbit Clonality Polyclonal React Species Rat, (predicted: Human, Mouse, Dog, Pig, Cow, Horse, ) Applications ELISA=1:5000-10000 IHC-P=1:100-500 IHC-F=1:100-500 IF=1:50-200 (Paraffin sections need antigen repair)
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.Theoretical molecular weight 110kDa Cellular localization The nucleus Form Liquid Concentration 1mg/ml immunogen KLH conjugated synthetic peptide derived from human RNF40: 901-1001/1001 Lsotype IgG Purification affinity purified by Protein A Buffer Solution 0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol. Storage Shipped at 4℃. Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. Attention This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. PubMed PubMed Product Detail Ubiquitination is an important mechanism through which three classes of enzymes act in concert to target short-lived or abnormal proteins for destruction. The three classes of enzymes involved in ubiquitination are the ubiquitin-activating enzymes (E1s), the ubiquitin-conjugating enzymes (E2s) and the ubiquitin-protein ligases (E3s). RNF40 (RING finger protein 40), also known as BRE1B, Staring or RBP95, is a 1,001 amino acid nuclear protein that contains one RING-type zinc finger. Expressed ubiquitously with highest expression in heart, testis and pancreas, RNF40 functions as an E3 ubiquitin-protein ligase that regulates the monoubiquitination and subsequent degradation of select residues on target proteins, such as Histone H2B and Syntaxin 1. In addition, RNF40 forms a ubiquitin ligase complex with UBCH6 (an E2 enzyme) and together, these proteins play a crucial role in regulation of the histone code. Four isoforms of RNF40 exist due to alternative splicing events.
Function:
E3 ubiquitin-protein ligase that mediates monoubiquitination of 'Lys-120' of histone H2B (H2BK120ub1). H2BK120ub1 gives a specific tag for epigenetic transcriptional activation and is also prerequisite for histone H3 'Lys-4' and 'Lys-79' methylation (H3K4me and H3K79me, respectively). Forms a ubiquitin ligase complex in cooperation with the E2 enzyme UBE2E1/UBCH6. It thereby plays a central role in histone code and gene regulation. Required for transcriptional activation of Hox genes.
Subunit:
Homodimer. Component of the RNF20/40 complex at least composed of 2 copies of RNF20/BRE1A, 2 copies of RNF40/BRE1B and UBE2E1/UBCH6. Interacts with RB1 and WAC.
Subcellular Location:
Nucleus.
Tissue Specificity:
Ubiquitously expressed. Expressed at higher level in testis, heart and pancreas, while it is only weakly expressed in lung, skeletal muscle and small intestine.
Similarity:
Belongs to the BRE1 family.
Contains 1 RING-type zinc finger.
SWISS:
O75150
Gene ID:
9810
Database links:Entrez Gene: 9810 Human
Omim: 607700 Human
SwissProt: O75150 Human
Unigene: 65238 Human
Product Picture Tissue/cell: rat testis tissue; 4% Paraformaldehyde-fixed and paraffin-embedded;
Antigen retrieval: citrate buffer ( 0.01M, pH 6.0 ), Boiling bathing for 15min; Block endogenous peroxidase by 3% Hydrogen peroxide for 30min; Blocking buffer (normal goat serum,C-0005) at 37℃ for 20 min;
Incubation: Anti-RNF40 Polyclonal Antibody, Unconjugated(SL9170R) 1:200, overnight at 4°C, followed by conjugation to the secondary antibody(SP-0023) and DAB(C-0010) staining
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