6,7-dimethyl-8-ribityllumazine synthase 2 - P61711 (RISB2_BRUAB)

 

Protein Feature View of PDB entries mapped to a UniProtKB sequence  

  • Number of PDB entries for P61711: 3
 
Function
Catalyzes the formation of 6,7-dimethyl-8-ribityllumazine by condensation of 5-amino-6-(D-ribitylamino)uracil with 3,4-dihydroxy-2-butanone 4-phosphate. This is the penultimate step in the biosynthesis of riboflavin. Displays low catalytic activity in comparison with the isozyme RibH1. Is a highly immunogenic protein. Activates dendritic cells (DCs) in vitro, increasing the levels of costimulatory molecules and the secretion of proinflammatory cytokines, and recruits DCs, B cells and CD8+ T cells in vivo, both effects in a TLR4-dependent manner. Induces the cross presentation of covalently attached peptides and generates a strong and long-lasting humoral immune response without adjuvants; TLR4 signaling is necessary for the induction of the cytotoxic response but not for antigen cross presentation. Elicits a TLR4-mediated protective response against B16 melanoma in mice, slowing tumor growth and prolonging mice survival. UniProt
Catalytic Activity
1-deoxy-L-glycero-tetrulose 4-phosphate + 5-amino-6-D-ribitylaminouracil = 6,7-dimethyl-8-D-ribityllumazine + 2 H2O + phosphate. UniProt
Pathway Maps
Maps:       
Reactions:
      ESCHER  BiGG
Subunit Structure
Homodecamer, arranged as a dimer of pentamers. UniProt
  • Other Gene names: ribH2, ribH, ribH-2, BruAb2_0535
This protein in other organisms (by gene name):
Legend
The Protein Feature View requires a browser that supports SVG (Scalable Vector Graphics). Mouse over tracks and labels for more information.
Data origin/color codes
The vertical color bar on the left side indicates data provenance.
Data in green originates from UniProtKB  
Variation data (sourced from UniProt) shows non-genetic variation from the ExPASy   and dbSNP   websites.
Data in yellow originates from Pfam  , by interacting with the HMMER3 web site  
Data in purple originates from Phosphosite  .
Data in orange originates from the SCOP   (version 1.75) and SCOPe   (version 2.04) classifications.
Data in grey has been calculated using BioJava  . Protein disorder predictions are based on JRONN (Troshin, P. and Barton, G. J. unpublished), a Java implementation of RONN  
  • Red: potentially disorderd region
  • Blue: probably ordered region.
Hydropathy has been calculated using a sliding window of 15 residues and summing up scores from standard hydrophobicity tables.
  • Red: hydrophobic
  • Blue: hydrophilic.
Data in lilac represent the genomic exon structure projected onto the UniProt sequence.
Data in blue originates from PDB
  • Secstruc: Secondary structure projected from representative PDB entries onto the UniProt sequence.
Sequence Mismatches It is now possible to see information about expression tags, cloning artifacts, and many other details related to sequence mismatches.
Icons represent a number of different sequence modifications that can be observed in PDB files. For example the 'T' icon T represents expression tags that have been added to the sequence. The 'E' icon E represents an engineered mutation. However, besides these two, there are many other icons. For more information about the meaning and exact position of a sequence modification, move the cursor over the icon.
Validation Track

For more details on the Validation Track (Structure Summary Page only) see the dedicated help page.

Data in red indicates combined ranges of Homology Models from SBKB   and the Protein Model Portal  
The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).
Organism icons generated by flaticon.com under CC BY. The authors are: Freepik, Icons8, OCHA, Scott de Jonge.

For more details on the Protein Feature view see the dedicated help page.