Protein Family Models

This family includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. The structure of the domain is an alpha-antiparallel beta sandwich. (from Pfam)

Date:

2024-08-14

This protein is adjacent to YfkA in B. subtilis. In other bacterial species it is fused to this protein. As YfkA contains a Radical SAM domain it suggests this domain is interacts with them. (from Pfam)

Date:

2024-08-14

Radical SAM proteins catalyse diverse reactions, including unusual methylations, isomerisation, sulphur insertion, ring formation, anaerobic oxidation and protein radical formation. [1]. 11222759. Radical SAM, a novel protein superfamily linking unresolved steps in familiar biosynthetic pathways with radical mechanisms: functional characterization using new analysis and information visualization methods. Sofia HJ, Chen G, Hetzler BG, Reyes-Spindola JF, Miller NE;. Nucleic Acids Res 2001;29:1097-1106. [2]. 17335281. Anaerobic sulfatase-maturating enzymes: radical SAM enzymes able to catalyze in vitro sulfatase post-translational modification. Benjdia A, Leprince J, Guillot A, Vaudry H, Rabot S, Berteau O;. J Am Chem Soc. 2007;129:3462-3463. [3]. 16766528. A new type of bacterial sulfatase reveals a novel maturation pathway in prokaryotes. Berteau O, Guillot A, Benjdia A, Rabot S;. J Biol Chem. 2006;281:22464-22470. (from Pfam)

Date:

2024-10-16

radical SAM/CxCxxxxC motif protein YfkAB contains an N-terminal radical SAM domain and a C-terminal domain with a CxCxxxxC motif that suggests binding to an additional metallocluster; may have a housekeeping function

Date:

2019-09-26

Members of this highly conserved family in some Firmicutes have an N-terminal radical SAM domain (PF04055) and a C-terminal PF08756 domain with a CxCxxxxC motif that suggests binding to an additional metallocluster. It appears all correct sequences in this family are about 370 amino acids in length, containing the YfkA and YfkB regions originally reported as separate ORFs in Bacillus subtilis. Partial Phylogenetic Profiling shows occurrences almost exclusively in the Bacilli, with very few examples of either lateral transfer or gene loss. The essentially monophyletic distribution suggests a housekeeping function. Members have no well-conserved gene neighborhood. The function is unknown.

Gene:

yfkAB

Date:

2021-05-12