Protein of unknown function DUF127; Specifically catalyzes the AdoMet-dependent 2'-O-ribose methylation of cytidine at position 56 in tRNAs; Belongs to the aTrm56 family.

tRNA-guanine transglycosylase, various specificities; Exchanges the guanine residue with 7-cyano-7-deazaguanine (preQ0) at position 15 in the dihydrouridine loop (D-loop) of archaeal tRNAs; Belongs to the archaeosine tRNA-ribosyltransferase family.

26S proteasome subunit P45 family; ATPase which is responsible for recognizing, binding, unfolding and translocation of substrate proteins into the archaeal 20S proteasome core particle. Is essential for opening the gate of the 20S proteasome via an interaction with its C-terminus, thereby allowing substrate entry and access to the site of proteolysis. Thus, the C- termini of the proteasomal ATPase function like a 'key in a lock' to induce gate opening and therefore regulate proteolysis. Unfolding activity requires energy from ATP hydrolysis, whereas ATP binding alone promotes ATPase-2 [...]

Transcriptional regulator, XRE family; KEGG: SORBIDRAFT_10g023010; hypothetical protein; PFAM: helix-turn-helix domain protein; SMART: helix-turn-helix domain protein.

Protein of unknown function DUF46; Catalyzes the formation of CDP-2,3-bis-(O-geranylgeranyl)-sn- glycerol (CDP-archaeol) from 2,3-bis-(O-geranylgeranyl)-sn-glycerol 1- phosphate (DGGGP) and CTP. This reaction is the third ether-bond- formation step in the biosynthesis of archaeal membrane lipids.

Transcription factor TFIIE, alpha subunit; Transcription factor that plays a role in the activation of archaeal genes transcribed by RNA polymerase. Facilitates transcription initiation by enhancing TATA-box recognition by TATA-box-binding protein (Tbp), and transcription factor B (Tfb) and RNA polymerase recruitment. Not absolutely required for transcription in vitro, but particularly important in cases where Tbp or Tfb function is not optimal. It dynamically alters the nucleic acid-binding properties of RNA polymerases by stabilizing the initiation complex and destabilizing elongatio [...]

PFAM: Protein of unknown function DUF424.

PFAM: protein of unknown function DUF120; KEGG: geo:Geob_0130 HAD-superfamily hydrolase, subfamily IA, variant 3.

DNA primase small subunit; Catalytic subunit of DNA primase, an RNA polymerase that catalyzes the synthesis of short RNA molecules used as primers for DNA polymerase during DNA replication. The small subunit contains the primase catalytic core and has DNA synthesis activity on its own. Binding to the large subunit stabilizes and modulates the activity, increasing the rate of DNA synthesis while decreasing the length of the DNA fragments, and conferring RNA synthesis capability. The DNA polymerase activity may enable DNA primase to also catalyze primer extension after primer synthesis. [...]