PFAM: Ribosomal protein S21; TIGRFAM: ribosomal protein S21; HAMAP: Ribosomal protein S21; InterPro IPR001911; KEGG: sta:STHERM_c06550 30S ribosomal protein S21; PFAM: Ribosomal protein S21; SPTR: 30S ribosomal protein S21; TIGRFAM: Ribosomal protein S21; Belongs to the bacterial ribosomal protein bS21 family.

DNA topoisomerase I; Releases the supercoiling and torsional tension of DNA, which is introduced during the DNA replication and transcription, by transiently cleaving and rejoining one strand of the DNA duplex. Introduces a single-strand break via transesterification at a target site in duplex DNA. The scissile phosphodiester is attacked by the catalytic tyrosine of the enzyme, resulting in the formation of a DNA- (5'-phosphotyrosyl)-enzyme intermediate and the expulsion of a 3'-OH DNA strand. The free DNA strand then undergoes passage around the unbroken strand, thus removing DNA supe [...]

PFAM: Pyrimidine nucleoside phosphorylase C-terminal domain; Glycosyl transferase family, a/b domain; Glycosyl transferase family, helical bundle domain; TIGRFAM: pyrimidine-nucleoside phosphorylase; COGs: COG0213 Thymidine phosphorylase; InterPro IPR018090:IPR017459:IPR000312:IPR013102; KEGG: sta:STHERM_c06520 pyrimidine-nucleoside phosphorylase; PFAM: Glycosyl transferase, family 3; Glycosyl transferase, family 3, N-terminal; Pyrimidine nucleoside phosphorylase, C-terminal; SPTR: Thymidine phosphorylase; TIGRFAM: Pyrimidine-nucleoside phosphorylase, bacterial/eukaryotic.

Primosomal protein N; Involved in the restart of stalled replication forks. Recognizes and binds the arrested nascent DNA chain at stalled replication forks. It can open the DNA duplex, via its helicase activity, and promote assembly of the primosome and loading of the major replicative helicase DnaB onto DNA; Belongs to the helicase family. PriA subfamily.

ATP-dependent DNA helicase RecG; Critical role in recombination and DNA repair. Helps process Holliday junction intermediates to mature products by catalyzing branch migration. Has a DNA unwinding activity characteristic of a DNA helicase with a 3'- to 5'- polarity. Unwinds branched duplex DNA (Y- DNA); Belongs to the helicase family. RecG subfamily.

Single-strand binding protein; Plays an important role in DNA replication, recombination and repair. Binds to ssDNA and to an array of partner proteins to recruit them to their sites of action during DNA metabolism.

DNA polymerase III, beta subunit; Confers DNA tethering and processivity to DNA polymerases and other proteins. Acts as a clamp, forming a ring around DNA (a reaction catalyzed by the clamp-loading complex) which diffuses in an ATP- independent manner freely and bidirectionally along dsDNA. Initially characterized for its ability to contact the catalytic subunit of DNA polymerase III (Pol III), a complex, multichain enzyme responsible for most of the replicative synthesis in bacteria; Pol III exhibits 3'-5' exonuclease proofreading activity. The beta chain is required for initiation of [...]

Crossover junction endodeoxyribonuclease ruvC; Nuclease that resolves Holliday junction intermediates in genetic recombination. Cleaves the cruciform structure in supercoiled DNA by nicking to strands with the same polarity at sites symmetrically opposed at the junction in the homologous arms and leaves a 5'-terminal phosphate and a 3'-terminal hydroxyl group.

DNA mismatch repair protein mutS; This protein is involved in the repair of mismatches in DNA. It is possible that it carries out the mismatch recognition step. This protein has a weak ATPase activity.