30S ribosomal protein S7 RpsG; One of the primary rRNA binding proteins, it binds directly to 16S rRNA where it nucleates assembly of the head domain of the 30S subunit. Is located at the subunit interface close to the decoding center, probably blocks exit of the E-site tRNA; Belongs to the universal ribosomal protein uS7 family.

30S ribosomal protein S5 RpsE; With S4 and S12 plays an important role in translational accuracy; Belongs to the universal ribosomal protein uS5 family.

30S ribosomal protein S15 RpsO; One of the primary rRNA binding proteins, it binds directly to 16S rRNA where it helps nucleate assembly of the platform of the 30S subunit by binding and bridging several RNA helices of the 16S rRNA.

30S ribosomal protein S19 RpsS; Protein S19 forms a complex with S13 that binds strongly to the 16S ribosomal RNA.

30S ribosomal protein S17 RpsQ; One of the primary rRNA binding proteins, it binds specifically to the 5'-end of 16S ribosomal RNA.

30S ribosomal protein S8 RpsH; One of the primary rRNA binding proteins, it binds directly to 16S rRNA central domain where it helps coordinate assembly of the platform of the 30S subunit; Belongs to the universal ribosomal protein uS8 family.

30S ribosomal protein S1 RpsA; Binds mRNA, facilitating recognition of most mRNAs by the 30S ribosomal subunit during translation initiation (By similarity). Probably plays a role in trans-translation; binds tmRNA (the product of the ssrA gene). In trans-translation Ala- aminoacylated transfer-messenger RNA (tmRNA, product of the ssrA gene; the 2 termini fold to resemble tRNA(Ala) while it encodes a short internal open reading frame (the tag peptide)) acts like a tRNA, entering the A-site of the ribosome and displacing the stalled mRNA (which is subsequently degraded). The ribosome the [...]

Rv2890c, (MTCY274.21c), len: 287 aa. rpsB, 30s ribosomal protein s2, equivalent to O33038|RS2_MYCLE|RPSB|ML1598|MLCB250.63 30S ribosomal protein S2 from Mycobacterium leprae (277 aa), FASTA scores: opt: 1593, E(): 2.3e-93, (91.5% identity in 270 aa overlap). Also highly similar to others e.g. O31212|RS2_STRCO|RPSB|SC2E1.41 from Streptomyces coelicolor (310 aa), FASTA scores: opt: 1302, E(): 6.1e-75, (70.6% identity in 289 aa overlap); Q9KA63|RPSB|BH2427 from Bacillus halodurans (244 aa), FASTA scores: opt: 991, E(): 2.3e-55, (59.6% identity in 255 aa overlap); P21464|RS2_BACSU|RPSB fro [...]