1	.	.	.	.	.	.	.	.	10	.	.	.	.	.	.	.	.	.	20	.	.	.	.	.	.	.	.	.	30	.	.	.	.	.	.	.	.	.	40	.	.	.	.	.	.	.	.	.	50	.	.	.	.	.	.	.	.	.	60
Sequence		M	A	A	K	S	A	R	K	G	P	T	K	A	K	K	N	L	L	D	S	L	G	V	E	S	V	D	Y	K	D	T	A	T	L	R	V	F	I	S	D	R	G	K	I	R	S	R	G	V	T	G	L	T	V	Q	Q	Q	R	Q	V
Secondary structure
SS confidence
Disorder		?	?	?	?	?	?	?	?	?	?	?	?	?																													?									?
Disorder confidence
		.	.	.	.	.	.	.	.	.	70	.	.	.	.	.	.	.	.	.	80	.	.	.	.	.	.	.	.
Sequence		A	Q	A	I	K	N	A	R	E	M	A	L	L	P	Y	P	G	Q	D	R	Q	R	R	A	A	L	C	P
Secondary structure
SS confidence
Disorder																							?	?	?	?	?	?	?
Disorder confidence

Confidence Key High(9)                     Low (0)

? Disordered ( 25%) Alpha helix ( 41%) Beta strand ( 2%)

Rank Aligned region

PDB 3j0x chain U Region: 7 - 80 Aligned: 74 Modelled: 74 Confidence: 100.0% Identity: 39% PDB header:ribosome Chain: U: PDB Molecule:30s ribosomal protein s18; PDBTitle: structural characterization of mrna-trna translocation intermediates2 (30s ribosome of class 4b of the six classes) Phyre2 PDB 6dzk chain R Region: 1 - 78 Aligned: 78 Modelled: 78 Confidence: 100.0% Identity: 68% PDB header:ribosome Chain: R: PDB Molecule: PDBTitle: cryo-em structure of mycobacterium smegmatis c(minus) 30s ribosomal2 subunit with mpy Phyre2 PDB 5o5j chain R Region: 13 - 77 Aligned: 65 Modelled: 65 Confidence: 100.0% Identity: 55% PDB header:ribosome Chain: R: PDB Molecule:30s ribosomal protein s18 2; PDBTitle: structure of the 30s small ribosomal subunit from mycobacterium2 smegmatis Phyre2 PDB 1i94 chain R Region: 3 - 82 Aligned: 80 Modelled: 80 Confidence: 99.9% Identity: 33% Fold: DNA/RNA-binding 3-helical bundle Superfamily: Ribosomal protein S18 Family: Ribosomal protein S18 Phyre2 PDB 5aj3 chain P Region: 5 - 76 Aligned: 72 Modelled: 72 Confidence: 99.9% Identity: 28% PDB header:ribosome Chain: P: PDB Molecule:mitoribosomal protein bs16m, mrps16; PDBTitle: structure of the small subunit of the mammalian mitoribosome Phyre2 PDB 2uub chain R domain 1 Region: 13 - 82 Aligned: 70 Modelled: 70 Confidence: 99.9% Identity: 33% Fold: DNA/RNA-binding 3-helical bundle Superfamily: Ribosomal protein S18 Family: Ribosomal protein S18 Phyre2 PDB 3j6v chain R Region: 3 - 75 Aligned: 73 Modelled: 73 Confidence: 99.9% Identity: 25% PDB header:ribosome Chain: R: PDB Molecule:28s ribosomal protein s18a, mitochondrial; PDBTitle: cryo-em structure of the small subunit of the mammalian mitochondrial2 ribosome Phyre2 PDB 5aj3 chain R Region: 11 - 81 Aligned: 68 Modelled: 71 Confidence: 99.9% Identity: 35% PDB header:ribosome Chain: R: PDB Molecule:mitoribosomal protein bs18m, mrps18c; PDBTitle: structure of the small subunit of the mammalian mitoribosome Phyre2 PDB 2qal chain R domain 1 Region: 25 - 79 Aligned: 55 Modelled: 55 Confidence: 99.9% Identity: 47% Fold: DNA/RNA-binding 3-helical bundle Superfamily: Ribosomal protein S18 Family: Ribosomal protein S18 Phyre2 PDB 3df1 chain R Region: 25 - 79 Aligned: 55 Modelled: 55 Confidence: 99.9% Identity: 47% PDB header:ribosome Chain: R: PDB Molecule:30s ribosomal protein s18; PDBTitle: crystal structure of the bacterial ribosome from escherichia coli in2 complex with hygromycin b. this file contains the 30s subunit of the3 first 70s ribosome, with hygromycin b bound. the entire crystal4 structure contains two 70s ribosomes. Phyre2 PDB 3bbn chain R Region: 24 - 80 Aligned: 57 Modelled: 57 Confidence: 99.9% Identity: 42% PDB header:ribosome Chain: R: PDB Molecule:ribosomal protein s18; PDBTitle: homology model for the spinach chloroplast 30s subunit fitted to 9.4a2 cryo-em map of the 70s chlororibosome. Phyre2 PDB 1g1x chain C Region: 24 - 76 Aligned: 46 Modelled: 53 Confidence: 99.8% Identity: 41% Fold: DNA/RNA-binding 3-helical bundle Superfamily: Ribosomal protein S18 Family: Ribosomal protein S18 Phyre2 PDB 6drd chain A Region: 5 - 51 Aligned: 44 Modelled: 47 Confidence: 29.7% Identity: 25% PDB header:transferase Chain: A: PDB Molecule:dna-directed rna polymerase ii subunit rpb1; PDBTitle: rna pol ii(g) Phyre2 PDB 2pmz chain G Region: 15 - 53 Aligned: 38 Modelled: 39 Confidence: 25.8% Identity: 24% PDB header:translation, transferase Chain: G: PDB Molecule:dna-directed rna polymerase subunit a"; PDBTitle: archaeal rna polymerase from sulfolobus solfataricus Phyre2 PDB 2wb1 chain Y Region: 17 - 52 Aligned: 35 Modelled: 36 Confidence: 23.1% Identity: 23% PDB header:transcription Chain: Y: PDB Molecule:dna-directed rna polymerase rpo1c subunit; PDBTitle: the complete structure of the archaeal 13-subunit dna-2 directed rna polymerase Phyre2 PDB 3h0g chain A Region: 15 - 52 Aligned: 37 Modelled: 38 Confidence: 14.3% Identity: 24% PDB header:transcription Chain: A: PDB Molecule:dna-directed rna polymerase ii subunit rpb1; PDBTitle: rna polymerase ii from schizosaccharomyces pombe Phyre2 PDB 1twf chain A Region: 15 - 52 Aligned: 37 Modelled: 38 Confidence: 12.3% Identity: 27% Fold: beta and beta-prime subunits of DNA dependent RNA-polymerase Superfamily: beta and beta-prime subunits of DNA dependent RNA-polymerase Family: RNA-polymerase beta-prime Phyre2 PDB 4qiw chain C Region: 15 - 53 Aligned: 38 Modelled: 39 Confidence: 10.3% Identity: 24% PDB header:transcription Chain: C: PDB Molecule:dna-directed rna polymerase subunit a''; PDBTitle: crystal structure of euryarchaeal rna polymerase from thermococcus2 kodakarensis Phyre2 PDB 2k6x chain A Region: 54 - 75 Aligned: 22 Modelled: 22 Confidence: 9.8% Identity: 18% PDB header:transcription Chain: A: PDB Molecule:rna polymerase sigma factor rpod; PDBTitle: autoregulation of a group 1 bacterial sigma factor involves2 the formation of a region 1.1- induced compacted structure Phyre2 PDB 1r5t chain A Region: 48 - 77 Aligned: 30 Modelled: 30 Confidence: 8.3% Identity: 27% Fold: Cytidine deaminase-like Superfamily: Cytidine deaminase-like Family: Cytidine deaminase Phyre2 1 c3j0xU_ 2 c6dzkr_ 3 c5o5jR_ 4 d1i94r_ 5 c5aj3p_ 6 d2uubr1 7 c3j6vR_ 8 c5aj3R_ 9 d2qalr1 10 c3df1R_ 11 c3bbnR_ 12 d1g1xc_ 13 c6drdA_ 14 c2pmzG_ 15 c2wb1Y_ 16 c3h0gA_ 17 d1twfa_ 18 c4qiwC_ 19 c2k6xA_ 20 d1r5ta_ 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36