Conserved Domains and Related Protein Families
Conserved Domains Detected by RPS-BLAST
Original result of RPS-BLAST against CDD database part I
ID Alignment Graph Length
Definition
E-value
Query 54
PLN00036
261
PLN00036, PLN00036, 40S ribosomal protein S4; Prov
2e-05
PTZ00118
262
PTZ00118, PTZ00118, 40S ribosomal protein S4; Prov
8e-04
>gnl|CDD|177670 PLN00036, PLN00036, 40S ribosomal protein S4; Provisional
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Score = 39.3 bits (92), Expect = 2e-05
Identities = 24/54 (44%), Positives = 28/54 (51%), Gaps = 6/54 (11%)
Query: 1 MARYLKKHQKRLNAR-----GTCSGTFAPKPLIPQTNSGSEFMPFICGPKNRLK 49
MAR LKKH KRLNA G FAPKP + E +P + +NRLK
Sbjct: 1 MARGLKKHLKRLNAPKHWMLDKLGGAFAPKP-SSGPHKKRECLPLLLILRNRLK 53
>gnl|CDD|240277 PTZ00118, PTZ00118, 40S ribosomal protein S4; Provisional
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Score = 34.5 bits (79), Expect = 8e-04
Identities = 19/54 (35%), Positives = 27/54 (50%), Gaps = 6/54 (11%)
Query: 1 MARYLKKHQKRLNARG-----TCSGTFAPKPLIPQTNSGSEFMPFICGPKNRLK 49
M + +KKH KR+NA G +APK P + E +P + +NRLK
Sbjct: 1 MGKGIKKHMKRINAPSHWMLDKLGGQYAPKT-SPGPHKLRECLPLVILLRNRLK 53
Conserved Domains Detected by HHsearch
Original result of HHsearch against CDD database
ID Alignment Graph Length
Definition
Probability
Query
54
PLN00036
261
40S ribosomal protein S4; Provisional
99.93
PTZ00118
262
40S ribosomal protein S4; Provisional
99.93
PRK04313
237
30S ribosomal protein S4e; Validated
99.89
COG1471
241
RPS4A Ribosomal protein S4E [Translation, ribosoma
99.88
PTZ00223
273
40S ribosomal protein S4; Provisional
99.88
KOG0378
263
consensus 40S ribosomal protein S4 [Translation, r
99.84
PF08071 38
RS4NT: RS4NT (NUC023) domain; InterPro: IPR013843
99.7
>PLN00036 40S ribosomal protein S4; Provisional
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Probab=99.93 E-value=7.5e-28 Score=169.54 Aligned_cols=53 Identities=47% Similarity=0.612 Sum_probs=51.9
Q ss_pred CcchhhhhhccccCCC-----ccccccccCCCCCCCCCCCCccceeeeecccccCcccC
Q 035442 1 MARYLKKHQKRLNARG-----TCSGTFAPKPLIPQTNSGSEFMPFICGPKNRLKPGRWY 54 (54)
Q Consensus 1 m~~g~~kHlKRl~AP~-----k~~~~~a~kps~pGPH~~~~slPL~i~lRd~Lk~A~~~ 54 (54)
||||+++|||||+||+ |++++|||+|| ||||+++|||||+|||||+|+||+|+
T Consensus 1 m~~g~kkHlKRl~AP~~W~l~kk~g~~a~rps-pGPH~~~eslPL~i~LRd~LkyA~t~ 58 (261)
T PLN00036 1 MARGLKKHLKRLNAPKHWMLDKLGGAFAPKPS-SGPHKKRECLPLLLILRNRLKYALTY 58 (261)
T ss_pred CCCCcccccccccCccccccccccCeeccCCC-CCCCccccccccHHHHHhHhhhhccH
Confidence 9999999999999999 99999999999 99999999999999999999999985
>PTZ00118 40S ribosomal protein S4; Provisional
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Probab=99.93 E-value=9.8e-28 Score=169.02 Aligned_cols=53 Identities=38% Similarity=0.553 Sum_probs=51.9
Q ss_pred CcchhhhhhccccCCC-----ccccccccCCCCCCCCCCCCccceeeeecccccCcccC
Q 035442 1 MARYLKKHQKRLNARG-----TCSGTFAPKPLIPQTNSGSEFMPFICGPKNRLKPGRWY 54 (54)
Q Consensus 1 m~~g~~kHlKRl~AP~-----k~~~~~a~kps~pGPH~~~~slPL~i~lRd~Lk~A~~~ 54 (54)
||||+++|||||+||+ |++++|||+|| ||||+++|||||+|||||+|+||+|+
T Consensus 1 m~~g~kkHlKRl~AP~~W~i~kk~~~~a~rps-pGPHk~~eslPL~i~LRd~LkyA~t~ 58 (262)
T PTZ00118 1 MGKGIKKHMKRINAPSHWMLDKLGGQYAPKTS-PGPHKLRECLPLVILLRNRLKYALTY 58 (262)
T ss_pred CCCCcccccccccCccccccccccceeccCCC-CCCCccccccccHHHHHhhhhhhccH
Confidence 9999999999999999 99999999999 99999999999999999999999985
>PRK04313 30S ribosomal protein S4e; Validated
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Probab=99.89 E-value=9.3e-25 Score=152.09 Aligned_cols=49 Identities=24% Similarity=0.260 Sum_probs=47.1
Q ss_pred hhhhhccccCCC-----ccccccccCCCCCCCCCCCCccceeeeecccccCcccC
Q 035442 5 LKKHQKRLNARG-----TCSGTFAPKPLIPQTNSGSEFMPFICGPKNRLKPGRWY 54 (54)
Q Consensus 5 ~~kHlKRl~AP~-----k~~~~~a~kps~pGPH~~~~slPL~i~lRd~Lk~A~~~ 54 (54)
|++|||||+||+ |++++||++|| ||||+++|||||+|||||+|+||+|+
T Consensus 1 ~~kHlKRl~AP~~W~i~kk~~~~a~kps-pGPH~~~~siPL~iiLRd~L~yA~t~ 54 (237)
T PRK04313 1 MMRHLKRLAAPKSWPIPRKEYKWTVKPS-PGPHSIEESIPLLVVLRDVLGYADTA 54 (237)
T ss_pred CCccccceeCCcccccccccceeccCCC-CCCCCcccccccHHHHHhHhhhhccH
Confidence 579999999999 99999999999 99999999999999999999999984
>COG1471 RPS4A Ribosomal protein S4E [Translation, ribosomal structure and biogenesis]
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Probab=99.88 E-value=5.8e-24 Score=149.15 Aligned_cols=51 Identities=31% Similarity=0.407 Sum_probs=49.5
Q ss_pred cchhhhhhccccCCC-----ccccccccCCCCCCCCCCCCccceeeeecccccCccc
Q 035442 2 ARYLKKHQKRLNARG-----TCSGTFAPKPLIPQTNSGSEFMPFICGPKNRLKPGRW 53 (54)
Q Consensus 2 ~~g~~kHlKRl~AP~-----k~~~~~a~kps~pGPH~~~~slPL~i~lRd~Lk~A~~ 53 (54)
|||+++|||||+||+ ||+++|+++|+ ||||++++|+||++++||+|+||++
T Consensus 1 a~g~~~HlKRl~aP~~w~i~rK~~kw~~~P~-pGPH~~~~slPL~~iiRd~LkyAd~ 56 (241)
T COG1471 1 ARGPKRHLKRLAAPKSWPIPRKTGKWAVRPS-PGPHKAEESLPLLVIIRDYLKYADN 56 (241)
T ss_pred CCchhhhhhhccCCceEEeccccceEeccCC-CCCCcccccccEEeeehhHHHhccc
Confidence 579999999999999 99999999999 9999999999999999999999987
>PTZ00223 40S ribosomal protein S4; Provisional
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Probab=99.88 E-value=3.9e-24 Score=151.55 Aligned_cols=49 Identities=37% Similarity=0.450 Sum_probs=47.2
Q ss_pred hhhhhccccCCC-----ccccccccCCCCCCCCCCCCccceeeeecccccCcccC
Q 035442 5 LKKHQKRLNARG-----TCSGTFAPKPLIPQTNSGSEFMPFICGPKNRLKPGRWY 54 (54)
Q Consensus 5 ~~kHlKRl~AP~-----k~~~~~a~kps~pGPH~~~~slPL~i~lRd~Lk~A~~~ 54 (54)
.++|||||+||+ |++++|||+|| ||||+++|||||+|||||+|+||+|+
T Consensus 2 ~kkHlKRl~AP~~W~i~kk~~~~a~rps-pGPH~~~esiPL~iiLRd~LkyA~t~ 55 (273)
T PTZ00223 2 AKKHLKRLYAPKDWMLSKLTGVFAPRPR-AGPHKLRECLPLLIIIRNRLKYALNA 55 (273)
T ss_pred ccchhhhhcCccccccccccceeccCCC-CCCCccccccccHHHHHHHhhhhccH
Confidence 479999999999 99999999999 99999999999999999999999985
>KOG0378 consensus 40S ribosomal protein S4 [Translation, ribosomal structure and biogenesis]
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Probab=99.84 E-value=3.9e-22 Score=141.26 Aligned_cols=53 Identities=42% Similarity=0.432 Sum_probs=52.1
Q ss_pred CcchhhhhhccccCCC-----ccccccccCCCCCCCCCCCCccceeeeecccccCcccC
Q 035442 1 MARYLKKHQKRLNARG-----TCSGTFAPKPLIPQTNSGSEFMPFICGPKNRLKPGRWY 54 (54)
Q Consensus 1 m~~g~~kHlKRl~AP~-----k~~~~~a~kps~pGPH~~~~slPL~i~lRd~Lk~A~~~ 54 (54)
|++|+++||||++||+ |++|+|||+|| +|||+++||+||++|+||+|+||+||
T Consensus 1 m~~g~k~hlKr~~ap~~wmldk~~G~fa~~ps-~gphk~reclpl~~~~~~~Lkya~~~ 58 (263)
T KOG0378|consen 1 MARGPKKHLKRLAAPKHWMLDKLGGVFAPMPS-SGPHKLRECLPLIVFLRNRLKYALNG 58 (263)
T ss_pred CCcchhhhhhhhcccHhheecccCcEEecCCC-CCCcccccceeEEEEeehhhhhhhcc
Confidence 8999999999999999 99999999999 99999999999999999999999986
>PF08071 RS4NT: RS4NT (NUC023) domain; InterPro: IPR013843 Ribosomes are the particles that catalyse mRNA-directed protein synthesis in all organisms
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Probab=99.70 E-value=4.3e-18 Score=91.61 Aligned_cols=33 Identities=45% Similarity=0.595 Sum_probs=19.0
Q ss_pred chhhhhhccccCCC-----ccccccccCCCCCCCCCCCC
Q 035442 3 RYLKKHQKRLNARG-----TCSGTFAPKPLIPQTNSGSE 36 (54)
Q Consensus 3 ~g~~kHlKRl~AP~-----k~~~~~a~kps~pGPH~~~~ 36 (54)
+|+++||||++||+ |++++||++|| ||||+++|
T Consensus 1 ~G~kkHlKRl~AP~~W~i~kk~~~~a~rps-pGPH~~~e 38 (38)
T PF08071_consen 1 RGPKKHLKRLAAPKSWMIDKKTGKFAPRPS-PGPHKLRE 38 (38)
T ss_dssp -S-----BCCCS-GGGT--SSSSSB------SSSS-CCC
T ss_pred CCcccccccccCCcccccccccCccccCCC-CCCccCCC
Confidence 58999999999998 99999999999 99999986
The codons of the mRNA are exposed on the ribosome to allow tRNA binding. This leads to the incorporation of amino acids into the growing polypeptide chain in accordance with the genetic information. Incoming amino acid monomers enter the ribosomal A site in the form of aminoacyl-tRNAs complexed with elongation factor Tu (EF-Tu) and GTP. The growing polypeptide chain, situated in the P site as peptidyl-tRNA, is then transferred to aminoacyl-tRNA and the new peptidyl-tRNA, extended by one residue, is translocated to the P site with the aid the elongation factor G (EF-G) and GTP as the deacylated tRNA is released from the ribosome through one or more exit sites [, ]. About 2/3 of the mass of the ribosome consists of RNA and 1/3 of protein. The proteins are named in accordance with the subunit of the ribosome which they belong to - the small (S1 to S31) and the large (L1 to L44). Usually they decorate the rRNA cores of the subunits. Many ribosomal proteins, particularly those of the large subunit, are composed of a globular, surfaced-exposed domain with long finger-like projections that extend into the rRNA core to stabilise its structure. Most of the proteins interact with multiple RNA elements, often from different domains. In the large subunit, about 1/3 of the 23S rRNA nucleotides are at least in van der Waal's contact with protein, and L22 interacts with all six domains of the 23S rRNA. Proteins S4 and S7, which initiate assembly of the 16S rRNA, are located at junctions of five and four RNA helices, respectively. In this way proteins serve to organise and stabilise the rRNA tertiary structure. While the crucial activities of decoding and peptide transfer are RNA based, proteins play an active role in functions that may have evolved to streamline the process of protein synthesis. In addition to their function in the ribosome, many ribosomal proteins have some function 'outside' the ribosome [, ]. A number of eukaryotic and archaeal ribosomal proteins can be grouped on the basis of sequence similarities. One of these families includes yeast S7 (YS6); archaeal S4e; and mammalian and plant cytoplasmic S4 []. Two highly similar isoforms of mammalian S4 exist, one coded by a gene on chromosome Y, and the other on chromosome X. These proteins have 233 to 264 amino acids. This entry represents the N-terminal region of these proteins.; PDB: 2XZM_W 2XZN_W 3U5G_E 3U5C_E.
Homologous Structure Domains