6o7k - Revision history

OCA at 03:46, 11 April 2020

2020-04-11T03:46:37Z

← Older revision		Revision as of 03:46, 11 April 2020
Line 3:		Line 3:
	<SX load='6o7k' size='340' side='right' viewer='molstar' caption='[[6o7k]], [[Resolution\|resolution]] 4.20Å' scene=''>		<SX load='6o7k' size='340' side='right' viewer='molstar' caption='[[6o7k]], [[Resolution\|resolution]] 4.20Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[6o7k]] is a 25 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6O7K OCA]. For a <b>guided tour on the structure components</b> use [http://~~oca~~.~~weizmann.ac.il/oca-docs~~/fgij/fg.htm?mol=6O7K FirstGlance]. <br>		<table><tr><td colspan='2'>[[6o7k]] is a 25 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6O7K OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6O7K FirstGlance]. <br>
	</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://~~oca.weizmann~~.~~ac.il/oca-docs~~/fgij/fg.htm?mol=6o7k FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6o7k OCA], [http://pdbe.org/6o7k PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6o7k RCSB], [http://www.ebi.ac.uk/pdbsum/6o7k PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6o7k ProSAT]</span></td></tr>		</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6o7k FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6o7k OCA], [http://pdbe.org/6o7k PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6o7k RCSB], [http://www.ebi.ac.uk/pdbsum/6o7k PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6o7k ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==

OCA at 23:02, 6 March 2020

2020-03-06T23:02:35Z

← Older revision		Revision as of 23:02, 6 March 2020
Line 1:		Line 1:

	==30S initiation complex==		==30S initiation complex==
	<~~StructureSection~~ load='6o7k' size='340' side='right'caption='[[6o7k]], [[Resolution\|resolution]] 4.20Å' scene=''>		<SX load='6o7k' size='340' side='right' viewer='molstar' caption='[[6o7k]], [[Resolution\|resolution]] 4.20Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[6o7k]] is a 25 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6O7K OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6O7K FirstGlance]. <br>		<table><tr><td colspan='2'>[[6o7k]] is a 25 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6O7K OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6O7K FirstGlance]. <br>
Line 7:		Line 7:
	</table>		</table>
	== Function ==		== Function ==
	[[http://www.uniprot.org/uniprot/S1D5F0_ECOLX S1D5F0_ECOLX]] 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.[HAMAP-Rule:MF_00480] [[http://www.uniprot.org/uniprot/V6FZ95_ECOLX V6FZ95_ECOLX]] Interacts with and stabilizes bases of the 16S rRNA that are involved in tRNA selection in the A site and with the mRNA backbone. Located at the interface of the 30S and 50S subunits, it traverses the body of the 30S subunit contacting proteins on the other side and probably holding the rRNA structure together. The combined cluster of proteins S8, S12 and S17 appears to hold together the shoulder and platform of the 30S subunit.[HAMAP-Rule:MF_00403][RuleBase:RU003623] With S4 and S5 plays an important role in translational accuracy.[HAMAP-Rule:MF_00403][RuleBase:RU003623~~] [[http://www.uniprot.org/uniprot/A0A376HTV6_ECOLX A0A376HTV6_ECOLX]] Binds the lower part of the 30S subunit head. Binds mRNA in the 70S ribosome, positioning it for translation.[HAMAP-Rule:MF_01309~~] [[http://www.uniprot.org/uniprot/A0A069XYI1_ECOLX A0A069XYI1_ECOLX]] One of the essential components for the initiation of protein synthesis. Protects formylmethionyl-tRNA from spontaneous hydrolysis and promotes its binding to the 30S ribosomal subunits. Also involved in the hydrolysis of GTP during the formation of the 70S ribosomal complex.[HAMAP-Rule:MF_00100][RuleBase:RU000644][SAAS:SAAS00362971] [[http://www.uniprot.org/uniprot/D8A1L7_ECOMS D8A1L7_ECOMS]] 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.[HAMAP-Rule:MF_01302] [[http://www.uniprot.org/uniprot/L3PZ69_ECOLX L3PZ69_ECOLX]] One of the primary rRNA binding proteins, it binds directly to 16S rRNA where it nucleates assembly of the body of the 30S subunit.[HAMAP-Rule:MF_01306] With S5 and S12 plays an important role in translational accuracy.[HAMAP-Rule:MF_01306] [[http://www.uniprot.org/uniprot/F4SQ43_ECOLX F4SQ43_ECOLX]] Protein S19 forms a complex with S13 that binds strongly to the 16S ribosomal RNA.[HAMAP-Rule:MF_00531] [[http://www.uniprot.org/uniprot/RS11_ECOLI RS11_ECOLI]] Located on the platform of the 30S subunit, it bridges several disparate RNA helices of the 16S rRNA. Forms part of the Shine-Dalgarno cleft in the 70S ribosome (By similarity).[HAMAP-Rule:MF_01310] [[http://www.uniprot.org/uniprot/A0A090BZT4_ECOLX A0A090BZT4_ECOLX]] Binds 16S rRNA, required for the assembly of 30S particles and may also be responsible for determining the conformation of the 16S rRNA at the A site.[HAMAP-Rule:MF_00537] [[http://www.uniprot.org/uniprot/L3BXG0_ECOLX L3BXG0_ECOLX]] Binds as a heterodimer with protein S6 to the central domain of the 16S rRNA, where it helps stabilize the platform of the 30S subunit.[HAMAP-Rule:MF_00270] [[http://www.uniprot.org/uniprot/~~S1CG62_ECOLX S1CG62_ECOLX~~]] Binds ~~together with S18~~ to 16S ribosomal RNA.[HAMAP-Rule:~~MF_00360][SAAS:SAAS00348112~~] [[http://www.uniprot.org/uniprot/~~T6N332_ECOLX T6N332_ECOLX~~]] Binds ~~directly~~ to 16S ribosomal RNA.[HAMAP-Rule:~~MF_00500~~] [[http://www.uniprot.org/uniprot/A0A1X3KX08_ECOLX A0A1X3KX08_ECOLX]] Located at the top of the head of the 30S subunit, it contacts several helices of the 16S rRNA. In the 70S ribosome it contacts the 23S rRNA (bridge B1a) and protein L5 of the 50S subunit (bridge B1b), connecting the 2 subunits; these bridges are implicated in subunit movement. Contacts the tRNAs in the A and P-sites.[HAMAP-Rule:MF_01315] [[http://www.uniprot.org/uniprot/A0A080IK26_ECOLX A0A080IK26_ECOLX]] One of the primary rRNA binding proteins, it binds specifically to the 5'-end of 16S ribosomal RNA.[HAMAP-Rule:MF_01345] [[http://www.uniprot.org/uniprot/B6I217_ECOSE B6I217_ECOSE]] Located at the back of the 30S subunit body where it stabilizes the conformation of the head with respect to the body.[HAMAP-Rule:MF_01307][SAAS:SAAS00085417] With S4 and S12 plays an important role in translational accuracy.[HAMAP-Rule:MF_01307][SAAS:SAAS00085429] [[http://www.uniprot.org/uniprot/D7XN21_ECOLX D7XN21_ECOLX]] Forms an intersubunit bridge (bridge B4) with the 23S rRNA of the 50S subunit in the ribosome.[HAMAP-Rule:MF_01343] 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.[HAMAP-Rule:MF_01343][RuleBase:RU004524] [[http://www.uniprot.org/uniprot/D7X302_ECOLX D7X302_ECOLX]] Involved in the binding of tRNA to the ribosomes.[HAMAP-Rule:MF_00508]		[[http://www.uniprot.org/uniprot/S1D5F0_ECOLX S1D5F0_ECOLX]] 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.[HAMAP-Rule:MF_00480] [[http://www.uniprot.org/uniprot/V6FZ95_ECOLX V6FZ95_ECOLX]] Interacts with and stabilizes bases of the 16S rRNA that are involved in tRNA selection in the A site and with the mRNA backbone. Located at the interface of the 30S and 50S subunits, it traverses the body of the 30S subunit contacting proteins on the other side and probably holding the rRNA structure together. The combined cluster of proteins S8, S12 and S17 appears to hold together the shoulder and platform of the 30S subunit.[HAMAP-Rule:MF_00403][RuleBase:RU003623] With S4 and S5 plays an important role in translational accuracy.[HAMAP-Rule:MF_00403][RuleBase:RU003623] [[http://www.uniprot.org/uniprot/A0A069XYI1_ECOLX A0A069XYI1_ECOLX]] One of the essential components for the initiation of protein synthesis. Protects formylmethionyl-tRNA from spontaneous hydrolysis and promotes its binding to the 30S ribosomal subunits. Also involved in the hydrolysis of GTP during the formation of the 70S ribosomal complex.[HAMAP-Rule:MF_00100][RuleBase:RU000644][SAAS:SAAS00362971] [[http://www.uniprot.org/uniprot/A0A376HTV6_ECOLX A0A376HTV6_ECOLX]] Binds the lower part of the 30S subunit head. Binds mRNA in the 70S ribosome, positioning it for translation.[HAMAP-Rule:MF_01309] [[http://www.uniprot.org/uniprot/D8A1L7_ECOMS D8A1L7_ECOMS]] 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.[HAMAP-Rule:MF_01302] [[http://www.uniprot.org/uniprot/L3PZ69_ECOLX L3PZ69_ECOLX]] One of the primary rRNA binding proteins, it binds directly to 16S rRNA where it nucleates assembly of the body of the 30S subunit.[HAMAP-Rule:MF_01306] With S5 and S12 plays an important role in translational accuracy.[HAMAP-Rule:MF_01306] [[http://www.uniprot.org/uniprot/F4SQ43_ECOLX F4SQ43_ECOLX]] Protein S19 forms a complex with S13 that binds strongly to the 16S ribosomal RNA.[HAMAP-Rule:MF_00531] [[http://www.uniprot.org/uniprot/RS11_ECOLI RS11_ECOLI]] Located on the platform of the 30S subunit, it bridges several disparate RNA helices of the 16S rRNA. Forms part of the Shine-Dalgarno cleft in the 70S ribosome (By similarity).[HAMAP-Rule:MF_01310] [[http://www.uniprot.org/uniprot/A0A090BZT4_ECOLX A0A090BZT4_ECOLX]] Binds 16S rRNA, required for the assembly of 30S particles and may also be responsible for determining the conformation of the 16S rRNA at the A site.[HAMAP-Rule:MF_00537] [[http://www.uniprot.org/uniprot/L3BXG0_ECOLX L3BXG0_ECOLX]] Binds as a heterodimer with protein S6 to the central domain of the 16S rRNA, where it helps stabilize the platform of the 30S subunit.[HAMAP-Rule:MF_00270] [[http://www.uniprot.org/uniprot/T6N332_ECOLX T6N332_ECOLX]] Binds directly to 16S ribosomal RNA.[HAMAP-Rule:MF_00500] [[http://www.uniprot.org/uniprot/S1CG62_ECOLX S1CG62_ECOLX]] Binds together with S18 to 16S ribosomal RNA.[HAMAP-Rule:MF_00360][SAAS:SAAS00348112] [[http://www.uniprot.org/uniprot/A0A1X3KX08_ECOLX A0A1X3KX08_ECOLX]] Located at the top of the head of the 30S subunit, it contacts several helices of the 16S rRNA. In the 70S ribosome it contacts the 23S rRNA (bridge B1a) and protein L5 of the 50S subunit (bridge B1b), connecting the 2 subunits; these bridges are implicated in subunit movement. Contacts the tRNAs in the A and P-sites.[HAMAP-Rule:MF_01315] [[http://www.uniprot.org/uniprot/A0A080IK26_ECOLX A0A080IK26_ECOLX]] One of the primary rRNA binding proteins, it binds specifically to the 5'-end of 16S ribosomal RNA.[HAMAP-Rule:MF_01345] [[http://www.uniprot.org/uniprot/D7XN21_ECOLX D7XN21_ECOLX]] Forms an intersubunit bridge (bridge B4) with the 23S rRNA of the 50S subunit in the ribosome.[HAMAP-Rule:MF_01343] 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.[HAMAP-Rule:MF_01343][RuleBase:RU004524] [[http://www.uniprot.org/uniprot/B6I217_ECOSE B6I217_ECOSE]] Located at the back of the 30S subunit body where it stabilizes the conformation of the head with respect to the body.[HAMAP-Rule:MF_01307][SAAS:SAAS00085417] With S4 and S12 plays an important role in translational accuracy.[HAMAP-Rule:MF_01307][SAAS:SAAS00085429] [[http://www.uniprot.org/uniprot/D7X302_ECOLX D7X302_ECOLX]] Involved in the binding of tRNA to the ribosomes.[HAMAP-Rule:MF_00508]
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
	== Publication Abstract from PubMed ==		== Publication Abstract from PubMed ==
Line 23:		Line 23:
	<references/>		<references/>
	__TOC__		__TOC__
	</~~StructureSection~~>		</SX>
	[[Category: Escherichia coli]]		[[Category: Escherichia coli]]
	[[Category: Large Structures]]		[[Category: Large Structures]]

OCA at 16:15, 29 January 2020

2020-01-29T16:15:23Z

← Older revision		Revision as of 16:15, 29 January 2020
Line 17:		Line 17:
	</div>		</div>
	<div class="pdbe-citations 6o7k" style="background-color:#fffaf0;"></div>		<div class="pdbe-citations 6o7k" style="background-color:#fffaf0;"></div>

			==See Also==
			*[[Ribosome 3D structures\|Ribosome 3D structures]]
	== References ==		== References ==
	<references/>		<references/>

OCA at 06:17, 29 May 2019

2019-05-29T06:17:16Z

← Older revision		Revision as of 06:17, 29 May 2019
Line 1:		Line 1:
	~~'''Unreleased structure'''~~

	The ~~entry 6o7k~~ is ~~ON HOLD~~		==30S initiation complex==
			<StructureSection load='6o7k' size='340' side='right'caption='[[6o7k]], [[Resolution\|resolution]] 4.20Å' scene=''>
			== Structural highlights ==
			<table><tr><td colspan='2'>[[6o7k]] is a 25 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6O7K OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6O7K FirstGlance]. <br>
			</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6o7k FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6o7k OCA], [http://pdbe.org/6o7k PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6o7k RCSB], [http://www.ebi.ac.uk/pdbsum/6o7k PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6o7k ProSAT]</span></td></tr>
			</table>
			== Function ==
			[[http://www.uniprot.org/uniprot/S1D5F0_ECOLX S1D5F0_ECOLX]] 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.[HAMAP-Rule:MF_00480] [[http://www.uniprot.org/uniprot/V6FZ95_ECOLX V6FZ95_ECOLX]] Interacts with and stabilizes bases of the 16S rRNA that are involved in tRNA selection in the A site and with the mRNA backbone. Located at the interface of the 30S and 50S subunits, it traverses the body of the 30S subunit contacting proteins on the other side and probably holding the rRNA structure together. The combined cluster of proteins S8, S12 and S17 appears to hold together the shoulder and platform of the 30S subunit.[HAMAP-Rule:MF_00403][RuleBase:RU003623] With S4 and S5 plays an important role in translational accuracy.[HAMAP-Rule:MF_00403][RuleBase:RU003623] [[http://www.uniprot.org/uniprot/A0A376HTV6_ECOLX A0A376HTV6_ECOLX]] Binds the lower part of the 30S subunit head. Binds mRNA in the 70S ribosome, positioning it for translation.[HAMAP-Rule:MF_01309] [[http://www.uniprot.org/uniprot/A0A069XYI1_ECOLX A0A069XYI1_ECOLX]] One of the essential components for the initiation of protein synthesis. Protects formylmethionyl-tRNA from spontaneous hydrolysis and promotes its binding to the 30S ribosomal subunits. Also involved in the hydrolysis of GTP during the formation of the 70S ribosomal complex.[HAMAP-Rule:MF_00100][RuleBase:RU000644][SAAS:SAAS00362971] [[http://www.uniprot.org/uniprot/D8A1L7_ECOMS D8A1L7_ECOMS]] 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.[HAMAP-Rule:MF_01302] [[http://www.uniprot.org/uniprot/L3PZ69_ECOLX L3PZ69_ECOLX]] One of the primary rRNA binding proteins, it binds directly to 16S rRNA where it nucleates assembly of the body of the 30S subunit.[HAMAP-Rule:MF_01306] With S5 and S12 plays an important role in translational accuracy.[HAMAP-Rule:MF_01306] [[http://www.uniprot.org/uniprot/F4SQ43_ECOLX F4SQ43_ECOLX]] Protein S19 forms a complex with S13 that binds strongly to the 16S ribosomal RNA.[HAMAP-Rule:MF_00531] [[http://www.uniprot.org/uniprot/RS11_ECOLI RS11_ECOLI]] Located on the platform of the 30S subunit, it bridges several disparate RNA helices of the 16S rRNA. Forms part of the Shine-Dalgarno cleft in the 70S ribosome (By similarity).[HAMAP-Rule:MF_01310] [[http://www.uniprot.org/uniprot/A0A090BZT4_ECOLX A0A090BZT4_ECOLX]] Binds 16S rRNA, required for the assembly of 30S particles and may also be responsible for determining the conformation of the 16S rRNA at the A site.[HAMAP-Rule:MF_00537] [[http://www.uniprot.org/uniprot/L3BXG0_ECOLX L3BXG0_ECOLX]] Binds as a heterodimer with protein S6 to the central domain of the 16S rRNA, where it helps stabilize the platform of the 30S subunit.[HAMAP-Rule:MF_00270] [[http://www.uniprot.org/uniprot/S1CG62_ECOLX S1CG62_ECOLX]] Binds together with S18 to 16S ribosomal RNA.[HAMAP-Rule:MF_00360][SAAS:SAAS00348112] [[http://www.uniprot.org/uniprot/T6N332_ECOLX T6N332_ECOLX]] Binds directly to 16S ribosomal RNA.[HAMAP-Rule:MF_00500] [[http://www.uniprot.org/uniprot/A0A1X3KX08_ECOLX A0A1X3KX08_ECOLX]] Located at the top of the head of the 30S subunit, it contacts several helices of the 16S rRNA. In the 70S ribosome it contacts the 23S rRNA (bridge B1a) and protein L5 of the 50S subunit (bridge B1b), connecting the 2 subunits; these bridges are implicated in subunit movement. Contacts the tRNAs in the A and P-sites.[HAMAP-Rule:MF_01315] [[http://www.uniprot.org/uniprot/A0A080IK26_ECOLX A0A080IK26_ECOLX]] One of the primary rRNA binding proteins, it binds specifically to the 5'-end of 16S ribosomal RNA.[HAMAP-Rule:MF_01345] [[http://www.uniprot.org/uniprot/B6I217_ECOSE B6I217_ECOSE]] Located at the back of the 30S subunit body where it stabilizes the conformation of the head with respect to the body.[HAMAP-Rule:MF_01307][SAAS:SAAS00085417] With S4 and S12 plays an important role in translational accuracy.[HAMAP-Rule:MF_01307][SAAS:SAAS00085429] [[http://www.uniprot.org/uniprot/D7XN21_ECOLX D7XN21_ECOLX]] Forms an intersubunit bridge (bridge B4) with the 23S rRNA of the 50S subunit in the ribosome.[HAMAP-Rule:MF_01343] 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.[HAMAP-Rule:MF_01343][RuleBase:RU004524] [[http://www.uniprot.org/uniprot/D7X302_ECOLX D7X302_ECOLX]] Involved in the binding of tRNA to the ribosomes.[HAMAP-Rule:MF_00508]
			<div style="background-color:#fffaf0;">
			== Publication Abstract from PubMed ==
			Bacterial translation initiation entails the tightly regulated joining of the 50S ribosomal subunit to an initiator transfer RNA (fMet-tRNA(fMet))-containing 30S ribosomal initiation complex (IC) to form a 70S IC that subsequently matures into a 70S elongation-competent complex (70S EC). Rapid and accurate 70S IC formation is promoted by 30S IC-bound initiation factors (IFs), which must dissociate before the resulting 70S EC can begin translation elongation(1). Although comparison of 30S(2-5) and 70S(4,6-8) IC structures have revealed that the ribosome, IFs, and fMet-tRNA(fMet) can acquire different conformations in these complexes, the timing of conformational changes during 70S IC formation, structures of any intermediates formed during these rearrangements, and contributions that these dynamics might make to the mechanism and regulation of initiation remain unknown. Moreover, the absence of a 70S EC structure obtained directly from a 70S IC formed via an IF-catalysed initiation reaction has precluded an understanding of ribosome, IF, and fMet-tRNA(fMet) rearrangements that occur upon maturation of a 70S IC into a 70S EC. Using time-resolved cryogenic electron microscopy (TR cryo-EM)(9), we report the first, near-atomic-resolution view of how a time-ordered series of conformational changes drive and regulate subunit joining, IF dissociation, and fMet-tRNA(fMet) positioning during 70S EC formation. Our results demonstrate the power of TR cryo-EM to determine how a time-ordered series of conformational changes contribute to the mechanism and regulation of one of the most fundamental processes in biology.

	~~Authors: Frank, J., Gonzalez Jr~~., ~~R.L., kaledhonkar,~~ S., Fu, Z., Caban, K., Li, W., Chen, B., Sun, M.		Late steps in bacterial translation initiation visualized using time-resolved cryo-EM.,Kaledhonkar S, Fu Z, Caban K, Li W, Chen B, Sun M, Gonzalez RL Jr, Frank J Nature. 2019 May 20. pii: 10.1038/s41586-019-1249-5. doi:, 10.1038/s41586-019-1249-5. PMID:31108498<ref>PMID:31108498</ref>

	~~Description~~: ~~30S initiation complex~~		From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
	[[Category: ~~Unreleased Structures~~]]		</div>
	[[Category: ~~Sun, M~~]]		<div class="pdbe-citations 6o7k" style="background-color:#fffaf0;"></div>
			== References ==
			<references/>
			__TOC__
			</StructureSection>
			[[Category: Escherichia coli]]
			[[Category: Large Structures]]
	[[Category: Caban, K]]		[[Category: Caban, K]]
	~~[[Category: Li, W]]~~
	[[Category: Chen, B]]		[[Category: Chen, B]]
	[[Category: ~~R.L~~]]		[[Category: Frank, J]]
	[[Category: Fu, Z]]		[[Category: Fu, Z]]
			[[Category: Gonzalez, R L]]
			[[Category: Li, W]]
			[[Category: Sun, M]]
	[[Category: Kaledhonkar, S]]		[[Category: Kaledhonkar, S]]
	[[Category: ~~Gonzalez Jr~~]]		[[Category: 30s initiation complex with if1]]
	[[Category: ~~Frank, J~~]]		[[Category: If2 and p/i trna]]
			[[Category: Ribosome]]

OCA: Protected "6o7k" [edit=sysop:move=sysop]

2019-03-13T10:19:57Z

Protected "6o7k" [edit=sysop:move=sysop]

← Older revision	Revision as of 10:19, 13 March 2019
(No difference)

OCA: New page: '''Unreleased structure''' The entry 6o7k is ON HOLD Authors: Frank, J., Gonzalez Jr., R.L., kaledhonkar, S., Fu, Z., Caban, K., Li, W., Chen, B., Sun, M. Description: 30S initiation c...

2019-03-13T10:19:55Z

New page: '''Unreleased structure''' The entry 6o7k is ON HOLD Authors: Frank, J., Gonzalez Jr., R.L., kaledhonkar, S., Fu, Z., Caban, K., Li, W., Chen, B., Sun, M. Description: 30S initiation c...

New page

'''Unreleased structure'''

The entry 6o7k is ON HOLD

Authors: Frank, J., Gonzalez Jr., R.L., kaledhonkar, S., Fu, Z., Caban, K., Li, W., Chen, B., Sun, M.

Description: 30S initiation complex
[[Category: Unreleased Structures]]
[[Category: Sun, M]]
[[Category: Caban, K]]
[[Category: Li, W]]
[[Category: Chen, B]]
[[Category: R.L]]
[[Category: Fu, Z]]
[[Category: Kaledhonkar, S]]
[[Category: Gonzalez Jr]]
[[Category: Frank, J]]