7a4h

<StructureSection load='7a4h' size='340' side='right'caption='[[7a4h]], [[Resolution|resolution]] 4.50&Aring;' scene=''>

<table><tr><td colspan='2'>[[7a4h]] is a 180 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacteriophage_lambda Bacteriophage lambda]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7A4H OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7A4H FirstGlance]. <br>

</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ribH, aq_132 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10710 Bacteriophage lambda])</td></tr>

<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7a4h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7a4h OCA], [https://pdbe.org/7a4h PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7a4h RCSB], [https://www.ebi.ac.uk/pdbsum/7a4h PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7a4h ProSAT]</span></td></tr>

== Function ==

[[https://www.uniprot.org/uniprot/REGN_LAMBD REGN_LAMBD]] Antitermination proteins positively regulate expression of the phage early and late gene operons. Bacterial host RNA polymerase modified by these antitermination proteins transcribes through termination sites that otherwise prevent expression of the regulated genes. N protein regulates the transition from the early to the middle stage of lytic development. It is a transcription antitermination protein that prevents termination at the rho-dependent tL and tR transcription termination sites.

[[Category: Bacteriophage lambda]]

[[Category: Hilvert, D]]

[[Category: Tetter, S]]

[[Category: Virus mimic]]