>cd00671 ArgRS_core This is the catalytic core domain of Arginyl tRNA synthetase (ArgRS). This class I enzyme is a monomer, which aminoacylates the 2'-OH of the nucleotide at the 3' of the appropriate tRNA. The core domain is based on the Rossman fold and is responsible for the ATP-dependent formation of the enzyme bound aminoacyl-adenylate. There are at least three subgroups of ArgRS. One type contains both characteristic class I HIGH and KMSKS motifs, which are involved in ATP binding. The other subtype lacks the KMSKS motif; however, it has a lysine N-terminal to the HIGH motif, which serves as the functional counterpart to the second lysine of the KMSKS motif. A third group, which is found primarily in archaea and a few bacteria, lacks both the KMSKS motif and the HIGH loop lysine.

Probab=100.00 E-value=0 Score=482.35 Aligned_cols=258 Identities=40% Similarity=0.614 Sum_probs=216.6 Q ss_pred CEECCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHCCCCCCEEECCCCCCHHHHHHHHHHHHHHHHHCCCCCCCCCHHHC Q ss_conf 10002234432244117777785689999999985066641020147753145556789875322210245000660110 Q gi|254780285|r 122 KVNIEFVSANPTGPMHVGHCRCAVVGDTLASLMAFSGYEVTREYYINDAGAQINTLALSVFWRYQQALYNNDSDLPEGYY 201 (586) Q Consensus 122 kVvVE~sSpNp~KplHVGHlRsaiIGdsi~ril~~~G~~V~r~nyvgD~G~Q~~~li~~~~~~~~~~~~~~~~~~~e~~~ 201 (586) T Consensus 1 KI~vEf~S~Np~kplHvGHlR~aiiGdslaril~~~G~~V~r~~yvnD~G~Qi~~l~~~~~~~~~~~~-~~~~~~~~~~~ 79 (267) T cd00671 1 KILVEFVSANPTGPLHVGHLRNAIIGDSLARILEFAGYDVTREYYINDWGRQIGLLILSLEKRGLELL-GEDKELPPDGY 79 (267) T ss_pred CEEEEECCCCCCCCCCHHHHHHHHHHHHHHHHHHHCCCEEEEEEECCCCCHHHHHHHHHHHHHHCCCC-CCCCCCCCCCH T ss_conf 95988558999998503103638999999999998799588988507860999999999999720003-44457997303 Q ss_pred CCCCHHHHHHHHHHH-----HHHHHHCCCCH--HHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCEECHHHHHHCCHHHHH Q ss_conf 241000012788888-----75764134302--37999999978998875455588708752100015887301045799 Q gi|254780285|r 202 PGVYLKHVGKELADK-----YSSELLNFPEE--KWLPIVKDYSVQAMMKIIRDDLKALNIQHDIFISEDDFHRGDPSPIR 274 (586) Q Consensus 202 ~~~y~~~~~~e~~~~-----~~~~~~~~~e~--~~~~~~~~~~~~~~~~~~~~~l~~l~i~fD~~~~Es~~~~~~~~~i~ 274 (586) T Consensus 80 ~g~~y~~~~~~~~~~~~~~~~~~~~~~~le~~d~~~~~~~~~~~~~~i~~~~~~~~~l~-~fD~~~~ES~~~----~~~~ 154 (267) T cd00671 80 LGEYYVEIAKRLEEDEEFEERAEELEKKLESGDEETIKLWRKLVLESIKADLETYGVLD-RFDVWFGESSYL----GEMG 154 (267) T ss_pred HHHHHHHHHHHHHHCCCHHHHHHHHHHHHHCCCHHHHHHHHHHHHHHHHHHHHHHCCCC-CCCEEECHHHHH----CCHH T ss_conf 45789999999885844777768999865438899999999999999999999976666-663263388762----5278 Q ss_pred HHHHHHHHCCCCCCCCCCCCCCCCCCCCCCCCCCEEEEHHHCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHH-CCCCCCC Q ss_conf 999999974985113426755565420002478156510110222222210246521356888999999752-2555433 Q gi|254780285|r 275 DIIDNLARQGYVYEGILPPPKSKTTQKCDMDRKQLLFRSTMVGDDVDRPLLKSDGSYTYFAADLAYFKCKYE-RGFDNMI 353 (586) Q Consensus 275 ~~i~~l~~~g~~~e~~~~~~~~~~~~~~~~~~~~~~~~~~~~g~~~d~vl~rsDGt~~Y~t~DiA~~~~k~e-~~~d~~i 353 (586) T Consensus 155 ~v~~~L~~~~~~~~---------------e~dGA~~~~~~~~gd~~~~vl~ksDG~~tY~~~DiAy~~~K~~~~~~D~~I 219 (267) T cd00671 155 KVVELLEELGLLVY---------------EEDGALWLDLTEFGDDKDRVLVKSDGTYTYFTRDIAYHLDKFEERGADKII 219 (267) T ss_pred HHHHHHHHCCCEEE---------------EECCEEEEECHHCCCCCCCEEEECCCCCCCCHHHHHHHHHHHHCCCCCEEE T ss_conf 99999985578078---------------537809996201178877236725897653457999999999758989899 Q ss_pred CCCCCCHHHHHHHHHHHHHHHCCC-CCCCEEEECCHHHCCCCCCCCCCCCC Q ss_conf 367776136899999999972266-34511531101101221100000122 Q gi|254780285|r 354 YVMGSDHSGYVKRLEAVAAAVSEK-KAQINVLLCELVRLYRDGMPIKMSKR 403 (586) Q Consensus 354 yVv~~~Q~~h~~~v~~~~~~lg~~-~~~~~~~~~~~v~l~~dg~~~kmstR 403 (586) T Consensus 220 ~V~g~dq~~hf~~v~~~l~~lg~~~~~~l~h~~~g~V~l~~~~---kmStR 267 (267) T cd00671 220 YVVGADHHGHFKRLFAALELLGYPEAKKLEHILYGMVNLPDEG---KMSTR 267 (267) T ss_pred EEECCCHHHHHHHHHHHHHHCCCCCCCCEEEEEEEEEECCCCC---CCCCC T ss_conf 9979877999999999999759998887599985469989999---88898

HHsearch alignment for GI: 254780285 and conserved domain: cd00671