RPSBLAST alignment for GI: 254780845 and conserved domain: cd01049

>gnl|CDD|153108 cd01049, RNRR2, Ribonucleotide Reductase, R2/beta subunit, ferritin-like diiron-binding domain. Ribonucleotide Reductase, R2/beta subunit (RNRR2) is a member of a broad superfamily of ferritin-like diiron-carboxylate proteins. The RNR protein catalyzes the conversion of ribonucleotides to deoxyribonucleotides and is found in all eukaryotes, many prokaryotes, several viruses, and few archaea. The catalytically active form of RNR is a proposed alpha2-beta2 tetramer. The homodimeric alpha subunit (R1) contains the active site and redox active cysteines as well as the allosteric binding sites. The beta subunit (R2) contains a diiron cluster that, in its reduced state, reacts with dioxygen to form a stable tyrosyl radical and a diiron(III) cluster. This essential tyrosyl radical is proposed to generate a thiyl radical, located on a cysteine residue in the R1 active site that initiates ribonucleotide reduction. The beta subunit is composed of 10-13 helices, the 8 longest helices form an alpha-helical bundle; some have 2 addition beta strands. Yeast is unique in that it assembles both homodimers and heterodimers of RNRR2. The yeast heterodimer, Y2Y4, contains R2 (Y2) and a R2 homolog (Y4) that lacks the diiron center and is proposed to only assist in cofactor assembly, and perhaps stabilize R1 (Y1) in its active conformation. Length = 288
 Score =  306 bits (787), Expect = 5e-84
 Identities = 118/300 (39%), Positives = 172/300 (57%), Gaps = 15/300 (5%)

Query: 32  NQLLPLKYGWAWEKYLSACNNHWMPTEVPMQDDLALWKSKNGLTDDERLMIKRNLGFFAS 91
             L P+KY WAWE Y  A  N W P E+ +  DL  W+    LT+ ER  IKR L F A+
Sbjct: 1   FNLNPIKYPWAWELYKKAEANFWTPEEIDLSKDLKDWEK---LTEAERHFIKRVLAFLAA 57

Query: 92  SESLVANNIVLAIYRHLSNPECRQYLLRQAFEEAVHSHTFQYIITSLGLDE--GELFNMY 149
            +S+V  N+V    RH+  PE R +   QAF E +HS ++ YI+ +LG DE   ELF   
Sbjct: 58  LDSIVGENLVELFSRHVQIPEARAFYGFQAFMENIHSESYSYILDTLGKDEERDELFEAI 117

Query: 150 REVPSITAKANWALQYTQTLSSPSFTTGTKDADQEFLQDLFVFYVVFEGMWFYTGFAQIL 209
              P++  KA+W L++   L   +         + F + L  F ++ EG++FY+GFA I 
Sbjct: 118 ETDPALKKKADWILRWYDNLDDNT--------KESFAERLVAFAIL-EGIFFYSGFAAIF 168

Query: 210 SLGRANKMVGIAEQYQYIMRDESLHLNFGIDVINQIKIENPHLWTKEFQQKSRTMLHEAT 269
            L R  KM G+AE  + I RDESLH +F   +I ++  ENP L+T+EF+++   ++ EA 
Sbjct: 169 WLARRGKMPGLAEIIELISRDESLHGDFACLLIRELLNENPELFTEEFKEEVYELIKEAV 228

Query: 270 LLEIAYAHETMPKGFVGLNAPSCEQYMQFIANRRCHQIGLEPLFK-YTENPFPWMSEVID 328
            LE  +A + +P G +GLN    +QY++++ANRR   +GLE LF    +NPF WM  + D
Sbjct: 229 ELEKEFARDLLPDGILGLNKEDMKQYIEYVANRRLENLGLEKLFNVEDKNPFDWMELISD 288