AC MF_02103; DC Protein; auto TR HAMAP; MF_02103; -; 1; level=0 XX Names: LutB XX ID LUTB DE RecName: Full=Lactate utilization protein B; GN Name=lutB; XX CC -!- FUNCTION: Is involved in L-lactate degradation and allows cells to grow CC with lactate as the sole carbon source. Has probably a role as an CC electron transporter during oxidation of L-lactate. CC -!- SIMILARITY: Belongs to the LutB/YkgF family. XX DR PROSITE; PS00198; 4FE4S_FER_1; 2; trigger=no DR PROSITE; PS51379; 4FE4S_FER_2; 2; trigger=no DR Pfam; PF02589; DUF162; 1; trigger=no DR NCBIfam; TIGR00273; TIGR00273; 1; trigger=no XX KW 4Fe-4S KW Electron transport KW Iron KW Iron-sulfur KW Metal-binding KW Repeat KW Transport XX GO GO:0051536; F:iron-sulfur cluster binding GO GO:0006089; P:lactate metabolic process GO GO:0019516; P:lactate oxidation XX FT From: LUTB_BACSU (O07021) FT DOMAIN 304..334 FT /note="4Fe-4S ferredoxin-type 1" FT DOMAIN 353..382 FT /note="4Fe-4S ferredoxin-type 2" FT BINDING 313 FT /ligand="[4Fe-4S] cluster" FT /ligand_id="ChEBI:CHEBI:49883" FT /ligand_label="1" FT Condition: C FT BINDING 316 FT /ligand="[4Fe-4S] cluster" FT /ligand_id="ChEBI:CHEBI:49883" FT /ligand_label="1" FT Condition: C FT BINDING 319 FT /ligand="[4Fe-4S] cluster" FT /ligand_id="ChEBI:CHEBI:49883" FT /ligand_label="1" FT Condition: C FT BINDING 323 FT /ligand="[4Fe-4S] cluster" FT /ligand_id="ChEBI:CHEBI:49883" FT /ligand_label="2" FT Condition: C FT BINDING 366 FT /ligand="[4Fe-4S] cluster" FT /ligand_id="ChEBI:CHEBI:49883" FT /ligand_label="2" FT Condition: C FT BINDING 369 FT /ligand="[4Fe-4S] cluster" FT /ligand_id="ChEBI:CHEBI:49883" FT /ligand_label="2" FT Condition: C FT BINDING 373 FT /ligand="[4Fe-4S] cluster" FT /ligand_id="ChEBI:CHEBI:49883" FT /ligand_label="1" FT Condition: C XX Size: 468-485; Related: None; Template: O07021; Q81GA4; Scope: Bacteria; Bacillota Fusion: Nter: None Cter: None Duplicate: in BACMK Plasmid: None Comments: The E.coli ykgEFG operon is a clear homolog of the B.subtilis lutABC operon, however it is not able of restoring L-lactate utilization to the B.subtilis mutant for lutABC operon (PubMed=19201793). Thus, ykgEFG operon may contribute to lactate catabolism in E.coli, but under conditions other than those tested, or alternatively, the ykgEFG operon may be responsible for the catabolism of a metabolite other than (but perhaps related to) lactate in E.coli. That's why the profile was not extended to Pseudomonadota and this family rule is currently restricted to Bacillota (in fact seed alignment only contains Bacillales), waiting for characterization in E.coli. XX # Revision 1.17 2023/06/01 //