ID B7L4B6_ECO55 Unreviewed; 389 AA.
AC B7L4B6;
DT 10-FEB-2009, integrated into UniProtKB/TrEMBL.
DT 10-FEB-2009, sequence version 1.
DT 24-JAN-2024, entry version 81.
DE RecName: Full=Lipopolysaccharide assembly protein B {ECO:0000256|HAMAP-Rule:MF_00994};
GN Name=yciM {ECO:0000313|EMBL:CAU97299.1};
GN Synonyms=lapB {ECO:0000256|HAMAP-Rule:MF_00994};
GN OrderedLocusNames=EC55989_1441 {ECO:0000313|EMBL:CAU97299.1};
OS Escherichia coli (strain 55989 / EAEC).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=585055 {ECO:0000313|EMBL:CAU97299.1, ECO:0000313|Proteomes:UP000000746};
RN [1] {ECO:0000313|Proteomes:UP000000746}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=55989 / EAEC {ECO:0000313|Proteomes:UP000000746};
RX PubMed=19165319; DOI=10.1371/journal.pgen.1000344;
RA Touchon M., Hoede C., Tenaillon O., Barbe V., Baeriswyl S., Bidet P.,
RA Bingen E., Bonacorsi S., Bouchier C., Bouvet O., Calteau A., Chiapello H.,
RA Clermont O., Cruveiller S., Danchin A., Diard M., Dossat C., Karoui M.E.,
RA Frapy E., Garry L., Ghigo J.M., Gilles A.M., Johnson J., Le Bouguenec C.,
RA Lescat M., Mangenot S., Martinez-Jehanne V., Matic I., Nassif X., Oztas S.,
RA Petit M.A., Pichon C., Rouy Z., Ruf C.S., Schneider D., Tourret J.,
RA Vacherie B., Vallenet D., Medigue C., Rocha E.P.C., Denamur E.;
RT "Organised genome dynamics in the Escherichia coli species results in
RT highly diverse adaptive paths.";
RL PLoS Genet. 5:E1000344-E1000344(2009).
CC -!- FUNCTION: Modulates cellular lipopolysaccharide (LPS) levels by
CC regulating LpxC, which is involved in lipid A biosynthesis. May act by
CC modulating the proteolytic activity of FtsH towards LpxC. May also
CC coordinate assembly of proteins involved in LPS synthesis at the plasma
CC membrane. {ECO:0000256|HAMAP-Rule:MF_00994}.
CC -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000256|HAMAP-
CC Rule:MF_00994}; Single-pass membrane protein {ECO:0000256|HAMAP-
CC Rule:MF_00994}; Cytoplasmic side {ECO:0000256|HAMAP-Rule:MF_00994}.
CC -!- SIMILARITY: Belongs to the LapB family. {ECO:0000256|HAMAP-
CC Rule:MF_00994}.
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DR EMBL; CU928145; CAU97299.1; -; Genomic_DNA.
DR RefSeq; WP_000891353.1; NC_011748.1.
DR AlphaFoldDB; B7L4B6; -.
DR SMR; B7L4B6; -.
DR GeneID; 75203393; -.
DR KEGG; eck:EC55989_1441; -.
DR HOGENOM; CLU_059365_1_0_6; -.
DR OMA; FWQCPGC; -.
DR Proteomes; UP000000746; Chromosome.
DR GO; GO:0009898; C:cytoplasmic side of plasma membrane; IEA:UniProtKB-UniRule.
DR GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0008653; P:lipopolysaccharide metabolic process; IEA:InterPro.
DR GO; GO:0046890; P:regulation of lipid biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 1.25.40.10; Tetratricopeptide repeat domain; 2.
DR HAMAP; MF_00994; LPS_assembly_LapB; 1.
DR InterPro; IPR030865; LapB.
DR InterPro; IPR041166; Rubredoxin_2.
DR InterPro; IPR011990; TPR-like_helical_dom_sf.
DR InterPro; IPR019734; TPR_repeat.
DR PANTHER; PTHR45586:SF1; LIPOPOLYSACCHARIDE ASSEMBLY PROTEIN B; 1.
DR PANTHER; PTHR45586; TPR REPEAT-CONTAINING PROTEIN PA4667; 1.
DR Pfam; PF18073; Rubredoxin_2; 1.
DR Pfam; PF14559; TPR_19; 1.
DR Pfam; PF13176; TPR_7; 1.
DR SMART; SM00028; TPR; 5.
DR SUPFAM; SSF48452; TPR-like; 2.
DR PROSITE; PS50005; TPR; 1.
PE 3: Inferred from homology;
KW Cell inner membrane {ECO:0000256|HAMAP-Rule:MF_00994};
KW Cell membrane {ECO:0000256|HAMAP-Rule:MF_00994};
KW Iron {ECO:0000256|HAMAP-Rule:MF_00994};
KW Membrane {ECO:0000256|HAMAP-Rule:MF_00994};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_00994}; Reference proteome {ECO:0000313|Proteomes:UP000000746};
KW Repeat {ECO:0000256|HAMAP-Rule:MF_00994};
KW TPR repeat {ECO:0000256|HAMAP-Rule:MF_00994, ECO:0000256|PROSITE-
KW ProRule:PRU00339}; Transmembrane {ECO:0000256|HAMAP-Rule:MF_00994};
KW Transmembrane helix {ECO:0000256|HAMAP-Rule:MF_00994}.
FT TOPO_DOM 21..389
FT /note="Cytoplasmic"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00994"
FT REPEAT 214..247
FT /note="TPR"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU00339"
FT DOMAIN 355..382
FT /note="LapB rubredoxin metal binding"
FT /evidence="ECO:0000259|Pfam:PF18073"
FT BINDING 357
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00994"
FT BINDING 360
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00994"
FT BINDING 371
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00994"
FT BINDING 374
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00994"
SQ SEQUENCE 389 AA; 44531 MW; F4D1B9E2A526BCC3 CRC64;
MLELLFLLLP VAAAYGWYMG RRSAQQNKQD EANRLSRDYV AGVNFLLSNQ QDKAVDLFLD
MLKEDTGTVE AHLTLGNLFR SRGEVDRAIR IHQTLMESAS LTYEQRLLAI QQLGRDYMAA
GLYDRAEDMF NQLTDETDFR IGALQQLLQI YQATSEWQKA IDVAERLVKL GKDKQRVEIA
HFYCELALQH MASDDLDRAM TLLKKGAAAD KNSARVSIMM GRVFMAKGEY AKAVESLQRV
ISQDRELVSE TLEMLQTCYQ QLGKTAEWAE FLQRAVEENT GADAELMLAD IIEARDGSEA
AQVYITRQLQ RHPTMRVFHK LMDYHLNEAE EGRAKESLMV LRDMVGEKVR SKPRYRCQKC
GFTAYTLYWH CPSCRAWSTI KPIRGLDGL
//