ID   GLGB_ECOK1              Reviewed;         728 AA.
AC   A1AGW5;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 1.
DT   25-MAY-2022, entry version 100.
DE   RecName: Full=1,4-alpha-glucan branching enzyme GlgB {ECO:0000255|HAMAP-Rule:MF_00685};
DE            EC=2.4.1.18 {ECO:0000255|HAMAP-Rule:MF_00685};
DE   AltName: Full=1,4-alpha-D-glucan:1,4-alpha-D-glucan 6-glucosyl-transferase {ECO:0000255|HAMAP-Rule:MF_00685};
DE   AltName: Full=Alpha-(1->4)-glucan branching enzyme {ECO:0000255|HAMAP-Rule:MF_00685};
DE   AltName: Full=Glycogen branching enzyme {ECO:0000255|HAMAP-Rule:MF_00685};
DE            Short=BE {ECO:0000255|HAMAP-Rule:MF_00685};
GN   Name=glgB {ECO:0000255|HAMAP-Rule:MF_00685}; OrderedLocusNames=Ecok1_34110;
GN   ORFNames=APECO1_3025;
OS   Escherichia coli O1:K1 / APEC.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=405955;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=17293413; DOI=10.1128/jb.01726-06;
RA   Johnson T.J., Kariyawasam S., Wannemuehler Y., Mangiamele P., Johnson S.J.,
RA   Doetkott C., Skyberg J.A., Lynne A.M., Johnson J.R., Nolan L.K.;
RT   "The genome sequence of avian pathogenic Escherichia coli strain O1:K1:H7
RT   shares strong similarities with human extraintestinal pathogenic E. coli
RT   genomes.";
RL   J. Bacteriol. 189:3228-3236(2007).
CC   -!- FUNCTION: Catalyzes the formation of the alpha-1,6-glucosidic linkages
CC       in glycogen by scission of a 1,4-alpha-linked oligosaccharide from
CC       growing alpha-1,4-glucan chains and the subsequent attachment of the
CC       oligosaccharide to the alpha-1,6 position. {ECO:0000255|HAMAP-
CC       Rule:MF_00685}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Transfers a segment of a (1->4)-alpha-D-glucan chain to a
CC         primary hydroxy group in a similar glucan chain.; EC=2.4.1.18;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00685};
CC   -!- PATHWAY: Glycan biosynthesis; glycogen biosynthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_00685}.
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_00685}.
CC   -!- SIMILARITY: Belongs to the glycosyl hydrolase 13 family. GlgB
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_00685}.
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DR   EMBL; CP000468; ABJ02905.1; -; Genomic_DNA.
DR   RefSeq; WP_001283713.1; NC_008563.1.
DR   AlphaFoldDB; A1AGW5; -.
DR   SMR; A1AGW5; -.
DR   CAZy; CBM48; Carbohydrate-Binding Module Family 48.
DR   CAZy; GH13; Glycoside Hydrolase Family 13.
DR   EnsemblBacteria; ABJ02905; ABJ02905; APECO1_3025.
DR   KEGG; ecv:APECO1_3025; -.
DR   HOGENOM; CLU_004245_3_2_6; -.
DR   OMA; FGMKWMM; -.
DR   UniPathway; UPA00164; -.
DR   Proteomes; UP000008216; Chromosome.
DR   GO; GO:0003844; F:1,4-alpha-glucan branching enzyme activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0102752; F:1,4-alpha-glucan branching enzyme activity (using a glucosylated glycogenin as primer for glycogen synthesis); IEA:UniProtKB-EC.
DR   GO; GO:0043169; F:cation binding; IEA:InterPro.
DR   GO; GO:0004553; F:hydrolase activity, hydrolyzing O-glycosyl compounds; IEA:InterPro.
DR   GO; GO:0005978; P:glycogen biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd02855; E_set_GBE_prok_N; 1.
DR   Gene3D; 2.60.40.10; -; 2.
DR   Gene3D; 2.60.40.1180; -; 1.
DR   HAMAP; MF_00685; GlgB; 1.
DR   InterPro; IPR006048; A-amylase/branching_C.
DR   InterPro; IPR037439; Branching_enzy.
DR   InterPro; IPR006407; GlgB.
DR   InterPro; IPR044143; GlgB_N_E_set_prok.
DR   InterPro; IPR006047; Glyco_hydro_13_cat_dom.
DR   InterPro; IPR004193; Glyco_hydro_13_N.
DR   InterPro; IPR013780; Glyco_hydro_b.
DR   InterPro; IPR017853; Glycoside_hydrolase_SF.
DR   InterPro; IPR013783; Ig-like_fold.
DR   InterPro; IPR014756; Ig_E-set.
DR   PANTHER; PTHR43651; PTHR43651; 1.
DR   Pfam; PF00128; Alpha-amylase; 1.
DR   Pfam; PF02806; Alpha-amylase_C; 1.
DR   Pfam; PF02922; CBM_48; 1.
DR   PIRSF; PIRSF000463; GlgB; 1.
DR   SMART; SM00642; Aamy; 1.
DR   SUPFAM; SSF51445; SSF51445; 1.
DR   SUPFAM; SSF81296; SSF81296; 2.
DR   TIGRFAMs; TIGR01515; branching_enzym; 1.
PE   3: Inferred from homology;
KW   Carbohydrate metabolism; Glycogen biosynthesis; Glycogen metabolism;
KW   Glycosyltransferase; Transferase.
FT   CHAIN           1..728
FT                   /note="1,4-alpha-glucan branching enzyme GlgB"
FT                   /id="PRO_1000044976"
FT   ACT_SITE        405
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00685"
FT   ACT_SITE        458
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00685"
SQ   SEQUENCE   728 AA;  84363 MW;  304C7B8F8F66079A CRC64;
     MSDRIDRDVI NALIAGHFAD PFSVLGMHKT TAGLEVRALL PDATDVWVIE PKTGRKLAKL
     ECLDSRGFFS GVIPRRKNFF RYQLAVVWHG QQNLIDDPYR FGPLIQEMDA WLLSEGTHLR
     PYETLGAHAD TMDGVTGTRF SVWAPNARRV SVVGQFNYWD GRRHPMRLRK ESGIWELFIP
     GAHNGQLYKY EMIDANGNLR LKSDPYAFEA QMRPETASLI CGLPEKVVQT EERKKANQFD
     APISIYEVHL GSWRRHTDNN FWLSYRELAD QLVPYAKWMG FTHLELLPIN EHPFDGSWGY
     QPTGLYAPTR RFGTRDDFRY FIDAAHAAGL NVILDWVPGH FPTDDFALAE FDGTNLYEHS
     DPREGYHQDW NTLIYNYGRR EVSNFLVGNA LYWIERFGID ALRVDAVASM IYRDYSRKEG
     EWIPNEFGGR ENLEAIEFLR NTNRILGEQV SGAVTMAEES TDFPGVSRPQ DMGGLGFWYK
     WNLGWMHDTL DYMKLDPIYR QYHHDKLTFG MLYNYTENFV LPLSHDEVVH GKKSILDRMP
     GDAWQKFANL RAYYGWMWAF PGKKLLFMGN EFAQGREWNH DASLDWHLLE GGDNWHHGVQ
     RLVRDLNHTY RHHKAMHELD FDPYGFEWLV VDDKERSVLI FVRRDKEGNE IIVASNFTPV
     PRHDYRFGIN QPGKWREILN TDSMHYHGSN AGNGGAVHSD EIASHGRQHS LSLTLPPLAT
     IWLVREAE