ID   GLGB_FRATM              Reviewed;         640 AA.
AC   B2SFM7;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-2008, sequence version 1.
DT   03-AUG-2022, entry version 83.
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=FTM_0569;
OS   Francisella tularensis subsp. mediasiatica (strain FSC147).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Thiotrichales;
OC   Francisellaceae; Francisella.
OX   NCBI_TaxID=441952;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=FSC147;
RX   PubMed=19521508; DOI=10.1371/journal.ppat.1000472;
RA   Larsson P., Elfsmark D., Svensson K., Wikstroem P., Forsman M., Brettin T.,
RA   Keim P., Johansson A.;
RT   "Molecular evolutionary consequences of niche restriction in Francisella
RT   tularensis, a facultative intracellular pathogen.";
RL   PLoS Pathog. 5:E1000472-E1000472(2009).
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; CP000915; ACD30570.1; -; Genomic_DNA.
DR   RefSeq; WP_012429313.1; NC_010677.1.
DR   AlphaFoldDB; B2SFM7; -.
DR   SMR; B2SFM7; -.
DR   CAZy; CBM48; Carbohydrate-Binding Module Family 48.
DR   CAZy; GH13; Glycoside Hydrolase Family 13.
DR   KEGG; ftm:FTM_0569; -.
DR   HOGENOM; CLU_004245_3_2_6; -.
DR   OMA; FGMKWMM; -.
DR   UniPathway; UPA00164; -.
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; -; 1.
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; 1.
DR   TIGRFAMs; TIGR01515; branching_enzym; 1.
PE   3: Inferred from homology;
KW   Carbohydrate metabolism; Glycogen biosynthesis; Glycogen metabolism;
KW   Glycosyltransferase; Transferase.
FT   CHAIN           1..640
FT                   /note="1,4-alpha-glucan branching enzyme GlgB"
FT                   /id="PRO_1000131815"
FT   ACT_SITE        318
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00685"
FT   ACT_SITE        371
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00685"
SQ   SEQUENCE   640 AA;  74760 MW;  BC3A22B98F0C2D3A CRC64;
     MKNKNSEQNT HSTIGEQDIH YFHEGKHIYA YEFMGAHKAC EEGIEGIRFT TWAPNAKSIC
     VIGDFNYWQV EDKNYMEPIT DAGLWSVFIP NAKNGDKYKF VVTNKDTNNY VYKSDPYAFF
     SELRPNTASI ITTETQYTWS DDKWLEKRAK TNYYDNPMNV YELHLASWKT KNGKFLTYDE
     LNETLPQYIK EMGYTHVEFM PLHEHPLDAS WGYQPTGFYS VNSRHGDIIG LKRLVDKLHN
     NDIGVILDWV PGHFCKDQHG LIYFDGSPCY EYQEPTKAIN KGWGTHNFDL GRNEVKCFLI
     SNAMYWINEF HIDGLRVDAV SNILYLNYDR EDGQWIPNIY GGHENLEGIA FLKELNGVLK
     HTCKGVITIA EESSSWPDIS TPVEKGGLGF DFKWNMGWMN DTLRYISLDP VYRKYHHNLI
     TFSMVYHYSE KFILSISHDE VVHGKKSLIN KMWGDLWNKY AGLRLYMSYM IGHPGKKLIF
     MGSEFVQFVE WREYEQLQWQ VVDQYESHKQ TLHFFKKLND LYHNETALWQ CDYDHHGFRW
     IDADNSQQSI LSFIRSSKDN KQKLIFICNF TPVTYYDYHL GVPDAGSYKE VFNSDNLEFG
     GSGQVMATEI FSSPQSSHGF EQRITIKIPP MATLVLKLIK