ID   GLGB_MYCTA              Reviewed;         731 AA.
AC   A5U226;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   10-JUL-2007, sequence version 1.
DT   25-MAY-2022, entry version 92.
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=MRA_1334;
OS   Mycobacterium tuberculosis (strain ATCC 25177 / H37Ra).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacterium; Mycobacterium tuberculosis complex.
OX   NCBI_TaxID=419947;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 25177 / H37Ra;
RX   PubMed=18584054; DOI=10.1371/journal.pone.0002375;
RA   Zheng H., Lu L., Wang B., Pu S., Zhang X., Zhu G., Shi W., Zhang L.,
RA   Wang H., Wang S., Zhao G., Zhang Y.;
RT   "Genetic basis of virulence attenuation revealed by comparative genomic
RT   analysis of Mycobacterium tuberculosis strain H37Ra versus H37Rv.";
RL   PLoS ONE 3:E2375-E2375(2008).
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; CP000611; ABQ73076.1; -; Genomic_DNA.
DR   RefSeq; WP_003900318.1; NZ_CP016972.1.
DR   AlphaFoldDB; A5U226; -.
DR   SMR; A5U226; -.
DR   STRING; 419947.MRA_1334; -.
DR   CAZy; CBM48; Carbohydrate-Binding Module Family 48.
DR   CAZy; GH13; Glycoside Hydrolase Family 13.
DR   EnsemblBacteria; ABQ73076; ABQ73076; MRA_1334.
DR   KEGG; mra:MRA_1334; -.
DR   eggNOG; COG0296; Bacteria.
DR   HOGENOM; CLU_004245_3_2_11; -.
DR   OMA; FGMKWMM; -.
DR   OrthoDB; 227746at2; -.
DR   UniPathway; UPA00164; -.
DR   Proteomes; UP000001988; 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..731
FT                   /note="1,4-alpha-glucan branching enzyme GlgB"
FT                   /id="PRO_1000044985"
FT   ACT_SITE        411
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00685"
FT   ACT_SITE        464
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00685"
SQ   SEQUENCE   731 AA;  81729 MW;  EE2BFEF765352617 CRC64;
     MSRSEKLTGE HLAPEPAEMA RLVAGTHHNP HGILGAHEYD DHTVIRAFRP HAVEVVALVG
     KDRFSLQHLD SGLFAVALPF VDLIDYRLQV TYEGCEPHTV ADAYRFLPTL GEVDLHLFAE
     GRHERLWEVL GAHPRSFTTA DGVVSGVSFA VWAPNAKGVS LIGEFNGWNG HEAPMRVLGP
     SGVWELFWPD FPCDGLYKFR VHGADGVVTD RADPFAFGTE VPPQTASRVT SSDYTWGDDD
     WMAGRALRNP VNEAMSTYEV HLGSWRPGLS YRQLARELTD YIVDQGFTHV ELLPVAEHPF
     AGSWGYQVTS YYAPTSRFGT PDDFRALVDA LHQAGIGVIV DWVPAHFPKD AWALGRFDGT
     PLYEHSDPKR GEQLDWGTYV FDFGRPEVRN FLVANALYWL QEFHIDGLRV DAVASMLYLD
     YSRPEGGWTP NVHGGRENLE AVQFLQEMNA TAHKVAPGIV TIAEESTPWS GVTRPTNIGG
     LGFSMKWNMG WMHDTLDYVS RDPVYRSYHH HEMTFSMLYA FSENYVLPLS HDEVVHGKGT
     LWGRMPGNNH VKAAGLRSLL AYQWAHPGKQ LLFMGQEFGQ RAEWSEQRGL DWFQLDENGF
     SNGIQRLVRD INDIYRCHPA LWSLDTTPEG YSWIDANDSA NNVLSFMRYG SDGSVLACVF
     NFAGAEHRDY RLGLPRAGRW REVLNTDATI YHGSGIGNLG GVDATDDPWH GRPASAVLVL
     PPTSALWLTP A