GLGB_PROMM
ID GLGB_PROMM Reviewed; 756 AA.
AC Q7V8B5;
DT 10-MAY-2005, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2003, sequence version 1.
DT 25-MAY-2022, entry version 120.
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=PMT_0444;
OS Prochlorococcus marinus (strain MIT 9313).
OC Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC Prochlorococcus.
OX NCBI_TaxID=74547;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MIT 9313;
RX PubMed=12917642; DOI=10.1038/nature01947;
RA Rocap G., Larimer F.W., Lamerdin J.E., Malfatti S., Chain P., Ahlgren N.A.,
RA Arellano A., Coleman M., Hauser L., Hess W.R., Johnson Z.I., Land M.L.,
RA Lindell D., Post A.F., Regala W., Shah M., Shaw S.L., Steglich C.,
RA Sullivan M.B., Ting C.S., Tolonen A., Webb E.A., Zinser E.R.,
RA Chisholm S.W.;
RT "Genome divergence in two Prochlorococcus ecotypes reflects oceanic niche
RT differentiation.";
RL Nature 424:1042-1047(2003).
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; BX548175; CAE20619.1; -; Genomic_DNA.
DR RefSeq; WP_011129823.1; NC_005071.1.
DR AlphaFoldDB; Q7V8B5; -.
DR SMR; Q7V8B5; -.
DR STRING; 74547.PMT_0444; -.
DR CAZy; CBM48; Carbohydrate-Binding Module Family 48.
DR CAZy; GH13; Glycoside Hydrolase Family 13.
DR EnsemblBacteria; CAE20619; CAE20619; PMT_0444.
DR KEGG; pmt:PMT_0444; -.
DR eggNOG; COG0296; Bacteria.
DR HOGENOM; CLU_004245_3_2_3; -.
DR OMA; FGMKWMM; -.
DR OrthoDB; 227746at2; -.
DR UniPathway; UPA00164; -.
DR Proteomes; UP000001423; 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; Reference proteome; Transferase.
FT CHAIN 1..756
FT /note="1,4-alpha-glucan branching enzyme GlgB"
FT /id="PRO_0000188728"
FT ACT_SITE 431
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00685"
FT ACT_SITE 484
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00685"
SQ SEQUENCE 756 AA; 87745 MW; ECBB3AB60700C4AA CRC64;
MTTSVALDWV VQDGQRLAEC RHDDPFSLLG PQSHEGQWIV RIWMPEASQV ELLCDGRTTA
MTTPNHSWIF EAALNQNPGR TYQVRVKRAG IVHEQHDPWA FHDEWMGEMD RHLFAEGNHH
HIWQRMGAHL MEREGVEGVM FCLWAPHACS VAVLGELNGW DGRHHPMQRR QGGLWELFIP
GFKEGTLYKY EIRTQEGHCY QKADPYGFQH EVRPATSSVV ARLDRYQWQD EQWMRQRDSR
NALDQPISVY EMHLGSWIHA ATDEPYIELD GTPRAPVPAA DMKPGARLLT YPELADQLIP
YVKDRGFTHI ELMPISEHPF DGSWGYQVTG WYAPTSRFGS PDEFRAFVDR CHAEGLGVII
DWVPGHFPKD GHGLAFFDGT HLYEHSDPRI GEHKEWGTLI FNYSRNEVRN FLVANLVYWF
EQFHIDGIRV DAVASMLYRD YLRPDGEWIA NEDGGRENTE AVRFLQQANH VLFQHFPGAL
SIAEESTTWP MVTQPTDIGG LGFNLKWNMG WMHDMLDYFE LDPWFRQFHQ NNITFSIWYA
YTENFMLALS HDEVVHGKSN LLHKMPGDDW QKFANVRALL AYMWTHPGKK TIFMGMEFGQ
RSEWNVWGDL QWELLKHDPH KGLQRLVDDL NTFYKGEPAL WKDDFDQYGF QWIDCNDNRH
SVISFMRRES SGGTWLVVVA NFTPQSHSNY RIGVPMSGYY QEVFNTDSSC YGGRNLGNMG
GKNTDEFNIH GYEQSLELCL PALSVLVFRH DPKRSL