ID GLGB_SOLTU Reviewed; 861 AA. AC P30924; DT 01-JUL-1993, integrated into UniProtKB/Swiss-Prot. DT 01-NOV-1995, sequence version 2. DT 27-MAR-2024, entry version 131. DE RecName: Full=1,4-alpha-glucan-branching enzyme; DE EC=2.4.1.18; DE AltName: Full=Q-enzyme; DE AltName: Full=Starch-branching enzyme; GN Name=SBE1; Synonyms=SBE; OS Solanum tuberosum (Potato). OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta; OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae; OC asterids; lamiids; Solanales; Solanaceae; Solanoideae; Solaneae; Solanum. OX NCBI_TaxID=4113; RN [1] RP NUCLEOTIDE SEQUENCE [MRNA]. RC STRAIN=cv. Dianella; RX PubMed=8278528; DOI=10.1104/pp.102.3.1053; RA Poulsen P., Kreiberg J.D.; RT "Starch branching enzyme cDNA from Solanum tuberosum."; RL Plant Physiol. 102:1053-1054(1993). RN [2] RP NUCLEOTIDE SEQUENCE [MRNA] OF 279-527. RC STRAIN=cv. Desiree; TISSUE=Tuber; RX PubMed=1745241; DOI=10.1007/bf00290648; RA Kossmann J., Visser R.G.F., Mueller-Roeber B., Willmitzer L., Sonnewald U.; RT "Cloning and expression analysis of a potato cDNA that encodes branching RT enzyme: evidence for co-expression of starch biosynthetic genes."; RL Mol. Gen. Genet. 230:39-44(1991). CC -!- FUNCTION: Catalyzes the formation of the alpha-1,6-glucosidic linkages CC in starch 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. 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 -!- PATHWAY: Glycan biosynthesis; starch biosynthesis. CC -!- SUBUNIT: Monomer. CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast. Plastid, amyloplast. CC -!- SIMILARITY: Belongs to the glycosyl hydrolase 13 family. GlgB CC subfamily. {ECO:0000305}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; X69805; CAA49463.1; -; mRNA. DR PIR; S34730; S34730. DR RefSeq; NP_001275183.1; NM_001288254.1. DR AlphaFoldDB; P30924; -. DR SMR; P30924; -. DR STRING; 4113.P30924; -. DR CAZy; CBM48; Carbohydrate-Binding Module Family 48. DR CAZy; GH13; Glycoside Hydrolase Family 13. DR PaxDb; 4113-PGSC0003DMT400025846; -. DR GeneID; 102596498; -. DR KEGG; sot:102596498; -. DR InParanoid; P30924; -. DR OrthoDB; 96at2759; -. DR BioCyc; MetaCyc:MONOMER-1885; -. DR UniPathway; UPA00152; -. DR Proteomes; UP000011115; Unassembled WGS sequence. DR ExpressionAtlas; P30924; baseline. DR GO; GO:0009501; C:amyloplast; IEA:UniProtKB-SubCell. DR GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell. DR GO; GO:0005737; C:cytoplasm; IBA:GO_Central. DR GO; GO:0003844; F:1,4-alpha-glucan branching enzyme activity; IBA:GO_Central. 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:0005975; P:carbohydrate metabolic process; IBA:GO_Central. DR GO; GO:0005978; P:glycogen biosynthetic process; IEA:InterPro. DR GO; GO:0019252; P:starch biosynthetic process; IEA:UniProtKB-UniPathway. DR CDD; cd11321; AmyAc_bac_euk_BE; 1. DR CDD; cd02854; E_set_GBE_euk_N; 1. DR Gene3D; 3.20.20.80; Glycosidases; 1. DR Gene3D; 2.60.40.1180; Golgi alpha-mannosidase II; 1. DR Gene3D; 2.60.40.10; Immunoglobulins; 1. DR InterPro; IPR006048; A-amylase/branching_C. DR InterPro; IPR037439; Branching_enzy. 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; 1,4-ALPHA-GLUCAN-BRANCHING ENZYME; 1. DR PANTHER; PTHR43651:SF2; 1,4-ALPHA-GLUCAN-BRANCHING ENZYME, CHLOROPLASTIC_AMYLOPLASTIC; 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; (Trans)glycosidases; 1. DR SUPFAM; SSF81296; E set domains; 1. DR SUPFAM; SSF51011; Glycosyl hydrolase domain; 1. PE 2: Evidence at transcript level; KW Amyloplast; Chloroplast; Glycosyltransferase; Plastid; Reference proteome; KW Starch biosynthesis; Transferase. FT CHAIN 1..861 FT /note="1,4-alpha-glucan-branching enzyme" FT /id="PRO_0000188787" FT ACT_SITE 429 FT /note="Nucleophile" FT /evidence="ECO:0000250" FT ACT_SITE 484 FT /note="Proton donor" FT /evidence="ECO:0000250" SQ SEQUENCE 861 AA; 99084 MW; F3D519AC7CF1BEF2 CRC64; MEINFKVLSK PIRGSFPSFS PKVSSGASRN KICFPSQHST GLKFGSQERS WDISSTPKSR VRKDERMKHS SAISAVLTDD NSTMAPLEED VKTENIGLLN LDPTLEPYLD HFRHRMKRYV DQKMLIEKYE GPLEEFAQGY LKFGFNREDG CIVYREWAPA AQEDEVIGDF NGWNGSNHMM EKDQFGVWSI RIPDVDSKPV IPHNSRVKFR FKHGNGVWVD RIPAWIKYAT ADATKFAAPY DGVYWDPPPS ERYHFKYPRP PKPRAPRIYE AHVGMSSSEP RVNSYREFAD DVLPRIKANN YNTVQLMAIM EHSYYGSFGY HVTNFFAVSS RYGNPEDLKY LIDKAHSLGL QVLVDVVHSH ASNNVTDGLN GFDIGQGSQE SYFHAGERGY HKLWDSRLFN YANWEVLRFL LSNLRWWLEE YNFDGFRFDG ITSMLYVHHG INMGFTGNYN EYFSEATDVD AVVYLMLANN LIHKIFPDAT VIAEDVSGMP GLGRPVSEGG IGFDYRLAMA IPDKWIDYLK NKNDEDWSMK EVTSSLTNRR YTEKCIAYAE SHDQSIVGDK TIAFLLMDKE MYSGMSCLTD ASPVVDRGIA LHKMIHFFTM ALGGEGYLNF MGNEFGHPEW IDFPREGNNW SYDKCRRQWN LADSEHLRYK FMNAFDRAMN SLDEKFSFLA SGKQIVSSMD DDNKVVVFER GDLVFVFNFH PKNTYEGYKV GCDLPGKYRV ALDSDAWEFG GHGRTGHDVD HFTSPEGIPG VPETNFNGRQ IPSKCCLLRE HVWLITELMN ACQKLKITRQ TFVVSYYQQP ISRRVTRNLK IRYLQISVTL TNACQKLKFT RQTFLVSYYQ QPILRRVTRK LKDSLSTNIS T //