ID A0A087DBN1_9BIFI Unreviewed; 741 AA.
AC A0A087DBN1;
DT 29-OCT-2014, integrated into UniProtKB/TrEMBL.
DT 29-OCT-2014, sequence version 1.
DT 24-JAN-2024, entry version 35.
DE RecName: Full=Alpha-1,4-glucan:maltose-1-phosphate maltosyltransferase {ECO:0000256|HAMAP-Rule:MF_02124};
DE Short=GMPMT {ECO:0000256|HAMAP-Rule:MF_02124};
DE EC=2.4.99.16 {ECO:0000256|HAMAP-Rule:MF_02124};
DE AltName: Full=(1->4)-alpha-D-glucan:maltose-1-phosphate alpha-D-maltosyltransferase {ECO:0000256|HAMAP-Rule:MF_02124};
GN Name=glgE {ECO:0000256|HAMAP-Rule:MF_02124};
GN ORFNames=BSCA_1665 {ECO:0000313|EMBL:KFI92931.1};
OS Bifidobacterium scardovii.
OC Bacteria; Actinomycetota; Actinomycetes; Bifidobacteriales;
OC Bifidobacteriaceae; Bifidobacterium.
OX NCBI_TaxID=158787 {ECO:0000313|EMBL:KFI92931.1, ECO:0000313|Proteomes:UP000029033};
RN [1] {ECO:0000313|EMBL:KFI92931.1, ECO:0000313|Proteomes:UP000029033}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=LMG 21589 {ECO:0000313|EMBL:KFI92931.1,
RC ECO:0000313|Proteomes:UP000029033};
RA Ventura M., Milani C., Lugli G.A.;
RT "Genomics of Bifidobacteria.";
RL Submitted (MAR-2014) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Maltosyltransferase that uses maltose 1-phosphate (M1P) as
CC the sugar donor to elongate linear or branched alpha-(1->4)-glucans. Is
CC involved in a branched alpha-glucan biosynthetic pathway from
CC trehalose, together with TreS, Mak and GlgB. {ECO:0000256|HAMAP-
CC Rule:MF_02124}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[(1->4)-alpha-D-glucosyl](n) + alpha-maltose 1-phosphate =
CC [(1->4)-alpha-D-glucosyl](n+2) + phosphate; Xref=Rhea:RHEA:42692,
CC Rhea:RHEA-COMP:9584, Rhea:RHEA-COMP:10183, ChEBI:CHEBI:15444,
CC ChEBI:CHEBI:43474, ChEBI:CHEBI:63576; EC=2.4.99.16;
CC Evidence={ECO:0000256|ARBA:ARBA00000575, ECO:0000256|HAMAP-
CC Rule:MF_02124};
CC -!- SUBUNIT: Homodimer. {ECO:0000256|ARBA:ARBA00011738, ECO:0000256|HAMAP-
CC Rule:MF_02124}.
CC -!- SIMILARITY: Belongs to the glycosyl hydrolase 13 family. GlgE
CC subfamily. {ECO:0000256|HAMAP-Rule:MF_02124}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:KFI92931.1}.
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DR EMBL; JGZO01000014; KFI92931.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A087DBN1; -.
DR STRING; 158787.BSCA_1665; -.
DR eggNOG; COG0366; Bacteria.
DR Proteomes; UP000029033; Unassembled WGS sequence.
DR GO; GO:0016758; F:hexosyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0004553; F:hydrolase activity, hydrolyzing O-glycosyl compounds; IEA:InterPro.
DR GO; GO:0030979; P:alpha-glucan biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd11344; AmyAc_GlgE_like; 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 Gene3D; 1.20.58.80; Phosphotransferase system, lactose/cellobiose-type IIA subunit; 1.
DR HAMAP; MF_02124; GlgE; 1.
DR InterPro; IPR026585; GlgE.
DR InterPro; IPR049171; GLGE_C.
DR InterPro; IPR021828; GlgE_dom_N/S.
DR InterPro; IPR006047; Glyco_hydro_13_cat_dom.
DR InterPro; IPR013780; Glyco_hydro_b.
DR InterPro; IPR017853; Glycoside_hydrolase_SF.
DR InterPro; IPR013783; Ig-like_fold.
DR PANTHER; PTHR47786:SF2; AAMY DOMAIN-CONTAINING PROTEIN; 1.
DR PANTHER; PTHR47786; ALPHA-1,4-GLUCAN:MALTOSE-1-PHOSPHATE MALTOSYLTRANSFERASE; 1.
DR Pfam; PF00128; Alpha-amylase; 1.
DR Pfam; PF21702; GLGE_C; 1.
DR Pfam; PF11896; GlgE_dom_N_S; 1.
DR SMART; SM00642; Aamy; 1.
DR SUPFAM; SSF51445; (Trans)glycosidases; 1.
PE 3: Inferred from homology;
KW Carbohydrate metabolism {ECO:0000256|ARBA:ARBA00023277, ECO:0000256|HAMAP-
KW Rule:MF_02124};
KW Glycosyltransferase {ECO:0000256|ARBA:ARBA00022676, ECO:0000256|HAMAP-
KW Rule:MF_02124}; Reference proteome {ECO:0000313|Proteomes:UP000029033};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_02124}.
FT DOMAIN 283..633
FT /note="Glycosyl hydrolase family 13 catalytic"
FT /evidence="ECO:0000259|SMART:SM00642"
FT REGION 1..41
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 8..23
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 467
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02124"
FT ACT_SITE 496
FT /note="Proton donor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02124"
FT BINDING 337
FT /ligand="alpha-maltose 1-phosphate"
FT /ligand_id="ChEBI:CHEBI:63576"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02124"
FT BINDING 397
FT /ligand="alpha-maltose 1-phosphate"
FT /ligand_id="ChEBI:CHEBI:63576"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02124"
FT BINDING 432
FT /ligand="alpha-maltose 1-phosphate"
FT /ligand_id="ChEBI:CHEBI:63576"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02124"
FT BINDING 468
FT /ligand="alpha-maltose 1-phosphate"
FT /ligand_id="ChEBI:CHEBI:63576"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02124"
FT BINDING 606..607
FT /ligand="alpha-maltose 1-phosphate"
FT /ligand_id="ChEBI:CHEBI:63576"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02124"
FT SITE 553
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02124"
SQ SEQUENCE 741 AA; 82018 MW; 320C60ECD44C242D CRC64;
MPAATAKSGK SAASTATATR TRKKSTAKTT RKTTTRKAPA KQPFTVALVG ETPAPSIPVT
EPGQFGRVNI LDITPNEERG TYPGRVELGE PFTMTAQVFI EGRTKVGATA VVRNHRGKEM
ARVPMTCTNP GLDRWQVTLA CGERSNVKPW DPEFAAVKRQ LGEWTVTIEG WEDTYASWLR
DARIKVDVHD DVENALDSGA ELLARWAATA DAKLNATERK TLQAAAKAAA DRTLTPAERL
AAADNETIAA LHESNPLRDG VSPSEPQRFR VERPGSSFAA WYQFFPRSEG AYVDPDTHKI
VQGTLKTALS GLERAKAEGF DIVYLPPIFP IGVTNRKGRN NALAAGPDDP GSPFGIGSEL
GGHDTVDPLL GTMDDFKALT ARAHELGLEI ALDFALQCSP DHPWVKAHPN WFRTKPDGTI
AFAENPPKKY QDIYPIDFNA DMAGIEREVE RIMNLWIEAG VTIFRVDNPH TKPVRFWQDV
IAAVTKKHPE VLFLAEAFTR PGMMRALSYV GFTQSHCYFP WRNTKEELEE YLGTTNGDDG
YYQHNTFWPT TPDILTAYVR DNGIAGHAVR AVLAAMGSPS WGIYNGYELI ENKQRPGFEE
QIDNEKYEVK VRDWSETSKY GIAELLTSLN AIRRNHKAAF SYHNVTVLPT SDPSILSFAR
HTPAELTGTG KAETLIAVVN LDGHDAHQAT VHFEMPDFDV DPDQGAHLRD ELTGREFDWG
WDNFVSLAPW ADVAHIFTVV R
//
