Glycoside Hydrolase Family 57 / Subf 5

Mechanism Retaining a
ClanGH-T
3D Structure Status( β / α ) 7 barrel
Catalytic Nucleophile/BaseGlu
Catalytic Proton DonorAsp
NoteSubfamilies established in (Polacek et al., 2025) [PMID:40187459]
External resourcesCAZypedia;
Statistics GenBank accession (1); Uniprot accession (5); PDB accession (7); 3D entries (4); cryst (0)
Archaea
Protein Name EC#ReferenceOrganismGenBank UniprotPDB/3DSubf
 glycogen branching enzyme (GBE;PhGBE;PH1386) 3.2.1.1
2.4.1.18
pubmed
pubmed
Pyrococcus horikoshii OT3 BAA30492.1
NP_143265.1
O50094 5WU7[A,B] 5
 branching enzyme (TkGBE; TkGBE57; TkGBE57; TK1436) 2.4.1.18 pubmed
Thermococcus kodakarensis KOD1 BAD85625.1
CAT71088.1
WP_011250387.1
Q5JDJ7 3N8T[A]
3N92[A]
3N98[A]
5
Bacteria
Protein Name EC#ReferenceOrganismGenBank UniprotPDB/3DSubf
 α-1,4-glucan branching enzyme (MsGBE57; EWH23_01975) 2.4.1.18 pubmed
Meiothermus sp. PNK-Is4 RYM39963.1
WP_129865543.1
    5
 α-1,4-glucan branching enzyme (GlgB57; PmGBE57; Pmob_0588) 2.4.1.18 pubmed
Petrotoga mobilis SJ95 ABX31322.1 A9BH92   5
 α-1,4-glucan branching enzyme / α-amylase (AmyC; GBE; TmGBE57; TM1438) 3.2.1.1
2.4.1.18
pubmed
pubmed
Thermotoga maritima MSB8 AHD18669.1
AGL50368.1
AKE29197.1
QFD27285.1
WP_004081707.1
R4P360 2B5D[X] 5
 glycogen branching enzyme (GBE; TtGBE; TtGBE57; TTHA1902; TT1467) 2.4.1.18 pubmed
Thermus thermophilus HB8 BAD71725.1 Q5SH28 1UFA[A]
3P0B[A]
5
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