Mechanism	Retaining a
Clan	GH-D
3D Structure Status	( β / α ) 8 barrel
Catalytic Nucleophile/Base	Asp
Catalytic Proton Donor	Asp
Note	Subfamily classification initiated by Arumapperuma et al. 2023 [PMID:36806678]
External resources	CAZypedia; PROSITE;
Statistics	GenBank accession (368); Uniprot accession (3); PDB accession (4); 3D entries (2); cryst (0)

Bacteria
Protein Name	EC#	Organism	GenBank	Uniprot	PDB/3D Carbohydrate Ligands Resolution (Å)	Subf
exo-α-1,4-galactosidase (BsGH31_19; K6V19_13215)	3.2.1.-	Bacteroides salyersiae BFG-288	UBD15097.1	A0A7J4XIY8	8J53[A,B,C,D,E] 3.50	19
exo-α-1,4-galactosidase (FpGH31_19)	3.2.1.-	Flavihumibacter petaseus	WP_072053931.1	A0A0E9MUN5	8J50[A,B] 1.90 8J51[A,B] α-D-Galp 2.15 8J52[A,B] β-D-Galp D-1-deoxy-Galp 1.90	19
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