Glycoside Hydrolase Family 43 / Subf 1

Activities in Sub Family	Xylan β-1,4-xylosidase (EC 3.2.1.37); α-L-arabinofuranosidase (EC 3.2.1.55);
Mechanism	Inverting e
Clan	GH-F
3D Structure Status	5-fold β-propeller
Catalytic Nucleophile/Base	Asp
Catalytic Proton Donor	Glu
Note	Many members have been assigned to subfamilies as described by Mewis et al. (2016) Appl. Environm. Microbiol. 82:1686-1692 (PMID: 26729713).
External resources	CAZypedia;
Commercial Enzyme Provider(s)	MEGAZYME; NZYTech; PROZOMIX;
Statistics	GenBank accession (495); Uniprot accession (26); PDB accession (12); 3D entries (3); cryst (0)

Summary

Download GH43_1 (2011) Taxonomic display Structure (3) Characterized (26)


Bacteria
Protein Name	EC#	Reference	Organism	GenBank	Uniprot	PDB/3D	Subf
β-xylosidase (BiXyl43A;BACINT_04203) (Xyl43A)	3.2.1.37	pubmed	Bacteroides intestinalis DSM 17393	EDV05060.1	B3CES2		1
β-xylosidase (BACOVA_00487) (BoXyl43A)	3.2.1.37		Bacteroides ovatus ATCC 8483	QDD67338.1	A0A4Y5UXD0		1
β-xylosidase / α-L-arabinofuranosidase (Xsa;XSA)	3.2.1.37 3.2.1.55	pubmed pubmed	Bacteroides ovatus V975	AAB08024.1 ACA34973.1	B2KZK6 P49943		1
β-xylosidase 43A (CJA_3070) (Xyl43A=Gly43G)	3.2.1.37	pubmed	Cellvibrio japonicus Ueda107	ACE82692.1	B3PDB2		1
xylan β-1,4-xylosidase (XylA; HHT355_0966)	3.2.1.37	pubmed	Herbinix hemicellulosilytica	CRZ34169.1	A0A0H5SFF4		1
multifunctional exo-β-xylosidase / α-L-arabinofuranosidase (GH43B6)	3.2.1.37 3.2.1.55	doi doi	Paenibacillus curdlanolyticus B-6	AIU98619.1	A0A0A0R2Z1		1
β-xylosidase 43A (PpXyl43A; Xsa; Pph_0602; GCM10010917_12990) (Xyl43A)	3.2.1.37	pubmed	Paenibacillus physcomitrellae CGMCC 1.15044	GGA29392.1 WP_094092920.1			1
β-1,4-xylosidase 43A (JOP69_09760) (Xyl43A)	3.2.1.37	pubmed	Polaribacter sp. Q13	QVY64065.1			1
β-xylosidase (XynB;Orf0389;00389-GPBOY;PBR_0394)	3.2.1.37	pubmed	Segatella baroniae B14	CAA89208.1 CAD21010.1	P48791 Q7AUW6		1
β-xylosidase (PREVCOP_02876;PREVCOP_04951)	3.2.1.37	pubmed	Segatella copri	EFB35669.1	A0A6I2TZV0 D1PCL7		1
β-xylosidase (Xyl455)	3.2.1.37	doi	Sphingobacterium sp. HP455	AGL51118.1	R4P2Z4		1
β-xylosidase / α-L-arabinofuranosidase (CoXyl43)	3.2.1.37 3.2.1.55	pubmed pubmed	uncultured bacterium	BAS02080.1	A0A0H5BL38	5GLK[A,B] 5GLL[A,B] 5GLM[A,B] 5GLN[A,B] 5GLO[A,B] 5GLP[A,B] 5GLQ[A,B] 5GLR[A,B]	1
β-1,4-xylosidase / α-L-arabinofuranoside (RuXyn1)	3.2.1.37 3.2.1.55	pubmed pubmed	uncultured rumen bacterium	ADO20354.1	E3TBJ3		1
β-xylosidase / α-L-arabinofuranosidase (RUM630-BX)	3.2.1.37	pubmed	uncultured rumen bacterium	AFE48532.1	H9A0B4		1
xylan 1,4-β-xylosidase (XAC4258 (Xsa))	3.2.1.37	pubmed	Xanthomonas citri pv. citri str. 306	AAM39093.1 NP_644557.1	Q8PET2	6XN0[A,B] 6XN1[A,B] 6XN2[A,B]	1
Eukaryota
Protein Name	EC#	Reference	Organism	GenBank	Uniprot	PDB/3D	Subf
β-xylosidase (XylB;AO090005000698)	3.2.1.37	pubmed	Aspergillus oryzae RIB40	BAE55732.1	Q2URT3		1
β-xylosidase (AtL)	3.2.1.37	pubmed	Aspergillus terreus Li-20	AFD63137.1	H9BYY0		1
β-xylosidase (Xyp1)	3.2.1.37	pubmed	Bipolaris zeicola	AAC67554.1	O93912		1
β-xylosidase / α-L-arabinofuranosidase (Xyl43A)	3.2.1.37	pubmed	Humicola insolens Y1	AHC72382.1	V9TNS0		1
β-1,4-xylosidase (PtXyl43) (Xyl43)	3.2.1.37	pubmed	Paecilomyces sp. thermophila / Paecilomyces thermophila J18	ADM33794.1	F1APW0		1
β-xylosidase S2	3.2.1.37	pubmed	Penicillium herquei IFO 4674	BAC75546.1	Q870E8		1
β-xylosidase (RrXyl43A) (Xyl43A)	3.2.1.37	pubmed	Rhizophlyctis rosea	AWL24827.1	A0A2U8LMQ1		1
β-xylosidase (Xyl1)	3.2.1.37	pubmed	Talaromyces purpureogenus MYA-38	AFX58964.1	K7WBC5		1
β-1,4-xylosidase (Xyl43;TlXyl43;NOKS4_002883-RA)	3.2.1.37	pubmed	Thermomyces lanuginosus CAU44	ADW66247.1	G9B187		1
unclassified
Protein Name	EC#	Reference	Organism	GenBank	Uniprot	PDB/3D	Subf
β-xylosidase (RS223-BX)	3.2.1.37	pubmed	uncultured organism	AFP23142.1	I7EUE2	4MLG[A,B,C,D,E,F,G,H,I,J,K,L]	1
β-xylosidase (c24_6)	3.2.1.37	pubmed	uncultured organism	AGU10366.1			1
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