2FUT

Crystal Structure of Heparinase II Complexed with a Disaccharide Product

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	heparinase II protein	polymer	748	85750.4	2	UniProt (Q46080) Pfam (PF16332) Pfam (PF07940) Pfam (PF18675) UniProt (by SIFTS) (C6XZB6) In PDB	Pedobacter heparinus
2	C, D	4-deoxy-2-O-sulfo-alpha-L-threo-hex-4-enopyranuronic acid-(1-4)-2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranose	branched		577.5	2	In PDB BIRD (PRD_900026) GlyTouCan (G01871HO)		HEPARIN DISACCHARIDE I-S,
3	A, B	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
4		water	water		18.0	783	Chemie (HOH)

Sequence modifications

A, B: 25 - 772 (UniProt: Q46080)

PDB	External Database	Details
Mse 41	Met 41	modified residue
Mse 65	Met 65	modified residue
Mse 77	Met 77	modified residue
Mse 80	Met 80	modified residue
Mse 111	Met 111	modified residue
Mse 117	Met 117	modified residue
Mse 154	Met 154	modified residue
Mse 186	Met 186	modified residue
Mse 207	Met 207	modified residue
Mse 209	Met 209	modified residue
Mse 226	Met 226	modified residue
Mse 255	Met 255	modified residue
Mse 275	Met 275	modified residue
Mse 320	Met 320	modified residue
Mse 381	Met 381	modified residue
Mse 396	Met 396	modified residue
Mse 499	Met 499	modified residue
Mse 559	Met 559	modified residue
Mse 603	Met 603	modified residue
Mse 729	Met 729	modified residue
Ala 758	Pro 758	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	171500.9
Branched	Number of molecules	2
	Total formula weight	1154.9
Non-Polymers*	Number of molecules	2
	Total formula weight	130.8
All*	Total formula weight	172786.6

*Water molecules are not included.