5IUC

Crystal structure of the GspB siglec domain with sialyl T antigen bound

Replaces:  4I8EReplaces:  3QD1

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Platelet binding protein GspB	polymer	127	13952.4	2	UniProt (Q939N5) In PDB	Streptococcus gordonii	Serine-rich adhesin for platelets,Serine-rich repeat protein GspB
2	C, D	N-acetyl-alpha-neuraminic acid-(2-3)-beta-D-galactopyranose-(1-3)-2-acetamido-2-deoxy-alpha-D-galactopyranose	branched		674.6	2	In PDB GlyTouCan (G65562ZE)
3	A, B	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
4		water	water		18.0	595	Chemie (HOH)

Sequence modifications

A, B: 399 - 521 (UniProt: Q939N5)

PDB	External Database	Details
Gly 395	-	expression tag
Pro 396	-	expression tag
Gly 397	-	expression tag
Ser 398	-	expression tag
Ser 444	Asn 444	conflict

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	27904.8
Branched	Number of molecules	2
	Total formula weight	1349.2
Non-Polymers*	Number of molecules	2
	Total formula weight	48.6
All*	Total formula weight	29302.6

*Water molecules are not included.