3R4D

Crystal structure of mouse coronavirus receptor-binding domain complexed with its murine receptor

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C (A, C)	CEA-related cell adhesion molecule 1, isoform 1/2S	polymer	208	23678.7	2	UniProt (Q3LFS8) Pfam (PF07686) Pfam (PF13927) UniProt (by SIFTS) (P31809)	Mus musculus (Mouse)
2	B, D (B, D)	Spike glycoprotein	polymer	288	32285.5	2	UniProt (S5ZBM1) Pfam (PF16451) UniProt (by SIFTS) (Q9J3E7)	Murine coronavirus	S glycoprotein,E2,Peplomer protein
3	E, F (E, F)	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	branched		424.4	2	In PDB GlyTouCan (G42666HT)
4	G, H, I, J, K... (A, B, C, D)	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	6	Chemie (NAG)
5	M, N, O, P (A, B, C, D)	water	water		18.0	68	Chemie (HOH)

Sequence modifications

A, C: 1 - 202 (UniProt: Q3LFS8)

PDB	External Database	Details
His 203	-	expression tag
His 204	-	expression tag
His 205	-	expression tag
His 206	-	expression tag
His 207	-	expression tag
His 208	-	expression tag

B, D: 15 - 296 (UniProt: S5ZBM1)

PDB	External Database	Details
His 297	-	expression tag
His 298	-	expression tag
His 299	-	expression tag
His 300	-	expression tag
His 301	-	expression tag
His 302	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	111928.3
Branched	Number of molecules	2
	Total formula weight	848.8
Non-Polymers*	Number of molecules	6
	Total formula weight	1327.2
All*	Total formula weight	114104.4

*Water molecules are not included.