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28ZB

Crystal Structure of HLA class II major histocompatibility complex bound to HCMV-IE1 peptide

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, C, E, G
(A, D, G, J)
HLA class II histocompatibility antigen, DR alpha chainpolymer20223492.34UniProt (P01903)
Pfam (PF00993)
Pfam (PF07654)
Homo sapiens (human)MHC class II antigen DRA
2B, D, F, H
(B, E, H, K)
Regulatory protein IE1,HLA class II histocompatibility antigen DR beta chainpolymer23927135.24UniProt (Q5Y7D1)
Pfam (PF00969)
Pfam (PF07654)
Human cytomegalovirusHLA-DRB1 protein,MHC class II antigen,Major histocompatibility complex,class II,DR beta 1
3I, J, M, N, P
(A, B, E, H)
PHOSPHATE IONnon-polymer95.05Chemie (PO4)
PubChem (1061)
4K, L, O, Q
(D, E, G, K)
2-acetamido-2-deoxy-beta-D-glucopyranosenon-polymer221.24Chemie (NAG)
PubChem (24139)
5R, S, T, U, V...
(A, B, D, E, G...)
waterwater18.0143Chemie (HOH)
Sequence modifications
A, D, G, J: 26 - 216 (UniProt: P01903)
PDBExternal DatabaseDetails
Asp 217-expression tag
Asp 218-expression tag
Asp 219-expression tag
Asp 220-expression tag
Lys 221-expression tag
Glu 222-expression tag
Asn 223-expression tag
Leu 224-expression tag
Tyr 225-expression tag
Phe 226-expression tag
Gln 227-expression tag
B, E, H, K: -30 - -16 (PDB: 28ZB)
PDBExternal DatabaseDetails
Gly 15-linker
Gly 16-linker
Gly 17-linker
Gly 18-linker
Ser 19-linker
Gly 20-linker
Gly 21-linker
Gly 22-linker
Gly 23-linker
Ser 24-linker
Gly 25-linker
Gly 26-linker
Gly 27-linker
Gly 28-linker
Ser 29-linker
B, E, H, K: 30 - 219 (UniProt: Q5Y7D1)
PDBExternal DatabaseDetails
Leu 220-expression tag
Glu 221-expression tag
Thr 222-expression tag
Val 223-expression tag
Pro 224-expression tag
Arg 225-expression tag
Ser 226-expression tag
Gly 227-expression tag
Glu 228-expression tag
Val 229-expression tag
Tyr 230-expression tag
Thr 231-expression tag
Cys 232-expression tag
Gln 233-expression tag
Val 234-expression tag
Glu 235-expression tag
His 236-expression tag
Pro 237-expression tag
Ser 238-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains8
Total formula weight202509.9
Non-Polymers*Number of molecules9
Total formula weight1359.7
All*Total formula weight203869.6
*Water molecules are not included.

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PDB entries from 2026-07-22

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