Structure of PDB 3s4s Chain A

Receptor sequence
>3s4sA (length=178) Species: 9606 (Homo sapiens) [Search protein sequence]
EEHVIIQAEFYLNPDQSGEFMFDFDGDEIFHVDMAKKETVWRLEEFGRFA
SFEAQGALANIAVDKANLEIMTKRSNYTPITNVPPEVTVLTNSPVELREP
NVLICFIDKFTPPVVNVTWLRNGKPVTTGVSETVFLPREDHLFRKFHYLP
FLPSTEDVYDCRVEHWGLDEPLLKQWEF
3D structure
PDB3s4s Affinity maturation of human CD4 by yeast surface display and crystal structure of a CD4-HLA-DR1 complex.
ChainA
Resolution2.4 Å
3D
structure
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Enzymatic activity
Enzyme Commision number ?
Interaction with ligand
Site
#
Ligand Ligand
chain
Binding residues on receptor
(original residue number in PDB)
Binding residues on receptor
(residue number reindexed from 1)
Binding affinity
BS01 peptide A Q9 W43 F51 A52 S53 F54 G58 N62 V65 N69 I72 M73 Q7 W41 F49 A50 S51 F52 G56 N60 V63 N67 I70 M71
Gene Ontology
Biological Process
GO:0006955 immune response
GO:0019882 antigen processing and presentation
Cellular Component
GO:0016020 membrane
GO:0042613 MHC class II protein complex

View graph for
Biological Process

View graph for
Cellular Component
External links
PDB RCSB:3s4s, PDBe:3s4s, PDBj:3s4s
PDBsum3s4s
PubMed21900604
UniProtP01903|DRA_HUMAN HLA class II histocompatibility antigen, DR alpha chain (Gene Name=HLA-DRA)

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