ISDA

Entry Detail

PDB ID:

3MNV

Keywords:

IMMUNE SYSTEM

Title:

Crystal structure of the non-neutralizing HIV antibody 13H11 Fab fragment

Biological Source:

Source Organism:

Mus musculus, Homo sapiens

Host Organism:

Homo sapiens

PDB Version:

Deposition Date:

2010-04-22

Release Date:

2010-11-17

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.40 Å

R-Value Free:

0.22

R-Value Work:

0.18

R-Value Observed:

0.18

Space Group:

P 61

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:ANTI-HIV-1 ANTIBODY 13H11 LIGHT CHAIN
Chain IDs:A, C
Chain Length:224
Number of Molecules:2
Biological Source:Mus musculus, Homo sapiens

UniProt ID:Q8TCD0 Pfam ID:PF07686, PF07654

Protein Blast

Polymer Type:polypeptide(L)
Description:ANTI-HIV-1 ANTIBODY 13H11 HEAVY CHAIN
Chain IDs:B, D
Chain Length:219
Number of Molecules:2
Biological Source:Mus musculus, Homo sapiens

UniProt ID:Q6N089 Pfam ID:PF07686, PF07654

Ligand Molecules

EDO

NO3

SO4

Primary Citation

Crystal structure of a non-neutralizing antibody to the HIV-1 gp41 membrane-proximal external region.

Nicely, N.I, Dennison, S.M, Spicer, L, Scearce, R.M, Kelsoe, G, Ueda, Y, Chen, H, Liao, H.X, Alam, S.M, Haynes, B.F.Show

Nat.Struct.Mol.Biol. 17 1492 1494 (2010)

PMID: 21076400 DOI: 10.1038/nsmb.1944

Abstact

The monoclonal antibody 13H11 shares part of its epitope in the HIV-1 gp41 membrane-proximal external region (MPER) with the rare, broadly neutralizing human antibody 2F5. Although 13H11 partially cross-blocked 2F5 binding, 13H11 is non-neutralizing and does not block 2F5 neutralization. We show that unlike 2F5, 13H11 binds to a well-defined helical MPER structure that is consistent with the structure of gp41 in a post-fusion six-helix bundle conformation.

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Primary Citation of related structures