ISDA

Entry Detail

PDB ID:

1RZJ

Keywords:

Viral protein/Immune system

Title:

HIV-1 HXBC2 GP120 ENVELOPE GLYCOPROTEIN COMPLEXED WITH CD4 AND INDUCED NEUTRALIZING ANTIBODY 17B

Biological Source:

Source Organism:

Human immunodeficiency virus 1, Homo sapiens

Host Organism:

Drosophila melanogaster

PDB Version:

Deposition Date:

2003-12-24

Release Date:

2004-02-03

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.20 Å

R-Value Free:

0.32

R-Value Work:

0.26

R-Value Observed:

0.26

Space Group:

P 2 2 21

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:T-CELL SURFACE GLYCOPROTEIN CD4
Mutations:S184N, I185T
Chain IDs:B (auth: C)
Chain Length:185
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P01730 Pfam ID:PF00047, PF05790

Protein Blast

Polymer Type:polypeptide(L)
Description:ENVELOPE GLYCOPROTEIN GP120
Mutations:VARIABLE LOOPS SUBSTITUTED
Chain IDs:A (auth: G)
Chain Length:321
Number of Molecules:1
Biological Source:Human immunodeficiency virus 1

UniProt ID:P04578 Pfam ID:PF00516

Polymer Type:polypeptide(L)
Description:ANTIBODY 17B, HEAVY CHAIN
Chain IDs:D (auth: H)
Chain Length:229
Number of Molecules:1
Biological Source:Homo sapiens

Polymer Type:polypeptide(L)
Description:ANTIBODY 17B, LIGHT CHAIN
Chain IDs:C (auth: L)
Chain Length:214
Number of Molecules:1
Biological Source:Homo sapiens

Modified Residue

Compound ID	Chain ID	Parent Comp ID	Details	2D Image
ASN	A	ASN	GLYCOSYLATION SITE

Ligand Molecules

IPA

NAG

Primary Citation

Structural basis of tyrosine sulfation and VH-gene usage in antibodies that recognize the HIV type 1 coreceptor-binding site on gp120

Huang, C.C, Venturi, M, Majeed, S, Moore, M.J, Phogat, S, Zhang, M.-Y, Dimitrov, D.S, Hendrickson, W.A, Robinson, J, Sodroski, J, Wyatt, R, Choe, H, Farzan, M, Kwong, P.D, Kwong, P.D, Wyatt, R, Majeed, S, Robinson, J, Sweet, R.W, Sodroski, J, Hendrickson, W.A.Show

Proc.Natl.Acad.Sci.USA 101 2706 2711 (2004)

PMID: 14981267 DOI: 10.1073/pnas.0308527100

Abstact

The conserved surface of the HIV-1 gp120 envelope glycoprotein that binds to the HIV-1 coreceptor is protected from humoral recognition by multiple layers of camouflage. Here we present sequence and genomic analyses for 12 antibodies that pierce these defenses and determine the crystal structures of 5. The data reveal mechanisms and atomic-level details for three unusual immune features: posttranslational mimicry of coreceptor by tyrosine sulfation of antibody, an alternative molecular mechanism controlling such sulfation, and highly selective V(H)-gene usage. When confronted by extraordinary viral defenses, the immune system unveils novel adaptive capabilities, with tyrosine sulfation enhancing the vocabulary of antigen recognition.

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Primary Citation of related structures