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(-) Description

Title :  CRYSTAL STRUCTURE OF THE HK20 FAB IN COMPLEX WITH A GP41 MIMETIC 5-HELIX
 
Authors :  C. Sabin, D. Corti, V. Buzon, M. S. Seaman, D. Lutje-Hulsik, A. Hinz, F. V G. Agatic, C. Silacci, J. P. M. Langedijk, L. Mainetti, G. Scarlatti, F. Sallusto, R. Weiss, A. Lanzavecchia, W. Weissenhorn
Date :  13 Sep 10  (Deposition) - 15 Dec 10  (Release) - 28 Dec 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.30
Chains :  Asym./Biol. Unit :  A,H,L
Keywords :  Immune System, Antibody, Monoclonal Cells, Neutralization Tests (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  C. Sabin, D. Corti, V. Buzon, M. S. Seaman, D. Lutje Hulsik, A. Hinz, F. Vanzetta, G. Agatic, C. Silacci, L. Mainetti, G. Scarlatti, F. Sallusto, R. Weiss, A. Lanzavecchia, W. Weissenhorn
Crystal Structure And Size-Dependent Neutralization Properties Of Hk20, A Human Monoclonal Antibody Binding To The Highly Conserved Heptad Repeat 1 Of Gp41.
Plos Pathog. V. 6 1195 2010
PubMed-ID: 21124990  |  Reference-DOI: 10.1371/JOURNAL.PPAT.1001195
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - TRANSMEMBRANE PROTEIN GP41
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System StrainBL21(DE3) GOLD
    Expression System Taxid469008
    Expression System VectorPETM-13 (EMBL, HEIDELBERG)
    Fragment5-HELIX INNER-CORE MIMETIC COMPRISED OF REPEATS OF RESIDUES 543-582 AND 625-662
    Organism ScientificSYNTHETIC CONSTRUCT
    Organism Taxid32630
    Other DetailsSEQUENCE DERIVED FROM UNIPROT AC P04578 WHERE THREE REGIONS EACH EQUIVALENT TO AA 543-582 ARE INTERSPERSED BY TWO DIFFERENT REGIONS (EACH EQUIVALENT TO AA 625-662). LINKERS GGSGG AND GSSGG JOIN THE REGIONS AND ALTERNATE STARTING WITH GGSGG. A METHIONINE INITIATES AND A TAIL CONTAINS GGHHHHHHG. CF: ROOT ET AL, SCIENCE: VOL. 291. NO. 5505,PP. 884-888,2001
 
Molecule 2 - HK20, HUMAN MONOCLONAL ANTIBODY HEAVY CHAIN
    CellMEMORY B-LYMPHOCYTE
    ChainsH
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    TissueBLOOD
 
Molecule 3 - HK20, HUMAN MONOCLONAL ANTIBODY LIGHT CHAIN
    CellMEMORY B-LYMPHOCYTE
    ChainsL
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    TissueBLOOD

 Structural Features

(-) Chains, Units

  123
Asymmetric/Biological Unit AHL

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 2XRA)

(-) Sites  (0, 0)

(no "Site" information available for 2XRA)

(-) SS Bonds  (4, 4)

Asymmetric/Biological Unit
No.Residues
1H:22 -H:92
2H:140 -H:196
3L:23 -L:88
4L:134 -L:194

(-) Cis Peptide Bonds  (15, 15)

Asymmetric/Biological Unit
No.Residues
1Ala A:582 -Gly A:583
2Gly A:583 -Gly A:584
3Pro H:41 -Gly H:42
4Gly H:42 -Gln H:43
5Pro H:126 -Ser H:127
6Ser H:128 -Lys H:129
7Ser H:132 -Gly H:133
8Gly H:133 -Gly H:134
9Phe H:146 -Pro H:147
10Glu H:148 -Pro H:149
11Asp L:1 -Ile L:2
12Ser L:7 -Pro L:8
13Leu L:94 -Pro L:95
14Tyr L:140 -Pro L:141
15Arg L:211 -Gly L:212

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2XRA)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2XRA)

(-) Exons   (0, 0)

(no "Exon" information available for 2XRA)

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it)
Chain A from PDB  Type:PROTEIN  Length:203
 aligned with ENV_HV1H2 | P04578 from UniProtKB/Swiss-Prot  Length:856

    Alignment length:591
                                   268       278       288       298       308       318       328       338       348       358       368       378       388       398       408       418       428       438       448       458       468       478       488       498       508       518       528       538       548       558       568       578       588       598       608       618       628       638       648       658       668       678       688       698       708       718       728       738       748       758       768       778       788       798       808       818       828       838       848 
           ENV_HV1H2    259 LLLNGSLAEEEVVIRSVNFTDNAKTIIVQLNTSVEINCTRPNNNTRKRIRIQRGPGRAFVTIGKIGNMRQAHCNISRAKWNNTLKQIASKLREQFGNNKTIIFKQSSGGDPEIVTHSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTITLPCRIKQIINMWQKVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSNNESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKRRVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERYLKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNHTTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWASLWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSIVNRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRLVNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQGACRAIRHIPRRIRQ  849
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -----------------    -----------                                               --  --------              ----                         -----  -------                            ----------------          -------------                                                                     GP41-2xraA01 A:2543-3662                                                                                                --                                                                                  -----                             ------           ----                 ------      ------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhh----hhhhhhhhhhh-----------------------------------------------hh--hhhhhhhh--------------hh..-------------------------.hhhh--hhhhhhh----------------------------hhhhhhhhhhhhhhhh----------hhhhhhhhh...h---------------------------------------------------------------------hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh------------------------------------------hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...----------------------------------------------------------------------------------hhhhh-----------------------------hhhhhh-----------hhhh-----------------hhhhhh------hhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                2xra A  543 QLLSGIVQQQNNLLRAI----EAQQHLLQLTV-----------------------------------------------WG--IKQLQARI--------------LAGG-------------------------TTWME--WDREINN----------------------------YTSLIHSLIEESQNQQ----------EKNEQELLEGSGG---------------------------------------------------------------------QLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL------------------------------------------GHTTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEGS----------------------------------------------------------------------------------QLLSG-----------------------------IVQQQN-----------NLLR-----------------AIEAQQ------HLLQLTVWGIKQLQARILA 4582
                                   552      |  - |     568 |       -         -         -         -       571|  |   579|        -     |  |-         -         -    |   |- |     | -         -         -      1641      1651 |       -  |   1661  |||    -         -         -         -         -         -         -    | 2548      2558      2568      2578  |      -         -         -         -     |3628      3638      3648      3658     |   -         -         -         -         -         -         -         -      4544  |      -         -         -  |    | -      4554  |      -         -|    |   -  |   4571      4581 
                                          559  560       570                                             571|  |    580            581  |                      1626   |  |  1637                         1638           1653       1654      1664||                                                                  2543                                  2581                                       3624                                    3664                                                                               4543   |                          4548 4553        4554  |              4558 4563   4564                  
                                                                                                          572  |                      584                          1630  |                                                                    2541|                                                                                                                                                                                                                                                                                  4547                                              4557                                                
                                                                                                             573                                                      1631                                                                     2542                                                                                                                                                                                                                                                                                                                                                                                        

Chain H from PDB  Type:PROTEIN  Length:223
                                                                                                                                                                                                                                                                
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eee...eee.....eeeeeee...hhhhh.eeeeee.....eeeeeeeehhhheeee.......eeeeeehhh.eeeeee........eeeeeeee.........eeee...eeeee........eeeee..........eeeeeeeeeee.....eeee.hhh....eee...ee.....eeeeeeeeee........eeeeeeehhhheeeeeee..... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                2xra H    3 QLVESGAEVKKPGSSVKVSCKTSGGTFNRLAMSWVRQAPGQGLEWMGGIMPIFDITNYAQKFQGRVTIITDESTSTAYMELRSLTSEDSAVYYCARASYSSSSPYAFDIWGQGTMVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSC  216
                                    12        22        32        42        52|       61        71        81 |||    88        98  |||||103       113       123       133       143       153       163       173       183       193       203       213   
                                                                            52A                            82A||               100A||||                                                                                                                    
                                                                                                            82B|                100B|||                                                                                                                    
                                                                                                             82C                 100C||                                                                                                                    
                                                                                                                                  100D|                                                                                                                    
                                                                                                                                   100E                                                                                                                    

Chain L from PDB  Type:PROTEIN  Length:215
                                                                                                                                                                                                                                                        
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeee..ee.......eeeeeee.......eeeeee......eeeee...ee.......eeeee...eeeeee...hhhhh.eeeeeeee...eeee...eee.........eeeee..hhhhhhh...eeeeeeeee....eeeeeee...ee...eeeee.........eeeeeeee.hhhhhh...eeeeeeee......eeeeee.... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                2xra L    1 DIQMTQSPSSLSPSVGDRVTITCQASQDIRNHLNWYQQKPGKAPKLLIYDASNLATGVPSRFSGSGSGTDFTFTISSLQPEDLATYYCQHYDDLPRITFGQGTRLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGGC  214
                                    10        20        30        40        50        60        70        80        90     |  99       109       119       129       139       149       159       169       179       189       199       209     
                                                                                                                         95A                                                                                                                       

   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (0, 0)

(no "SCOP Domain" information available for 2XRA)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2XRA)

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit

(-) Gene Ontology  (32, 32)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (ENV_HV1H2 | P04578)
molecular function
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0005198    structural molecule activity    The action of a molecule that contributes to the structural integrity of a complex or its assembly within or outside a cell.
biological process
    GO:0090527    actin filament reorganization    A process that is carried out at the cellular level which results in dynamic structural changes to the arrangement of actin filaments.
    GO:0075512    clathrin-dependent endocytosis of virus by host cell    Any clathrin-mediated endocytosis that is involved in the uptake of a virus into a host cell. Begins by invagination of a specific region of the host cell plasma membrane around the bound virus to form a clathrin-coated pit, which then pinches off to form a clathrin-coated endocytic vesicle containing the virus.
    GO:0075509    endocytosis involved in viral entry into host cell    Any endocytosis that is involved in the uptake of a virus into a host cell.
    GO:0030260    entry into host cell    The invasion by an organism of a cell of its host organism. The host is defined as the larger of the organisms involved in a symbiotic interaction.
    GO:0030683    evasion or tolerance by virus of host immune response    Any process, either active or passive, by which a virus avoids the effects of the host organism's immune response. The host is defined as the larger of the organisms involved in a symbiotic interaction.
    GO:0039654    fusion of virus membrane with host endosome membrane    Fusion of a virus membrane with a host endosome membrane. Occurs after internalization of the virus through the endosomal pathway, and results in release of the virus contents into the cell.
    GO:0019064    fusion of virus membrane with host plasma membrane    Fusion of a viral membrane with the host cell membrane during viral entry. Results in release of the virion contents into the cytoplasm.
    GO:0039663    membrane fusion involved in viral entry into host cell    Merging of the virion membrane and a host membrane (host plasma membrane or host organelle membrane) that is involved in the uptake of a virus into a host cell.
    GO:1903905    positive regulation of establishment of T cell polarity    Any process that activates or increases the frequency, rate or extent of establishment of T cell polarity.
    GO:1903908    positive regulation of plasma membrane raft polarization    Any process that activates or increases the frequency, rate or extent of plasma membrane raft polarization.
    GO:1903911    positive regulation of receptor clustering    Any process that activates or increases the frequency, rate or extent of receptor clustering.
    GO:0002223    stimulatory C-type lectin receptor signaling pathway    Any series of molecular signals generated as a consequence of binding to a C-type lectin receptor capable of cellular activation.
    GO:0046718    viral entry into host cell    The process that occurs after viral attachment by which a virus, or viral nucleic acid, breaches the plasma membrane or cell envelope and enters the host cell. The process ends when the viral nucleic acid is released into the host cell cytoplasm.
    GO:0019058    viral life cycle    A set of processes which all viruses follow to ensure survival; includes attachment and entry of the virus particle, decoding of genome information, translation of viral mRNA by host ribosomes, genome replication, and assembly and release of viral particles containing the genome.
    GO:0016032    viral process    A multi-organism process in which a virus is a participant. The other participant is the host. Includes infection of a host cell, replication of the viral genome, and assembly of progeny virus particles. In some cases the viral genetic material may integrate into the host genome and only subsequently, under particular circumstances, 'complete' its life cycle.
    GO:0019082    viral protein processing    Any protein maturation process achieved by the cleavage of a peptide bond or bonds within a viral protein.
    GO:0019068    virion assembly    A late phase of the viral life cycle during which all the components necessary for the formation of a mature virion collect at a particular site in the cell and the basic structure of the virus particle is formed.
    GO:0019062    virion attachment to host cell    The process by which a virion protein binds to molecules on the host cellular surface or host cell surface projection.
cellular component
    GO:0000139    Golgi membrane    The lipid bilayer surrounding any of the compartments of the Golgi apparatus.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
    GO:0005789    endoplasmic reticulum membrane    The lipid bilayer surrounding the endoplasmic reticulum.
    GO:0044174    host cell endosome    A membrane-bounded organelle that carries materials newly ingested by endocytosis. It passes many of the materials to host cell lysosomes for degradation.
    GO:0044175    host cell endosome membrane    The lipid bilayer surrounding a host cell endosome.
    GO:0033644    host cell membrane    Double layer of lipid molecules as it encloses host cells, and, in eukaryotes, many organelles; may be a single or double lipid bilayer; also includes associated proteins. The host is defined as the larger of the organisms involved in a symbiotic interaction.
    GO:0020002    host cell plasma membrane    The plasma membrane surrounding a host cell.
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0019031    viral envelope    The lipid bilayer of a virion that surrounds the protein capsid. May also contain glycoproteins.
    GO:0019012    virion    The complete fully infectious extracellular virus particle.
    GO:0055036    virion membrane    The lipid bilayer surrounding a virion.

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  Cis Peptide Bonds
    Ala A:582 - Gly A:583   [ RasMol ]  
    Arg L:211 - Gly L:212   [ RasMol ]  
    Asp L:1 - Ile L:2   [ RasMol ]  
    Glu H:148 - Pro H:149   [ RasMol ]  
    Gly A:583 - Gly A:584   [ RasMol ]  
    Gly H:133 - Gly H:134   [ RasMol ]  
    Gly H:42 - Gln H:43   [ RasMol ]  
    Leu L:94 - Pro L:95   [ RasMol ]  
    Phe H:146 - Pro H:147   [ RasMol ]  
    Pro H:126 - Ser H:127   [ RasMol ]  
    Pro H:41 - Gly H:42   [ RasMol ]  
    Ser H:128 - Lys H:129   [ RasMol ]  
    Ser H:132 - Gly H:133   [ RasMol ]  
    Ser L:7 - Pro L:8   [ RasMol ]  
    Tyr L:140 - Pro L:141   [ RasMol ]  
 

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        ENV_HV1H2 | P045781aik 1df4 1df5 1dlb 1g9m 1gc1 1gzl 1k33 1k34 1mzi 1opn 1opt 1opw 1rzj 2cmr 2me1 2mg1 2mg2 2mg3 2ny7 2pv6 2x7r 2zzo 3d0v 3dnl 3dnn 3dno 3dro 3idx 3idy 3j70 3tyg 3vie 4jpj 4jpk 4ydv 4zto 5bn0 5c0r 5c0s 5cil 5cin 5cmu 5cmz 5cn0 5dd0 5ghw 5h0n 5hfl 5hm1 5ivx 5ka5 5ka6 5x08

(-) Related Entries Specified in the PDB File

1aik HIV GP41 CORE STRUCTURE
1df4 INTERACTIONS BETWEEN HIV-1 GP41 CORE AND DETERGENTS AND THEIR IMPLICATIONS FOR MEMBRANE FUSION
1df5 INTERACTIONS BETWEEN HIV-1 GP41 CORE AND DETERGENTS AND THEIR IMPLICATIONS FOR MEMBRANE FUSION
1dlb HELICAL INTERACTIONS IN THE HIV-1 GP41 CORE REVEALS STRUCTURAL BASIS FOR THE INHIBITORY ACTIVITY OF GP41 PEPTIDES
1g9m HIV-1 HXBC2 GP120 ENVELOPE GLYCOPROTEIN COMPLEXED WITH CD4AND INDUCED NEUTRALIZING ANTIBODY 17B
1gc1 HIV-1 GP120 CORE COMPLEXED WITH CD4 AND A NEUTRALIZING HUMAN ANTIBODY
1gzl CRYSTAL STRUCTURE OF C14LINKMID/IQN17: A CROSS-LINKED INHIBITOR OF HIV-1 ENTRY BOUND TO THE GP41 HYDROPHOBIC POCKET
1k33 CRYSTAL STRUCTURE ANALYSIS OF THE GP41 CORE MUTANT
1k34 CRYSTAL STRUCTURE ANALYSIS OF GP41 CORE MUTANT
1mzi SOLUTION ENSEMBLE STRUCTURES OF HIV-1 GP41 2F5 MAB EPITOPE
1opn THEORETICAL MODEL OF CCR5 RECEPTOR IN COMPLEX WITH HIVGP120 ENVELOPE GLYCOPROTEIN AND CD4 RECEPTOR
1opt THEORETICAL MODEL OF CCR5 RECEPTOR IN COMPLEX WITH HIVGP120 ENVELOPE GLYCOPROTEIN AND CD4 RECEPTOR
1opw THEORETICAL MODEL OF CCR5 RECEPTOR IN COMPLEX WITH HIVGP120 ENVELOPE GLYCOPROTEIN AND CD4 RECEPTOR
1rzj HIV-1 HXBC2 GP120 ENVELOPE GLYCOPROTEIN COMPLEXED WITH CD4AND INDUCED NEUTRALIZING ANTIBODY 17B
2cmr CRYSTAL STRUCTURE OF THE HIV-1 NEUTRALIZING ANTIBODY D5 FAB BOUND TO THE GP41 INNER -CORE MIMETIC 5-HELIX