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(-) Description

Title :  STRUCTURE OF ACID-SENSING ION CHANNEL IN COMPLEX WITH SNAKE TOXIN AND AMILORIDE
 
Authors :  I. Baconguis, C. J. Bohlen, A. Goehring, D. Julius, E. Gouaux
Date :  02 Dec 13  (Deposition) - 19 Feb 14  (Release) - 12 Mar 14  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.27
Chains :  Asym. Unit :  A,B,C
Biol. Unit 1:  A,B,C  (1x)
Biol. Unit 2:  A,B,C  (3x)
Keywords :  Kunitz, Phospholipase A2-Like, Ion Channel, Nociception, Membrane, Transport Protein-Toxin Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  I. Baconguis, C. J. Bohlen, A. Goehring, D. Julius, E. Gouaux
X-Ray Structure Of Acid-Sensing Ion Channel 1-Snake Toxin Complex Reveals Open State Of A Na(+)-Selective Channel.
Cell(Cambridge, Mass. ) V. 156 717 2014
PubMed-ID: 24507937  |  Reference-DOI: 10.1016/J.CELL.2014.01.011

(-) Compounds

Molecule 1 - ACID-SENSING ION CHANNEL 1
    ChainsA
    EngineeredYES
    Expression SystemHOMO SAPIENS
    Expression System Cell LineHUMAN EMBRYONIC KIDNEY CELLS
    Expression System Taxid9606
    FragmentUNP RESIDUES 14-463
    GeneASIC1, ACCN2
    Organism CommonBANTAM,CHICKENS
    Organism ScientificGALLUS GALLUS
    Organism Taxid9031
    SynonymASIC1, AMILORIDE-SENSITIVE CATION CHANNEL 2, NEURONAL
 
Molecule 2 - NEUROTOXIN MITTX-ALPHA
    ChainsB
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    Organism CommonTEXAS CORAL SNAKE
    Organism ScientificMICRURUS TENER TENER
    Organism Taxid1114302
 
Molecule 3 - BASIC PHOSPHOLIPASE A2 HOMOLOG TX-BETA
    ChainsC
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    Organism CommonTEXAS CORAL SNAKE
    Organism ScientificMICRURUS TENER TENER
    Organism Taxid1114302
    SynonymSVPLA2 HOMOLOG, MITTX-BETA

 Structural Features

(-) Chains, Units

  123
Asymmetric Unit ABC
Biological Unit 1 (1x)ABC
Biological Unit 2 (3x)ABC

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (6, 11)

Asymmetric Unit (6, 11)
No.NameCountTypeFull Name
1AMR3Ligand/Ion3,5-DIAMINO-N-(AMINOIMINOMETHYL)-6-CHLOROPYRAZINECARBOXAMIDE
2CL1Ligand/IonCHLORIDE ION
3NA3Ligand/IonSODIUM ION
4NAG2Ligand/IonN-ACETYL-D-GLUCOSAMINE
5P6G1Ligand/IonHEXAETHYLENE GLYCOL
6PCA1Mod. Amino AcidPYROGLUTAMIC ACID
Biological Unit 1 (4, 7)
No.NameCountTypeFull Name
1AMR3Ligand/Ion3,5-DIAMINO-N-(AMINOIMINOMETHYL)-6-CHLOROPYRAZINECARBOXAMIDE
2CL-1Ligand/IonCHLORIDE ION
3NA-1Ligand/IonSODIUM ION
4NAG2Ligand/IonN-ACETYL-D-GLUCOSAMINE
5P6G1Ligand/IonHEXAETHYLENE GLYCOL
6PCA1Mod. Amino AcidPYROGLUTAMIC ACID
Biological Unit 2 (4, 21)
No.NameCountTypeFull Name
1AMR9Ligand/Ion3,5-DIAMINO-N-(AMINOIMINOMETHYL)-6-CHLOROPYRAZINECARBOXAMIDE
2CL-1Ligand/IonCHLORIDE ION
3NA-1Ligand/IonSODIUM ION
4NAG6Ligand/IonN-ACETYL-D-GLUCOSAMINE
5P6G3Ligand/IonHEXAETHYLENE GLYCOL
6PCA3Mod. Amino AcidPYROGLUTAMIC ACID

(-) Sites  (9, 9)

Asymmetric Unit (9, 9)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREILE A:282 , ASN A:367BINDING SITE FOR RESIDUE NAG A 501
2AC2SOFTWAREASN A:394BINDING SITE FOR RESIDUE NAG A 502
3AC3SOFTWAREARG A:310 , GLU A:314BINDING SITE FOR RESIDUE CL A 503
4AC4SOFTWARETHR A:237 , THR A:240BINDING SITE FOR RESIDUE NA A 505
5AC5SOFTWARELEU A:96 , GLU A:98 , ARG A:176 , GLY A:177 , ARG A:191 , TYR A:192 , THR A:215 , GLY A:218 , GLU A:220 , ASP A:238 , THR A:240 , SER A:241 , ASP A:408 , AMR A:508 , AMR A:509BINDING SITE FOR RESIDUE P6G A 506
6AC6SOFTWAREARG A:65 , ALA A:428 , GLY A:432 , GLN A:437BINDING SITE FOR RESIDUE AMR A 507
7AC7SOFTWAREPHE A:174 , GLY A:177 , GLU A:236 , GLU A:354 , P6G A:506 , AMR A:509BINDING SITE FOR RESIDUE AMR A 508
8AC8SOFTWAREGLU A:236 , THR A:237 , ASP A:350 , GLU A:354 , P6G A:506 , AMR A:508 , ASN C:83BINDING SITE FOR RESIDUE AMR A 509
9AC9SOFTWAREPHE C:68BINDING SITE FOR RESIDUE NA C 201

(-) SS Bonds  (17, 17)

Asymmetric Unit
No.Residues
1A:94 -A:195
2A:173 -A:180
3A:291 -A:366
4A:309 -A:362
5A:313 -A:360
6A:322 -A:344
7A:324 -A:336
8B:7 -B:58
9B:17 -B:41
10B:33 -B:54
11C:11 -C:70
12C:25 -C:118
13C:27 -C:43
14C:42 -C:100
15C:49 -C:93
16C:59 -C:86
17C:79 -C:91

(-) Cis Peptide Bonds  (3, 3)

Asymmetric Unit
No.Residues
1Pro A:286 -Pro A:287
2Ile A:380 -Pro A:381
3Cys C:27 -Val C:28

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 4NTX)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 4NTX)

(-) Exons   (0, 0)

(no "Exon" information available for 4NTX)

(-) Sequences/Alignments

Asymmetric 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:410
                                                                                                                                                                                                                                                                                                                                                                                                                                                          
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhh...eeeeeeee....ee..eeeeee....hhhhhhhhhhhhhh..................hhhhhhhhhhhh..........hhhhhhhhhh.hhhhheeeeee..ee.hhh.eeeeee..eeeeee..........ee...hhhh.eeeeee.hhhhh...............eeeeee......hhhhhheee...eeeeeeeeeeeee....................hhhhhhhhhhhhhhhhhhh.............hhhhhhhhhhhhhhhhhhh...........eeeeeeeeeeeee..hhhhhhhhhhhhh.hhhhhhhheeeeeeee....eeeeeeee..hhhhhhhhhhhhhhhhh..hhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4ntx A  45 VVWALCFMGSLALLALVCTNRIQYYFLYPHVTKLDEVAATRLTFPAVTFCNLNEFRFSRVTKNDLYHAGELLALLNNRYEIPDTQTADEKQLEILQDKANFRNFKPKPFNMLEFYDRAGHDIREMLLSCFFRGEQCSPEDFKVVFTRYGKCYTFNAGQDGKPRLITMKGGTGNGLEIMLDIQQDEYLPVWGETDETSFEAGIKVQIHSQDEPPLIDQLGFGVAPGFQTFVSCQEQRLIYLPPPWGDCKATTGEFYDTYSITACRIDCETRYLVENCNCRMVHMPGDAPYCTPEQYKECADPALDFLVEKDNEYCVCEMPCNVTRYGKELSMVKIPSKASAKYLAKKYNKSEQYIGENILVLDIFFEALNYETIEQKKAYEVAGLLGDIGGQMGLFIGASILTVLELFDYA 456
                                    54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294 ||    306       316       326       336       346       356       366       376       386       396       406       416       426       436       446       456
                                                                                                                                                                                                                                                                                     296|                                                                                                                                                             
                                                                                                                                                                                                                                                                                      299                                                                                                                                                             

Chain B from PDB  Type:PROTEIN  Length:60
                                                                                            
               SCOP domains d4ntxb_ B: automated matches                                 SCOP domains
               CATH domains ------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------ Pfam domains
         Sec.struct. author ...hhhhhh...........eeeeeee....eeeeeee...........hhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------ Transcript
                 4ntx B   1 xIRPAFCYEDPPFFQKCGAFVDSYYFNRSRITCVHFFYGQCDVNQNHFTTMSECNRVCHG  60
                            |       10        20        30        40        50        60
                            1-PCA                                                       

Chain C from PDB  Type:PROTEIN  Length:118
                                                                                                                                                      
               SCOP domains d4ntxc_ C: automated matches                                                                                           SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhh...hhhhhh..............hhhhhhhhhhhhhhhhhhhhhh..............hhhhh......hhhhhhhhhhhhhhhhhhhhh..hhhhh..hhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------- Transcript
                 4ntx C   1 NLNQFRLMIKCTNDRVWADFVDYGCYCVARDSNTPVDDLDRCCQAQKQCYDEAVKVHGCKPLVMFYSFECRYLASDLDCSGNNTKCRNFVCNCDRTATLCILTATYNRNNHKIDPSRC 118
                                    10        20        30        40        50        60        70        80        90       100       110        

   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
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  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  (2, 2)

Asymmetric Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 4NTX)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 4NTX)

(-) Gene Ontology  (33, 34)

Asymmetric Unit(hide GO term definitions)

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 Related Entries

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

UniProtKB/Swiss-Prot
        ASIC1_CHICK | Q1XA762qts 3ij4 3s3w 3s3x 4fz0 4fz1 4ntw 4nty 4nyk
        PA2HB_MICTN | G9I9304ntw 4nty
        VKTA_MICTN | G9I9294ntw 4nty

(-) Related Entries Specified in the PDB File

2qts 3hgc 4fz0 4ntw 4nty 4nyk