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(-) Description

Title :  CRYSTAL STRUCTURE OF THE EXTRACELLULAR DOMAIN OF HUMAN GABA(B) RECEPTOR BOUND TO THE ANTAGONIST 2-HYDROXYSACLOFEN
 
Authors :  Y. Geng, M. Bush, L. Mosyak, F. Wang, Q. R. Fan
Date :  16 Sep 13  (Deposition) - 11 Dec 13  (Release) - 05 Feb 14  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.22
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Heterodimeric Protein Complex, Venus Flytrap Module, Neurotransmitter Receptor, Signaling Protein-Antagonist Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  Y. Geng, M. Bush, L. Mosyak, F. Wang, Q. R. Fan
Structural Mechanism Of Ligand Activation In Human Gaba(B) Receptor.
Nature V. 504 254 2013
PubMed-ID: 24305054  |  Reference-DOI: 10.1038/NATURE12725

(-) Compounds

Molecule 1 - GAMMA-AMINOBUTYRIC ACID TYPE B RECEPTOR SUBUNIT 1
    Chains: A
    Engineered: YES
    Expression System: SPODOPTERA FRUGIPERDA
    Expression System Common: FALL ARMYWORM
    Expression System Plasmid: PFBDM
    Expression System Strain: SF9
    Expression System Taxid: 7108
    Expression System Vector Type: PLASMID
    Fragment: EXTRACELLULAR DOMAIN (SEE REMARK 999)
    Gene: GABBR1, GPRC3A
    Organism Common: HUMAN
    Organism Scientific: HOMO SAPIENS
    Organism Taxid: 9606
    Synonym: GABA-B RECEPTOR 1, GABA-B-R1, GABA-BR1, GABABR1, GB1
 
Molecule 2 - GAMMA-AMINOBUTYRIC ACID TYPE B RECEPTOR SUBUNIT 2
    Chains: B
    Engineered: YES
    Expression System: SPODOPTERA FRUGIPERDA
    Expression System Common: FALL ARMYWORM
    Expression System Plasmid: PFBDM
    Expression System Strain: SF9
    Expression System Taxid: 7108
    Expression System Vector Type: PLASMID
    Fragment: EXTRACELLULAR DOMAIN (UNP RESIDUES 42-466)
    Gene: GABBR2, GPR51, GPRC3B
    Organism Common: HUMAN
    Organism Scientific: HOMO SAPIENS
    Organism Taxid: 9606
    Synonym: GABA-B RECEPTOR 2, GABA-B-R2, GABA-BR2, GABABR2, GB2, G- PROTEIN COUPLED RECEPTOR 51, HG20

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (4, 12)

Asymmetric/Biological Unit (4, 12)
No.NameCountTypeFull Name
12BQ1Ligand/Ion2-HYDROXYSACLOFEN
2FUC2Ligand/IonALPHA-L-FUCOSE
3MAN4Ligand/IonALPHA-D-MANNOSE
4NAG5Ligand/IonN-ACETYL-D-GLUCOSAMINE

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETRP A:65 , CYS A:129 , SER A:130 , GLY A:151 , SER A:153 , HIS A:170 , TRP A:278 , GLU A:349 , HOH A:607BINDING SITE FOR RESIDUE 2BQ A 501
2AC2SOFTWAREARG A:319 , ASN A:323 , GLU A:328 , HOH A:602 , ILE B:327 , LYS B:328 , THR B:329 , ILE B:330 , PHE B:409 , GLN B:414BINDING SITE FOR CHAIN A OF SUGAR BOUND TO ASN A 323 RESIDUES 502 TO 507
3AC3SOFTWAREASP A:87 , ILE A:88 , LEU A:362 , ASN A:365 , HOH A:702BINDING SITE FOR MONO-SACCHARIDE NAG A 508 BOUND TO ASN A 365
4AC4SOFTWAREASN B:401 , ASN B:404 , THR B:406 , ASN B:407 , VAL B:416 , HOH B:749 , HOH B:796BINDING SITE FOR CHAIN B OF SUGAR BOUND TO ASN B 404 RESIDUES 501 TO 504

(-) SS Bonds  (5, 5)

Asymmetric/Biological Unit
No.Residues
1A:103 -A:129
2A:259 -A:293
3B:108 -B:135
4B:237 -B:266
5B:265 -B:302

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1Asp A:119 -Pro A:120
2Arg B:95 -Pro B:96

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 4MQF)

(-) 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:406
                                                                                                                                                                                                                                                                                                                                                                                                                                                      
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeeeee.......hhhhhhhhhhhhhhhhhh.......eeeeeeeee...hhhhhhhhhhhhhh......eee..hhhhhhhhhhhhhhhh.eeee....hhhhh.......eee...hhhhhhhhhhhhhhhh...eeeeeee.hhhhhhhhhhhhhhhhhh..eeeeeeee...hhhhhhhhhhh...eeeee.hhhhhhhhhhhhhhh.......eeeee.....hhhhh.......hhhhhhhhhh..eeeee..............hhhhhhhhhhhhh...........hhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhh..eee..eeeee.....ee.eeeeeeee..eeeeeeeee....eeee................ Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4mqf A  48 SERRAVYIGALFPMSGGWPGGQACQPAVEMALEDVNSRRDILPDYELKLIHHDSKCDPGQATKYLYELLYNDPIKIILMPGCSSVSTLVAEAARMWNLIVLSYGSSSPALSNRQRFPTFFRTHPSATLHNPTRVKLFEKWGWKKIATIQQTTEVFTSTLDDLEERVKEAGIEITFRQSFFSDPAVPVKNLKRQDARIIVGLFYETEARKVFCEVYKERLFGKKYVWFLIGWYADNWFKIYDPSINCTVDEMTEAVEGHITTEIVMLNPANTRSISNMTSQEFVEKLTKRLKRHPEETGGFQEAPLAYDAIWALALALNKTSRLEDFNYNNQTITDQIYRAMNSSSFEGVSGHVVFDASGSRMAWTLIEQLQGGSYKKIGYYDSTKDDLSWSKTDKWIGGSPPADDY 461
                                    57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337       347       357       367||     385       395       405       415       425       435       445       455      
                                                                                                                                                                                                                                                                                                                                                          368|                                                                                    
                                                                                                                                                                                                                                                                                                                                                           377                                                                                    


Chain B from PDB  Type:PROTEIN  Length:403
                                                                                                                                                                                                                                                                                                                                                                                                                                                   
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeeee.......hhhhhhhhhhhhhhhhhhhhhh......eeeeeeee...hhhhhhhhhhhhhhhh..eeeeee..hhhhhhhhhhhhhhhh.eeee....hhhhhh......eee...hhhhhhhhhhhhhhhh...eeeeeee.hhhhhhhhhhhhhhhh....eeeeeeee...hhhhhhhhhhh...eeeee.hhhhhhhhhhhhhhh.......eeeee.............hhhhhhhhhh..eeeee..............hhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhh.eeee..eeeeee..eee.eeeeeeee..eeeeeeeee....eeee................ Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4mqf B  53 SPPLSIMGLMPLTKEVAKGSIGRGVLPAVELAIEQIRNESLLRPYFLDLRLYDTECDNAKGLKAFYDAIKYGPNHLMVFGGVCPSVTSIIAESLQGWNLVQLSFAATTPVLADKKKYPYFFRTVPSDNAVNPAILKLLKHYQWKRVGTLTQDVQRFSEVRNDLTGVLYGEDIEISDTESFSNDPCTSVKKLKGNDVRIILGQFDQNMAAKVFCCAYEENMYGSKYQWIIPGWYEPSWWEQSRCLRKNLLAAMEGYIGVDFEPLSSKQIKTISGKTPQQYEREYNNKRSGVGPSKFHGYAYDGIWVIAKTLQRAMETLHASIQDFNYTDHTLGRIILNAMNETNFFGVTGQVVFRNGERMGTIKFTQFQDSREVKVGEYNAVADTLEIINDTIRFQGSEPPKDD 467
                                    62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292|      309       319       329       339       349       359       369       379|      394       404       414       424       434       444       454       464   
                                                                                                                                                                                                                                                                         292|                                                                            379|                                                                                  
                                                                                                                                                                                                                                                                          300                                                                             385
   Legend:   → Mismatch (orange background)
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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  (0, 0)

(no "SCOP Domain" information available for 4MQF)

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (48, 66)

Asymmetric/Biological Unit(hide GO term definitions)

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 Related Entries

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

UniProtKB/Swiss-Prot
        GABR1_HUMAN | Q9UBS5: 4mqe 4mr7 4mr8 4mr9 4mrm 4ms1 4ms3 4ms4 4pas
        GABR2_HUMAN | O75899: 4f11 4f12 4mqe 4mr7 4mr8 4mr9 4mrm 4ms1 4ms3 4ms4 4pas

(-) Related Entries Specified in the PDB File

4mqe 4mr7 4mr8 4mr9 4mrm 4ms1 4ms3 4ms4