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(-) Description

Title :  CRYSTAL STRUCTURE OF HUMAN CRFR2 ALPHA EXTRACELLULAR DOMAIN IN COMPLEX WITH UROCORTIN 3
 
Authors :  K. Pal, K. Swaminathan, A. A. Pioszak, H. E. Xu
Date :  28 May 10  (Deposition) - 20 Oct 10  (Release) - 20 Oct 10  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.50
Chains :  Asym. Unit :  A,B,C
Biol. Unit 1:  A,B,C  (2x)
Biol. Unit 2:  A,B,C  (1x)
Biol. Unit 3:  A  (1x)
Biol. Unit 4:  B  (1x)
Biol. Unit 5:  C  (1x)
Keywords :  Class B-Gpcr, Extracellular Domain, Crfr2 Alpha Extracellular Domain, Neuropeptide, Selectivity, Membrane Protein, Hormone (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  K. Pal, K. Swaminathan, A. A. Pioszak, H. E. Xu
Structural Basis Of Ligand Selectivity In Human Crfr1 And Crfr2 Alpha Extracellular Domain
To Be Published
PubMed: search

(-) Compounds

Molecule 1 - MALTOSE BINDING PROTEIN-CRFR2 ALPHA
    ChainsA, B
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    Expression System VectorPET-DUET1
    FragmentEXTRACELLULAR DOMAIN
    GeneCRFR2 ALPHA
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
 
Molecule 2 - UROCORTIN-3
    ChainsC
    EngineeredYES
    FragmentUNP RESIDUES 142-157
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymUROCORTIN III, UCN III, STRESSCOPIN
    SyntheticYES

 Structural Features

(-) Chains, Units

  123
Asymmetric Unit ABC
Biological Unit 1 (2x)ABC
Biological Unit 2 (1x)ABC
Biological Unit 3 (1x)A  
Biological Unit 4 (1x) B 
Biological Unit 5 (1x)  C

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 4)

Asymmetric Unit (3, 4)
No.NameCountTypeFull Name
1GOL1Ligand/IonGLYCEROL
2MAL2Ligand/IonMALTOSE
3NH21Mod. Amino AcidAMINO GROUP
Biological Unit 1 (3, 8)
No.NameCountTypeFull Name
1GOL2Ligand/IonGLYCEROL
2MAL4Ligand/IonMALTOSE
3NH22Mod. Amino AcidAMINO GROUP
Biological Unit 2 (3, 4)
No.NameCountTypeFull Name
1GOL1Ligand/IonGLYCEROL
2MAL2Ligand/IonMALTOSE
3NH21Mod. Amino AcidAMINO GROUP
Biological Unit 3 (1, 1)
No.NameCountTypeFull Name
1GOL-1Ligand/IonGLYCEROL
2MAL1Ligand/IonMALTOSE
3NH2-1Mod. Amino AcidAMINO GROUP
Biological Unit 4 (2, 2)
No.NameCountTypeFull Name
1GOL1Ligand/IonGLYCEROL
2MAL1Ligand/IonMALTOSE
3NH2-1Mod. Amino AcidAMINO GROUP
Biological Unit 5 (1, 1)
No.NameCountTypeFull Name
1GOL-1Ligand/IonGLYCEROL
2MAL-1Ligand/IonMALTOSE
3NH21Mod. Amino AcidAMINO GROUP

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETYR A:-215 , ASP A:-305 , TRP A:-308 , TRP A:-30 , ARG A:-304 , PRO A:-216 , ARG A:-26 , GLU A:-217 , ALA A:-307 , ASP A:-356 , LYS A:-355 , ASN A:-358 , GLU A:-259 , HOH A:140BINDING SITE FOR RESIDUE MAL A 111
2AC2SOFTWARETYR B:-215 , ASP B:-305 , ARG B:-304 , TRP B:-30 , GLU B:-217 , TRP B:-308 , ALA B:-307 , ARG B:-26 , PRO B:-216 , LYS B:-355 , ASP B:-356 , GLU B:-259BINDING SITE FOR RESIDUE MAL B 111
3AC3SOFTWAREGLN A:-35 , PRO B:36 , TYR B:37 , SER B:38 , TYR B:39 , ASN B:41 , HOH B:143BINDING SITE FOR RESIDUE GOL B 3968

(-) SS Bonds  (6, 6)

Asymmetric Unit
No.Residues
1A:14 -A:50
2A:40 -A:83
3A:64 -A:98
4B:14 -B:50
5B:40 -B:83
6B:64 -B:98

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 3N93)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3N93)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3N93)

(-) Exons   (1, 1)

Asymmetric Unit (1, 1)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1ENST000003804331ENSE00001484959chr10:5406972-5407193222UCN3_HUMAN-00--
1.2ENST000003804332ENSE00001484954chr10:5415678-5416169492UCN3_HUMAN1-1631631C:26-4217

(-) 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:471
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......eeee.....hhhhhhhhhhhhhhhhh..eeee...hhhhhhhhhhh......eeeee..hhhhhhhhh.......hhhhhh..hhhhhhh.ee..ee..eeeeee..eeeee.........hhhhhhhhhhhhhh...eee.....hhhhhhhhhhhh..eeeeee..eeeeeeee..hhhhhhhhhhhhhhhhh.......hhhhhhhhhhh..eeeeeehhhhhhhhhhh...eeee............eeeeeeeee.....hhhhhhhhhhhh..hhhhhhhhhhhh...ee.hhhhhhhhh.hhhhhhhhhhhhhhee.....hhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..........ee..ee.....ee..ee...eeeee...ee..ee.....eeeee................... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                3n93 A -369 KIEEGKLVIWINGDKGYNGLAEVGKKFEKDTGIKVTVEHPDKLEEKFPQVAATGDGPDIIFWAHDRFGGYAQSGLLAEITPDKAFQDKLYPFTWDAVRYNGKLIAYPIAVEALSLIYNKDLLPNPPKTWEEIPALDKELKAKGKSALMFNLQEPYFTWPLIAADGGYAFKYENGKYDIKDVGVDNAGAKAGLTFLVDLIKNKHMNADTDYSIAEAAFNKGETAMTINGPWAWSNIDTSKVNYGVTVLPTFKGQPSKPFVGVLSAGINAASPNKELAKEFLENYLLTDEGLEAVNKDKPLGAVALKSYEEELAKDPRIAATMENAQKGEIMPNIPQMSAFWYAVRTAVINAASGRQTVDEALKDAQTNAAAEFAALLHSLLEANCSLALAEELLLDGWGPPLDPEGPYSYCNTTLDQIGTCWPRSAAGALVERPCPEYFNGVKYNTTRNAYRECLENGTWASKINYSQCEPI  101
                                  -360      -350      -340      -330      -320      -310      -300      -290      -280      -270      -260      -250      -240      -230      -220      -210      -200      -190      -180      -170      -160      -150      -140      -130      -120      -110      -100       -90       -80       -70       -60       -50       -40       -30       -20       -10         0        10        20        30        40        50        60        70        80        90       100 

Chain B from PDB  Type:PROTEIN  Length:464
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......eeee.....hhhhhhhhhhhhhhhhh..eeee...hhhhhhhhhhhh.....eeeee..hhhhhhhh........hhhhhh..hhhhhhhhee..ee.eeeeeee..eeeee.........hhhhhhhhhhhhhhh..eee.....hhhhhhhhhhhh..eeeeee..eeeeeeee..hhhhhhhhhhhhhhhhh.......hhhhhhhhhhh..eeeeeehhhhhhhhhhh...eeee...ee..ee...eeeeeeeee.....hhhhhhhhhhhh..hhhhhhhhhh.....ee.hhhhhhhhh.hhhhhhhhhhhhhhee.....hhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...ee..ee.....ee..ee...eeeee...ee..ee.....eeeee...................... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                3n93 B -369 KIEEGKLVIWINGDKGYNGLAEVGKKFEKDTGIKVTVEHPDKLEEKFPQVAATGDGPDIIFWAHDRFGGYAQSGLLAEITPDKAFQDKLYPFTWDAVRYNGKLIAYPIAVEALSLIYNKDLLPNPPKTWEEIPALDKELKAKGKSALMFNLQEPYFTWPLIAADGGYAFKYENGKYDIKDVGVDNAGAKAGLTFLVDLIKNKHMNADTDYSIAEAAFNKGETAMTINGPWAWSNIDTSKVNYGVTVLPTFKGQPSKPFVGVLSAGINAASPNKELAKEFLENYLLTDEGLEAVNKDKPLGAVALKSYEEELAKDPRIAATMENAQKGEIMPNIPQMSAFWYAVRTAVINAASGRQTVDEALKDAQTNAAAEFAALLHSLLEANCSLALAEELLLDPYSYCNTTLDQIGTCWPRSAAGALVERPCPEYFNGVKYNTTRNAYRECLENGTWASKINYSQCEPILDD  104
                                  -360      -350      -340      -330      -320      -310      -300      -290      -280      -270      -260      -250      -240      -230      -220      -210      -200      -190      -180      -170      -160      -150      -140      -130      -120      -110      -100       -90       -80       -70       -60       -50       -40       -30       -20       -10         0        10        20    ||  40        50        60        70        80        90       100    
                                                                                                                                                                                                                                                                                                                                                                                                                                     25|                                                                    
                                                                                                                                                                                                                                                                                                                                                                                                                                      36                                                                    

Chain C from PDB  Type:PROTEIN  Length:17
 aligned with UCN3_HUMAN | Q969E3 from UniProtKB/Swiss-Prot  Length:161

    Alignment length:17
                                   151       
          UCN3_HUMAN    142 NLRAQAAANAHLMAQIG  158
               SCOP domains ----------------- SCOP domains
               CATH domains ----------------- CATH domains
               Pfam domains UCN2-3n93C01    - Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ----------------- SAPs(SNPs)
                    PROSITE ----------------- PROSITE
               Transcript 1 Exon 1.2          Transcript 1
                3n93 C   26 NLRAQAAANAHLMAQIx   42
                                    35      |
                                           42-NH2

   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 3N93)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3N93)

(-) Pfam Domains  (1, 1)

Asymmetric Unit

(-) Gene Ontology  (66, 66)

Asymmetric Unit(hide GO term definitions)
Chain C   (UCN3_HUMAN | Q969E3)
molecular function
    GO:0001664    G-protein coupled receptor binding    Interacting selectively and non-covalently with a G-protein coupled receptor.
    GO:0051431    corticotropin-releasing hormone receptor 2 binding    Interacting selectively and non-covalently with the corticotropin-releasing hormone receptor type 2 (CRHR2). The CRHR2 has several splice variants that are located in sub-cortical areas of the brain and in the periphery.
    GO:0005179    hormone activity    The action characteristic of a hormone, any substance formed in very small amounts in one specialized organ or group of cells and carried (sometimes in the bloodstream) to another organ or group of cells in the same organism, upon which it has a specific regulatory action. The term was originally applied to agents with a stimulatory physiological action in vertebrate animals (as opposed to a chalone, which has a depressant action). Usage is now extended to regulatory compounds in lower animals and plants, and to synthetic substances having comparable effects; all bind receptors and trigger some biological process.
biological process
    GO:0007189    adenylate cyclase-activating G-protein coupled receptor signaling pathway    The series of molecular signals generated as a consequence of a G-protein coupled receptor binding to its physiological ligand, where the pathway proceeds through activation of adenylyl cyclase activity and a subsequent increase in the concentration of cyclic AMP (cAMP).
    GO:0031669    cellular response to nutrient levels    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus reflecting the presence, absence, or concentration of nutrients.
    GO:0007586    digestion    The whole of the physical, chemical, and biochemical processes carried out by multicellular organisms to break down ingested nutrients into components that may be easily absorbed and directed into metabolism.
    GO:0006950    response to stress    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a disturbance in organismal or cellular homeostasis, usually, but not necessarily, exogenous (e.g. temperature, humidity, ionizing radiation).
cellular component
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
    GO:0005615    extracellular space    That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.

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 Related Entries

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

UniProtKB/Swiss-Prot
        CRFR2_HUMAN | Q133243n95 3n96
        UCN3_HUMAN | Q969E32rmh

(-) Related Entries Specified in the PDB File

3n95 3n96