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(-) Description

Title :  CALCIUM-CALMODULIN (T79D) COMPLEXED WITH THE CALMODULIN BINDING DOMAIN FROM A SMALL CONDUCTANCE POTASSIUM CHANNEL SK2-A
 
Authors :  M. Zhang, J. M. Pascal, D. E. Logothetis, J. F. Zhang
Date :  17 Jun 14  (Deposition) - 06 Aug 14  (Release) - 03 Sep 14  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.02
Chains :  Asym. Unit :  B,R
Biol. Unit 1:  B,R  (2x)
Biol. Unit 2:  B,R  (1x)
Keywords :  Ion Channel, Ion Transport-Protein Binding Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  M. Zhang, X. Y. Meng, M. Cui, J. M. Pascal, D. E. Logothetis, J. F. Zhang
Selective Phosphorylation Modulates The Pip2 Sensitivity Of The Cam-Sk Channel Complex.
Nat. Chem. Biol. V. 10 753 2014
PubMed-ID: 25108821  |  Reference-DOI: 10.1038/NCHEMBIO.1592

(-) Compounds

Molecule 1 - SMALL CONDUCTANCE CALCIUM-ACTIVATED POTASSIUM CHANNEL PROTEIN 2
    Chains: B
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Fragment: CALMODULIN BINDING DOMAIN (UNP RESIDUES 396-487)
    Gene: KCNN2
    Organism Common: RAT
    Organism Scientific: RATTUS NORVEGICUS
    Organism Taxid: 10116
    Synonym: SK2, SKCA 2, SKCA2, KCA2.2
 
Molecule 2 - CALMODULIN
    Chains: R
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Gene: CALM1, CALM, CAM, CAM1, CALM2, CAM2, CAMB, CALM3, CAM3, CAMC
    Mutation: YES
    Organism Common: RAT
    Organism Scientific: RATTUS NORVEGICUS
    Organism Taxid: 10116
    Synonym: CAM

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit : BR
Biological Unit 1 (2x): BR
Biological Unit 2 (1x): BR

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 3)

Asymmetric Unit (2, 3)
No.NameCountTypeFull Name
1CA2Ligand/IonCALCIUM ION
2SO41Ligand/IonSULFATE ION
Biological Unit 1 (1, 2)
No.NameCountTypeFull Name
1CA-1Ligand/IonCALCIUM ION
2SO42Ligand/IonSULFATE ION
Biological Unit 2 (1, 1)
No.NameCountTypeFull Name
1CA-1Ligand/IonCALCIUM ION
2SO41Ligand/IonSULFATE ION

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
No.NameEvidenceResiduesDescription
1AC1SOFTWARELYS B:451 , HIS B:452 , HOH B:639 , HOH B:640 , HOH B:663BINDING SITE FOR RESIDUE SO4 B 501
2AC2SOFTWAREASP R:20 , ASP R:22 , ASP R:24 , THR R:26 , GLU R:31 , HOH R:1103BINDING SITE FOR RESIDUE CA R 1001
3AC3SOFTWAREASP R:56 , ASP R:58 , ASN R:60 , THR R:62 , GLU R:67 , HOH R:1219BINDING SITE FOR RESIDUE CA R 1002

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 4QNH)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 4QNH)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 4QNH)

(-) 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    
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SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain B from PDB  Type:PROTEIN  Length:87
                                                                                                                       
               SCOP domains --------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....ee....hhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------- Transcript
                 4qnh B 395 GRKLELTKAEDTQLTKRVKNAAANVLRETWLIYKNTKLVKKIDHAKVRKHQRKFLQAIHQLRSVKMEQRKLNDQANTLVDLAKTQLE 489
                                   404|      422       432       442       452       462       472       482       
                                   404|                                                                            
                                    413                                                                            


Chain R from PDB  Type:PROTEIN  Length:146
                                                                                                                                                                                  
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhhhhh.......hhhhhhhhhhhh....hhhhhhhhhhhh........hhhhhhhhhhh...ee.hhhhhhhhhhh.......eeehhhhhhhhhhh....hhhhhhhhhhhhh.....eeehhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4qnh R   2 DQLTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDDDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMMTA 147
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141
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 Classification and Annotation

(-) SCOP Domains  (0, 0)

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

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (70, 72)

Asymmetric Unit(hide GO term definitions)

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 Related Entries

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

UniProtKB/Swiss-Prot
        CALM1_RAT | P0DP29: 1aji 1cm1 1cm4 1deg 1g4y 1k90 1k93 1lvc 1niw 1nkf 1qiv 1qiw 1qx5 1qx7 1sk6 1up5 2hqw 2mgu 2pq3 2ygg 3b32 3bxk 3bxl 3cln 3ek4 3ek7 3ek8 3ekh 3ekj 3evr 3evu 3evv 3ifk 3sg2 3sg3 3sg4 3sg5 3sg6 3sg7 3sjq 3wlc 3wld 4ehq 4g27 4g28 4i2y 4il1 4j9y 4j9z 4oy4 4rjd
        CALM2_RAT | P0DP30: 1aji 1cm1 1cm4 1deg 1g4y 1k90 1k93 1lvc 1niw 1nkf 1qiv 1qiw 1qx5 1qx7 1sk6 1up5 2hqw 2mgu 2pq3 2ygg 3b32 3bxk 3bxl 3cln 3evr 3evu 3ifk 3sjq 4ehq 4g27 4g28 4i2y 4il1 4j9y 4j9z 4oy4 4rjd
        CALM3_RAT | P0DP31: 1aji 1cm1 1cm4 1deg 1g4y 1k90 1k93 1lvc 1niw 1nkf 1qiv 1qiw 1qx5 1qx7 1sk6 1up5 2hqw 2mgu 2pq3 2ygg 3b32 3bxk 3bxl 3cln 3evr 3evu 3ifk 3sjq 4ehq 4g27 4g28 4i2y 4il1 4j9y 4j9z 4oy4 4rjd
        KCNN2_RAT | P70604: 1g4y 1kkd 1qx7 2pnv 3sjq 4g27 4g28 4j9y 4j9z

(-) Related Entries Specified in the PDB File

4j9y WILD TYPE AND MUTANT