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(-) Description

Title :  CRYSTAL STRUCTURE OF SEMET-SUBSTITUTED APO-MMACHC (1-244), A HUMAN B12 PROCESSING ENZYME
 
Authors :  M. Koutmos, C. Gherasim, J. L. Smith, R. Banerjee
Date :  06 Jun 11  (Deposition) - 22 Jun 11  (Release) - 25 Apr 12  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.71
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Keywords :  Mmachc, Cblc, Cobalamin, Flavin, Glutathione, Flavin Reductase, Oxidoreductase, Maturase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  M. Koutmos, C. Gherasim, J. L. Smith, R. Banerjee
Structural Basis Of Multifunctionality In A Vitamin B12-Processing Enzyme.
J. Biol. Chem. V. 286 29780 2011
PubMed-ID: 21697092  |  Reference-DOI: 10.1074/JBC.M111.261370

(-) Compounds

Molecule 1 - METHYLMALONIC ACIDURIA AND HOMOCYSTINURIA TYPE C PROTEIN
    ChainsA, B
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET28B(+)
    Expression System StrainBL21
    Expression System Taxid562
    Expression System Vector TypePLASMID
    Fragment12 BINDING DOMAIN, RESIDUES 1-244
    GeneMMACHC
    MutationYES
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit AB
Biological Unit 1 (1x)A 
Biological Unit 2 (1x) B

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 13)

Asymmetric Unit (1, 13)
No.NameCountTypeFull Name
1MSE13Mod. Amino AcidSELENOMETHIONINE
Biological Unit 1 (1, 7)
No.NameCountTypeFull Name
1MSE7Mod. Amino AcidSELENOMETHIONINE
Biological Unit 2 (1, 6)
No.NameCountTypeFull Name
1MSE6Mod. Amino AcidSELENOMETHIONINE

(-) Sites  (0, 0)

(no "Site" information available for 3SBY)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3SBY)

(-) Cis Peptide Bonds  (2, 2)

Asymmetric Unit
No.Residues
1Arg A:112 -Pro A:113
2Arg B:112 -Pro B:113

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (14, 28)

Asymmetric Unit (14, 28)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
01UniProtVAR_024770Q27RMMAC_HUMANDisease (MMAHCC)546099787A/BQ27R
02UniProtVAR_024771L116PMMAC_HUMANDisease (MMAHCC)121918240A/BL116P
03UniProtVAR_024772H122RMMAC_HUMANDisease (MMAHCC)  ---A/BH122R
04UniProtVAR_024773Y130HMMAC_HUMANDisease (MMAHCC)372670428A/BY130H
05UniProtVAR_024774G147AMMAC_HUMANDisease (MMAHCC)140522266A/BG147A
06UniProtVAR_024775G147DMMAC_HUMANDisease (MMAHCC)140522266A/BG147D
07UniProtVAR_024776G156DMMAC_HUMANDisease (MMAHCC)  ---A/BG156D
08UniProtVAR_024777W157CMMAC_HUMANDisease (MMAHCC)  ---A/BW157C
09UniProtVAR_024778R161GMMAC_HUMANDisease (MMAHCC)  ---A/BR161G
10UniProtVAR_024779R161QMMAC_HUMANDisease (MMAHCC)121918243A/BR161Q
11UniProtVAR_024780R189SMMAC_HUMANDisease (MMAHCC)200895671A/BR189S
12UniProtVAR_024781L193PMMAC_HUMANDisease (MMAHCC)  ---A/BL193P
13UniProtVAR_024782R206PMMAC_HUMANDisease (MMAHCC)  ---A/BR206P
14UniProtVAR_024783R206WMMAC_HUMANDisease (MMAHCC)  ---A/BR206W

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 1 (14, 14)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
01UniProtVAR_024770Q27RMMAC_HUMANDisease (MMAHCC)546099787AQ27R
02UniProtVAR_024771L116PMMAC_HUMANDisease (MMAHCC)121918240AL116P
03UniProtVAR_024772H122RMMAC_HUMANDisease (MMAHCC)  ---AH122R
04UniProtVAR_024773Y130HMMAC_HUMANDisease (MMAHCC)372670428AY130H
05UniProtVAR_024774G147AMMAC_HUMANDisease (MMAHCC)140522266AG147A
06UniProtVAR_024775G147DMMAC_HUMANDisease (MMAHCC)140522266AG147D
07UniProtVAR_024776G156DMMAC_HUMANDisease (MMAHCC)  ---AG156D
08UniProtVAR_024777W157CMMAC_HUMANDisease (MMAHCC)  ---AW157C
09UniProtVAR_024778R161GMMAC_HUMANDisease (MMAHCC)  ---AR161G
10UniProtVAR_024779R161QMMAC_HUMANDisease (MMAHCC)121918243AR161Q
11UniProtVAR_024780R189SMMAC_HUMANDisease (MMAHCC)200895671AR189S
12UniProtVAR_024781L193PMMAC_HUMANDisease (MMAHCC)  ---AL193P
13UniProtVAR_024782R206PMMAC_HUMANDisease (MMAHCC)  ---AR206P
14UniProtVAR_024783R206WMMAC_HUMANDisease (MMAHCC)  ---AR206W

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 2 (14, 14)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
01UniProtVAR_024770Q27RMMAC_HUMANDisease (MMAHCC)546099787BQ27R
02UniProtVAR_024771L116PMMAC_HUMANDisease (MMAHCC)121918240BL116P
03UniProtVAR_024772H122RMMAC_HUMANDisease (MMAHCC)  ---BH122R
04UniProtVAR_024773Y130HMMAC_HUMANDisease (MMAHCC)372670428BY130H
05UniProtVAR_024774G147AMMAC_HUMANDisease (MMAHCC)140522266BG147A
06UniProtVAR_024775G147DMMAC_HUMANDisease (MMAHCC)140522266BG147D
07UniProtVAR_024776G156DMMAC_HUMANDisease (MMAHCC)  ---BG156D
08UniProtVAR_024777W157CMMAC_HUMANDisease (MMAHCC)  ---BW157C
09UniProtVAR_024778R161GMMAC_HUMANDisease (MMAHCC)  ---BR161G
10UniProtVAR_024779R161QMMAC_HUMANDisease (MMAHCC)121918243BR161Q
11UniProtVAR_024780R189SMMAC_HUMANDisease (MMAHCC)200895671BR189S
12UniProtVAR_024781L193PMMAC_HUMANDisease (MMAHCC)  ---BL193P
13UniProtVAR_024782R206PMMAC_HUMANDisease (MMAHCC)  ---BR206P
14UniProtVAR_024783R206WMMAC_HUMANDisease (MMAHCC)  ---BR206W

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 3SBY)

(-) 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:218
 aligned with MMAC_HUMAN | Q9Y4U1 from UniProtKB/Swiss-Prot  Length:282

    Alignment length:229
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220         
           MMAC_HUMAN     1 MEPKVAELKQKIEDTLCPFGFEVYPFQVAWYNELLPPAFHLPLPGPTLAFLVLSTPAMFDRALKPFLQSCHLRMLTDPVDQCVAYHLGRVRESLPELQIEIIADYEVHPNRRPKILAQTAAHVAGAAYYYQRQDVEADPWGNQRISGVCIHPRFGGWFAIRGVVLLPGIEVPDLPPRKPHDCVPTRADRIALLEGFNFHWRDWTYRDAVTPQERYSEEQKAYFSTPPAQ 229
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhh...eeeeeeehhhhhhhhhhhhh......eeeeeeee..hhhhhh..............hhhhhhhhhhhhhhhhhh.....eeee.hhh........hhhhhhhhh...eee....-----------..eee........eeeeeeeeeeee..............hhhhhhhhhhhhhh.....hhhhh.......hhhhhhhhh..... Sec.struct. author
             SAPs(SNPs) (1) --------------------------R----------------------------------------------------------------------------------------P-----R-------H----------------A--------DC---G---------------------------S---P------------P----------------------- SAPs(SNPs) (1)
             SAPs(SNPs) (2) --------------------------------------------------------------------------------------------------------------------------------------------------D-------------Q--------------------------------------------W----------------------- SAPs(SNPs) (2)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3sby A   1 mEPKVAELKQKIEDTLCPFGFEVYPFQVAWYNELLPPAFHLPLPGPTmAFLVLSTPAmFDRALKPFLQSCHLRmLTDPVDQCmAYHLGRVRESLPELQIEIIADYEmHPNRRPKILAQTAAHVAGAAYYYQRQD-----------SGVCIHPRFGGWFAIRGVmLLPGIEVPDLPPRKPHDCVPTRADRIALLEGFNFHWRDWTYRDAVTPQERYSEEQKAYFSTPPAQ 229
                            |       10        20        30        40       |50       |60        70   |    80  |     90       100      |110       120       130   |     -     | 150       160   |   170       180       190       200       210       220         
                            |                                             48-MSE    58-MSE          74-MSE   83-MSE                 107-MSE                    134         146               164-MSE                                                             
                            1-MSE                                                                                                                                                                                                                                

Chain B from PDB  Type:PROTEIN  Length:228
 aligned with MMAC_HUMAN | Q9Y4U1 from UniProtKB/Swiss-Prot  Length:282

    Alignment length:228
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224        
           MMAC_HUMAN     5 VAELKQKIEDTLCPFGFEVYPFQVAWYNELLPPAFHLPLPGPTLAFLVLSTPAMFDRALKPFLQSCHLRMLTDPVDQCVAYHLGRVRESLPELQIEIIADYEVHPNRRPKILAQTAAHVAGAAYYYQRQDVEADPWGNQRISGVCIHPRFGGWFAIRGVVLLPGIEVPDLPPRKPHDCVPTRADRIALLEGFNFHWRDWTYRDAVTPQERYSEEQKAYFSTPPAQRLA 232
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..hhhhhhhhhhh...eeeeeeehhhhhh.............eeeeeeee..hhhhhhhhhhh.........hhhhhhhhhhhhhhhh.......eeee.hhh........hhhhhhhhh...eeehhhhh............eee........eeeeeeeeeeee..............hhhhhhhhhhhhhhh..hhhhhhh.......hhhhhhhhhhhhhhh.. Sec.struct. author
             SAPs(SNPs) (1) ----------------------R----------------------------------------------------------------------------------------P-----R-------H----------------A--------DC---G---------------------------S---P------------P-------------------------- SAPs(SNPs) (1)
             SAPs(SNPs) (2) ----------------------------------------------------------------------------------------------------------------------------------------------D-------------Q--------------------------------------------W-------------------------- SAPs(SNPs) (2)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 3sby B   5 VAELKQKIEDTLCPFGFEVYPFQVAWYNELLPPAFHLPLPGPTmAFLVLSTPAmFDRALKPFLQSCHLRmLTDPVDQCmAYHLGRVRESLPELQIEIIADYEmHPNRRPKILAQTAAHVAGAAYYYQRQDVEADPWGNQRISGVCIHPRFGGWFAIRGVmLLPGIEVPDLPPRKPHDCVPTRADRIALLEGFNFHWRDWTYRDAVTPQERYSEEQKAYFSTPPAQRLA 232
                                    14        24        34        44   |    54   |    64        74        84        94       104  |    114       124       134       144       154       164       174       184       194       204       214       224        
                                                                      48-MSE    58-MSE          74-MSE   83-MSE                 107-MSE                                                  164-MSE                                                                

   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 3SBY)

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3SBY)

(-) Gene Ontology  (10, 10)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (MMAC_HUMAN | Q9Y4U1)
molecular function
    GO:0031419    cobalamin binding    Interacting selectively and non-covalently with cobalamin (vitamin B12), a water-soluble vitamin characterized by possession of a corrin nucleus containing a cobalt atom.
    GO:0033787    cyanocobalamin reductase (cyanide-eliminating) activity    Catalysis of the reaction: cob(I)alamin + hydrogen cyanide + NADP(+) = cyanocob(III)alamin + H(+) + NADPH.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
    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).
biological process
    GO:0009236    cobalamin biosynthetic process    The chemical reactions and pathways resulting in the formation of cobalamin (vitamin B12), a water-soluble vitamin characterized by possession of a corrin nucleus containing a cobalt atom.
    GO:0009235    cobalamin metabolic process    The chemical reactions and pathways involving cobalamin (vitamin B12), a water-soluble vitamin characterized by possession of a corrin nucleus containing a cobalt atom.
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    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:0005739    mitochondrion    A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.

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 Related Entries

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

UniProtKB/Swiss-Prot
        MMAC_HUMAN | Q9Y4U13sbz 3sc0 3som 5uos

(-) Related Entries Specified in the PDB File

3sbz 3sc0