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(-) Description

Title :  REACTIVITY MODULATION OF HUMAN BRANCHED-CHAIN ALPHA-KETOACID DEHYDROGENASE BY AN INTERNAL MOLECULAR SWITCH
 
Authors :  M. Machius, R. M. Wynn, J. L. Chuang, D. R. Tomchick, C. A. Brautigam, D.
Date :  30 Nov 04  (Deposition) - 16 Feb 06  (Release) - 21 Dec 16  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.80
Chains :  Asym. Unit :  A,B,C
Biol. Unit 1:  A,B,C  (2x)
Keywords :  Oxidoreductase, Oxidative Decarboxylation, Maple Syrup Urine Disease, Thiamine Diphosphate, Phosphorylation, Conformational Switch (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  M. Machius, R. M. Wynn, J. L. Chuang, J. Li, R. Kluger, D. Yu, D. R. Tomchick, C. A. Brautigam, D. T. Chuang
A Versatile Conformational Switch Regulates Reactivity In Human Branched-Chain Alpha-Ketoacid Dehydrogenase.
Structure V. 14 287 2006
PubMed-ID: 16472748  |  Reference-DOI: 10.1016/J.STR.2005.10.009
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - 2-OXOISOVALERATE DEHYDROGENASE ALPHA SUBUNIT
    ChainsA
    EC Number1.2.4.4
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPTRC-ALPHA-BETAHIS
    Expression System StrainBL21
    Expression System Taxid511693
    Expression System VectorPTRCHISB (INVITROGEN)
    FragmentRESIDUES 46-445
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymBRANCHED-CHAIN ALPHA-KETO ACID DEHYDROGENASE E1 COMPONENT ALPHA CHAIN, BCKDH E1-ALPHA, BCKDE1A
 
Molecule 2 - 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT
    ChainsB
    EC Number1.2.4.4
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPTRC-ALPHA-BETAHIS
    Expression System StrainBL21
    Expression System Taxid511693
    Expression System VectorPTRCHISB (INVITROGEN)
    FragmentRESIDUES 51-392
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymBRANCHED-CHAIN ALPHA-KETO ACID DEHYDROGENASE E1 COMPONENT BETA CHAIN, BCKDH E1-BETA
 
Molecule 3 - PEPTIDE ALA-TYR-ARG
    ChainsC
    Organism ScientificSYNTHETIC CONSTRUCT
    Organism Taxid32630
    SyntheticYES

 Structural Features

(-) Chains, Units

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

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (5, 8)

Asymmetric Unit (5, 8)
No.NameCountTypeFull Name
1CL2Ligand/IonCHLORIDE ION
2GOL2Ligand/IonGLYCEROL
3K2Ligand/IonPOTASSIUM ION
4MN1Ligand/IonMANGANESE (II) ION
5THY1Ligand/IonC2-1-HYDROXY-2-METHYL-BUTYL-THIAMINDIPHOSPHATE
Biological Unit 1 (2, 6)
No.NameCountTypeFull Name
1CL-1Ligand/IonCHLORIDE ION
2GOL4Ligand/IonGLYCEROL
3K-1Ligand/IonPOTASSIUM ION
4MN-1Ligand/IonMANGANESE (II) ION
5THY2Ligand/IonC2-1-HYDROXY-2-METHYL-BUTYL-THIAMINDIPHOSPHATE

(-) Sites  (8, 8)

Asymmetric Unit (8, 8)
No.NameEvidenceResiduesDescription
1AC1SOFTWARESER A:161 , PRO A:163 , THR A:166 , GLN A:167 , HOH A:2130BINDING SITE FOR RESIDUE K A1402
2AC2SOFTWAREGLU A:193 , ASN A:222 , TYR A:224 , THY A:601 , HOH A:2381BINDING SITE FOR RESIDUE MN A1403
3AC3SOFTWAREHOH A:2367 , TRP B:330BINDING SITE FOR RESIDUE CL A1404
4AC4SOFTWAREPHE B:54BINDING SITE FOR RESIDUE CL B1343
5AC5SOFTWAREGLY B:128 , LEU B:130 , THR B:131 , CYS B:178 , ASP B:181 , ASN B:183 , HOH B:2175BINDING SITE FOR RESIDUE K B1346
6AC6SOFTWAREPHE A:85 , GLN A:112 , TYR A:113 , ARG A:114 , SER A:162 , LEU A:164 , GLY A:192 , GLU A:193 , GLY A:194 , ALA A:195 , GLU A:198 , ARG A:220 , ASN A:222 , TYR A:224 , ALA A:225 , ILE A:226 , HIS A:291 , MN A:1403 , HOH A:2272 , HOH A:2381 , GLU B:46 , LEU B:74 , GLU B:76 , GLN B:98 , TYR B:102 , HIS B:146BINDING SITE FOR RESIDUE THY A 601
7AC7SOFTWAREGLN A:374 , TRP B:260 , THR B:284 , GLU B:290 , THR B:294 , ARG B:309 , HOH B:2306BINDING SITE FOR RESIDUE GOL B1344
8AC8SOFTWAREARG A:185 , VAL B:88 , PHE B:125 , HOH B:2101 , HOH B:2143 , HOH B:2307BINDING SITE FOR RESIDUE GOL B1345

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2BEV)

(-) Cis Peptide Bonds  (1, 1)

Asymmetric Unit
No.Residues
1Ile B:258 -Pro B:259

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (17, 17)

Asymmetric Unit (17, 17)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
01UniProtVAR_034361T151MODBA_HUMANPolymorphism34442879AT106M
02UniProtVAR_004968R159WODBA_HUMANDisease (MSUD1A)769688327AR114W
03UniProtVAR_068348R170HODBB_HUMANDisease (MSUD1B)371518124BR120H
04UniProtVAR_024851R183PODBB_HUMANDisease (MSUD1B)28934895BR133P
05UniProtVAR_004969Q190KODBA_HUMANDisease (MSUD1A)  ---AQ145K
06UniProtVAR_004974H206RODBB_HUMANDisease (MSUD1B)  ---BH156R
07UniProtVAR_069748T211MODBA_HUMANDisease (MSUD1A)398123503AT166M
08UniProtVAR_069749A220VODBA_HUMANDisease (MSUD1A)375785084AA175V
09UniProtVAR_004970A253TODBA_HUMANDisease (MSUD1A)199599175AA208T
10UniProtVAR_024852G278SODBB_HUMANDisease (MSUD1B)386834233BG228S
11UniProtVAR_015101G290RODBA_HUMANDisease (MSUD1A)137852871AG245R
12UniProtVAR_004971I326TODBA_HUMANDisease (MSUD1A)  ---AI281T
13UniProtVAR_068349Q346RODBB_HUMANDisease (MSUD1B)  ---BQ296R
14UniProtVAR_069750R346CODBA_HUMANDisease (MSUD1A)182923857AR301C
15UniProtVAR_015102F409CODBA_HUMANDisease (MSUD1A)137852872AF364C
16UniProtVAR_004972Y413CODBA_HUMANDisease (MSUD1A)  ---AY368C
17UniProtVAR_004973Y438NODBA_HUMANDisease (MSUD1A)137852870AY393N

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 1 (17, 34)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
01UniProtVAR_034361T151MODBA_HUMANPolymorphism34442879AT106M
02UniProtVAR_004968R159WODBA_HUMANDisease (MSUD1A)769688327AR114W
03UniProtVAR_068348R170HODBB_HUMANDisease (MSUD1B)371518124BR120H
04UniProtVAR_024851R183PODBB_HUMANDisease (MSUD1B)28934895BR133P
05UniProtVAR_004969Q190KODBA_HUMANDisease (MSUD1A)  ---AQ145K
06UniProtVAR_004974H206RODBB_HUMANDisease (MSUD1B)  ---BH156R
07UniProtVAR_069748T211MODBA_HUMANDisease (MSUD1A)398123503AT166M
08UniProtVAR_069749A220VODBA_HUMANDisease (MSUD1A)375785084AA175V
09UniProtVAR_004970A253TODBA_HUMANDisease (MSUD1A)199599175AA208T
10UniProtVAR_024852G278SODBB_HUMANDisease (MSUD1B)386834233BG228S
11UniProtVAR_015101G290RODBA_HUMANDisease (MSUD1A)137852871AG245R
12UniProtVAR_004971I326TODBA_HUMANDisease (MSUD1A)  ---AI281T
13UniProtVAR_068349Q346RODBB_HUMANDisease (MSUD1B)  ---BQ296R
14UniProtVAR_069750R346CODBA_HUMANDisease (MSUD1A)182923857AR301C
15UniProtVAR_015102F409CODBA_HUMANDisease (MSUD1A)137852872AF364C
16UniProtVAR_004972Y413CODBA_HUMANDisease (MSUD1A)  ---AY368C
17UniProtVAR_004973Y438NODBA_HUMANDisease (MSUD1A)137852870AY393N

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

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2BEV)

(-) Exons   (18, 18)

Asymmetric Unit (18, 18)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1aENST000002699801aENSE00001136590chr19:41903704-41903840137ODBA_HUMAN1-36360--
1.2aENST000002699802aENSE00000951971chr19:41916542-41916721180ODBA_HUMAN37-96601A:6-5146
1.3ENST000002699803ENSE00001243623chr19:41916828-4191691487ODBA_HUMAN97-125291A:52-8029
1.4ENST000002699804ENSE00000951973chr19:41919954-41920062109ODBA_HUMAN126-162371A:81-11737
1.5ENST000002699805ENSE00001164733chr19:41925040-41925201162ODBA_HUMAN162-216551A:117-17155
1.6ENST000002699806ENSE00000951975chr19:41928069-41928275207ODBA_HUMAN216-285701A:171-24070
1.7bENST000002699807bENSE00000951976chr19:41928534-41928675142ODBA_HUMAN285-332481A:240-28748
1.8bENST000002699808bENSE00000951977chr19:41928903-41929074172ODBA_HUMAN332-389581A:287-344 (gaps)58
1.9bENST000002699809bENSE00001196086chr19:41930343-41930909567ODBA_HUMAN390-445561A:345-40056

2.1ENST000003564891ENSE00001140741chr6:80816364-80816606243ODBB_HUMAN1-66661B:2-16 (gaps)15
2.3ENST000003564893ENSE00002147378chr6:80837264-8083734178ODBB_HUMAN66-92271B:16-4227
2.4ENST000003564894ENSE00002146276chr6:80838878-8083894669ODBB_HUMAN92-115241B:42-6524
2.6ENST000003564896ENSE00000798033chr6:80877395-80877528134ODBB_HUMAN115-159451B:65-10945
2.7ENST000003564897ENSE00000798034chr6:80878592-80878747156ODBB_HUMAN160-211521B:110-16152
2.9ENST000003564899ENSE00000798035chr6:80880999-80881107109ODBB_HUMAN212-248371B:162-19837
2.10ENST0000035648910ENSE00000798036chr6:80910651-8091074898ODBB_HUMAN248-280331B:198-23033
2.11ENST0000035648911ENSE00002191509chr6:80912819-80912929111ODBB_HUMAN281-317371B:231-26737
2.13bENST0000035648913bENSE00000759469chr6:80982852-8098293887ODBB_HUMAN318-346291B:268-29629
2.14bENST0000035648914bENSE00001409003chr6:81053381-81053529149ODBB_HUMAN347-392461B:297-34246
2.14dENST0000035648914dENSE00001417653chr6:81055692-81055971280ODBB_HUMAN-00--

(-) 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:390
 aligned with ODBA_HUMAN | P12694 from UniProtKB/Swiss-Prot  Length:445

    Alignment length:395
                                    60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440     
           ODBA_HUMAN    51 KPQFPGASAEFIDKLEFIQPNVISGIPIYRVMDRQGQIINPSEDPHLPKEKVLKLYKSMTLLNTMDRILYESQRQGRISFYMTNYGEEGTHVGSAAALDNTDLVFGQYREAGVLMYRDYPLELFMAQCYGNISDLGKGRQMPVHYGCKERHFVTISSPLATQIPQAVGAAYAAKRANANRVVICYFGEGAASEGDAHAGFNFAATLECPIIFFCRNNGYAISTPTSEQYRGDGIAARGPGYGIMSIRVDGNDVFAVYNATKEARRRAVAENQPFLIEAMTYRIGHHSTSDDSSAYRSVDEVNYWDKQDHPISRLRHYLLSQGWWDEEQEKAWRKQSRRKVMEAFEQAERKPKPNPNLLFSDVYQEMPAQLRKQQESLARHLQTYGEHYPLDHFDK 445
               SCOP domains d2beva_ A: automated matches                                                                                                                                                                                                                                                                                                                                                                                SCOP domains
               CATH domains 2bevA00 A:6-400  [code=3.40.50.970, no name defined]                                                                                                                                                                                                                                                                                                                                                        CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...........................ee..........hhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhh...........hhhhhhhhhhhh....eee....hhhhhhhh..hhhhhhhhhhh..............................hhhhhhhhhhhhhhhhh....eeeeee.hhhhhhhhhhhhhhhhhh...eeeeeee..ee..ee.hhh.....hhhhhhhhh.eeeeee..hhhhhhhhhhhhhhhhhhhh..eeeeee...........hhhhh.-----hhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhh.......hhhhhhhhhhhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------M-------W------------------------------K--------------------M--------V--------------------------------T------------------------------------R-----------------------------------T-------------------C--------------------------------------------------------------C---C------------------------N------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.2a  PDB: A:6-51 UniProt: 37-96         Exon 1.3  PDB: A:52-80       Exon 1.4  PDB: A:81-117              -----------------------------------------------------Exon 1.6  PDB: A:171-240 UniProt: 216-285                             ----------------------------------------------Exon 1.8b  PDB: A:287-344 (gaps) UniProt: 332-389         Exon 1.9b  PDB: A:345-400 UniProt: 390-445               Transcript 1 (1)
           Transcript 1 (2) ---------------------------------------------------------------------------------------------------------------Exon 1.5  PDB: A:117-171 UniProt: 162-216              --------------------------------------------------------------------Exon 1.7b  PDB: A:240-287 UniProt: 285-332      ----------------------------------------------------------------------------------------------------------------- Transcript 1 (2)
                 2bev A   6 KPQFPGASAEFIDKLEFIQPNVISGIPIYRVMDRQGQIINPSEDPHLPKEKVLKLYKSMTLLNTMDRILYESQRQGRISFYMTNYGEEGTHVGSAAALDNTDLVFGQYREAGVLMYRDYPLELFMAQCYGNISDLGKGRQMPVHYGCKERHFVTISSPLATQIPQAVGAAYAAKRANANRVVICYFGEGAASEGDAHAGFNFAATLECPIIFFCRNNGYAISTPTSEQYRGDGIAARGPGYGIMSIRVDGNDVFAVYNATKEARRRAVAENQPFLIEAMTYRIGHHSTSDDSSAYR-----NYWDKQDHPISRLRHYLLSQGWWDEEQEKAWRKQSRRKVMEAFEQAERKPKPNPNLLFSDVYQEMPAQLRKQQESLARHLQTYGEHYPLDHFDK 400
                                    15        25        35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285       295     |   - |     315       325       335       345       355       365       375       385       395     
                                                                                                                                                                                                                                                                                                                                 301   307                                                                                             

Chain B from PDB  Type:PROTEIN  Length:336
 aligned with ODBB_HUMAN | P21953 from UniProtKB/Swiss-Prot  Length:392

    Alignment length:341
                                    61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391 
           ODBB_HUMAN    52 AHFTFQPDPEPREYGQTQKMNLFQSVTSALDNSLAKDPTAVIFGEDVAFGGVFRCTVGLRDKYGKDRVFNTPLCEQGIVGFGIGIAVTGATAIAEIQFADYIFPAFDQIVNEAAKYRYRSGDLFNCGSLTIRSPWGCVGHGALYHSQSPEAFFAHCPGIKVVIPRSPFQAKGLLLSCIEDKNPCIFFEPKILYRAAAEEVPIEPYNIPLSQAEVIQEGSDVTLVAWGTQVHVIREVASMAKEKLGVSCEVIDLRTIIPWDVDTICKSVIKTGRLLISHEAPLTGGFASEISSTVQEECFLNLEAPISRVCGYDTPFPHIFEPFYIPDKWKCYDALRKMINY 392
               SCOP domains d2bevb1      B:2-204 Branched-chain alpha-keto acid dehydrogenase, Pyr module                                                                                                                              d2bevb2 B:205-342 Branched-chain alpha-keto acid dehydrogenase                                                                             SCOP domains
               CATH domains ---------------2bevB01 B:17-213  [code=3.40.50.970, no name defined]                                                                                                                                                2bevB02 B:214-338  [code=3.40.50.920, no name defined]                                                                       ---- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .......-----....eeeeehhhhhhhhhhhhhhhh...eeee.............hhhhhhh...eee...hhhhhhhhhhhhhhh...eeee..hhhhhhhhhhhhhhhhhhhhhhh........eeeeeee.....hhhhh...hhhhhhh....eee...hhhhhhhhhhhhhhh...eeeeee.hhhhhheeeee...........eeee....eeeee..hhhhhhhhhhhhhhhhhh..eeeee..eee..hhhhhhhhhhhhh.eeeeeeee...hhhhhhhhhhhhhhh.......eeeee........hhhhhh.hhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------H------------P----------------------R-----------------------------------------------------------------------S-------------------------------------------------------------------R---------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 2 (1) Exon 2.1       -------------------------Exon 2.4  PDB: B:42-65  --------------------------------------------Exon 2.7  PDB: B:110-161 UniProt: 160-211           ------------------------------------Exon 2.10  PDB: B:198-230        Exon 2.11  PDB: B:231-267            Exon 2.13b  PDB: B:268-296   Exon 2.14b  PDB: B:297-342 UniProt: 347-392    Transcript 2 (1)
           Transcript 2 (2) --------------Exon 2.3  PDB: B:16-42     ----------------------Exon 2.6  PDB: B:65-109 UniProt: 115-159     ----------------------------------------------------Exon 2.9  PDB: B:162-198             ------------------------------------------------------------------------------------------------------------------------------------------------ Transcript 2 (2)
                 2bev B   2 AHFTFQP-----EYGQTQKMNLFQSVTSALDNSLAKDPTAVIFGEDVAFGGVFRCTVGLRDKYGKDRVFNTPLCEQGIVGFGIGIAVTGATAIAEIQFADYIFPAFDQIVNEAAKYRYRSGDLFNCGSLTIRSPWGCVGHGALYHSQSPEAFFAHCPGIKVVIPRSPFQAKGLLLSCIEDKNPCIFFEPKILYRAAAEEVPIEPYNIPLSQAEVIQEGSDVTLVAWGTQVHVIREVASMAKEKLGVSCEVIDLRTIIPWDVDTICKSVIKTGRLLISHEAPLTGGFASEISSTVQEECFLNLEAPISRVCGYDTPFPHIFEPFYIPDKWKCYDALRKMINY 342
                                  |  -  |     21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341 
                                  8    14                                                                                                                                                                                                                                                                                                                                        

Chain C from PDB  Type:PROTEIN  Length:3
                                   
               SCOP domains --- SCOP domains
               CATH domains --- CATH domains
               Pfam domains --- Pfam domains
         Sec.struct. author ... Sec.struct. author
                 SAPs(SNPs) --- SAPs(SNPs)
                    PROSITE --- PROSITE
                 Transcript --- Transcript
                 2bev C 299 AYR 301

   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  (3, 3)

Asymmetric Unit

(-) CATH Domains  (2, 3)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2BEV)

(-) Gene Ontology  (15, 27)

Asymmetric Unit(hide GO term definitions)
Chain A   (ODBA_HUMAN | P12694)
molecular function
    GO:0003863    3-methyl-2-oxobutanoate dehydrogenase (2-methylpropanoyl-transferring) activity    Catalysis of the reaction: 3-methyl-2-oxobutanoate + lipoamide = S-(2-methylpropanoyl)dihydrolipoamide + CO2.
    GO:0003826    alpha-ketoacid dehydrogenase activity    Catalysis of an oxidation-reduction (redox) reaction involving an alpha-ketoacid.
    GO:0016831    carboxy-lyase activity    Catalysis of the nonhydrolytic addition or removal of a carboxyl group to or from a compound.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    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:0016624    oxidoreductase activity, acting on the aldehyde or oxo group of donors, disulfide as acceptor    Catalysis of an oxidation-reduction (redox) reaction in which an aldehyde or ketone (oxo) group acts as a hydrogen or electron donor and reduces a disulfide.
    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:0009083    branched-chain amino acid catabolic process    The chemical reactions and pathways resulting in the breakdown of amino acids containing a branched carbon skeleton, comprising isoleucine, leucine and valine.
    GO:0046487    glyoxylate metabolic process    The chemical reactions and pathways involving glyoxylate, the anion of glyoxylic acid, HOC-COOH.
    GO:0008152    metabolic process    The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
    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:0005947    mitochondrial alpha-ketoglutarate dehydrogenase complex    Mitochondrial complex that possesses alpha-ketoglutarate dehydrogenase activity.
    GO:0005759    mitochondrial matrix    The gel-like material, with considerable fine structure, that lies in the matrix space, or lumen, of a mitochondrion. It contains the enzymes of the tricarboxylic acid cycle and, in some organisms, the enzymes concerned with fatty acid oxidation.
    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.

Chain B   (ODBB_HUMAN | P21953)
molecular function
    GO:0003863    3-methyl-2-oxobutanoate dehydrogenase (2-methylpropanoyl-transferring) activity    Catalysis of the reaction: 3-methyl-2-oxobutanoate + lipoamide = S-(2-methylpropanoyl)dihydrolipoamide + CO2.
    GO:0003826    alpha-ketoacid dehydrogenase activity    Catalysis of an oxidation-reduction (redox) reaction involving an alpha-ketoacid.
    GO:0016831    carboxy-lyase activity    Catalysis of the nonhydrolytic addition or removal of a carboxyl group to or from a compound.
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    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:0009083    branched-chain amino acid catabolic process    The chemical reactions and pathways resulting in the breakdown of amino acids containing a branched carbon skeleton, comprising isoleucine, leucine and valine.
    GO:0046487    glyoxylate metabolic process    The chemical reactions and pathways involving glyoxylate, the anion of glyoxylic acid, HOC-COOH.
    GO:0008152    metabolic process    The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
    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:0005947    mitochondrial alpha-ketoglutarate dehydrogenase complex    Mitochondrial complex that possesses alpha-ketoglutarate dehydrogenase activity.
    GO:0005759    mitochondrial matrix    The gel-like material, with considerable fine structure, that lies in the matrix space, or lumen, of a mitochondrion. It contains the enzymes of the tricarboxylic acid cycle and, in some organisms, the enzymes concerned with fatty acid oxidation.
    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
        ODBA_HUMAN | P126941dtw 1ols 1olu 1olx 1u5b 1v11 1v16 1v1m 1v1r 1wci 1x7w 1x7x 1x7y 1x7z 1x80 2beu 2bew 2bfb 2bfc 2bfd 2bfe 2bff 2j9f
        ODBB_HUMAN | P219531dtw 1ols 1olu 1olx 1u5b 1v11 1v16 1v1m 1v1r 1wci 1x7w 1x7x 1x7y 1x7z 1x80 2beu 2bew 2bfb 2bfc 2bfd 2bfe 2bff 2j9f

(-) Related Entries Specified in the PDB File

1dtw HUMAN BRANCHED-CHAIN ALPHA-KETO ACID DEHYDROGENASE
1ols ROLES OF HIS291-ALPHA AND HIS146-BETA' IN THE REDUCTIVE ACYLATION REACTION CATALYZED BY HUMAN BRANCHED-CHAIN ALPHA-KETOACID DEHYDROGENASE
1olu ROLES OF HIS291-ALPHA AND HIS146-BETA' IN THE REDUCTIVE ACYLATION REACTION CATALYZED BY HUMAN BRANCHED-CHAIN ALPHA-KETOACID DEHYDROGENASE
1olx ROLES OF HIS291-ALPHA AND HIS146-BETA' IN THE REDUCTIVE ACYLATION REACTION CATALYZED BY HUMAN BRANCHED-CHAIN ALPHA-KETOACID DEHYDROGENASE
1u5b CRYSTAL STRUCTURE OF THE HUMAN MITOCHONDRIAL BRANCHED-CHAINALPHA-KETOACID DEHYDROGENASE
1v11 CROSSTALK BETWEEN COFACTOR BINDING AND THE PHOSPHORYLATION LOOP CONFORMATION IN THE BCKD MACHINE
1v16 CROSSTALK BETWEEN COFACTOR BINDING AND THE PHOSPHORYLATION LOOP CONFORMATION IN THE BCKD MACHINE
1v1m CROSSTALK BETWEEN COFACTOR BINDING AND THE PHOSPHORYLATION LOOP CONFORMATION IN THE BCKD MACHINE
1v1r CROSSTALK BETWEEN COFACTOR BINDING AND THE PHOSPHORYLATION LOOP CONFORMATION IN THE BCKD MACHINE
1wci REACTIVITY MODULATION OF HUMAN BRANCHED-CHAIN ALPHA-KETOACID DEHYDROGENASE BY AN INTERNAL MOLECULAR SWITCH
1x7w CRYSTAL STRUCTURE OF THE HUMAN MITOCHONDRIAL BRANCHED-CHAINALPHA-KETOACID DEHYDROGENASE
1x7x CRYSTAL STRUCTURE OF THE HUMAN MITOCHONDRIAL BRANCHED-CHAINALPHA-KETOACID DEHYDROGENASE
1x7y CRYSTAL STRUCTURE OF THE HUMAN MITOCHONDRIAL BRANCHED-CHAINALPHA-KETOACID DEHYDROGENASE
1x7z CRYSTAL STRUCTURE OF THE HUMAN MITOCHONDRIAL BRANCHED-CHAINALPHA-KETOACID DEHYDROGENASE
1x80 CRYSTAL STRUCTURE OF THE HUMAN MITOCHONDRIAL BRANCHED-CHAINALPHA-KETOACID DEHYDROGENASE
2beu REACTIVITY MODULATION OF HUMAN BRANCHED-CHAIN ALPHA-KETOACID DEHYDROGENASE BY AN INTERNAL MOLECULAR SWITCH
2bew REACTIVITY MODULATION OF HUMAN BRANCHED-CHAIN ALPHA-KETOACID DEHYDROGENASE BY AN INTERNAL MOLECULAR SWITCH
2bfb REACTIVITY MODULATION OF HUMAN BRANCHED-CHAIN ALPHA-KETOACID DEHYDROGENASE BY AN INTERNAL MOLECULAR SWITCH
2bfc REACTIVITY MODULATION OF HUMAN BRANCHED-CHAIN ALPHA-KETOACID DEHYDROGENASE BY AN INTERNAL MOLECULAR SWITCH
2bfd REACTIVITY MODULATION OF HUMAN BRANCHED-CHAIN ALPHA-KETOACID DEHYDROGENASE BY AN INTERNAL MOLECULAR SWITCH
2bfe REACTIVITY MODULATION OF HUMAN BRANCHED-CHAIN ALPHA-KETOACID DEHYDROGENASE BY AN INTERNAL MOLECULAR SWITCH
2bff REACTIVITY MODULATION OF HUMAN BRANCHED-CHAIN ALPHA-KETOACID DEHYDROGENASE BY AN INTERNAL MOLECULAR SWITCH