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Title :   7-ALPHA-HYDROXYSTEROID DEHYDROGENASE COMPLEX WITH NADH AND 7-OXO GLYCOCHENODEOXYCHOLIC ACID

Authors :   N. Tanaka, T. Nonaka, Y. Mitsui

Date :   26 Apr 96 (Deposition) - 08 Nov 96 (Release) - 06 Nov 13 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.80

Chains :   Asym. Unit : A,B
Biol. Unit 1: A,B  (2x)

Keywords :   Short-Chain Dehydrogenase/Reductase, Bile Acid Catabolism, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   N. Tanaka, T. Nonaka, T. Tanabe, T. Yoshimoto, D. Tsuru, Y. Mitsui
Crystal Structures Of The Binary And Ternary Complexes Of 7 Alpha-Hydroxysteroid Dehydrogenase From Escherichia Coli.
Biochemistry V. 35 7715 1996
PubMed-ID: 8672472 | Reference-DOI: 10.1021/BI951904D
(for further references see the PDB file header)

Molecule 1 - 7 ALPHA-HYDROXYSTEROID DEHYDROGENASE
	Cell Line	:	CHO
	Chains	:	A, B
	EC Number	:	1.1.1.159
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	HB101
	Expression System Taxid	:	562
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	562
	Other Details	:	LIGANDS ARE NADH AND 7-OXO GLYCOCHENODEOXYCHOLIC ACID (CHO)
	Other Details - Source	:	COLON BACILLUS
	Strain	:	HB101

		1	2
Asymmetric Unit	:	A	B
Biological Unit 1 (2x)	:	A	B

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (2, 4)

No.	Name	Count	Type	Full Name
1	CHO	2	Ligand/Ion	GLYCOCHENODEOXYCHOLIC ACID
2	NAI	2	Ligand/Ion	1,4-DIHYDRONICOTINAMIDE ADENINE DINUCLEOTIDE

Biological Unit 1 (2, 8)

No.	Name	Count	Type	Full Name
1	CHO	4	Ligand/Ion	GLYCOCHENODEOXYCHOLIC ACID
2	NAI	4	Ligand/Ion	1,4-DIHYDRONICOTINAMIDE ADENINE DINUCLEOTIDE

Asymmetric Unit (4, 4)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	GLY A:98 , GLY A:99 , SER A:146 , ALA A:148 , ASN A:151 , TYR A:159 , ALA A:196 , LEU A:197 , GLN A:252 , NAI A:302 , HOH A:413	BINDING SITE FOR RESIDUE CHO A 301
2	AC2	SOFTWARE	GLY A:18 , GLY A:20 , ALA A:21 , ILE A:23 , ASP A:42 , ILE A:43 , CYS A:67 , ASP A:68 , ILE A:69 , ASN A:95 , GLY A:97 , ILE A:144 , THR A:145 , TYR A:159 , LYS A:163 , PRO A:189 , GLY A:190 , ILE A:192 , THR A:194 , ALA A:196 , CHO A:301 , HOH A:449 , HOH A:456 , HOH A:491	BINDING SITE FOR RESIDUE NAI A 302
3	AC3	SOFTWARE	GLY B:98 , GLY B:99 , SER B:146 , ALA B:148 , ASN B:151 , MET B:156 , TYR B:159 , GLY B:190 , LEU B:197 , GLN B:252 , NAI B:302 , HOH B:444 , HOH B:526	BINDING SITE FOR RESIDUE CHO B 301
4	AC4	SOFTWARE	GLY B:18 , ALA B:21 , GLY B:22 , ILE B:23 , ASP B:42 , ILE B:43 , CYS B:67 , ASP B:68 , ILE B:69 , ASN B:95 , GLY B:97 , ILE B:144 , THR B:145 , TYR B:159 , LYS B:163 , PRO B:189 , GLY B:190 , ILE B:192 , THR B:194 , ALA B:196 , CHO B:301 , HOH B:404 , HOH B:432 , HOH B:446 , HOH B:462 , HOH B:502	BINDING SITE FOR RESIDUE NAI B 302

(no "SS Bond" information available for 1FMC)

(no "Cis Peptide Bond" information available for 1FMC)

(no "SAP(SNP)/Variant" information available for 1FMC)

Asymmetric Unit (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ADH_SHORT	PS00061	Short-chain dehydrogenases/reductases family signature.	HDHA_ECO57	146-174	2	A:146-174 B:146-174
1	ADH_SHORT	PS00061	Short-chain dehydrogenases/reductases family signature.	HDHA_ECOLI	146-174	2	A:146-174 B:146-174

Biological Unit 1 (1, 8)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ADH_SHORT	PS00061	Short-chain dehydrogenases/reductases family signature.	HDHA_ECO57	146-174	4	A:146-174 B:146-174
1	ADH_SHORT	PS00061	Short-chain dehydrogenases/reductases family signature.	HDHA_ECOLI	146-174	4	A:146-174 B:146-174

(no "Exon" information available for 1FMC)

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:255
 aligned with HDHA_ECO57 | P0AET9 from UniProtKB/Swiss-Prot  Length:255

    Alignment length:255
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250     
           HDHA_ECO57     1 MFNSDNLRLDGKCAIITGAGAGIGKEIAITFATAGASVVVSDINADAANHVVDEIQQLGGQAFACRCDITSEQELSALADFAISKLGKVDILVNNAGGGGPKPFDMPMADFRRAYELNVFSFFHLSQLVAPEMEKNGGGVILTITSMAAENKNINMTSYASSKAAASHLVRNMAFDLGEKNIRVNGIAPGAILTDALKSVITPEIEQKMLQHTPIRRLGQPQDIANAALFLCSPAASWVSGQILTVSGGGVQELN 255
               SCOP domains d1fmca_ A: 7-alpha-hydroxysteroid dehydrogenase                                                                                                                                                                                                                 SCOP domains
               CATH domains 1fmcA00 A:1-255 NAD(P)-binding Rossmann-like Domain                                                                                                                                                                                                             CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ............eeee.....hhhhhhhhhhh....eeeeee..hhhhhhhhhhhhh....eeeee.....hhhhhhhhhhhhhhh....eeee.............hhhhhhhhhhhhhhhhhhhhhhhhhhhhh..eeeeee............hhhhhhhhhhhhhhhhhhhhhh...eeeeeeee.....hhhh....hhhhhhhhh.........hhhhhhhhhhhh..........eeee......... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) -------------------------------------------------------------------------------------------------------------------------------------------------ADH_SHORT  PDB: A:146-174    --------------------------------------------------------------------------------- PROSITE (2)
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1fmc A   1 MFNSDNLRLDGKCAIITGAGAGIGKEIAITFATAGASVVVSDINADAANHVVDEIQQLGGQAFACRCDITSEQELSALADFAISKLGKVDILVNNAGGGGPKPFDMPMADFRRAYELNVFSFFHLSQLVAPEMEKNGGGVILTITSMAAENKNINMTSYASSKAAASHLVRNMAFDLGEKNIRVNGIAPGAILTDALKSVITPEIEQKMLQHTPIRRLGQPQDIANAALFLCSPAASWVSGQILTVSGGGVQELN 255
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250

Chain A from PDB  Type:PROTEIN  Length:255
 aligned with HDHA_ECOLI | P0AET8 from UniProtKB/Swiss-Prot  Length:255

    Alignment length:255
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250     
           HDHA_ECOLI     1 MFNSDNLRLDGKCAIITGAGAGIGKEIAITFATAGASVVVSDINADAANHVVDEIQQLGGQAFACRCDITSEQELSALADFAISKLGKVDILVNNAGGGGPKPFDMPMADFRRAYELNVFSFFHLSQLVAPEMEKNGGGVILTITSMAAENKNINMTSYASSKAAASHLVRNMAFDLGEKNIRVNGIAPGAILTDALKSVITPEIEQKMLQHTPIRRLGQPQDIANAALFLCSPAASWVSGQILTVSGGGVQELN 255
               SCOP domains d1fmca_ A: 7-alpha-hydroxysteroid dehydrogenase                                                                                                                                                                                                                 SCOP domains
               CATH domains 1fmcA00 A:1-255 NAD(P)-binding Rossmann-like Domain                                                                                                                                                                                                             CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ............eeee.....hhhhhhhhhhh....eeeeee..hhhhhhhhhhhhh....eeeee.....hhhhhhhhhhhhhhh....eeee.............hhhhhhhhhhhhhhhhhhhhhhhhhhhhh..eeeeee............hhhhhhhhhhhhhhhhhhhhhh...eeeeeeee.....hhhh....hhhhhhhhh.........hhhhhhhhhhhh..........eeee......... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------ADH_SHORT  PDB: A:146-174    --------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1fmc A   1 MFNSDNLRLDGKCAIITGAGAGIGKEIAITFATAGASVVVSDINADAANHVVDEIQQLGGQAFACRCDITSEQELSALADFAISKLGKVDILVNNAGGGGPKPFDMPMADFRRAYELNVFSFFHLSQLVAPEMEKNGGGVILTITSMAAENKNINMTSYASSKAAASHLVRNMAFDLGEKNIRVNGIAPGAILTDALKSVITPEIEQKMLQHTPIRRLGQPQDIANAALFLCSPAASWVSGQILTVSGGGVQELN 255
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250

Chain B from PDB  Type:PROTEIN  Length:255
 aligned with HDHA_ECO57 | P0AET9 from UniProtKB/Swiss-Prot  Length:255

    Alignment length:255
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250     
           HDHA_ECO57     1 MFNSDNLRLDGKCAIITGAGAGIGKEIAITFATAGASVVVSDINADAANHVVDEIQQLGGQAFACRCDITSEQELSALADFAISKLGKVDILVNNAGGGGPKPFDMPMADFRRAYELNVFSFFHLSQLVAPEMEKNGGGVILTITSMAAENKNINMTSYASSKAAASHLVRNMAFDLGEKNIRVNGIAPGAILTDALKSVITPEIEQKMLQHTPIRRLGQPQDIANAALFLCSPAASWVSGQILTVSGGGVQELN 255
               SCOP domains d1fmcb_ B: 7-alpha-hydroxysteroid dehydrogenase                                                                                                                                                                                                                 SCOP domains
               CATH domains 1fmcB00 B:1-255 NAD(P)-binding Rossmann-like Domain                                                                                                                                                                                                             CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ............eeee.....hhhhhhhhhhhh...eeeeee..hhhhhhhhhhhhh....eeeee.....hhhhhhhhhhhhhhh....eeee.............hhhhhhhhhhhhhhhhhhhhhhhhhhhh...eeeeee............hhhhhhhhhhhhhhhhhhhhhh...eeeeeeee.....hhhh....hhhhhhhhh.........hhhhhhhhhhhh..........eeee......... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) -------------------------------------------------------------------------------------------------------------------------------------------------ADH_SHORT  PDB: B:146-174    --------------------------------------------------------------------------------- PROSITE (2)
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1fmc B   1 MFNSDNLRLDGKCAIITGAGAGIGKEIAITFATAGASVVVSDINADAANHVVDEIQQLGGQAFACRCDITSEQELSALADFAISKLGKVDILVNNAGGGGPKPFDMPMADFRRAYELNVFSFFHLSQLVAPEMEKNGGGVILTITSMAAENKNINMTSYASSKAAASHLVRNMAFDLGEKNIRVNGIAPGAILTDALKSVITPEIEQKMLQHTPIRRLGQPQDIANAALFLCSPAASWVSGQILTVSGGGVQELN 255
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250

Chain B from PDB  Type:PROTEIN  Length:255
 aligned with HDHA_ECOLI | P0AET8 from UniProtKB/Swiss-Prot  Length:255

    Alignment length:255
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250     
           HDHA_ECOLI     1 MFNSDNLRLDGKCAIITGAGAGIGKEIAITFATAGASVVVSDINADAANHVVDEIQQLGGQAFACRCDITSEQELSALADFAISKLGKVDILVNNAGGGGPKPFDMPMADFRRAYELNVFSFFHLSQLVAPEMEKNGGGVILTITSMAAENKNINMTSYASSKAAASHLVRNMAFDLGEKNIRVNGIAPGAILTDALKSVITPEIEQKMLQHTPIRRLGQPQDIANAALFLCSPAASWVSGQILTVSGGGVQELN 255
               SCOP domains d1fmcb_ B: 7-alpha-hydroxysteroid dehydrogenase                                                                                                                                                                                                                 SCOP domains
               CATH domains 1fmcB00 B:1-255 NAD(P)-binding Rossmann-like Domain                                                                                                                                                                                                             CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ............eeee.....hhhhhhhhhhhh...eeeeee..hhhhhhhhhhhhh....eeeee.....hhhhhhhhhhhhhhh....eeee.............hhhhhhhhhhhhhhhhhhhhhhhhhhhh...eeeeee............hhhhhhhhhhhhhhhhhhhhhh...eeeeeeee.....hhhh....hhhhhhhhh.........hhhhhhhhhhhh..........eeee......... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------ADH_SHORT  PDB: B:146-174    --------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1fmc B   1 MFNSDNLRLDGKCAIITGAGAGIGKEIAITFATAGASVVVSDINADAANHVVDEIQQLGGQAFACRCDITSEQELSALADFAISKLGKVDILVNNAGGGGPKPFDMPMADFRRAYELNVFSFFHLSQLVAPEMEKNGGGVILTITSMAAENKNINMTSYASSKAAASHLVRNMAFDLGEKNIRVNGIAPGAILTDALKSVITPEIEQKMLQHTPIRRLGQPQDIANAALFLCSPAASWVSGQILTVSGGGVQELN 255
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250

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 '\|'

Asymmetric Unit

Classes(

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Folds(

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Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: Alpha and beta proteins (a/b) (23833)

Fold: NAD(P)-binding Rossmann-fold domains (1604)

Superfamily: NAD(P)-binding Rossmann-fold domains (1604)

Family: Tyrosine-dependent oxidoreductases (503)

Protein domain: 7-alpha-hydroxysteroid dehydrogenase (3)

Escherichia coli [TaxId: 562] (3)

1a	d1fmca_	A:
1b	d1fmcb_	B:

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 3-Layer(aba) Sandwich (12045)

Topology: Rossmann fold (7312)

Homologous Superfamily: NAD(P)-binding Rossmann-like Domain (1244)

Escherichia coli. Organism_taxid: 562. Strain: hb101. Cell_line: cho. (1)

1a	1fmcA00	A:1-255
1b	1fmcB00	B:1-255

(no "Pfam Domain" information available for 1FMC)

Asymmetric Unit(hide GO term definitions)

Chain A,B (HDHA_ECOLI | P0AET8)

molecular function
	GO:0008709	cholate 7-alpha-dehydrogenase activity	Catalysis of the reaction: cholate + NAD(+) = 3alpha,12alpha-dihydroxy-7-oxo-5beta-cholanate + H(+) + NADH.
	GO:0042802	identical protein binding	Interacting selectively and non-covalently with an identical protein or proteins.
	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.
biological process
	GO:0030573	bile acid catabolic process	The chemical reactions and pathways resulting in the breakdown of bile acids, any of a group of steroid carboxylic acids occurring in bile.
	GO:0016042	lipid catabolic process	The chemical reactions and pathways resulting in the breakdown of lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent.
	GO:0006629	lipid metabolic process	The chemical reactions and pathways involving lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent. Includes fatty acids; neutral fats, other fatty-acid esters, and soaps; long-chain (fatty) alcohols and waxes; sphingoids and other long-chain bases; glycolipids, phospholipids and sphingolipids; and carotenes, polyprenols, sterols, terpenes and other isoprenoids.
	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.
	GO:0051289	protein homotetramerization	The formation of a protein homotetramer, a macromolecular structure consisting of four noncovalently associated identical subunits.
	GO:0008202	steroid metabolic process	The chemical reactions and pathways involving steroids, compounds with a 1,2,cyclopentanoperhydrophenanthrene nucleus.
cellular component
	GO:0005829	cytosol	The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

Chain A,B (HDHA_ECO57 | P0AET9)

molecular function
	GO:0008709	cholate 7-alpha-dehydrogenase activity	Catalysis of the reaction: cholate + NAD(+) = 3alpha,12alpha-dihydroxy-7-oxo-5beta-cholanate + H(+) + NADH.
	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.
biological process
	GO:0030573	bile acid catabolic process	The chemical reactions and pathways resulting in the breakdown of bile acids, any of a group of steroid carboxylic acids occurring in bile.
	GO:0016042	lipid catabolic process	The chemical reactions and pathways resulting in the breakdown of lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent.
	GO:0006629	lipid metabolic process	The chemical reactions and pathways involving lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent. Includes fatty acids; neutral fats, other fatty-acid esters, and soaps; long-chain (fatty) alcohols and waxes; sphingoids and other long-chain bases; glycolipids, phospholipids and sphingolipids; and carotenes, polyprenols, sterols, terpenes and other isoprenoids.
	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.
	GO:0008202	steroid metabolic process	The chemical reactions and pathways involving steroids, compounds with a 1,2,cyclopentanoperhydrophenanthrene nucleus.

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(no "Related Entries Specified in the PDB File" available for 1FMC)

Description

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Ligands, Modified Residues, Ions (2, 4)

Sites (4, 4)

SS Bonds (0, 0)

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