1B3O - JenaLib

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Asymmetric Unit (Jmol Viewer)

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Biol. Unit 1 - sites (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Title :   TERNARY COMPLEX OF HUMAN TYPE-II INOSINE MONOPHOSPHATE DEHYDROGENASE WITH 6-CL-IMP AND SELENAZOLE ADENINE DINUCLEOTIDE

Authors :   T. D. Colby, K. Vanderveen, M. D. Strickler, B. M. Goldstein

Date :   14 Dec 98 (Deposition) - 12 Apr 99 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.90

Chains :   Asym. Unit : A,B
Biol. Unit 1: A  (4x)
Biol. Unit 2: B  (4x)

Keywords :   Dehydrogenase, Impd, Impdh, Guanine Nucleotide Synthesis (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   T. D. Colby, K. Vanderveen, M. D. Strickler, G. D. Markham, B. M. Goldstein
Crystal Structure Of Human Type Ii Inosine Monophosphate Dehydrogenase: Implications For Ligand Binding And Drug Design.
Proc. Natl. Acad. Sci. Usa V. 96 3531 1999
PubMed-ID: 10097070 | Reference-DOI: 10.1073/PNAS.96.7.3531
(for further references see the PDB file header)

Molecule 1 - PROTEIN (INOSINE MONOPHOSPHATE DEHYDROGENASE 2)
	Chains	:	A, B
	EC Number	:	1.1.1.205
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Taxid	:	562
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Synonym	:	IMPD, IMPDH
	Variant	:	TYPE II ISOZYME

		1	2
Asymmetric Unit	:	A	B
Biological Unit 1 (4x)	:	A
Biological Unit 2 (4x)	:		B

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (3, 19)

No.	Name	Count	Type	Full Name
1	CPR	2	Ligand/Ion	6-CHLOROPURINE RIBOSIDE, 5'-MONOPHOSPHATE
2	SAE	2	Ligand/Ion	SELENAZOLE-4-CARBOXYAMIDE-ADENINE DINUCLEOTIDE
3	UNX	15	Ligand/Ion	UNKNOWN ATOM OR ION

Biological Unit 1 (2, 8)

No.	Name	Count	Type	Full Name
1	CPR	4	Ligand/Ion	6-CHLOROPURINE RIBOSIDE, 5'-MONOPHOSPHATE
2	SAE	4	Ligand/Ion	SELENAZOLE-4-CARBOXYAMIDE-ADENINE DINUCLEOTIDE
3	UNX	-1	Ligand/Ion	UNKNOWN ATOM OR ION

Biological Unit 2 (3, 68)

No.	Name	Count	Type	Full Name
1	CPR	4	Ligand/Ion	6-CHLOROPURINE RIBOSIDE, 5'-MONOPHOSPHATE
2	SAE	4	Ligand/Ion	SELENAZOLE-4-CARBOXYAMIDE-ADENINE DINUCLEOTIDE
3	UNX	60	Ligand/Ion	UNKNOWN ATOM OR ION

Asymmetric Unit (4, 4)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	SER A:68 , ARG A:322 , SER A:327 , ASP A:364 , GLY A:366 , MET A:385 , GLY A:387 , SER A:388 , SAE A:600	BINDING SITE FOR RESIDUE CPR A 631
2	AC2	SOFTWARE	SER B:68 , ARG B:322 , GLY B:328 , SER B:329 , CYS B:331 , GLN B:334 , GLU B:335 , ASP B:364 , GLY B:365 , GLY B:366 , GLY B:387 , SER B:388 , SAE B:601 , HOH B:658	BINDING SITE FOR RESIDUE CPR B 631
3	AC3	SOFTWARE	THR A:45 , THR A:252 , HIS A:253 , ASP A:274 , SER A:275 , SER A:276 , PHE A:282 , ASN A:303 , GLY A:324 , GLN A:469 , CPR A:631 , HOH A:637	BINDING SITE FOR RESIDUE SAE A 600
4	AC4	SOFTWARE	THR B:45 , THR B:252 , HIS B:253 , ASP B:274 , SER B:275 , SER B:276 , PHE B:282 , ASN B:303 , GLY B:324 , GLN B:334 , HIS B:466 , GLN B:469 , CPR B:631 , HOH B:648	BINDING SITE FOR RESIDUE SAE B 601

(no "SS Bond" information available for 1B3O)

(no "Cis Peptide Bond" information available for 1B3O)

Asymmetric Unit (1, 2)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_070542	L	263	F	IMDH2_HUMAN	Polymorphism	121434586	A/B	L	263	F

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

Biological Unit 1 (1, 4)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_070542	L	263	F	IMDH2_HUMAN	Polymorphism	121434586	A	L	263	F

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

Biological Unit 2 (1, 4)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_070542	L	263	F	IMDH2_HUMAN	Polymorphism	121434586	B	L	263	F

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

Asymmetric Unit (2, 5)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CBS	PS51371	CBS domain profile.	IMDH2_HUMAN	114-173 179-237	3	B:114-159 A:232-237 B:179-237
2	IMP_DH_GMP_RED	PS00487	IMP dehydrogenase / GMP reductase signature.	IMDH2_HUMAN	321-333	2	A:321-327 B:321-333

Biological Unit 1 (2, 8)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CBS	PS51371	CBS domain profile.	IMDH2_HUMAN	114-173 179-237	4	- A:232-237 -
2	IMP_DH_GMP_RED	PS00487	IMP dehydrogenase / GMP reductase signature.	IMDH2_HUMAN	321-333	4	A:321-327 -

Biological Unit 2 (2, 12)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CBS	PS51371	CBS domain profile.	IMDH2_HUMAN	114-173 179-237	8	B:114-159 - B:179-237
2	IMP_DH_GMP_RED	PS00487	IMP dehydrogenase / GMP reductase signature.	IMDH2_HUMAN	321-333	4	- B:321-333

Asymmetric Unit (13, 25)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.1c	ENST00000326739	1c	ENSE00001923105	chr3:49066823-49066686	138	IMDH2_HUMAN	1-33	33	2	A:10-33 B:10-33	24 24
1.2a	ENST00000326739	2a	ENSE00001269277	chr3:49066239-49066191	49	IMDH2_HUMAN	33-49	17	2	A:33-49 B:33-49	17 17
1.2c	ENST00000326739	2c	ENSE00001269267	chr3:49065965-49065864	102	IMDH2_HUMAN	50-83	34	2	A:50-83 B:50-83	34 34
1.3a	ENST00000326739	3a	ENSE00001269259	chr3:49065755-49065681	75	IMDH2_HUMAN	84-108	25	2	A:84-108 B:84-108	25 25
1.3g	ENST00000326739	3g	ENSE00001269252	chr3:49065349-49065143	207	IMDH2_HUMAN	109-177	69	2	A:109-109 B:109-159 (gaps)	1 51
1.4a	ENST00000326739	4a	ENSE00001269242	chr3:49064480-49064393	88	IMDH2_HUMAN	178-207	30	1	- B:178-207	- 30
1.4c	ENST00000326739	4c	ENSE00001269233	chr3:49064319-49064120	200	IMDH2_HUMAN	207-273	67	2	A:232-273 B:207-273	42 67
1.5b	ENST00000326739	5b	ENSE00001269229	chr3:49064042-49063952	91	IMDH2_HUMAN	274-304	31	2	A:274-304 B:274-304	31 31
1.6	ENST00000326739	6	ENSE00001671432	chr3:49063852-49063757	96	IMDH2_HUMAN	304-336	33	2	A:304-327 B:304-336	24 33
1.8b	ENST00000326739	8b	ENSE00001269218	chr3:49062702-49062559	144	IMDH2_HUMAN	336-384	49	2	A:341-384 B:336-384	44 49
1.9a	ENST00000326739	9a	ENSE00001269212	chr3:49062473-49062329	145	IMDH2_HUMAN	384-432	49	2	A:384-400 B:384-400	17 17
1.9e	ENST00000326739	9e	ENSE00001269205	chr3:49062235-49062092	144	IMDH2_HUMAN	432-480	49	2	A:449-480 B:449-480	32 32
1.9h	ENST00000326739	9h	ENSE00001269198	chr3:49062011-49061928	84	IMDH2_HUMAN	480-508	29	2	A:480-499 B:480-499	20 20
1.9k	ENST00000326739	9k	ENSE00001754493	chr3:49061837-49061758	80	IMDH2_HUMAN	508-514	7	0	-	-

Asymmetric Unit

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	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:307
 aligned with IMDH2_HUMAN | P12268 from UniProtKB/Swiss-Prot  Length:514

    Alignment length:490
                                    19        29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369       379       389       399       409       419       429       439       449       459       469       479       489       499
          IMDH2_HUMAN    10 TSYVPDDGLTAQQLFNCGDGLTYNDFLILPGYIDFTADQVDLTSALTKKITLKTPLVSSPMDTVTEAGMAIAMALTGGIGFIHHNCTPEFQANEVRKVKKYEQGFITDPVVLSPKDRVRDVFEAKARHGFCGIPITDTGRMGSRLVGIISSRDIDFLKEEEHDCFLEEIMTKREDLVVAPAGITLKEANEILQRSKKGKLPIVNEDDELVAIIARTDLKKNRDYPLASKDAKKQLLCGAAIGTHEDDKYRLDLLAQAGVDVVVLDSSQGNSIFQINMIKYIKDKYPNLQVIGGNVVTAAQAKNLIDAGVDALRVGMGSGSICITQEVLACGRPQATAVYKVSEYARRFGVPVIADGGIQNVGHIAKALALGASTVMMGSLLAATTEAPGEYFFSDGIRLKKYRGMGSLDAMDKHLSSQNRYFSEADKIKVAQGVSGAVQDKGSIHKFVPYLIAGIQHSCQDIGAKSLTQVRAMMYSGELKFEKRTSSAQV 499
               SCOP domains d1b3oa1 A:10-109,A:232-499 Inosine monophosphate dehydrogenase (IMPDH)                                                                                                                                                        d1b3oa1 A:10-109,A:232-499 Inosine monophosphate dehydrogenase (IMPDH)                                                                                                                                                                                                       SCOP domains
               CATH domains 1b3oA00 A:10-499 Aldolase class I                                                                                                                                                                                                                                                                                                                                                                                                                                                                          CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..........hhhh........hhheee........hhh....eeee..eee...eee.........hhhhhhhhh...........hhhhhhhhhhh..--------------------------------------------------------------------------------------------------------------------------...............eeee...hhhhhhhhhhhh....eeee.......hhhhhhhhhhhhh....eee......hhhhhhhhh....eeee....-------------..hhhhhhhhhhhhhhh..eeeee.....hhhhhhhhh....eeee..............------------------------------------------------....hhhhhhhhhhhhhhhhhh.....hhhhhhhhhh....eee....... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------F-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------CBS  PDB: - UniProt: 114-173                                -----CBS  PDB: A:232-237 UniProt: 179-237                       -----------------------------------------------------------------------------------IMP_DH_GMP_RE---------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.1c  PDB: A:10-33 ----------------Exon 1.2c  PDB: A:50-83           Exon 1.3a  PDB: A:84-108 Exon 1.3g  PDB: A:109-109 UniProt: 109-177 [INCOMPLETE]              Exon 1.4a  PDB: -             ------------------------------------------------------------------Exon 1.5b  PDB: A:274-304      -------------------------------Exon 1.8b  PDB: A:341-384 UniProt: 336-384       -----------------------------------------------Exon 1.9e  PDB: A:449-480 UniProt: 432-480       ------------------- Transcript 1 (1)
           Transcript 1 (2) -----------------------Exon 1.2a        -------------------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.4c  PDB: A:232-273 UniProt: 207-273 [INCOMPLETE]            ------------------------------Exon 1.6  PDB: A:304-327         -----------------------------------------------Exon 1.9a  PDB: A:384-400 UniProt: 384-432       -----------------------------------------------Exon 1.9h            Transcript 1 (2)
                 1b3o A  10 TSYVPDDGLTAQQLFNCGDGLTYNDFLILPGYIDFTADQVDLTSALTKKITLKTPLVSSPMDTVTEAGMAIAMALTGGIGFIHHNCTPEFQANEVRKVKK--------------------------------------------------------------------------------------------------------------------------DYPLASKDAKKQLLCGAAIGTHEDDKYRLDLLAQAGVDVVVLDSSQGNSIFQINMIKYIKDKYPNLQVIGGNVVTAAQAKNLIDAGVDALRVGMGS-------------RPQATAVYKVSEYARRFGVPVIADGGIQNVGHIAKALALGASTVMMGSLLAATTEAPGEY------------------------------------------------DKGSIHKFVPYLIAGIQHSCQDIGAKSLTQVRAMMYSGELKFEKRTSSAQV 499
                                    19        29        39        49        59        69        79        89        99       109         -         -         -         -         -         -         -         -         -         -         -         -  |    239       249       259       269       279       289       299       309       319       | -         - |     349       359       369       379       389       399|        -         -         -         -       449       459       469       479       489       499
                                                                                                                             109                                                                                                                        232                                                                                            327           341                                                        400                                              449

Chain B from PDB  Type:PROTEIN  Length:414
 aligned with IMDH2_HUMAN | P12268 from UniProtKB/Swiss-Prot  Length:514

    Alignment length:490
                                    19        29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369       379       389       399       409       419       429       439       449       459       469       479       489       499
          IMDH2_HUMAN    10 TSYVPDDGLTAQQLFNCGDGLTYNDFLILPGYIDFTADQVDLTSALTKKITLKTPLVSSPMDTVTEAGMAIAMALTGGIGFIHHNCTPEFQANEVRKVKKYEQGFITDPVVLSPKDRVRDVFEAKARHGFCGIPITDTGRMGSRLVGIISSRDIDFLKEEEHDCFLEEIMTKREDLVVAPAGITLKEANEILQRSKKGKLPIVNEDDELVAIIARTDLKKNRDYPLASKDAKKQLLCGAAIGTHEDDKYRLDLLAQAGVDVVVLDSSQGNSIFQINMIKYIKDKYPNLQVIGGNVVTAAQAKNLIDAGVDALRVGMGSGSICITQEVLACGRPQATAVYKVSEYARRFGVPVIADGGIQNVGHIAKALALGASTVMMGSLLAATTEAPGEYFFSDGIRLKKYRGMGSLDAMDKHLSSQNRYFSEADKIKVAQGVSGAVQDKGSIHKFVPYLIAGIQHSCQDIGAKSLTQVRAMMYSGELKFEKRTSSAQV 499
               SCOP domains d1b3ob1 B:10-111,B:232-499 Inosine monophosphate dehydrogenase (IMPDH)                                d1b3ob4 B:112-231           Type II inosine mono                  phosphate dehydrogenase CBS domains                   d1b3ob1 B:10-111,B:232-499 Inosine monophosphate dehydrogenase (IMPDH)                                                                                                                                                                                                       SCOP domains
               CATH domains 1b3oB00 B:10-499 Aldolase class I                                                                                                                                                                                                                                                                                                                                                                                                                                                                          CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..........hhhhh..........eee........hhh................eee.........hhhhhhhh............hhhhhhhhhhhhhh...................----------....................------------------................hhhhhhhhh......eee........eee........................eeee...hhhhhhhhhhhhh...eeee.......hhhhhhhhhhhhh....eeeeeee..hhhhhhhhhh....eee...................hhhhhhhhhhhhhhh...eeee.....hhhhhhhhh....eeee.hhhh.........------------------------------------------------....hhhhhhhhhhhhhhhhhhh....hhhhhhhhhh....eee....... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------F-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------CBS  PDB: B:114-159 UniProt: 114-173                        -----CBS  PDB: B:179-237 UniProt: 179-237                       -----------------------------------------------------------------------------------IMP_DH_GMP_RE---------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.1c  PDB: B:10-33 ----------------Exon 1.2c  PDB: B:50-83           Exon 1.3a  PDB: B:84-108 Exon 1.3g  PDB: B:109-159 (gaps) UniProt: 109-177 [INCOMPLETE]       Exon 1.4a  PDB: B:178-207     ------------------------------------------------------------------Exon 1.5b  PDB: B:274-304      -------------------------------Exon 1.8b  PDB: B:336-384 UniProt: 336-384       -----------------------------------------------Exon 1.9e  PDB: B:449-480 UniProt: 432-480       ------------------- Transcript 1 (1)
           Transcript 1 (2) -----------------------Exon 1.2a        -------------------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.4c  PDB: B:207-273 UniProt: 207-273                         ------------------------------Exon 1.6  PDB: B:304-336         -----------------------------------------------Exon 1.9a  PDB: B:384-400 UniProt: 384-432       -----------------------------------------------Exon 1.9h            Transcript 1 (2)
                 1b3o B  10 TSYVPDDGLTAQQLFNCGDGLTYNDFLILPGYIDFTADQVDLTSALTKKITLKTPLVSSPMDTVTEAGMAIAMALTGGIGFIHHNCTPEFQANEVRKVKKYEQGFITDPVVLSPKDRVRD----------CGIPITDTGRMGSRLVGIIS------------------IMTKREDLVVAPAGITLKEANEILQRSKKGKLPIVNEDDELVAIIARTDLKKNRDYPLASKDAKKQLLCGAAIGTHEDDKYRLDLLAQAGVDVVVLDSSQGNSIFQINMIKYIKDKYPNLQVIGGNVVTAAQAKNLIDAGVDALRVGMGSGSICITQEVLACGRPQATAVYKVSEYARRFGVPVIADGGIQNVGHIAKALALGASTVMMGSLLAATTEAPGEY------------------------------------------------DKGSIHKFVPYLIAGIQHSCQDIGAKSLTQVRAMMYSGELKFEKRTSSAQV 499
                                    19        29        39        49        59        69        79        89        99       109       119       129         -|      149       159         -       179       189       199       209       219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369       379       389       399|        -         -         -         -       449       459       469       479       489       499
                                                                                                                                                 129        140                159                178                                                                                                                                                                                                                           400                                              449

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(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: Alpha-Beta Barrel (2994)

Topology: TIM Barrel (2806)

Homologous Superfamily: Aldolase class I (887)

Human (Homo sapiens) (78)

1a	1b3oA00	A:10-499
1b	1b3oB00	B:10-499

(no "Pfam Domain" information available for 1B3O)

Asymmetric Unit(hide GO term definitions)

Chain A,B (IMDH2_HUMAN | P12268)

molecular function
	GO:0003677	DNA binding	Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
	GO:0003938	IMP dehydrogenase activity	Catalysis of the reaction: inosine 5'-phosphate + NAD+ + H2O = xanthosine 5'-phosphate + NADH + H+.
	GO:0003723	RNA binding	Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
	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:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0000166	nucleotide binding	Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
	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:0006177	GMP biosynthetic process	The chemical reactions and pathways resulting in the formation of GMP, guanosine monophosphate.
	GO:0071353	cellular response to interleukin-4	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 an interleukin-4 stimulus.
	GO:0046651	lymphocyte proliferation	The expansion of a lymphocyte population by cell division.
	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:0006164	purine nucleotide biosynthetic process	The chemical reactions and pathways resulting in the formation of a purine nucleotide, a compound consisting of nucleoside (a purine base linked to a deoxyribose or ribose sugar) esterified with a phosphate group at either the 3' or 5'-hydroxyl group of the sugar.
	GO:0009168	purine ribonucleoside monophosphate biosynthetic process	The chemical reactions and pathways resulting in the formation of purine ribonucleoside monophosphate, a compound consisting of a purine base linked to a ribose sugar esterified with phosphate on the sugar.
	GO:0060041	retina development in camera-type eye	The process whose specific outcome is the progression of the retina over time, from its formation to the mature structure. The retina is the innermost layer or coating at the back of the eyeball, which is sensitive to light and in which the optic nerve terminates.
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:0070062	extracellular exosome	A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
	GO:0016020	membrane	A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
	GO:0005634	nucleus	A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
	GO:0005778	peroxisomal membrane	The lipid bilayer surrounding a peroxisome.

Asymmetric Unit
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	Cis Peptide Bonds
(no "Cis Peptide Bonds" information available for 1b3o)

Biological Units
	Complete Structure
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	1b3o
		Family and Domain Information	:	ProDom \| SYSTERS
		General Structural Information	:	GlycoscienceDB \| MMDB \| NDB \| OCA \| PDB \| PDBe \| PDBj \| PDBsum \| PDBWiki \| PQS \| PROTEOPEDIA
		Orientation in Membranes	:	OPM
		Protein Surface	:	SURFACE
		Secondary Structure	:	DSSP (structure derived) \| HSSP (homology derived)
		Structural Genomics	:	GeneCensus
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	IMDH2_HUMAN \| P12268
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	1.1.1.205
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	IMDH2_HUMAN \| P12268
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	IMDH2_HUMAN \| P12268	:	1nf7 1nfb

(no "Related Entries Specified in the PDB File" available for 1B3O)

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (3, 19)

Sites (4, 4)

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (1, 2)

PROSITE Motifs (2, 5)

Exons (13, 25)

Sequences/Alignments

Classification and Annotation

SCOP Domains (2, 3)

CATH Domains (1, 2)

Pfam Domains (0, 0)

Gene Ontology (22, 22)

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Still Images

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Databases

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Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File