1QMI - JenaLib

Asymmetric Unit (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF RNA 3'-TERMINAL PHOSPHATE CYCLASE, AN UBIQUITOUS ENZYME WITH UNUSUAL TOPOLOGY

Authors :   G. J. Palm, E. Billy, W. Filipowicz, A. Wlodawer

Date :   28 Sep 99 (Deposition) - 11 Jan 00 (Release) - 17 Apr 13 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.80

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

Keywords :   Ligase, 2'3'Cyclic Phosphate Rna (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   G. J. Palm, E. Billy, W. Filipowicz, A. Wlodawer
Crystal Structure Of Rna 3'-Terminal Phosphate Cyclase, A Ubiquitous Enzyme With Unusual Topology
Structure V. 8 13 2000
PubMed-ID: 10673421 | Reference-DOI: 10.1016/S0969-2126(00)00076-9

Molecule 1 - RNA 3'-TERMINAL PHOSPHATE CYCLASE
	Cellular Location	:	CYTOPLASM
	Chains	:	A, B, C, D
	EC Number	:	6.5.1.4
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Cellular Location	:	CYTOPLASM
	Expression System Gene	:	RTCA
	Expression System Plasmid	:	PET11D_ECOLI CYCLASE
	Expression System Strain	:	B834(DE3)
	Expression System Taxid	:	562
	Expression System Vector	:	PET-11D
	Expression System Vector Type	:	PLASMID
	Gene	:	RTCA
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	83333
	Strain	:	K-12
	Synonym	:	RNA CYCLASE, RNA-3'-PHOSPHATE CYCLASE

		1	2	3	4
Asymmetric Unit	:	A	B	C	D
Biological Unit 1 (1x)	:	A	B
Biological Unit 2 (1x)	:			C	D

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (1, 16)

No.	Name	Count	Type	Full Name
1	MSE	16	Mod. Amino Acid	SELENOMETHIONINE

Biological Unit 1 (1, 8)

No.	Name	Count	Type	Full Name
1	MSE	8	Mod. Amino Acid	SELENOMETHIONINE

Biological Unit 2 (1, 8)

No.	Name	Count	Type	Full Name
1	MSE	8	Mod. Amino Acid	SELENOMETHIONINE

(no "Site" information available for 1QMI)

Asymmetric Unit

No.	Residues
1	A:308	-	B:308
2	C:308	-	D:308

Asymmetric Unit

No.	Residues
1	Tyr A:161	-	Pro A:162
2	Tyr B:161	-	Pro B:162
3	Tyr C:161	-	Pro C:162
4	Tyr D:161	-	Pro D:162

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

Asymmetric Unit (1, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	RTC	PS01287	RNA 3'-terminal phosphate cyclase signature.	RTCA_ECOLI	157-167	4	A:158-168 B:158-168 C:158-168 D:158-168

Biological Unit 1 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	RTC	PS01287	RNA 3'-terminal phosphate cyclase signature.	RTCA_ECOLI	157-167	2	A:158-168 B:158-168 - -

Biological Unit 2 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	RTC	PS01287	RNA 3'-terminal phosphate cyclase signature.	RTCA_ECOLI	157-167	2	- - C:158-168 D:158-168

(no "Exon" information available for 1QMI)

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:335
 aligned with RTCA_ECOLI | P46849 from UniProtKB/Swiss-Prot  Length:338

    Alignment length:335
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333     
           RTCA_ECOLI     4 MIALDGAQGEGGGQILRSALSLSMITGQPFTITSIRAGRAKPGLLRQHLTAVKAATEICGATVEGAELGSQRLLFRPGTVRGGDYRFAIGSAGSCTLVLQTVLPALWFADGPSRVEVSGGTDNPSAPPADFIRRVLEPLLAKIGIHQQTTLLRHGFYPAGGGVVATEVSPVASFNTLQLGERGNIVQMRGEVLLAGVPRHVAEREIATLAGSFSLHEQNIHNLPRDQGPGNTVSLEVESENITERFFVVGEKRVSAEVVAAQLVKEVKRYLASTAAVGEYLADQLVLPMALAGAGEFTVAHPSCHLLTNIAVVERFLPVRFSLIETDGVTRVSIE 338
               SCOP domains d1qmia2 A:5-184,A:280-339 RNA 3'-terminal phosphate cyclase, RPTC                                                                                                                   d1qmia1 A:185-279 RNA 3'-terminal phosphate cyclase, RPTC, insert domain                       d1qmia2 A:5-184,A:280-339                                    SCOP domains
               CATH domains -1qmiA01 A:6-182,A:277-336  [code=3.65.10.20, no name defined]                                                                                                                    ---1qmiA02 A:186-276  [code=3.30.360.20, no name defined]                                     1qmiA01 A:6-182,A:277-336                                   --- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ............hhhhhhhhhhhhhhh..eee............hhhhhhhhhhhhhhh..eee........eeee.......eeeee.....hhhhhhhhhhhhhhhh...eeeeeee........hhhhhhhhhhhhhhhh..eeeeeeee........eeeeeeee....................eeeeee..hhhhhhhhhhhhhhhh....eeeeeehhhhh.eeeeeeeee....eeeeeee.....hhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhh...eeee...hhhhhhhhhhhhhhh...eeeee....eeeee. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------RTC        --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1qmi A   5 mIALDGAQGEGGGQILRSALSLSmITGQPFTITSIRAGRAKPGLLRQHLTAVKAATEICGATVEGAELGSQRLLFRPGTVRGGDYRFAIGSAGSCTLVLQTVLPALWFADGPSRVEVSGGTDNPSAPPADFIRRVLEPLLAKIGIHQQTTLLRHGFYPAGGGVVATEVSPVASFNTLQLGERGNIVQmRGEVLLAGVPRHVAEREIATLAGSFSLHEQNIHNLPRDQGPGNTVSLEVESENITERFFVVGEKRVSAEVVAAQLVKEVKRYLASTAAVGEYLADQLVLPmALAGAGEFTVAHPSCHLLTNIAVVERFLPVRFSLIETDGVTRVSIE 339
                            |       14        24   |    34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334     
                            |                     28-MSE                                                                                                                                                             192-MSE                                                                                              293-MSE                                          
                            5-MSE

Chain B from PDB  Type:PROTEIN  Length:335
 aligned with RTCA_ECOLI | P46849 from UniProtKB/Swiss-Prot  Length:338

    Alignment length:335
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333     
           RTCA_ECOLI     4 MIALDGAQGEGGGQILRSALSLSMITGQPFTITSIRAGRAKPGLLRQHLTAVKAATEICGATVEGAELGSQRLLFRPGTVRGGDYRFAIGSAGSCTLVLQTVLPALWFADGPSRVEVSGGTDNPSAPPADFIRRVLEPLLAKIGIHQQTTLLRHGFYPAGGGVVATEVSPVASFNTLQLGERGNIVQMRGEVLLAGVPRHVAEREIATLAGSFSLHEQNIHNLPRDQGPGNTVSLEVESENITERFFVVGEKRVSAEVVAAQLVKEVKRYLASTAAVGEYLADQLVLPMALAGAGEFTVAHPSCHLLTNIAVVERFLPVRFSLIETDGVTRVSIE 338
               SCOP domains d1qmib2 B:5-184,B:280-339 RNA 3'-terminal phosphate cyclase, RPTC                                                                                                                   d1qmib1 B:185-279 RNA 3'-terminal phosphate cyclase, RPTC, insert domain                       d1qmib2 B:5-184,B:280-339                                    SCOP domains
               CATH domains -1qmiB01 B:6-182,B:277-336  [code=3.65.10.20, no name defined]                                                                                                                    ---1qmiB02 B:186-276  [code=3.30.360.20, no name defined]                                     1qmiB01 B:6-182,B:277-336                                   --- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ............hhhhhhhhhhhhhhh..eee............hhhhhhhhhhhhhhh..eee........eeee.......eee.......hhhhhhhhhhhhh......eeeeeee.........hhhhhhhhhhhhhhh..eeeeeeee........eeeeeeee....................eeeeee...hhhhhhhhhhhhhhh....eeeeeehhhhh.eeeeeeeee....eeeeeee.....hhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhh..eeee...hhhhhhhhhhhhhhh...eeeee....eeeee. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------RTC        --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1qmi B   5 mIALDGAQGEGGGQILRSALSLSmITGQPFTITSIRAGRAKPGLLRQHLTAVKAATEICGATVEGAELGSQRLLFRPGTVRGGDYRFAIGSAGSCTLVLQTVLPALWFADGPSRVEVSGGTDNPSAPPADFIRRVLEPLLAKIGIHQQTTLLRHGFYPAGGGVVATEVSPVASFNTLQLGERGNIVQmRGEVLLAGVPRHVAEREIATLAGSFSLHEQNIHNLPRDQGPGNTVSLEVESENITERFFVVGEKRVSAEVVAAQLVKEVKRYLASTAAVGEYLADQLVLPmALAGAGEFTVAHPSCHLLTNIAVVERFLPVRFSLIETDGVTRVSIE 339
                            |       14        24   |    34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334     
                            5-MSE                 28-MSE                                                                                                                                                             192-MSE                                                                                              293-MSE

Chain C from PDB  Type:PROTEIN  Length:335
 aligned with RTCA_ECOLI | P46849 from UniProtKB/Swiss-Prot  Length:338

    Alignment length:335
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333     
           RTCA_ECOLI     4 MIALDGAQGEGGGQILRSALSLSMITGQPFTITSIRAGRAKPGLLRQHLTAVKAATEICGATVEGAELGSQRLLFRPGTVRGGDYRFAIGSAGSCTLVLQTVLPALWFADGPSRVEVSGGTDNPSAPPADFIRRVLEPLLAKIGIHQQTTLLRHGFYPAGGGVVATEVSPVASFNTLQLGERGNIVQMRGEVLLAGVPRHVAEREIATLAGSFSLHEQNIHNLPRDQGPGNTVSLEVESENITERFFVVGEKRVSAEVVAAQLVKEVKRYLASTAAVGEYLADQLVLPMALAGAGEFTVAHPSCHLLTNIAVVERFLPVRFSLIETDGVTRVSIE 338
               SCOP domains d1qmic2 C:5-184,C:280-339 RNA 3'-terminal phosphate cyclase, RPTC                                                                                                                   d1qmic1 C:185-279 RNA 3'-terminal phosphate cyclase, RPTC, insert domain                       d1qmic2 C:5-184,C:280-339                                    SCOP domains
               CATH domains -1qmiC01 C:6-182,C:277-336  [code=3.65.10.20, no name defined]                                                                                                                    ---1qmiC02 C:186-276  [code=3.30.360.20, no name defined]                                     1qmiC01 C:6-182,C:277-336                                   --- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ............hhhhhhhhhhhhhhh..eee............hhhhhhhhhhhhhhh..eee........eeee......eeeeee.....hhhhhhhhhhhhhhh....eeeeeee.........hhhhhhhhhhhhhhh..eeeeeeee........eeeeeeee....................eeeeee..hhhhhhhhhhhhhhhh....eeeeeehhhhh.eeeeeeeee....eeeeeee.....hhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhh...eeee...hhhhhhhhhhhhhhh...eeeee....eeeee. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------RTC        --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1qmi C   5 mIALDGAQGEGGGQILRSALSLSmITGQPFTITSIRAGRAKPGLLRQHLTAVKAATEICGATVEGAELGSQRLLFRPGTVRGGDYRFAIGSAGSCTLVLQTVLPALWFADGPSRVEVSGGTDNPSAPPADFIRRVLEPLLAKIGIHQQTTLLRHGFYPAGGGVVATEVSPVASFNTLQLGERGNIVQmRGEVLLAGVPRHVAEREIATLAGSFSLHEQNIHNLPRDQGPGNTVSLEVESENITERFFVVGEKRVSAEVVAAQLVKEVKRYLASTAAVGEYLADQLVLPmALAGAGEFTVAHPSCHLLTNIAVVERFLPVRFSLIETDGVTRVSIE 339
                            |       14        24   |    34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334     
                            5-MSE                 28-MSE                                                                                                                                                             192-MSE                                                                                              293-MSE

Chain D from PDB  Type:PROTEIN  Length:335
 aligned with RTCA_ECOLI | P46849 from UniProtKB/Swiss-Prot  Length:338

    Alignment length:335
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333     
           RTCA_ECOLI     4 MIALDGAQGEGGGQILRSALSLSMITGQPFTITSIRAGRAKPGLLRQHLTAVKAATEICGATVEGAELGSQRLLFRPGTVRGGDYRFAIGSAGSCTLVLQTVLPALWFADGPSRVEVSGGTDNPSAPPADFIRRVLEPLLAKIGIHQQTTLLRHGFYPAGGGVVATEVSPVASFNTLQLGERGNIVQMRGEVLLAGVPRHVAEREIATLAGSFSLHEQNIHNLPRDQGPGNTVSLEVESENITERFFVVGEKRVSAEVVAAQLVKEVKRYLASTAAVGEYLADQLVLPMALAGAGEFTVAHPSCHLLTNIAVVERFLPVRFSLIETDGVTRVSIE 338
               SCOP domains d1qmid2 D:5-184,D:280-339 RNA 3'-terminal phosphate cyclase, RPTC                                                                                                                   d1qmid1 D:185-279 RNA 3'-terminal phosphate cyclase, RPTC, insert domain                       d1qmid2 D:5-184,D:280-339                                    SCOP domains
               CATH domains -1qmiD01 D:6-182,D:277-336  [code=3.65.10.20, no name defined]                                                                                                                    ---1qmiD02 D:186-276  [code=3.30.360.20, no name defined]                                     1qmiD01 D:6-182,D:277-336                                   --- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ............hhhhhhhhhhhhhhh..eee............hhhhhhhhhhhhhhh..eee........eeee.................hhhhhhhhhhhhhh.....eeeeeee.........hhhhhhhhhhhhhhh..eeeeeeee........eeeeeeee....................eeeeee....hhhhhhhhhhhh......eeeeeehhhhh.eeeeeeeee....eeeeeee.....hhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhh..eeee...hhhhhhhhhhhhhhh...eeeee....eeeee. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------RTC        --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1qmi D   5 mIALDGAQGEGGGQILRSALSLSmITGQPFTITSIRAGRAKPGLLRQHLTAVKAATEICGATVEGAELGSQRLLFRPGTVRGGDYRFAIGSAGSCTLVLQTVLPALWFADGPSRVEVSGGTDNPSAPPADFIRRVLEPLLAKIGIHQQTTLLRHGFYPAGGGVVATEVSPVASFNTLQLGERGNIVQmRGEVLLAGVPRHVAEREIATLAGSFSLHEQNIHNLPRDQGPGNTVSLEVESENITERFFVVGEKRVSAEVVAAQLVKEVKRYLASTAAVGEYLADQLVLPmALAGAGEFTVAHPSCHLLTNIAVVERFLPVRFSLIETDGVTRVSIE 339
                            |       14        24   |    34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334     
                            5-MSE                 28-MSE                                                                                                                                                             192-MSE                                                                                              293-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 '\|'

Asymmetric Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: Alpha and beta proteins (a+b) (23004)

Fold: IF3-like (127)

Superfamily: EPT/RTPC-like (82)

Family: RNA 3'-terminal phosphate cyclase, RPTC (2)

Protein domain: RNA 3'-terminal phosphate cyclase, RPTC (2)

Escherichia coli [TaxId: 562] (2)

1a	d1qmia2	A:5-184,A:280-339
1b	d1qmib2	B:5-184,B:280-339
1c	d1qmic2	C:5-184,C:280-339
1d	d1qmid2	D:5-184,D:280-339

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

Fold: Thioredoxin fold (994)

Superfamily: RNA 3'-terminal phosphate cyclase, RPTC, insert domain (2)

Family: RNA 3'-terminal phosphate cyclase, RPTC, insert domain (2)

Protein domain: RNA 3'-terminal phosphate cyclase, RPTC, insert domain (2)

Escherichia coli [TaxId: 562] (2)

2a	d1qmia1	A:185-279
2b	d1qmib1	B:185-279
2c	d1qmic1	C:185-279
2d	d1qmid1	D:185-279

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 2-Layer Sandwich (8480)

Topology: Dihydrodipicolinate Reductase; domain 2 (182)

Homologous Superfamily: [code=3.30.360.20, no name defined] (3)

Escherichia coli. Organism_taxid: 83333. Strain: k12. (2)

1a	1qmiA02	A:186-276
1b	1qmiB02	B:186-276
1c	1qmiC02	C:186-276
1d	1qmiD02	D:186-276

Architecture: Alpha-beta prism (50)

Topology: UDP-n-acetylglucosamine1-carboxyvinyl-transferase; Chain (50)

Homologous Superfamily: [code=3.65.10.20, no name defined] (3)

Escherichia coli. Organism_taxid: 83333. Strain: k12. (2)

2a	1qmiA01	A:6-182,A:277-336
2b	1qmiB01	B:6-182,B:277-336
2c	1qmiC01	C:6-182,C:277-336
2d	1qmiD01	D:6-182,D:277-336

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

Asymmetric Unit(hide GO term definitions)

Chain A,B,C,D (RTCA_ECOLI | P46849)

molecular function
	GO:0005524	ATP binding	Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
	GO:0003723	RNA binding	Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
	GO:0003963	RNA-3'-phosphate cyclase activity	Catalysis of the reaction: ATP + RNA 3'-terminal-phosphate = AMP + diphosphate + RNA terminal-2',3'-cyclic-phosphate.
	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:0016874	ligase activity	Catalysis of the joining of two substances, or two groups within a single molecule, with the concomitant hydrolysis of the diphosphate bond in ATP or a similar triphosphate.
	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.
biological process
	GO:0006396	RNA processing	Any process involved in the conversion of one or more primary RNA transcripts into one or more mature RNA molecules.
cellular component
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

Asymmetric Unit
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	Ligands, Modified Residues, Ions
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	Sites
(no "Sites" information available for 1qmi)

	Cis Peptide Bonds
		Tyr A:161 - Pro A:162	[ RasMol ]
		Tyr B:161 - Pro B:162	[ RasMol ]
		Tyr C:161 - Pro C:162	[ RasMol ]
		Tyr D:161 - Pro D:162	[ RasMol ]

Biological Units
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Access by PDB/NDB ID
	1qmi
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	RTCA_ECOLI \| P46849
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	6.5.1.4
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	RTCA_ECOLI \| P46849
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UniProtKB/Swiss-Prot
	RTCA_ECOLI \| P46849	:	1qmh 3kgd 3tut 3tux 3tv1 3tw3

1qmh	CRYSTAL STRUCTURE OF RNA 3'-TERMINAL PHOSPHATE CYCLASE, AN UBIQUITOUS ENZYME WITH UNUSUAL TOPOLOGY

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 16)

Sites (0, 0)

SS Bonds (2, 2)

Cis Peptide Bonds (4, 4)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (1, 4)

Exons (0, 0)

Sequences/Alignments

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SCOP Domains (2, 8)

CATH Domains (2, 8)

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Gene Ontology (8, 8)

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