2SAR - JenaLib

Title :   DETERMINATION AND RESTRAINED LEAST-SQUARES REFINEMENT OF THE CRYSTAL STRUCTURES OF RIBONUCLEASE SA AND ITS COMPLEX WITH 3'-GUANYLIC ACID AT 1.8 ANGSTROMS RESOLUTION

Authors :   J. Sevcik, E. J. Dodson, G. G. Dodson

Date :   13 Dec 90 (Deposition) - 15 Apr 92 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.80

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

Keywords :   Hydrolase (Endoribonuclease) (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   J. Sevcik, E. J. Dodson, G. G. Dodson
Determination And Restrained Least-Squares Refinement Of The Structures Of Ribonuclease Sa And Its Complex With 3'-Guanylic Acid At 1. 8 A Resolution.
Acta Crystallogr. , Sect. B V. 47 240 1991
PubMed-ID: 1654932 | Reference-DOI: 10.1107/S0108768190009569
(for further references see the PDB file header)

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 3)

Sites (5, 5)

Asymmetric Unit (5, 5)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	ALA A:62 , ARG A:63 , THR A:64 , ARG B:68	BINDING SITE FOR RESIDUE SO4 A 97
2	AC2	SOFTWARE	ALA B:62 , ARG B:63 , THR B:64 , HOH B:205	BINDING SITE FOR RESIDUE SO4 B 97
3	AC3	SOFTWARE	GLN A:32 , VAL A:35 , PHE A:37 , GLN A:38 , ASN A:39 , ARG A:40 , GLU A:41 , GLU A:54 , ARG A:65 , ARG A:69 , HIS A:85 , TYR A:86 , HOH A:164 , HOH A:211 , HOH A:212 , SER B:3 , GLY B:4 , THR B:5 , ALA B:10 , HOH B:122 , HOH B:131	BINDING SITE FOR RESIDUE 3GP A 98
4	CAA	UNKNOWN	GLN A:32 , PHE A:37 , GLU A:41 , GLU A:54 , ARG A:65 , HIS A:85 , TYR A:86	NULL
5	CAB	UNKNOWN	GLN B:32 , PHE B:37 , GLU B:41 , GLU B:54 , ARG B:65 , HIS B:85 , TYR B:86	NULL

SS Bonds (2, 2)

Cis Peptide Bonds (2, 2)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (0, 0)

Exons (0, 0)

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
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Chain A from PDB  Type:PROTEIN  Length:96
 aligned with RNSA_STRAU | P05798 from UniProtKB/Swiss-Prot  Length:96

    Alignment length:96
                                    10        20        30        40        50        60        70        80        90      
            RNSA_STRAU    1 DVSGTVCLSALPPEATDTLNLIASDGPFPYSQDGVVFQNRESVLPTQSYGYYHEYTVITPGARTRGTRRIITGEATQEDYYTGDHYATFSLIDQTC 96
               SCOP domains d2sara_ A: RNase Sa                                                                              SCOP domains
               CATH domains 2sarA00 A:1-96  [code=3.10.450.30, no name defined]                                              CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ......hhhhh.hhhhhhhhhhhhh.........................eeeeeee..........eeeeeee...eeeee.............. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------ Transcript
                  2sar A  1 DVSGTVCLSALPPEATDTLNLIASDGPFPYSQDGVVFQNRESVLPTQSYGYYHEYTVITPGARTRGTRRIICGEATQEDYYTGDHYATFSLIDQTC 96
                                    10        20        30        40        50        60        70        80        90

Chain B from PDB  Type:PROTEIN  Length:96
 aligned with RNSA_STRAU | P05798 from UniProtKB/Swiss-Prot  Length:96

    Alignment length:96
                                    10        20        30        40        50        60        70        80        90      
            RNSA_STRAU    1 DVSGTVCLSALPPEATDTLNLIASDGPFPYSQDGVVFQNRESVLPTQSYGYYHEYTVITPGARTRGTRRIITGEATQEDYYTGDHYATFSLIDQTC 96
               SCOP domains d2sarb_ B: RNase Sa                                                                              SCOP domains
               CATH domains 2sarB00 B:1-96  [code=3.10.450.30, no name defined]                                              CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ......hhhhh.hhhhhhhhhhhhh.........................eeeeeee..........eeeeeee...eeeee.............. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------ Transcript
                  2sar B  1 DVSGTVCLSALPPEATDTLNLIASDGPFPYSQDGVVFQNRESVLPTQSYGYYHEYTVITPGARTRGTRRIICGEATQEDYYTGDHYATFSLIDQTC 96
                                    10        20        30        40        50        60        70        80        90

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	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 (1, 2)

CATH Domains (1, 2)

Pfam Domains (0, 0)

Gene Ontology (11, 11)

Asymmetric Unit(hide GO term definitions)

Chain A,B (RNSA_STRAU | P05798)

molecular function
	GO:0003723	RNA binding	Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
	GO:0004519	endonuclease activity	Catalysis of the hydrolysis of ester linkages within nucleic acids by creating internal breaks.
	GO:0004521	endoribonuclease activity	Catalysis of the hydrolysis of ester linkages within ribonucleic acid by creating internal breaks.
	GO:0016787	hydrolase activity	Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
	GO:0004518	nuclease activity	Catalysis of the hydrolysis of ester linkages within nucleic acids.
	GO:0046589	ribonuclease T1 activity	Catalysis of the endonucleolytic cleavage to nucleoside 3'-phosphates and 3'-phosphooligonucleotides ending in Gp with 2',3'-cyclic phosphate intermediates.
	GO:0004540	ribonuclease activity	Catalysis of the hydrolysis of phosphodiester bonds in chains of RNA.
biological process
	GO:0090501	RNA phosphodiester bond hydrolysis	The RNA metabolic process in which the phosphodiester bonds between ribonucleotides are cleaved by hydrolysis.
	GO:0090502	RNA phosphodiester bond hydrolysis, endonucleolytic	The chemical reactions and pathways involving the hydrolysis of internal 3',5'-phosphodiester bonds in one or two strands of ribonucleotides.
	GO:0090305	nucleic acid phosphodiester bond hydrolysis	The nucleic acid metabolic process in which the phosphodiester bonds between nucleotides are cleaved by hydrolysis.
cellular component
	GO:0005576	extracellular region	The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

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