Structure of PDB 5bir Chain B

Receptor sequence
>5birB (length=104) Species: 5062 (Aspergillus oryzae) [Search protein sequence]
ACDYTCGSNCYSSSDVSTAQAAGYKLHEDGETVGSNSYPHKYNNYEGFDF
SVSSPYYEWPILSSGDVYSGGSPGADRVVFNENNQLAGVITQTGASGNNF
VECT
3D structure
PDB5bir Dissecting histidine interactions of ribonuclease T1 with asparagine and glutamine replacements: analysis of double mutant cycles at one position.
ChainB
Resolution2.0 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) Y38 H40 E58 D76 R77 T91 Q92 F100
Catalytic site (residue number reindexed from 1) Y38 H40 E58 D76 R77 T91 Q92 F100
Enzyme Commision number 4.6.1.24: ribonuclease T1.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 CA B G47 D49 G47 D49
BS02 2GP B Y38 H40 Y42 N43 N44 Y45 E46 E58 N98 F100 Y38 H40 Y42 N43 N44 Y45 E46 E58 N98 F100 MOAD: Kd=255uM
Gene Ontology
Molecular Function
GO:0003723 RNA binding
GO:0004519 endonuclease activity
GO:0004521 RNA endonuclease activity
GO:0004540 RNA nuclease activity
GO:0016829 lyase activity
GO:0046589 ribonuclease T1 activity
Biological Process
GO:0008150 biological_process
Cellular Component
GO:0001411 hyphal tip
GO:0030428 cell septum

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:5bir, PDBe:5bir, PDBj:5bir
PDBsum5bir
PubMed9466938
UniProtP00651|RNT1_ASPOR Guanyl-specific ribonuclease T1 (Gene Name=rntA)

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