Structure of PDB 1tq9 Chain B

Receptor sequence
>1tq9B (length=124) Species: 9913 (Bos taurus) [Search protein sequence]
KESAAAKFERQHMDSGNSPSSSSNYCNLMMCCRKMTQGKCKPVNTFVHES
LADVKAVCSQKKVTCKNGQTNCYQSKSTMRITDCRETGSSKYPNCAYKTT
QVEKHIIVACGGKPSVPVHFDASV
3D structure
PDB1tq9 Structure and Stability of the Non-covalent Swapped Dimer of Bovine Seminal Ribonuclease: AN ENZYME TAILORED TO EVADE RIBONUCLEASE PROTEIN INHIBITOR
ChainB
Resolution2.0 Å
3D
structure
Catalytic site residues are labeled in the structure
[Spin on]
[Spin off]
[Reset orientation]

[High quality]
[Low quality]

[White background]
[Black background]

[Download]
[Download structure with residue number starting from 1]
Enzymatic activity
Catalytic site (original residue number in PDB) H12 K41 H119 F120 D121
Catalytic site (residue number reindexed from 1) H12 K41 H119 F120 D121
Enzyme Commision number 4.6.1.18: pancreatic ribonuclease.
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 CPA B K41 N44 T45 Q69 N71 A109 H119 F120 K41 N44 T45 Q69 N71 A109 H119 F120
Gene Ontology
Molecular Function
GO:0003676 nucleic acid binding
GO:0004519 endonuclease activity
GO:0004522 ribonuclease A activity
GO:0004540 RNA nuclease activity
GO:0016829 lyase activity
GO:0042802 identical protein binding
Biological Process
GO:0050830 defense response to Gram-positive bacterium
GO:0051607 defense response to virus
Cellular Component
GO:0005576 extracellular region

View graph for
Molecular Function

View graph for
Biological Process

View graph for
Cellular Component
External links
PDB RCSB:1tq9, PDBe:1tq9, PDBj:1tq9
PDBsum1tq9
PubMed15192098
UniProtP00669|RNS_BOVIN Seminal ribonuclease (Gene Name=SRN)

[Back to BioLiP]