Structure of PDB 3r1r Chain B

Receptor sequence
>3r1rB (length=733) Species: 562 (Escherichia coli) [Search protein sequence]
LLVTKRDGSTERINLDKIHRVLDWAAEGLHNVSISQVELRSHIQFYDGIK
TSDIHETIIKAAADLISRDAPDYQYLAARLAIFHLRKKAYGQFEPPALYD
HVVKMVEMGKYDNHLLEDYTEEEFKQMDTFIDHDRDMTFSYAAVKQLEGK
YLVQNRVTGEIYESAQFLYILVAACLFSNYPRETRLQYVKRFYDAVSTFK
ISLPTPIMSGVRTPTRQFSSCVLIECGDSLDSINATSSAIVKYVSQRAGI
GINAGRIRALGSPIRGGEAFHTGCIPFYKHFQTAVKSCSQGGVRGGAATL
FYPMWHLEVESLLVLKNNRGVEGNRVRHMDYGVQINKLMYTRLLKGEDIT
LFSPSDVPGLYDAFFADQEEFERLYTKYEKDDSIRKQRVKAVELFSLMMQ
ERASTGRIYIQNVDHCNTHSPFDPAIAPVRQSNLCLEIALPTKPLNDVND
ENGEIALCTLSAFNLGAINNLDELEELAILAVRALDALLDYQDYPIPAAK
RGAMGRRTLGIGVINFAYYLAKHGKRYSDGSANNLTHKTFEAIQYYLLKA
SNELAKEQGACPWFNETTYAKGILPIDTYKKDLDTIANEPLHYDWEALRE
SIKTHGLRNSTLSALMPSETSSQISNATNGIEPPRGYVSIKASKDGILRQ
VVPDYEHLHDAYELLWEMPGNDGYLQLVGIMQKFIDQSISANTNYDPSRF
PSGKVPMQQLLKDLLTAYKFGVKTLYYQNTRDG
3D structure
PDB3r1r Binding of allosteric effectors to ribonucleotide reductase protein R1: reduction of active-site cysteines promotes substrate binding.
ChainB
Resolution3.0 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) C225 N437 C439 E441 C462 Y730 Y731
Catalytic site (residue number reindexed from 1) C221 N433 C435 E437 C458 Y726 Y727
Enzyme Commision number 1.17.4.1: ribonucleoside-diphosphate reductase.
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 peptide B K341 L348 K584 M711 Q712 L719 K723 K337 L344 K580 M707 Q708 L715 K719
BS02 ATP B K9 I17 N18 K21 I22 T55 H59 K91 K5 I13 N14 K17 I18 T51 H55 K87
Gene Ontology
Molecular Function
GO:0004748 ribonucleoside-diphosphate reductase activity, thioredoxin disulfide as acceptor
GO:0005515 protein binding
GO:0005524 ATP binding
GO:0016491 oxidoreductase activity
GO:0042802 identical protein binding
GO:0044183 protein folding chaperone
Biological Process
GO:0006457 protein folding
GO:0009185 ribonucleoside diphosphate metabolic process
GO:0009263 deoxyribonucleotide biosynthetic process
GO:0009265 2'-deoxyribonucleotide biosynthetic process
GO:0015949 nucleobase-containing small molecule interconversion
Cellular Component
GO:0005829 cytosol
GO:0005971 ribonucleoside-diphosphate reductase complex

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Molecular Function

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Biological Process

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Cellular Component
External links
PDB RCSB:3r1r, PDBe:3r1r, PDBj:3r1r
PDBsum3r1r
PubMed9309223
UniProtP00452|RIR1_ECOLI Ribonucleoside-diphosphate reductase 1 subunit alpha (Gene Name=nrdA)

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