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Protein

Antitermination protein Q

Gene

Q

Organism
Enterobacteria phage lambda (Bacteriophage lambda)
Status
Reviewed-Annotation score: Annotation score: 2 out of 5-Experimental evidence at protein leveli

Functioni

Positively regulates expression of the phage early and late gene operons. Bacterial host RNA polymerase modified by antitermination proteins transcribes through termination sites that otherwise prevent expression of the regulated genes.

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
DNA bindingi81 – 99Sequence analysisAdd BLAST19

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Biological processi

Transcription, Transcription regulation, Transcription termination

Keywords - Ligandi

DNA-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Antitermination protein Q
Gene namesi
Name:Q
OrganismiEnterobacteria phage lambda (Bacteriophage lambda)
Taxonomic identifieri10710 [NCBI]
Taxonomic lineageiVirusesdsDNA viruses, no RNA stageCaudoviralesSiphoviridaeLambdalikevirus
Virus hostiEscherichia coli [TaxID: 562]
Proteomesi
  • UP000001711 Componenti: Genome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000738951 – 207Antitermination protein QAdd BLAST207

Interactioni

Protein-protein interaction databases

IntActiP03047. 9 interactors.

Structurei

Secondary structure

1207
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi63 – 77Combined sources15
Helixi78 – 80Combined sources3
Helixi82 – 85Combined sources4
Helixi89 – 112Combined sources24
Turni119 – 123Combined sources5
Beta strandi126 – 128Combined sources3
Helixi130 – 136Combined sources7
Beta strandi141 – 143Combined sources3
Turni145 – 149Combined sources5
Helixi157 – 167Combined sources11
Helixi173 – 179Combined sources7
Helixi181 – 202Combined sources22

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
4MO1X-ray2.10A/B38-207[»]
SMRiP03047.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Family and domain databases

InterProiIPR003222. Antitermntn.
IPR001305. HSP_DnaJ_Cys-rich_dom.
[Graphical view]
PfamiPF03589. Antiterm. 2 hits.
[Graphical view]
SUPFAMiSSF57938. SSF57938. 1 hit.

Sequencei

Sequence statusi: Complete.

P03047-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MRLESVAKFH SPKSPMMSDS PRATASDSLS GTDVMAAMGM AQSQAGFGMA
60 70 80 90 100
AFCGKHELSQ NDKQKAINYL MQFAHKVSGK YRGVAKLEGN TKAKVLQVLA
110 120 130 140 150
TFAYADYCRS AATPGARCRD CHGTGRAVDI AKTELWGRVV EKECGRCKGV
160 170 180 190 200
GYSRMPASAA YRAVTMLIPN LTQPTWSRTV KPLYDALVVQ CHKEESIADN

ILNAVTR
Length:207
Mass (Da):22,473
Last modified:July 21, 1986 - v1
Checksum:i12D4D3AF93DBACDB
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti102 – 103FA → LP in AAA32253 (PubMed:6458514).Curated2
Sequence conflicti111A → G in AAA32253 (PubMed:6458514).Curated1
Sequence conflicti205V → I (PubMed:6458514).Curated1
Sequence conflicti205V → I (Ref. 3) Curated1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
J02459 Genomic DNA. Translation: AAA96595.1.
M38285 Genomic DNA. Translation: AAA32253.1.
PIRiE94614. ZQBPL.
RefSeqiNP_040642.1. NC_001416.1.

Genome annotation databases

GeneIDi2703477.
KEGGivg:2703477.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
J02459 Genomic DNA. Translation: AAA96595.1.
M38285 Genomic DNA. Translation: AAA32253.1.
PIRiE94614. ZQBPL.
RefSeqiNP_040642.1. NC_001416.1.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
4MO1X-ray2.10A/B38-207[»]
SMRiP03047.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

IntActiP03047. 9 interactors.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi2703477.
KEGGivg:2703477.

Family and domain databases

InterProiIPR003222. Antitermntn.
IPR001305. HSP_DnaJ_Cys-rich_dom.
[Graphical view]
PfamiPF03589. Antiterm. 2 hits.
[Graphical view]
SUPFAMiSSF57938. SSF57938. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiREGQ_LAMBD
AccessioniPrimary (citable) accession number: P03047
Secondary accession number(s): Q38271
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 21, 1986
Last sequence update: July 21, 1986
Last modified: November 2, 2016
This is version 80 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programViral Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.