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Protein

Lantibiotic nukacin

Gene

nukA

Organism
Staphylococcus warneri
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Lanthionine-containing peptide antibiotic (lantibiotic) active on Gram-positive bacteria, such as Lactobacillus sakei, Leuconostoc mesenteroides and Pediococcus pentosaceus. The bactericidal activity of lantibiotics is based on depolarization of energized bacterial cytoplasmic membranes, initiated by the formation of aqueous transmembrane pores.3 Publications

Caution

It is uncertain whether Met-1 or Met-7 is the initiator.Curated

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionAntibiotic, Antimicrobial, Bacteriocin, Lantibiotic

Protein family/group databases

TCDBi1.C.21.1.5 the lacticin 481 (lacticin 481) family

Names & Taxonomyi

Protein namesi
Recommended name:
Lantibiotic nukacin
Alternative name(s):
Bacteriocin ISK-1
Gene namesi
Name:nukA
Encoded oniPlasmid pPI-10 Publication
OrganismiStaphylococcus warneri
Taxonomic identifieri1292 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliBacillalesStaphylococcaceaeStaphylococcus

Subcellular locationi

GO - Cellular componenti

Keywords - Cellular componenti

Secreted

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
PropeptideiPRO_00003070941 – 302 PublicationsAdd BLAST30
PeptideiPRO_000030709531 – 57Lantibiotic nukacinAdd BLAST27

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Cross-linki39 ↔ 44Beta-methyllanthionine (Thr-Cys)1 Publication
Cross-linki41 ↔ 55Lanthionine (Ser-Cys)1 Publication
Cross-linki48 ↔ 56Lanthionine (Ser-Cys)1 Publication
Modified residuei542,3-didehydrobutyrine1 Publication1

Post-translational modificationi

Maturation of lantibiotics involves the enzymic conversion of Thr, and Ser into dehydrated AA and the formation of thioether bonds with cysteine. This is followed by membrane translocation and cleavage of the modified precursor.

Keywords - PTMi

Thioether bond

Interactioni

GO - Molecular functioni

Family & Domainsi

Sequence similaritiesi

Belongs to the type A lantibiotic family.Curated

Family and domain databases

InterProiView protein in InterPro
IPR007682 Lantibiotic_typ-A_Lactobact
PfamiView protein in Pfam
PF04604 L_biotic_typeA, 1 hit

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q9KWM4-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MENSKVMKDI EVANLLEEVQ EDELNEVLGA KKKSGVIPTV SHDCHMNSFQ

FVFTCCS
Length:57
Mass (Da):6,403
Last modified:October 1, 2000 - v1
Checksum:i9BF0046242995426
GO

Mass spectrometryi

Molecular mass is 2960.1 Da from positions 31 - 57. Determined by FAB. 1 Publication

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AB034941 Genomic DNA Translation: BAA95674.1
AB121757 Genomic DNA Translation: BAC98759.1
AB125341 Genomic DNA Translation: BAD01007.1
RefSeqiNP_940772.1, NC_005207.3
WP_011152951.1, NC_005207.3

Genome annotation databases

GeneIDi2648465

Similar proteinsi

Entry informationi

Entry nameiLANNA_STAWA
AccessioniPrimary (citable) accession number: Q9KWM4
Entry historyiIntegrated into UniProtKB/Swiss-Prot: October 2, 2007
Last sequence update: October 1, 2000
Last modified: May 23, 2018
This is version 48 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Direct protein sequencing, Plasmid

Documents

  1. SIMILARITY comments
    Index of protein domains and families

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