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Protein

Minor capsid protein L2

Gene

L2

Organism
Human papillomavirus type 41
Status
Reviewed-Annotation score: -Protein inferred from homologyi

Functioni

Minor protein of the capsid that localizes along the inner surface of the virion, within the central cavities beneath the L1 pentamers. Plays a role in capsid stabilization through interaction with the major capsid protein L1. Once the virion enters the host cell, L2 escorts the genomic DNA into the nucleus by promoting escape from the endosomal compartments and traffic through the host Golgi network. Plays a role through its interaction with host dynein in the intracellular microtubule-dependent transport of viral capsid toward the nucleus. Mediates the viral genome import into the nucleus through binding to host importins. Once within the nucleus, L2 localizes viral genomes to host PML bodies in order to activate early gene expression for establishment of infection. Later on, promotes late gene expression by interacting with the viral E2 protein and by inhibiting its transcriptional activation functions. During virion assembly, encapsidates the genome by direct interaction with the viral DNA.UniRule annotation

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionDNA-binding
Biological processCytoplasmic inwards viral transport, Host-virus interaction, Microtubular inwards viral transport, Viral penetration into host nucleus, Virus entry into host cell

Names & Taxonomyi

Protein namesi
Recommended name:
Minor capsid protein L2UniRule annotation
Gene namesi
Name:L2UniRule annotation
OrganismiHuman papillomavirus type 41
Taxonomic identifieri10589 [NCBI]
Taxonomic lineageiVirusesdsDNA viruses, no RNA stagePapillomaviridaeFirstpapillomavirinaeNupapillomavirus
Virus hostiHomo sapiens (Human) [TaxID: 9606]
Proteomesi
  • UP000006367 Componenti: Genome

Subcellular locationi

  • Virion UniRule annotation
  • Host nucleus UniRule annotation

GO - Cellular componenti

Keywords - Cellular componenti

Capsid protein, Host nucleus, Virion

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001336081 – 554Minor capsid protein L2Add BLAST554

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Disulfide bondi19 ↔ 26UniRule annotation

Post-translational modificationi

Highly phosphorylated.UniRule annotation

Keywords - PTMi

Disulfide bond, Phosphoprotein

Proteomic databases

PRIDEiP27558

Expressioni

Keywords - Developmental stagei

Late protein

Interactioni

Subunit structurei

Interacts with major capsid protein L1. Interacts with E2; this interaction inhibits E2 transcriptional activity but not the DNA replication function E2. Interacts with host HSPA8; this interaction is required for L2 nuclear translocation. Interacts with host importins KPNB2 and KPNB3. Forms a complex with importin alpha2-beta1 heterodimers via interaction with the importin alpha2 adapter. Interacts with host DYNLT1; this interaction is essential for virus intracellular transport during entry.UniRule annotation

Family & Domainsi

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Motifi2 – 10Nuclear localization signalUniRule annotation9
Motifi533 – 540Nuclear localization signalUniRule annotation8

Sequence similaritiesi

Belongs to the papillomaviridae L2 protein family.UniRule annotation

Phylogenomic databases

OrthoDBiVOG090000CV

Family and domain databases

HAMAPiMF_04003 PPV_L2, 1 hit
InterProiView protein in InterPro
IPR000784 Late_L2
PfamiView protein in Pfam
PF00513 Late_protein_L2, 1 hit

Sequencei

Sequence statusi: Complete.

P27558-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MLARQRVKRA NPEQLYKTCK ATGGDCPPDV IKRYEQTTPA DSILKYGSVG
60 70 80 90 100
VFFGGLGIGT GRGGGGTVLG AGAVGGRPSI SSGAIGPRDI LPIESGGPSL
110 120 130 140 150
AEEIPLLPMA PRVPRPTDPF RPSVLEEPFI IRPPERPNIL HEQRFPTDAA
160 170 180 190 200
PFDNGNTEIT TIPSQYDVSG GGVDIQIIEL PSVNDPGPSV VTRTQYNNPT
210 220 230 240 250
FEVEVSTDIS GETSSTDNII VGAESGGTSV GDNAELIPLL DISRGDTIDT
260 270 280 290 300
TILAPGEEET AFVTSTPERV PIQERLPIRP YGRQYQQVRV TDPEFLDSAA
310 320 330 340 350
VLVSLENPVF DADITLTFED DLQQALRSDT DLRDVRRLSR PYYQRRTTGL
360 370 380 390 400
RVSRLGQRRG TISTRSGVQV GSAAHFFQDI SPIGQAIEPI DAIELDVLGE
410 420 430 440 450
QSGEGTIVRG DPTPSIEQDI GLTALGDNIE NELQEIDLLT ADGEEDQEGR
460 470 480 490 500
DLQLVFSTGN DEVVDIMTIP IRAGGDDRPS VFIFSDDGTH IVYPTSTTAT
510 520 530 540 550
TPLVPAQPSD VPYIVVDLYS GSMDYDIHPS LLRRKRKKRK RVYFSDGRVA

SRPK
Length:554
Mass (Da):59,975
Last modified:August 1, 1992 - v1
Checksum:iDDCC261D07129222
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X56147 Genomic DNA Translation: CAA39618.1
PIRiG43550 P2WL41
RefSeqiNP_040293.1, NC_001354.1

Genome annotation databases

GeneIDi1489284
KEGGivg:1489284

Entry informationi

Entry nameiVL2_HPV41
AccessioniPrimary (citable) accession number: P27558
Entry historyiIntegrated into UniProtKB/Swiss-Prot: August 1, 1992
Last sequence update: August 1, 1992
Last modified: June 20, 2018
This is version 75 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programViral Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

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