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Protein

Major capsid protein L1

Gene

L1

Organism
Human papillomavirus type 14
Status
Reviewed-Annotation score: -Protein inferred from homologyi

Functioni

Forms an icosahedral capsid with a T=7 symmetry and a 50 nm diameter. The capsid is composed of 72 pentamers linked to each other by disulfide bonds and associated with L2 proteins. Binds to heparan sulfate proteoglycans on cell surface of basal layer keratinocytes to provide initial virion attachment. This binding mediates a conformational change in the virus capsid that facilitates efficient infection. The virion enters the host cell via endocytosis. During virus trafficking, L1 protein dissociates from the viral DNA and the genomic DNA is released to the host nucleus. The virion assembly takes place within the cell nucleus. Encapsulates the genomic DNA together with protein L2.UniRule annotation

GO - Molecular functioni

GO - Biological processi

Keywordsi

Biological processHost-virus interaction, Viral attachment to host cell, Viral penetration into host cytoplasm, Virus endocytosis by host, Virus entry into host cell

Names & Taxonomyi

Protein namesi
Recommended name:
Major capsid protein L1UniRule annotation
Gene namesi
Name:L1UniRule annotation
OrganismiHuman papillomavirus type 14
Taxonomic identifieri10605 [NCBI]
Taxonomic lineageiVirusesdsDNA viruses, no RNA stagePapillomaviridaeFirstpapillomavirinaeBetapapillomavirus
Virus hostiHomo sapiens (Human) [TaxID: 9606]
Proteomesi
  • UP000009108 Componenti: Genome

Subcellular locationi

  • Virion UniRule annotation
  • Host nucleus UniRule annotation

GO - Cellular componenti

Keywords - Cellular componenti

Capsid protein, Host nucleus, T=7 icosahedral capsid protein, Virion

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001334981 – 518Major capsid protein L1Add BLAST518

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Disulfide bondi177Interchain (with C-446)UniRule annotation
Disulfide bondi446Interchain (with C-177)UniRule annotation

Keywords - PTMi

Disulfide bond

Expressioni

Keywords - Developmental stagei

Late protein

Interactioni

Subunit structurei

Self-assembles into homopentamers. The capsid has an icosahedral symmetry and consists of 72 capsomers, with each capsomer being a pentamer of L1. Interacts with the minor capsid protein L2; this interaction is necessary for viral genome encapsidation. Interacts with protein E2; this interaction enhances E2-dependent replication and transcription activation.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliP36734
SMRiP36734
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the papillomaviridae L1 protein family.UniRule annotation

Phylogenomic databases

OrthoDBiVOG0900007S

Family and domain databases

Gene3Di2.60.175.20, 2 hits
HAMAPiMF_04002 PPV_L1, 1 hit
InterProiView protein in InterPro
IPR002210 Capsid_L1_Papillomavir
IPR036973 Capsid_L1_sf_Papillomavir
IPR011222 dsDNA_vir_gr_I_capsid
PfamiView protein in Pfam
PF00500 Late_protein_L1, 1 hit
PRINTSiPR00865 HPVCAPSIDL1
SUPFAMiSSF88648 SSF88648, 1 hit

Sequencei

Sequence statusi: Complete.

P36734-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAVWQAASGK VYLPPSTPVA RVQSTDEYVQ RTNIYYHAYS DRLLTVGHPY
60 70 80 90 100
FNIYDVQSAK IKVPKVSGNQ HRVFRLKLPD PNRFALADMS VYNPDKERLV
110 120 130 140 150
WACRGIEIGR GQPLGVGSVG HPLFNKVGDT ENPNSYRQQA NSTDDRQNVS
160 170 180 190 200
FDPKQLQMFI IGCAPCMGEH WDRALPCVED KPPPGSCPPI ELKNTVIEDG
210 220 230 240 250
DMADIGYGNL NFKALQENRS DVSLDIVNEI CKYPDFLKMQ NDVYGDSCFF
260 270 280 290 300
YARREQCYAR HFFVRGGKTG DDIPAAQVDE GSLKNVYYIP PMTNQPQNNI
310 320 330 340 350
GNAMYFPTVS GSLVSSDAQL FNRPFWLQRA QGHNNGICWF NQLFVTVVDN
360 370 380 390 400
TRNTNFSISV SSENTEVSKI DNYTSQKFQE YLRHVEEYEM SLILQLCKIP
410 420 430 440 450
LTAEVLAQIN AMNSNILEEW QLGFVPAPDN PIHDTYRYIE SAATRCPDKN
460 470 480 490 500
PPKEREDPYK NFNFWNVDLT ERLSLDLDQY SLGRKFLFQA GLQQSTVNGT
510
KTVSTRGSIK GIKRKRKN
Length:518
Mass (Da):58,905
Last modified:June 1, 1994 - v1
Checksum:i86CE1695CEA833DA
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X74467 Genomic DNA Translation: CAA52505.1
PIRiS36472

Similar proteinsi

Entry informationi

Entry nameiVL1_HPV14
AccessioniPrimary (citable) accession number: P36734
Entry historyiIntegrated into UniProtKB/Swiss-Prot: June 1, 1994
Last sequence update: June 1, 1994
Last modified: June 20, 2018
This is version 73 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

Documents

  1. SIMILARITY comments
    Index of protein domains and families

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