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P27460

- GAG_MLVCB

UniProt

P27460 - GAG_MLVCB

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Protein

Gag polyprotein

Gene

gag

Organism
Cas-Br-E murine leukemia virus
Status
Reviewed - Annotation score: 4 out of 5- Protein inferred from homologyi

Functioni

Gag polyprotein plays a role in budding and is processed by the viral protease during virion maturation outside the cell. During budding, it recruits, in a PPXY-dependent or independent manner, Nedd4-like ubiquitin ligases that conjugate ubiquitin molecules to Gag, or to Gag binding host factors. Interaction with HECT ubiquitin ligases probably link the viral protein to the host ESCRT pathway and facilitate release (By similarity).By similarity
Matrix protein p15 targets Gag and gag-pol polyproteins to the plasma membrane via a multipartite membrane binding signal, that includes its myristoylated N-terminus. Also mediates nuclear localization of the preintegration complex (By similarity).By similarity
Capsid protein p30 forms the spherical core of the virion that encapsulates the genomic RNA-nucleocapsid complex.By similarity
Nucleocapsid protein p10 is involved in the packaging and encapsidation of two copies of the genome. Binds with high affinity to conserved UCUG elements within the packaging signal, located near the 5'-end of the genome. This binding is dependent on genome dimerization (By similarity).By similarity

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sitei129 – 1302Cleavage; by viral protease p14By similarity
Sitei213 – 2142Cleavage; by viral protease p14By similarity
Sitei476 – 4772Cleavage; by viral protease p14By similarity

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Zinc fingeri500 – 51718CCHC-typePROSITE-ProRule annotationAdd
BLAST

GO - Molecular functioni

  1. RNA binding Source: UniProtKB-KW
  2. structural constituent of virion Source: UniProtKB-KW
  3. zinc ion binding Source: InterPro

GO - Biological processi

  1. viral budding via host ESCRT complex Source: UniProtKB-KW
  2. viral release from host cell Source: UniProtKB-KW
Complete GO annotation...

Keywords - Biological processi

Host-virus interaction, Viral budding, Viral budding via the host ESCRT complexes, Virus exit from host cell

Keywords - Ligandi

Metal-binding, RNA-binding, Viral nucleoprotein, Zinc

Names & Taxonomyi

Protein namesi
Recommended name:
Gag polyprotein
Alternative name(s):
Core polyprotein
Cleaved into the following 4 chains:
Matrix protein p15
Short name:
MA
Alternative name(s):
pp12
Capsid protein p30
Short name:
CA
Nucleocapsid protein p10
Short name:
NC-gag
Gene namesi
Name:gag
OrganismiCas-Br-E murine leukemia virus
Taxonomic identifieri11792 [NCBI]
Taxonomic lineageiVirusesRetro-transcribing virusesRetroviridaeOrthoretrovirinaeGammaretrovirusMurine leukemia virus
Virus hostiMus musculus (Mouse) [TaxID: 10090]

Subcellular locationi

Chain Gag polyprotein : Virion By similarity. Host cell membrane Curated; Lipid-anchor Curated. Host late endosome membrane Curated; Lipid-anchor Curated. Host endosomehost multivesicular body By similarity
Note: These locations are probably linked to virus assembly sites.By similarity

GO - Cellular componenti

  1. host cell endosome Source: UniProtKB-KW
  2. host cell plasma membrane Source: UniProtKB-KW
  3. membrane Source: UniProtKB-KW
  4. viral nucleocapsid Source: UniProtKB-KW
Complete GO annotation...

Keywords - Cellular componenti

Capsid protein, Host cell membrane, Host endosome, Host membrane, Membrane, Viral matrix protein, Virion

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Initiator methioninei1 – 11Removed; by hostBy similarity
Chaini2 – 536535Gag polyproteinBy similarityPRO_0000390808Add
BLAST
Chaini2 – 129128Matrix protein p15Sequence AnalysisPRO_0000040884Add
BLAST
Chaini130 – 21384RNA-binding phosphoprotein p12Sequence AnalysisPRO_0000040885Add
BLAST
Chaini214 – 476263Capsid protein p30Sequence AnalysisPRO_0000040886Add
BLAST
Chaini477 – 53660Nucleocapsid protein p10Sequence AnalysisPRO_0000040887Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Lipidationi2 – 21N-myristoyl glycine; by hostBy similarity
Modified residuei190 – 1901Phosphoserine; by hostBy similarity

Post-translational modificationi

Specific enzymatic cleavages by the viral protease yield mature proteins. The protease is released by autocatalytic cleavage. The polyprotein is cleaved during and after budding, this process is termed maturation (By similarity).By similarity
RNA-binding phosphoprotein p12 is phosphorylated on serine residues.By similarity

Keywords - PTMi

Lipoprotein, Myristate, Phosphoprotein

Interactioni

Subunit structurei

Capsid protein p30 is a homohexamer, that further associates as homomultimer. The virus core is composed of a lattice formed from hexagonal rings, each containing six capsid monomers (By similarity).By similarity

Structurei

3D structure databases

ProteinModelPortaliP27460.
SMRiP27460. Positions 2-98, 214-344, 350-380, 477-532.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Coiled coil

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Coiled coili436 – 47641Sequence AnalysisAdd
BLAST

Motif

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Motifi109 – 1124PTAP/PSAP motif
Motifi128 – 1325LYPX(n)L motif
Motifi160 – 1634PPXY motif

Domaini

Late-budding domains (L domains) are short sequence motifs essential for viral particle budding. They recruit proteins of the host ESCRT machinery (Endosomal Sorting Complex Required for Transport) or ESCRT-associated proteins. RNA-binding phosphoprotein p12 contains one L domain: a PPXY motif which potentially interacts with the WW domain 3 of NEDD4 E3 ubiquitin ligase. Matrix protein p15 contains one L domain: a PTAP/PSAP motif, which potentially interacts with the UEV domain of TSG101. The junction between the matrix protein p15 and RNA-binding phosphoprotein p12 also contains one L domain: a LYPX(n)L motif which potentially interacts with PDCD6IP (By similarity).By similarity

Sequence similaritiesi

Contains 1 CCHC-type zinc finger.PROSITE-ProRule annotation

Zinc finger

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Zinc fingeri500 – 51718CCHC-typePROSITE-ProRule annotationAdd
BLAST

Keywords - Domaini

Coiled coil, Zinc-finger

Family and domain databases

Gene3Di1.10.150.180. 1 hit.
1.10.375.10. 1 hit.
4.10.60.10. 1 hit.
InterProiIPR000840. G_retro_matrix_N.
IPR002079. Gag_p12.
IPR003036. Gag_P30.
IPR008919. Retrov_capsid_N.
IPR010999. Retrovr_matrix_N.
IPR001878. Znf_CCHC.
[Graphical view]
PfamiPF01140. Gag_MA. 1 hit.
PF01141. Gag_p12. 1 hit.
PF02093. Gag_p30. 1 hit.
PF00098. zf-CCHC. 1 hit.
[Graphical view]
SMARTiSM00343. ZnF_C2HC. 1 hit.
[Graphical view]
SUPFAMiSSF47836. SSF47836. 1 hit.
SSF47943. SSF47943. 1 hit.
SSF57756. SSF57756. 1 hit.
PROSITEiPS50158. ZF_CCHC. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

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

P27460-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MGQTVTTPLS LTLDHWKDVE RTAHNQSVDV KKRRWVTFCS VEWPTFNVGW
60 70 80 90 100
PQDGTFNRDI ITQVKIKVFS PGPHGHPDQV PYIVTWEALA FDPPPWVKPF
110 120 130 140 150
VHPKPPLPPS APSLLPEPPL STSPRSSLYP ALTPSLGAKP KPQVLPDSGG
160 170 180 190 200
PLIDLLTEDP PPYRDPGPPP SDRDRDDGEA APAGEAPDPS PMASRLRGRR
210 220 230 240 250
ELPVADSTTS QAFPLRSGGN GQLQYWPFSS SDLYNWKNNN PSFSEDPGKL
260 270 280 290 300
TALIESVLLT HQPTWDDCQQ LLGTLLTGEE KQRVLLEARK AVRGEDGRPT
310 320 330 340 350
QLPNEINDAF PLERPDWDYN TQRGRNHLVL YRQLLLAGLQ NAGRSPTNLA
360 370 380 390 400
KVKGITQGPN ESPSAFLERL KEAYRRYTPY DPEDPGQETN VSMSFIWQSA
410 420 430 440 450
PDIGRKLERL EDLKSKTLGD LVREAEKIFN KRETPEEREE RIKRETEEKE
460 470 480 490 500
ERRRAEDEQK EKERDRRRHR EMSKLLATVV SGQKQDRQGG ERRRPQLDKD
510 520 530
QCAYCKEKGH WAKDCPKKPR GPRGPRPQTS LLALDD
Length:536
Mass (Da):60,740
Last modified:January 23, 2007 - v3
Checksum:i3E0F863A393960AE
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X57540 Genomic DNA. Translation: CAA40759.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X57540 Genomic DNA. Translation: CAA40759.1 .

3D structure databases

ProteinModelPortali P27460.
SMRi P27460. Positions 2-98, 214-344, 350-380, 477-532.
ModBasei Search...
MobiDBi Search...

Protocols and materials databases

Structural Biology Knowledgebase Search...

Family and domain databases

Gene3Di 1.10.150.180. 1 hit.
1.10.375.10. 1 hit.
4.10.60.10. 1 hit.
InterProi IPR000840. G_retro_matrix_N.
IPR002079. Gag_p12.
IPR003036. Gag_P30.
IPR008919. Retrov_capsid_N.
IPR010999. Retrovr_matrix_N.
IPR001878. Znf_CCHC.
[Graphical view ]
Pfami PF01140. Gag_MA. 1 hit.
PF01141. Gag_p12. 1 hit.
PF02093. Gag_p30. 1 hit.
PF00098. zf-CCHC. 1 hit.
[Graphical view ]
SMARTi SM00343. ZnF_C2HC. 1 hit.
[Graphical view ]
SUPFAMi SSF47836. SSF47836. 1 hit.
SSF47943. SSF47943. 1 hit.
SSF57756. SSF57756. 1 hit.
PROSITEi PS50158. ZF_CCHC. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "Complete nucleotide sequence of the neurotropic murine retrovirus CAS-BR-E."
    Perryman S.M., McAtee F.J., Portis J.L.
    Nucleic Acids Res. 19:1707-1707(1991) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].

Entry informationi

Entry nameiGAG_MLVCB
AccessioniPrimary (citable) accession number: P27460
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 1, 1992
Last sequence update: January 23, 2007
Last modified: October 29, 2014
This is version 94 of the entry and version 3 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programViral Protein Annotation Program

Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3