Lipid Modification Database
Tag Content
LipidDB ID
LipidDB-559292-01046
Entry Name
UniProt Accession
Theoretical PI
5.25
Molecular Weight
23080.96
Genbank Protein ID
Genbank Nucleotide ID
Protein Name
Vacuolar protein sorting-associated protein 21
Protein Synonyms/Alias
GTP-binding protein YPT51; Vacuolar protein-targeting protein 12;
Gene Name
VPS21
Gene Synonyms/Alias
VPS12; VPT12; YPT21; YPT51; YOR089C; YOR3154C;
Created Date
01-JUN-1994
 Lipid Modification Sites 
 Position   Sequence Form   Peptide   References   Modification Type 
208
Canonical
GTSANSACSC*****
[1]
S-Geranylgeranylation
210
Canonical
SANSACSC*******
[1]
S-Geranylgeranylation
Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
NCBI Taxa ID
559292
Reference
[1] Horazdovsky BF, Busch GR, Emr SD. VPS21 encodes a rab5-like GTP bindingprotein that is required for the sorting of yeast vacuolar proteins. EMBO J. 1994Mar 15;13(6):1297-309.[PMID:8137814]
Functional Description
Required for protein transport to the vacuole. Involved in two vesicle trafficking steps to the prevacuolar compartment (PVC), regulating the docking of endosomes and Golgi vesicles to the PVC by interacting with PEP7/VAC1 on the PVC membrane and promoting SNARE complex formation.
Sequence Annotation
Nucleotide-binding: 14 21 GTP.
Nucleotide-binding: 62 66 GTP.
Nucleotide-binding: 120 123 GTP.
Motif: 36 44 Effector region.
Modified residue: 188 188 Phosphoserine.
Modified residue: 210 210 Cysteine methyl ester.
Protein Length
210 AA.
Protein Sequence
(Canonical)
MNTSVTSIKL VLLGEAAVGK SSIVLRFVSN DFAENKEPTI GAAFLTQRVT INEHTVKFEI  60
WDTAGQERFA SLAPMYYRNA QAALVVYDVT KPQSFIKARH WVKELHEQAS KDIIIALVGN  120
KIDMLQEGGE RKVAREEGEK LAEEKGLLFF ETSAKTGENV NDVFLGIGEK IPLKTAEEQN  180
SASNERESNN QRVDLNAAND GTSANSACSC                                   210
FASTA
(Canonical)
>LipidDB-559292-01046|P36017
MNTSVTSIKLVLLGEAAVGKSSIVLRFVSNDFAENKEPTIGAAFLTQRVTINEHTVKFEI
WDTAGQERFASLAPMYYRNAQAALVVYDVTKPQSFIKARHWVKELHEQASKDIIIALVGN
KIDMLQEGGERKVAREEGEKLAEEKGLLFFETSAKTGENVNDVFLGIGEKIPLKTAEEQN
SASNERESNNQRVDLNAANDGTSANSACSC
Gene Ontology
GO:0005770; C:late endosome; IMP:SGD
GO:0016020; C:membrane; IEA:UniProtKB-KW
GO:0005739; C:mitochondrion; IEA:UniProtKB-KW
GO:0005525; F:GTP binding; IEA:UniProtKB-KW
GO:0003924; F:GTPase activity; IDA:SGD
GO:0006897; P:endocytosis; IMP:SGD
GO:0006895; P:Golgi to endosome transport; IMP:SGD
GO:0006184; P:GTP catabolic process; IDA:GOC
GO:0032511; P:late endosome to vacuole transport via multivesicular body sorting pathway; IGI:SGD
GO:0036258; P:multivesicular body assembly; IGI:SGD
GO:0036010; P:protein localization to endosome; IGI:SGD
GO:0006623; P:protein targeting to vacuole; IMP:SGD
GO:0007264; P:small GTPase mediated signal transduction; IEA:InterPro
GO:0000011; P:vacuole inheritance; IMP:SGD
Interpro
InterPro; IPR027417; P-loop_NTPase
InterPro; IPR005225; Small_GTP-bd_dom
InterPro; IPR001806; Small_GTPase
InterPro; IPR003579; Small_GTPase_Rab_type
Pfam
Pfam; PF00071; Ras;
SMART
SMART; SM00175; RAB;
PROSITE
PROSITE; PS51419; RAB;
PRINTS
PRINTS; PR00449; RASTRNSFRMNG;