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Overview

Uniprot IDH0WD22
Protein Name-
Gene NameVAPB
OrganismCavia porcellus

Kla Sites from experimental identification

Position Flanking peptide
181 IISTTASKTEAPSVS

Function

Endoplasmic reticulum (ER)-anchored protein that mediates the formation of contact sites between the ER and endosomes via interaction with FFAT motif-containing proteins such as STARD3 or WDR44. Interacts with STARD3 in a FFAT motif phosphorylation dependent manner. Via interaction with WDR44 participates in neosynthesized protein export. Participates in the endoplasmic reticulum unfolded protein response (UPR) by inducing ERN1/IRE1 activity. Involved in cellular calcium homeostasis regulation

Protein Sequence

10 MRLRTSREGL 20 GAQPPSLPWS 30 WRRAPLPAAR 40 DRPAAACVRA 50 SLRACVRAPF 60 YSAGPFTDVV 70 TTNLKLGNPT 80 DRNVCFKVKT 90 TAPRRYCVRP 100 NSGIIDAGAS 110 INVSVMLQPF 120 DYDPNEKSKH 130 KFMVQSMFAP 140 ADTSDMEAVW 150 KEAKPEDLMD 160 SKLRCVFELP 170 AENDKPHDVE 180 INKIISTTAS 190 KTEAPSVSKS 200 LTSSLDDTEV 210 KKVMEECKRL 220 QGEVQRLREE 230 NRQFKEEDGL 240 RMRKTAQSHG 250 PIAALAAAGK 260 EEGLSTRLLA 270 LVVLFFIVGV IIGKIAL

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005789 endoplasmic reticulum membrane
Cellular Component GO:0005794 Golgi apparatus
Cellular Component GO:0005886 plasma membrane
Molecular Function GO:0048487 beta-tubulin binding
Molecular Function GO:0019899 enzyme binding
Molecular Function GO:0033149 FFAT motif binding
Molecular Function GO:0008017 microtubule binding
Molecular Function GO:0046982 protein heterodimerization activity
Molecular Function GO:0042803 protein homodimerization activity
Biological Process GO:0030301 cholesterol transport
Biological Process GO:0090114 COPII-coated vesicle budding
Biological Process GO:0090158 endoplasmic reticulum membrane organization
Biological Process GO:0061817 endoplasmic reticulum-plasma membrane tethering
Biological Process GO:0006874 intracellular calcium ion homeostasis
Biological Process GO:0036498 IRE1-mediated unfolded protein response
Biological Process GO:0045070 positive regulation of viral genome replication

Reference

[1] Feng J, Chen X, Li R, Xie Y, Zhang X et al.. Lactylome analysis reveals potential target modified proteins in the retina of form-deprivation myopia.. iScience 27(9):110606. 2024 Sep 20. PMID: 39246443.