Human protein: antigen-presenting glycoprotein CD1d isoform 1 precursor
Human protein sequence: MGCLLFLLLWALLQAWGSAEVPQRLFPLRCLQISSFANSSWTRTDGLAWLGELQTHSWSNDSDTVRSLKPWSQGTFSDQQWETLQHIFRVYRSSFTRDVKEFAKMLRLSYPLELQVSAGCEVHPGNASNNFFHVAFQGKDILSFQGTSWEPTQEAPLWVNLAIQVLNQDKWTRETVQWLLNGTCPQFVSGLLESGKSELKKQVKPKAWLSRGPSPGPGRLLLVCHVSGFYPKPVWVKWMRGEQEQQGTQPGDILPNADETWYLRATLDVVAGEAAGLSCRVKHSSLEGQDIVLYWGGSYTSMGLIALAVLACLLFLLIVGFTSRFKRQTSYQGVL

HIV protein: Vpu
Interaction type: inhibits
Description: HIV-1 Vpu and Nef cooperatively inhibit CD1d-mediated lipid antigen presentation in HIV-1-infected DCs
HIV protein sequence: MQPIPIVAIVALVVAIIIAIVVWSIVIIEYRKILRQRKIDRLIDRLIERAEDSGNESEGEISALVEMGVEMGHHAPWDVDDL

HIV protein: Vpu
Interaction type: downregulates
Description: HIV-1 Vpu downregulates CD1d from the cell surface by inhibiting CD1d recycling from early endosomal compartments to the cell surface
HIV protein sequence: MQPIPIVAIVALVVAIIIAIVVWSIVIIEYRKILRQRKIDRLIDRLIERAEDSGNESEGEISALVEMGVEMGHHAPWDVDDL

HIV protein: Vpu
Interaction type: downregulates
Description: HIV-1 Vpu proteins from Cameroonian group N viruses are largely unable to downregulate CD1D
HIV protein sequence: MQPIPIVAIVALVVAIIIAIVVWSIVIIEYRKILRQRKIDRLIDRLIERAEDSGNESEGEISALVEMGVEMGHHAPWDVDDL

HIV protein: Vpu
Interaction type: downregulates
Description: HIV-1 Vpu proteins from group M, O, and P, and SIV Vpu proteins efficiently downregulate CD1d surface levels
HIV protein sequence: MQPIPIVAIVALVVAIIIAIVVWSIVIIEYRKILRQRKIDRLIDRLIERAEDSGNESEGEISALVEMGVEMGHHAPWDVDDL

HIV protein: Vpu
Interaction type: downregulates
Description: The conserved APW motif in the alpha-helix II domain at the C-terminal region of HIV-1 Vpu is involved in CD1d downregulation
HIV protein sequence: MQPIPIVAIVALVVAIIIAIVVWSIVIIEYRKILRQRKIDRLIDRLIERAEDSGNESEGEISALVEMGVEMGHHAPWDVDDL

HIV protein: Envelope surface glycoprotein gp120
Interaction type: downregulates
Description: CD1d surface expression on human cell lines is downregulated after infection with M-tropic HIV, T-tropic HIV, or after exposure to HIV gp120 in vitro
HIV protein sequence: SATEKLWVTVYYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDPNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPCVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYKLTSCNTSVITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSVNFTDNAKTIIVQLNTSVEINCTRPNNNTRKRIRIQRGPGRAFVTIGKIGNMRQAHCNISRAKWNNTLKQIASKLREQFGNNKTIIFKQSSGGDPEIVTHSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTITLPCRIKQIINMWQKVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSNNESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKRRVVQREKR

HIV protein: Nef
Interaction type: downregulates
Description: Nef-induced downregulation of CD1d is observed when cells are co-expressing Nef and CD1d, and six amino acids (300-305) in the cytoplasmic tail of CD1d are required for the downregulation by Nef
HIV protein sequence: MGGKWSKSSVIGWPTVRERMRRAEPAADRVGAASRDLEKHGAITSSNTAATNAACAWLEAQEEEEVGFPVTPQVPLRPMTYKAAVDLSHFLKEKGGLEGLIHSQRRQDILDLWIYHTQGYFPDWQNYTPGPGVRYPLTFGWCYKLVPVEPDKIEEANKGENTSLLHPVSLHGMDDPEREVLEWRFDSRLAFHHVARELHPEYFKNC

HIV protein: Nef
Interaction type: downregulates
Description: HIV-1 Nef-mediated downregulation of CD1d requires a tyrosine-based motif in the CD1d cytoplasmic tail and four Nef amino acid motifs (EEEE65, PxxP75, DD165, and LL175), which are known to be involved in the downregulation of MHC-I and CD4
HIV protein sequence: MGGKWSKSSVIGWPTVRERMRRAEPAADRVGAASRDLEKHGAITSSNTAATNAACAWLEAQEEEEVGFPVTPQVPLRPMTYKAAVDLSHFLKEKGGLEGLIHSQRRQDILDLWIYHTQGYFPDWQNYTPGPGVRYPLTFGWCYKLVPVEPDKIEEANKGENTSLLHPVSLHGMDDPEREVLEWRFDSRLAFHHVARELHPEYFKNC

HIV protein: Nef
Interaction type: downregulates
Description: HIV-1 Nef downregulates the expression of the non-classical MHC-I like CD1d molecule by increasing internalization of CD1d molecules from the cell surface and retaining CD1d in the trans-Golgi-network (TGN)
HIV protein sequence: MGGKWSKSSVIGWPTVRERMRRAEPAADRVGAASRDLEKHGAITSSNTAATNAACAWLEAQEEEEVGFPVTPQVPLRPMTYKAAVDLSHFLKEKGGLEGLIHSQRRQDILDLWIYHTQGYFPDWQNYTPGPGVRYPLTFGWCYKLVPVEPDKIEEANKGENTSLLHPVSLHGMDDPEREVLEWRFDSRLAFHHVARELHPEYFKNC

HIV protein: Nef
Interaction type: inhibits
Description: HIV-1 Vpu and Nef cooperatively inhibit CD1d-mediated lipid antigen presentation in HIV-1-infected DCs
HIV protein sequence: MGGKWSKSSVIGWPTVRERMRRAEPAADRVGAASRDLEKHGAITSSNTAATNAACAWLEAQEEEEVGFPVTPQVPLRPMTYKAAVDLSHFLKEKGGLEGLIHSQRRQDILDLWIYHTQGYFPDWQNYTPGPGVRYPLTFGWCYKLVPVEPDKIEEANKGENTSLLHPVSLHGMDDPEREVLEWRFDSRLAFHHVARELHPEYFKNC