Details of the Target

General Information of Target

Target ID LDTP06993
Target Name Protein crumbs homolog 2 (CRB2)
Gene Name CRB2
Gene ID 286204
Synonyms
Protein crumbs homolog 2; Crumbs-like protein 2
3D Structure
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2D Sequence (FASTA)
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3D Structure (PDB)
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Sequence
MALARPGTPDPQALASVLLLLLWAPALSLLAGTVPSEPPSACASDPCAPGTECQATESGG
YTCGPMEPRGCATQPCHHGALCVPQGPDPTGFRCYCVPGFQGPRCELDIDECASRPCHHG
ATCRNLADRYECHCPLGYAGVTCEMEVDECASAPCLHGGSCLDGVGSFRCVCAPGYGGTR
CQLDLDECQSQPCAHGGTCHDLVNGFRCDCAGTGYEGTHCEREVLECASAPCEHNASCLE
GLGSFRCLCWPGYSGELCEVDEDECASSPCQHGGRCLQRSDPALYGGVQAAFPGAFSFRH
AAGFLCHCPPGFEGADCGVEVDECASRPCLNGGHCQDLPNGFQCHCPDGYAGPTCEEDVD
ECLSDPCLHGGTCSDTVAGYICRCPETWGGRDCSVQLTGCQGHTCPLAATCIPIFESGVH
SYVCHCPPGTHGPFCGQNTTFSVMAGSPIQASVPAGGPLGLALRFRTTLPAGTLATRNDT
KESLELALVAATLQATLWSYSTTVLVLRLPDLALNDGHWHQVEVVLHLATLELRLWHEGC
PARLCVASGPVALASTASATPLPAGISSAQLGDATFAGCLQDVRVDGHLLLPEDLGENVL
LGCERREQCRPLPCVHGGSCVDLWTHFRCDCARPHRGPTCADEIPAATFGLGGAPSSASF
LLQELPGPNLTVSFLLRTRESAGLLLQFANDSAAGLTVFLSEGRIRAEVPGSPAVVLPGR
WDDGLRHLVMLSFGPDQLQDLGQHVHVGGRLLAADSQPWGGPFRGCLQDLRLDGCHLPFF
PLPLDNSSQPSELGGRQSWNLTAGCVSEDMCSPDPCFNGGTCLVTWNDFHCTCPANFTGP
TCAQQLWCPGQPCLPPATCEEVPDGFVCVAEATFREGPPAAFSGHNASSGRLLGGLSLAF
RTRDSEAWLLRAAAGALEGVWLAVRNGSLAGGVRGGHGLPGAVLPIPGPRVADGAWHRVR
LAMERPAATTSRWLLWLDGAATPVALRGLASDLGFLQGPGAVRILLAENFTGCLGRVALG
GLPLPLARPRPGAAPGAREHFASWPGTPAPILGCRGAPVCAPSPCLHDGACRDLFDAFAC
ACGPGWEGPRCEAHVDPCHSAPCARGRCHTHPDGRFECRCPPGFGGPRCRLPVPSKECSL
NVTCLDGSPCEGGSPAANCSCLEGLAGQRCQVPTLPCEANPCLNGGTCRAAGGVSECICN
ARFSGQFCEVAKGLPLPLPFPLLEVAVPAACACLLLLLLGLLSGILAARKRRQSEGTYSP
SQQEVAGARLEMDSVLKVPPEERLI
Target Bioclass
Transporter and channel
Family
Crumbs protein family
Subcellular location
Secreted; Apical cell membrane
Function
Apical polarity protein that plays a central role during the epithelial-to-mesenchymal transition (EMT) at gastrulation, when newly specified mesodermal cells move inside the embryo. Acts by promoting cell ingression, the process by which cells leave the epithelial epiblast and move inside the embryo to form a new tissue layer. The anisotropic distribution of CRB2 and MYH10/myosin-IIB at cell edges define which cells will ingress: cells with high apical CRB2 are probably extruded from the epiblast by neighboring cells with high levels of apical MYH10/myosin-IIB. Plays a role in the maintenance of retinal neuroepithelium organization, structural integrity, adhesion, photoreceptor polarity and retinal photoreceptor layer thickness. May play a role in determining the length of cone photoreceptor outer segments and proliferation of late-born progenitor cells. Also required for maintenance of the apical polarity complex during development of the cortex. Inhibits gamma-secretase-dependent cleavage of APP and secretion of amyloid-beta peptide 40 and amyloid-beta peptide 42, and thereby inhibits gamma-secretase-dependent Notch transcription.
Uniprot ID
Q5IJ48
Ensemble ID
ENST00000359999.7
HGNC ID
HGNC:18688

Target Site Mutations in Different Cell Lines

Cell line Mutation details Probe for labeling this protein in this cell
AN3CA SNV: p.D148V .
CCFSTTG1 SNV: p.L772V .
CCK81 Deletion: p.R69GfsTer73 .
COLO320 SNV: p.Q343P .
EFO27 SNV: p.V933M .
FTC133 SNV: p.A990T .
HCC15 SNV: p.G86C .
HEC1 SNV: p.T902M .
HEC1B SNV: p.T902M .
HT29 SNV: p.A1033V .
JURKAT SNV: p.C117Y; p.C270Y; p.A1101T .
KYSE410 SNV: p.R750G .
LS180 SNV: p.V747M .
MFE319 SNV: p.P89H; p.C335Y .
NCIH1944 Substitution: p.T480K .
NCIH446 SNV: p.G572W .
PATU8988T SNV: p.C579F .
REH SNV: p.A1001V .
SKMEL28 SNV: p.T1143P .

Probe(s) Labeling This Target

ABPP Probe
Click To Hide/Show 1 Probe Related to This Target
Probe name Structure Binding Site(Ratio) Interaction ID Ref
Acrolein
 Probe Info  		N.A.  LDD0217  [1]

Competitor(s) Related to This Target

Competitor ID Name Cell line Binding Site(Ratio) Interaction ID Ref
 LDCM0108  Chloroacetamide HeLa N.A.  LDD0222  [1]

References

1 ACR-Based Probe for the Quantitative Profiling of Histidine Reactivity in the Human Proteome. J Am Chem Soc. 2023 Mar 8;145(9):5252-5260. doi: 10.1021/jacs.2c12653. Epub 2023 Feb 27.