CPLM 1.0 - Compendium of Protein Lysine Modification
TagContent
CPLM ID CPLM-006497
UniProt Accession
Genbank Protein ID
 L18889 
Genbank Nucleotide ID
Protein Name
 Calnexin 
Protein Synonyms/Alias
  
Gene Name
 Canx 
Gene Synonyms/Alias
  
Created Date
 July 27, 2013 
Organism
 Rattus norvegicus (Rat) 
NCBI Taxa ID
 10116 
Lysine Modification
Position
Peptide
Type
References
135KHHAISAKLNKPFLFacetylation[1]
171AYVKLLSKTSELNLDacetylation[1]
221VYEEKHAKRPDADLKacetylation[1]
546DEEEEEEKLEEKQKSacetylation[1]
Reference
 [1] Proteomic analysis of lysine acetylation sites in rat tissues reveals organ specificity and subcellular patterns.
 Lundby A, Lage K, Weinert BT, Bekker-Jensen DB, Secher A, Skovgaard T, Kelstrup CD, Dmytriyev A, Choudhary C, Lundby C, Olsen JV.
 Cell Rep. 2012 Aug 30;2(2):419-31. [PMID: 22902405
Functional Description
 Calcium-binding protein that interacts with newly synthesized glycoproteins in the endoplasmic reticulum. It may act in assisting protein assembly and/or in the retention within the ER of unassembled protein subunits. It seems to play a major role in the quality control apparatus of the ER by the retention of incorrectly folded proteins. Associated with partial T-cell antigen receptor complexes that escape the ER of immature thymocytes, it may function as a signaling complex regulating thymocyte maturation. Additionally it may play a role in receptor- mediated endocytosis at the synapse. 
Sequence Annotation
 REPEAT 279 291 1-1.
 REPEAT 296 308 1-2.
 REPEAT 315 327 1-3.
 REPEAT 334 346 1-4.
 REPEAT 349 359 2-1.
 REPEAT 368 378 2-2.
 REPEAT 382 392 2-3.
 REPEAT 396 406 2-4.
 REGION 277 410 P domain (Extended arm) (By similarity).
 REGION 279 346 4 X approximate repeats.
 REGION 349 406 4 X approximate repeats.
 REGION 504 591 Sufficient to mediate interaction with
 METAL 75 75 Calcium; via carbonyl oxygen (By
 METAL 118 118 Calcium; via carbonyl oxygen (By
 METAL 437 437 Calcium (By similarity).
 BINDING 165 165 Carbohydrate (By similarity).
 BINDING 167 167 Carbohydrate (By similarity).
 BINDING 186 186 Carbohydrate (By similarity).
 BINDING 217 217 Carbohydrate (By similarity).
 MOD_RES 138 138 N6-acetyllysine (By similarity).
 MOD_RES 553 553 Phosphoserine (By similarity).
 MOD_RES 561 561 Phosphothreonine (By similarity).
 MOD_RES 563 563 Phosphoserine; by MAPK3.
 MOD_RES 569 569 Phosphoserine (By similarity).
 MOD_RES 582 582 Phosphoserine (By similarity).
 LIPID 503 503 S-palmitoyl cysteine (By similarity).
 LIPID 504 504 S-palmitoyl cysteine (By similarity).
 DISULFID 161 195 By similarity.
 DISULFID 361 367 By similarity.  
Keyword
 Acetylation; Calcium; Chaperone; Complete proteome; Direct protein sequencing; Disulfide bond; Endoplasmic reticulum; Lectin; Lipoprotein; Membrane; Metal-binding; Palmitate; Phosphoprotein; Reference proteome; Repeat; Signal; Transmembrane; Transmembrane helix. 
Sequence Source
 UniProt (SWISSPROT/TrEMBL); GenBank; EMBL 
Protein Length
 591 AA 
Protein Sequence
MEGKWLLCLL LVLGTAAIQA HDGHDDDMID IEDDLDDVIE EVEDSKSKSD TSTPPSPKVT 60
YKAPVPTGEV YFADSFDRGS LSGWILSKAK KDDTDDEIAK YDGKWEVDEM KETKLPGDKG 120
LVLMSRAKHH AISAKLNKPF LFDTKPLIVQ YEVNFQNGIE CGGAYVKLLS KTSELNLDQF 180
HDKTPYTIMF GPDKCGEDYK LHFIFRHKNP KTGVYEEKHA KRPDADLKTY FTDKKTHLYT 240
LILNPDNSFE ILVDQSVVNS GNLLNDMTPP VNPSREIEDP EDRKPEDWDE RPKIADPDAV 300
KPDDWDEDAP SKIPDEEATK PEGWLDDEPE YIPDPDAEKP EDWDEDMDGE WEAPQIANPK 360
CESAPGCGVW QRPMIDNPNY KGKWKPPMID NPNYQGIWKP RKIPNPDFFE DLEPFRMTPF 420
SAIGLELWSM TSDIFFDNFI ISGDRRVVDD WANDGWGLKK AADGAAEPGV VGQMLEAAEE 480
RPWLWVVYIL TVALPVFLVI LFCCSGKKQS NAMEYKKTDA PQPDVKDEEG KEEEKNKGDE 540
EEEEEKLEEK QKSDAEEDGG TGSQDEEDSK PKAEEDEILN RSPRNRKPRR E 591 
Gene Ontology
 GO:0030424; C:axon; IDA:RGD.
 GO:0032839; C:dendrite cytoplasm; IDA:RGD.
 GO:0043197; C:dendritic spine; IDA:RGD.
 GO:0005783; C:endoplasmic reticulum; IDA:UniProtKB.
 GO:0005789; C:endoplasmic reticulum membrane; IEA:UniProtKB-SubCell.
 GO:0016021; C:integral to membrane; IEA:UniProtKB-KW.
 GO:0042470; C:melanosome; IEA:UniProtKB-SubCell.
 GO:0043025; C:neuronal cell body; IDA:RGD.
 GO:0043234; C:protein complex; IDA:RGD.
 GO:0005840; C:ribosome; IDA:RGD.
 GO:0034185; F:apolipoprotein binding; IDA:RGD.
 GO:0005509; F:calcium ion binding; IEA:InterPro.
 GO:0035255; F:ionotropic glutamate receptor binding; IDA:RGD.
 GO:0051082; F:unfolded protein binding; IMP:RGD.
 GO:0007568; P:aging; IEP:RGD.
 GO:0061077; P:chaperone-mediated protein folding; IMP:RGD.
 GO:0072583; P:clathrin-mediated endocytosis; ISS:UniProtKB.
 GO:0048488; P:synaptic vesicle endocytosis; ISS:UniProtKB. 
Interpro
 IPR001580; Calret/calnex.
 IPR018124; Calret/calnex_CS.
 IPR009033; Calreticulin/calnexin_P_dom.
 IPR008985; ConA-like_lec_gl_sf.
 IPR013320; ConA-like_subgrp. 
Pfam
 PF00262; Calreticulin 
SMART
  
PROSITE
 PS00803; CALRETICULIN_1
 PS00804; CALRETICULIN_2
 PS00805; CALRETICULIN_REPEAT 
PRINTS
 PR00626; CALRETICULIN.