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Protein

Calpain-2 catalytic subunit

Gene

CAPN2

Organism
Gallus gallus (Chicken)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at transcript leveli

Functioni

Calcium-regulated non-lysosomal thiol-protease which catalyze limited proteolysis of substrates involved in cytoskeletal remodeling and signal transduction.By similarity

Catalytic activityi

Broad endopeptidase specificity.

Cofactori

Ca2+By similarityNote: Binds 7 Ca2+ ions.By similarity

Enzyme regulationi

Activated by 200-1000 micromolar concentrations of calcium and inhibited by calpastatin.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi91Calcium 3; via carbonyl oxygenBy similarity1
Metal bindingi96Calcium 3By similarity1
Active sitei105By similarity1
Metal bindingi175Calcium 3By similarity1
Metal bindingi229Calcium 2By similarity1
Metal bindingi230Calcium 2By similarity1
Active sitei262By similarity1
Active sitei286By similarity1
Metal bindingi292Calcium 4By similarity1
Metal bindingi299Calcium 4By similarity1
Metal bindingi323Calcium 4; via carbonyl oxygenBy similarity1
Metal bindingi542Calcium 5; via carbonyl oxygenBy similarity1
Metal bindingi545Calcium 5By similarity1
Metal bindingi547Calcium 5; via carbonyl oxygenBy similarity1
Metal bindingi552Calcium 5By similarity1
Metal bindingi585Calcium 6By similarity1
Metal bindingi587Calcium 6By similarity1
Metal bindingi589Calcium 6; via carbonyl oxygenBy similarity1
Metal bindingi591Calcium 6; via carbonyl oxygenBy similarity1
Metal bindingi596Calcium 6By similarity1
Metal bindingi615Calcium 7By similarity1
Metal bindingi617Calcium 7By similarity1
Metal bindingi619Calcium 7; via carbonyl oxygenBy similarity1
Metal bindingi621Calcium 7; via carbonyl oxygenBy similarity1
Metal bindingi626Calcium 7By similarity1
Metal bindingi658Calcium 1By similarity1
Metal bindingi661Calcium 1By similarity1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Calcium bindingi585 – 5961Add BLAST12
Calcium bindingi615 – 6262Add BLAST12

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionHydrolase, Protease, Thiol protease
LigandCalcium, Metal-binding

Enzyme and pathway databases

BRENDAi3.4.22.53. 1306.

Protein family/group databases

MEROPSiC02.002.

Names & Taxonomyi

Protein namesi
Recommended name:
Calpain-2 catalytic subunit (EC:3.4.22.53)
Alternative name(s):
Calcium-activated neutral proteinase 2
Short name:
CANP 2
Calpain M-type
Calpain-2 large subunit
Millimolar-calpain
Short name:
M-calpain
Gene namesi
Name:CAPN2
OrganismiGallus gallus (Chicken)
Taxonomic identifieri9031 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiArchelosauriaArchosauriaDinosauriaSaurischiaTheropodaCoelurosauriaAvesNeognathaeGalloanseraeGalliformesPhasianidaePhasianinaeGallus
Proteomesi
  • UP000000539 Componenti: Unplaced

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Cell membrane, Cytoplasm, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemovedBy similarity
PropeptideiPRO_00000264952 – 19Anchors to the small subunitSequence analysisAdd BLAST18
ChainiPRO_000002649620 – 700Calpain-2 catalytic subunitAdd BLAST681

Proteomic databases

PaxDbiQ92178.

Expressioni

Tissue specificityi

Ubiquitous.

Interactioni

Subunit structurei

Forms a heterodimer with a small (regulatory) subunit (CAPNS1).

GO - Molecular functioni

  • protein tyrosine kinase binding Source: AgBase

Protein-protein interaction databases

BioGridi676236. 2 interactors.
STRINGi9031.ENSGALP00000015225.

Structurei

3D structure databases

ProteinModelPortaliQ92178.
SMRiQ92178.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini45 – 344Calpain catalyticPROSITE-ProRule annotationAdd BLAST300
Domaini572 – 605EF-hand 1PROSITE-ProRule annotationAdd BLAST34
Domaini602 – 637EF-hand 2PROSITE-ProRule annotationAdd BLAST36
Domaini667 – 700EF-hand 3PROSITE-ProRule annotationAdd BLAST34

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni345 – 514Domain IIIAdd BLAST170
Regioni515 – 529LinkerAdd BLAST15
Regioni530 – 700Domain IVAdd BLAST171

Sequence similaritiesi

Belongs to the peptidase C2 family.Curated

Keywords - Domaini

Repeat

Phylogenomic databases

eggNOGiKOG0045. Eukaryota.
ENOG410XP0B. LUCA.
HOGENOMiHOG000232035.
HOVERGENiHBG012645.
InParanoidiQ92178.
KOiK03853.
PhylomeDBiQ92178.

Family and domain databases

CDDicd00214. Calpain_III. 1 hit.
cd00044. CysPc. 1 hit.
InterProiView protein in InterPro
IPR033883. C2_III.
IPR022684. Calpain_cysteine_protease.
IPR022682. Calpain_domain_III.
IPR022683. Calpain_III.
IPR029539. CAPN2.
IPR011992. EF-hand-dom_pair.
IPR018247. EF_Hand_1_Ca_BS.
IPR002048. EF_hand_dom.
IPR000169. Pept_cys_AS.
IPR001300. Peptidase_C2_calpain_cat.
PANTHERiPTHR10183:SF340. PTHR10183:SF340. 1 hit.
PfamiView protein in Pfam
PF01067. Calpain_III. 1 hit.
PF13833. EF-hand_8. 1 hit.
PF00648. Peptidase_C2. 1 hit.
PRINTSiPR00704. CALPAIN.
SMARTiView protein in SMART
SM00720. calpain_III. 1 hit.
SM00230. CysPc. 1 hit.
SM00054. EFh. 3 hits.
SUPFAMiSSF47473. SSF47473. 1 hit.
SSF49758. SSF49758. 1 hit.
PROSITEiView protein in PROSITE
PS50203. CALPAIN_CAT. 1 hit.
PS00018. EF_HAND_1. 2 hits.
PS50222. EF_HAND_2. 3 hits.
PS00139. THIOL_PROTEASE_CYS. 1 hit.

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q92178-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAGMAAALAK ERAAAAGAGR HGQAVPYLGQ DFGALRRECL QGGRLFHDPS
60 70 80 90 100
FPAGPAALGY RELGPNSYKT KGVVWCRPTE LCSCPRFIAG GATRTDICQG
110 120 130 140 150
ALGDCWLLAA IASLTLNEEI LARVVPRDQS FQDEYAGIFH FQFWQYGEWV
160 170 180 190 200
DVVVDDRLPT KNGELLFVHS AEGSEFWSAL LEKAYAKLNG SYEALSGGTT
210 220 230 240 250
TEGFEDFTGG IAEWYELQKA PPNLFKIIQK ALQKGSLLGC SIDITSAAET
260 270 280 290 300
EAVTSQKLVK GHAYSVTGAE EVNFRGSIQK LIRIRNPWGE VEWTGKWNDN
310 320 330 340 350
CPNWSGVDPE VRERLTRRHE DGEFWMAFND FLRHYSRLEI CNLTPDTLAS
360 370 380 390 400
DRYKKWSLLK LDGNWRRGAT AGGCRNYPNT FWTNPQYLIK LEEEDEDPDD
410 420 430 440 450
PEGGCTFLIG LIQKHRRKQR KMGEDMHTIG FAIYEVPPEF SGQTNIHLSK
460 470 480 490 500
NFFLTNKARE KSNTFINLRE VLNRFKLPAG EYIIVPSTFE PNLNGDFCLR
510 520 530 540 550
VFSEKNANST VIDDEIEANF EETEIDEDDI EPSFKKLFGQ LAGSDAEISA
560 570 580 590 600
FELRSILNKI LAKRQDIKSD GFSIETCKIM VDLLDNDGSG KLGLKEFHTL
610 620 630 640 650
WTKIQKYQKI YREIDVDRSG TMNSYEMRRA LEAAGFKLSC QLHQIIVARF
660 670 680 690 700
ADEDLIIDFD NCVRCLIRLE TLYKMFRKLD TEKTGTIELN LINWLFFTVI
Length:700
Mass (Da):79,229
Last modified:January 23, 2007 - v3
Checksum:iC3AEDB39CCB56D3B
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
D38026 mRNA. Translation: BAA07228.1.
PIRiS57194.
RefSeqiNP_990411.1. NM_205080.1.
UniGeneiGga.3677.

Genome annotation databases

GeneIDi395963.
KEGGigga:395963.

Similar proteinsi

Entry informationi

Entry nameiCAN2_CHICK
AccessioniPrimary (citable) accession number: Q92178
Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 1, 1997
Last sequence update: January 23, 2007
Last modified: August 30, 2017
This is version 141 of the entry and version 3 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Peptidase families
    Classification of peptidase families and list of entries
  2. SIMILARITY comments
    Index of protein domains and families