P27321 (ICAL_RAT) Reviewed, UniProtKB/Swiss-Prot
Last modified
April 3, 2013.
Version 98.
History...
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Calpastatin Alternative name(s): Calpain inhibitor | ||
| Gene names |
| ||
| Organism | Rattus norvegicus (Rat) [Reference proteome] | ||
| Taxonomic identifier | 10116 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Rattus![]() |
Protein attributes
| Sequence length | 713 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Specific inhibition of calpain (calcium-dependent cysteine protease). Plays a key role in postmortem tenderization of meat and have been proposed to be involved in muscle protein degradation in living tissue. |
| Domain | Each of the four flexible inhibitory domains can inhibit one calcium-bound calpain molecule by occupying both sides of the active site. Ref.9 |
| Sequence similarities | Belongs to the protease inhibitor I27 (calpastatin) family. [View classification] |
| Sequence caution | The sequence AAK29411.1 differs from that shown. Reason: Erroneous initiation. The sequence AAK29412.1 differs from that shown. Reason: Erroneous initiation. The sequence CAA40053.1 differs from that shown. Reason: Erroneous initiation. Translation N-terminally extended. The sequence CAA40053.1 differs from that shown. Reason: Frameshift at positions 640 and 647. The sequence CAA73915.1 differs from that shown. Reason: Erroneous initiation. The sequence CAA73916.1 differs from that shown. Reason: Erroneous initiation. The sequence CAA73917.1 differs from that shown. Reason: Erroneous initiation. |
Ontologies
| Keywords | |
|---|---|
| Coding sequence diversity | Alternative splicing |
| Domain | Repeat |
| Molecular function | Protease inhibitor Thiol protease inhibitor |
| PTM | Phosphoprotein |
| Technical term | 3D-structure Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Molecular_function | cysteine-type endopeptidase inhibitor activity Inferred from electronic annotation. Source: UniProtKB-KW |
| Complete GO annotation... | |
Alternative products
| This entry describes 7 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: P27321-1) Also known as: A; This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2 (identifier: P27321-2) Also known as: B; The sequence of this isoform differs from the canonical sequence as follows: 98-135: Missing. | ||||||
| Isoform 3 (identifier: P27321-3) Also known as: C; The sequence of this isoform differs from the canonical sequence as follows: 166-188: Missing. | ||||||
| Isoform 4 (identifier: P27321-4) The sequence of this isoform differs from the canonical sequence as follows: 67-79: Missing. 98-135: Missing. | ||||||
| Isoform 5 (identifier: P27321-5) The sequence of this isoform differs from the canonical sequence as follows: 98-135: Missing. 166-188: Missing. | ||||||
| Isoform 6 (identifier: P27321-6) The sequence of this isoform differs from the canonical sequence as follows: 67-79: Missing. 98-135: Missing. 166-188: Missing. | ||||||
| Isoform 7 (identifier: P27321-7) The sequence of this isoform differs from the canonical sequence as follows: 1-177: Missing. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | |||||||||||||||||||||
Molecule processing | ||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 713 | 713 | Calpastatin | PRO_0000147635 | ||||||||||||||||||||||
Regions | ||||||||||||||||||||||||||
| Repeat | 208 – 260 | 53 | Inhibitory domain 1 | |||||||||||||||||||||||
| Repeat | 341 – 393 | 53 | Inhibitory domain 2 | |||||||||||||||||||||||
| Repeat | 451 – 504 | 54 | Inhibitory domain 3 | |||||||||||||||||||||||
| Repeat | 588 – 641 | 54 | Inhibitory domain 4 | |||||||||||||||||||||||
Amino acid modifications | ||||||||||||||||||||||||||
| Modified residue | 11 | 1 | Phosphoserine By similarity | |||||||||||||||||||||||
| Modified residue | 122 | 1 | Phosphoserine By similarity | |||||||||||||||||||||||
| Modified residue | 171 | 1 | Phosphoserine By similarity | |||||||||||||||||||||||
| Modified residue | 260 | 1 | Phosphoserine Ref.7 | |||||||||||||||||||||||
| Modified residue | 281 | 1 | Phosphoserine Ref.7 | |||||||||||||||||||||||
| Modified residue | 401 | 1 | Phosphoserine By similarity | |||||||||||||||||||||||
| Modified residue | 403 | 1 | Phosphoserine By similarity | |||||||||||||||||||||||
| Modified residue | 410 | 1 | Phosphoserine By similarity | |||||||||||||||||||||||
| Modified residue | 580 | 1 | Phosphoserine By similarity | |||||||||||||||||||||||
| Modified residue | 582 | 1 | Phosphoserine By similarity | |||||||||||||||||||||||
Natural variations | ||||||||||||||||||||||||||
| Alternative sequence | 1 – 177 | 177 | Missing in isoform 7. | VSP_026971 | ||||||||||||||||||||||
| Alternative sequence | 67 – 79 | 13 | Missing in isoform 4 and isoform 6. | VSP_000753 | ||||||||||||||||||||||
| Alternative sequence | 98 – 135 | 38 | Missing in isoform 2, isoform 4, isoform 5 and isoform 6. | VSP_000754 | ||||||||||||||||||||||
| Alternative sequence | 166 – 188 | 23 | Missing in isoform 3, isoform 5 and isoform 6. | VSP_026972 | ||||||||||||||||||||||
Experimental info | ||||||||||||||||||||||||||
| Mutagenesis | 613 | 1 | G → A: 2.9-fold increase in the IC(50). Ref.9 | |||||||||||||||||||||||
| Mutagenesis | 613 | 1 | G → FG: Turns CAST from an inhibitor into a substrate. Ref.9 | |||||||||||||||||||||||
| Sequence conflict | 161 | 1 | K → E in CAA40053. Ref.1 | |||||||||||||||||||||||
| Sequence conflict | 161 | 1 | K → E in AAK29411. Ref.5 | |||||||||||||||||||||||
| Sequence conflict | 209 | 1 | N → S in CAA73917. Ref.4 | |||||||||||||||||||||||
| Sequence conflict | 314 | 1 | K → E in AAK29412. Ref.5 | |||||||||||||||||||||||
| Sequence conflict | 463 | 1 | V → G in ABA86879. Ref.1 | |||||||||||||||||||||||
| Sequence conflict | 463 | 1 | V → G in ABA86880. Ref.1 | |||||||||||||||||||||||
| Sequence conflict | 463 | 1 | V → G in ABA86881. Ref.1 | |||||||||||||||||||||||
| Sequence conflict | 463 | 1 | V → G in ABA86882. Ref.1 | |||||||||||||||||||||||
| Sequence conflict | 463 | 1 | V → G in ABA86883. Ref.1 | |||||||||||||||||||||||
| Sequence conflict | 463 | 1 | V → G in ABA86884. Ref.1 | |||||||||||||||||||||||
| Sequence conflict | 463 | 1 | V → G in ABB90254. Ref.1 | |||||||||||||||||||||||
| Sequence conflict | 463 | 1 | V → G in CAA73916. Ref.4 | |||||||||||||||||||||||
| Sequence conflict | 481 | 1 | T → A in CAA73917. Ref.4 | |||||||||||||||||||||||
| Sequence conflict | 518 | 1 | D → G in CAA73917. Ref.4 | |||||||||||||||||||||||
| Sequence conflict | 611 | 1 | K → R in CAA73915. Ref.4 | |||||||||||||||||||||||
| Sequence conflict | 646 | 1 | L → P in AAH91239. Ref.2 | |||||||||||||||||||||||
| Sequence conflict | 646 | 1 | L → P in CAA73915. Ref.4 | |||||||||||||||||||||||
| Sequence conflict | 646 | 1 | L → P in CAA73917. Ref.4 | |||||||||||||||||||||||
| Sequence conflict | 646 | 1 | L → P in AAK29411. Ref.5 | |||||||||||||||||||||||
| Sequence conflict | 646 | 1 | L → P in AAK29412. Ref.5 | |||||||||||||||||||||||
Secondary structure | ||||||||||||||||||||||||||
Helix Strand Turn | ||||||||||||||||||||||||||
| Helix | 195 – 199 | 5 | ||||||||||||||||||||||||
| Helix | 236 – 238 | 3 | ||||||||||||||||||||||||
| Helix | 241 – 247 | 7 | ||||||||||||||||||||||||
| Helix | 271 – 274 | 4 | ||||||||||||||||||||||||
| Turn | 275 – 277 | 3 | ||||||||||||||||||||||||
| Helix | 573 – 581 | 9 | ||||||||||||||||||||||||
| Helix | 616 – 618 | 3 | ||||||||||||||||||||||||
| Helix | 621 – 627 | 7 | ||||||||||||||||||||||||
| Helix | 652 – 659 | 8 | ||||||||||||||||||||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Multiple rat brain calpastatin forms are produced by distinct starting points and alternative splicing of the N-terminal exons." De Tullio R., Averna M., Stifanese R., Parr T., Bardsley R.G., Pontremoli S., Melloni E. Arch. Biochem. Biophys. 465:148-156(2007) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1; 2; 3; 4; 5; 6 AND 7). Strain: Sprague-Dawley. |
| [2] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 2). Tissue: Liver. |
| [3] | "Rat calpastatin has diverged primary sequence from other mammalian calpastatins but retains functionally important sequences." Ishida S., Emori Y., Suzuki K. Biochim. Biophys. Acta 1088:436-438(1991) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 55-713 (ISOFORM 1). Tissue: Liver. |
| [4] | "Rat brain contains multiple mRNAs for calpastatin." De Tullio R., Sparatore B., Salamino F., Melloni E., Pontremoli S. FEBS Lett. 422:113-117(1998) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 55-713 (ISOFORMS 1; 2 AND 5). Strain: Sprague-Dawley. Tissue: Brain. |
| [5] | "Hypoxic induction of two rat cardiac calpastatin cDNAs." Risbood M.P., Lin H., Lee T. Submitted (FEB-2001) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 59-713 (ISOFORMS 1 AND 5). Strain: Sprague-Dawley. Tissue: Heart. |
| [6] | "Multiple forms of rat calpastatin cDNA in the coding region of functionally unknown amino-terminal domain." Lee W.J., Hatanaka M., Maki M. Biochim. Biophys. Acta 1129:251-253(1992) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 60-188 (ISOFORMS 1; 2 AND 4). Strain: Fischer. |
| [7] | "Quantitative phosphoproteomics of vasopressin-sensitive renal cells: regulation of aquaporin-2 phosphorylation at two sites." Hoffert J.D., Pisitkun T., Wang G., Shen R.-F., Knepper M.A. Proc. Natl. Acad. Sci. U.S.A. 103:7159-7164(2006) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-260 AND SER-281, MASS SPECTROMETRY. Tissue: Renal collecting duct. |
| [8] | "Concerted multi-pronged attack by calpastatin to occlude the catalytic cleft of heterodimeric calpains." Moldoveanu T., Gehring K., Green D.R. Nature 456:404-408(2008) [PubMed] [Europe PMC] [Abstract] Cited for: X-RAY CRYSTALLOGRAPHY (2.95 ANGSTROMS) OF 193-278 IN COMPLEX WITH CAPN2 AND CAPNS1. |
| [9] | "Calcium-bound structure of calpain and its mechanism of inhibition by calpastatin." Hanna R.A., Campbell R.L., Davies P.L. Nature 456:409-412(2008) [PubMed] [Europe PMC] [Abstract] Cited for: X-RAY CRYSTALLOGRAPHY (2.4 ANGSTROMS) OF 571-664 IN COMPLEX WITH CAPN2 AND CAPNS1, INHIBITORY DOMAINS, MUTAGENESIS OF GLY-613. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EMBL GenBank DDBJ | DQ186624 mRNA. Translation: ABA86879.1. DQ186625 mRNA. Translation: ABA86880.1. DQ186626 mRNA. Translation: ABA86881.1. DQ186627 mRNA. Translation: ABA86882.1. DQ186628 mRNA. Translation: ABA86883.1. DQ186629 mRNA. Translation: ABA86884.1. DQ287975 mRNA. Translation: ABB90254.1. BC091239 mRNA. Translation: AAH91239.1. X56729 mRNA. Translation: CAA40053.1. Sequence problems. Y13587 mRNA. Translation: CAA73915.1. Different initiation. Y13588 mRNA. Translation: CAA73916.1. Different initiation. Y13589 mRNA. Translation: CAA73917.1. Different initiation. AF346597 mRNA. Translation: AAK29411.1. Different initiation. AF346598 mRNA. Translation: AAK29412.1. Different initiation. X62520 mRNA. Translation: CAA44386.1. | ||||||||||||||||||
| IPI | IPI00195926. IPI00368326. IPI00555292. IPI00782263. IPI00855218. IPI00855234. IPI00858353. | ||||||||||||||||||
| PIR | S15074. S20611. | ||||||||||||||||||
| RefSeq | NP_001028887.1. NM_001033715.1. NP_001028888.1. NM_001033716.1. NP_445747.2. NM_053295.2. | ||||||||||||||||||
| UniGene | Rn.17481. | ||||||||||||||||||
3D structure databases | |||||||||||||||||||
| PDBe RCSB PDB PDBj |
| ||||||||||||||||||
| ModBase | Search... | ||||||||||||||||||
Protein-protein interaction databases | |||||||||||||||||||
| DIP | DIP-44338N. | ||||||||||||||||||
| MINT | MINT-4820577. | ||||||||||||||||||
Protein family/group databases | |||||||||||||||||||
| MEROPS | I27.001. | ||||||||||||||||||
PTM databases | |||||||||||||||||||
| PhosphoSite | P27321. | ||||||||||||||||||
Proteomic databases | |||||||||||||||||||
| PaxDb | P27321. | ||||||||||||||||||
| PRIDE | P27321. | ||||||||||||||||||
Protocols and materials databases | |||||||||||||||||||
| StructuralBiologyKnowledgebase | Search... | ||||||||||||||||||
Genome annotation databases | |||||||||||||||||||
| Ensembl | ENSRNOT00000062054; ENSRNOP00000058758; ENSRNOG00000010286. | ||||||||||||||||||
| GeneID | 25403. | ||||||||||||||||||
| KEGG | rno:25403. | ||||||||||||||||||
Organism-specific databases | |||||||||||||||||||
| CTD | 831. | ||||||||||||||||||
| RGD | 2278. Cast. | ||||||||||||||||||
Phylogenomic databases | |||||||||||||||||||
| eggNOG | NOG25116. | ||||||||||||||||||
| GeneTree | ENSGT00390000002993. | ||||||||||||||||||
| HOVERGEN | HBG000183. | ||||||||||||||||||
| KO | K04281. | ||||||||||||||||||
| OrthoDB | EOG4H463V. | ||||||||||||||||||
Gene expression databases | |||||||||||||||||||
| ArrayExpress | P27321. | ||||||||||||||||||
| Genevestigator | P27321. | ||||||||||||||||||
| GermOnline | ENSRNOG00000010286. Rattus norvegicus. | ||||||||||||||||||
Family and domain databases | |||||||||||||||||||
| InterPro | IPR026998. Calpastatin. IPR001259. Prot_inh_calpain. [Graphical view] | ||||||||||||||||||
| PANTHER | PTHR10077. PTHR10077. 1 hit. | ||||||||||||||||||
| Pfam | PF00748. Calpain_inhib. 4 hits. [Graphical view] | ||||||||||||||||||
| ProtoNet | Search... | ||||||||||||||||||
Other | |||||||||||||||||||
| EvolutionaryTrace | P27321. | ||||||||||||||||||
| NextBio | 606501. | ||||||||||||||||||
Entry information
| Entry name | ICAL_RAT | ||||||||
| Accession | Primary (citable) accession number: P27321 Secondary accession number(s): A5GXY4 Q99MG2 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| PDB cross-references Index of Protein Data Bank (PDB) cross-references |
| SIMILARITY comments Index of protein domains and families |

Clusters with
