logo CaMPDB: Calpain for Modulatory Proteolysis Database

SB0022 : Cortactin

[ CaMP Format ]

* Basic Information

OrganismHomo sapiens (human)
Protein Namessrc substrate cortactin isoform a [Homo sapiens]; src substrate cortactin isoform a; oncogene EMS1; ems1 sequence (mammary tumor and squamous cell carcinoma-associated (p80/85 src substrate); 1110020L01Rik; amplaxin; Src substrate cortactin; Amplaxin; Oncogene EMS1
Gene NamesCTTN; EMS1; cortactin
Gene Locus11q13; chromosome 11
GO FunctionNot available
Entrez Protein Entrez Nucleotide Entrez Gene UniProt OMIM HGNC HPRD KEGG
NP_005222 NM_005231 2017 Q14247 164765 HGNC:3338 01268 hsa:2017

* Information From OMIM

Description: Cortactin is a multidomain protein that functions as a key regulator of the actin cytoskeleton. It has roles in many actin-based cellular processes, including cell migration and invasion, tumor cell metastasis, and endocytosis (summary by Tegtmeyer et al., 2011).

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* Structure Information

1. Primary Information

Length: 550 aa

Average Mass: 61.585 kDa

Monoisotopic Mass: 61.549 kDa

2. Domain Information

Annotated Domains: interpro / pfam / smart / prosite

Computationally Assigned Domains (Pfam+HMMER):

domain namebeginendscoree-value
TMEM210 family 1. 7910350.00.0
TMEM210 family 2. 12014054.00.1
TMEM210 family 3. 14717544.00.0
TMEM210 family 4. 18521445.00.0
TMEM210 family 5. 22924652.00.0
TMEM210 family 6. 26428550.00.0
TMEM210 family 7. 29832247.00.0
--- cleavage 336 ---
Protein of unknown function (DUF1682) 1. 342399251.015.6
--- cleavage 346 (inside Protein of unknown function (DUF1682) 342..399) ---
--- cleavage 351 (inside Protein of unknown function (DUF1682) 342..399) ---
--- cleavage 358 (inside Protein of unknown function (DUF1682) 342..399) ---
Variant SH3 domain 1. 4975472.00.0

3. Sequence Information

Fasta Sequence: SB0022.fasta

Amino Acid Sequence and Secondary Structures (PsiPred):

4. 3D Information

Known Structures in PDB: 1X69 (NMR; -; A=485-550), 2D1X (X-ray; 190 A; A/B/C/D=490-550)

* Cleavage Information

4 [sites] cleaved by Calpain 2

Source Reference: [PubMed ID: 16280362] Perrin BJ, Amann KJ, Huttenlocher A, Proteolysis of cortactin by calpain regulates membrane protrusion during cell migration. Mol Biol Cell. 2006 Jan;17(1):239-50. Epub 2005 Nov 9.

Cleavage sites (±10aa)

[Site 1] VTQVSSAYQK336-TVPVEAVTSK

Lys336 Thr

P10 P9 P8 P7 P6 P5 P4 P3 P2 P1
Val327Thr328Gln329Val330Ser331Ser332Ala333Tyr334Gln335Lys336
P1' P2' P3' P4' P5' P6' P7' P8' P9' P10'
Thr337Val338Pro339Val340Glu341Ala342Val343Thr344Ser345Lys346

Sequence conservation (by blast)

[Site 2] TVPVEAVTSK346-TSNIRANFEN

Lys346 Thr

P10 P9 P8 P7 P6 P5 P4 P3 P2 P1
Thr337Val338Pro339Val340Glu341Ala342Val343Thr344Ser345Lys346
P1' P2' P3' P4' P5' P6' P7' P8' P9' P10'
Thr347Ser348Asn349Ile350Arg351Ala352Asn353Phe354Glu355Asn356

Sequence conservation (by blast)

[Site 3] AVTSKTSNIR351-ANFENLAKEK

Arg351 Ala

P10 P9 P8 P7 P6 P5 P4 P3 P2 P1
Ala342Val343Thr344Ser345Lys346Thr347Ser348Asn349Ile350Arg351
P1' P2' P3' P4' P5' P6' P7' P8' P9' P10'
Ala352Asn353Phe354Glu355Asn356Leu357Ala358Lys359Glu360Lys361

Sequence conservation (by blast)

[Site 4] NIRANFENLA358-KEKEQEDRRK

Ala358 Lys

P10 P9 P8 P7 P6 P5 P4 P3 P2 P1
Asn349Ile350Arg351Ala352Asn353Phe354Glu355Asn356Leu357Ala358
P1' P2' P3' P4' P5' P6' P7' P8' P9' P10'
Lys359Glu360Lys361Glu362Gln363Glu364Asp365Arg366Arg367Lys368

Sequence conservation (by blast)

* References

[PubMed ID: 24469447] Han SP, Gambin Y, Gomez GA, Verma S, Giles N, Michael M, Wu SK, Guo Z, Johnston W, Sierecki E, Parton RG, Alexandrov K, Yap AS, Cortactin scaffolds Arp2/3 and WAVE2 at the epithelial zonula adherens. J Biol Chem. 2014 Mar 14;289(11):7764-75. doi: 10.1074/jbc.M113.544478. Epub 2014

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