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Reviewed, UniProtKB/Swiss-Prot O96017 (CHK2_HUMAN)

Last modified June 16, 2009. Version 114. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (7) | Third-party data | Customize display text xml rdf/xml gff fasta
Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Binary interactions · Alternative products · Sequence annotation (Features) · Sequences · References · Web resources · Cross-references · Entry information · Relevant documents

Names and origin

Protein namesRecommended name:
    Serine/threonine-protein kinase Chk2
    EC=2.7.11.1
Alternative name(s):
    Cds1
Gene names
Name: CHEK2
Synonyms: CHK2, RAD53
OrganismHomo sapiens (Human)
Taxonomic identifier9606 [NCBI]
Taxonomic lineageEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo

Protein attributes

Sequence length543 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is not processed.
Protein existenceEvidence at protein level.

General annotation (Comments)

Function

Regulates cell cycle checkpoints and apoptosis in response to DNA damage, particularly to DNA double-strand breaks. Inhibits CDC25C phosphatase by phosphorylation on 'Ser-216', preventing the entry into mitosis. May also play a role in meiosis. Regulates the TP53 tumor suppressor through phosphorylation at 'Thr-18' and 'Ser-20'. Ref.2 Ref.3 Ref.4

Catalytic activity

ATP + a protein = ADP + a phosphoprotein.

Cofactor

Magnesium.

Enzyme regulation

Rapidly phosphorylated on Thr-68 by MLTK in response to DNA damage and to replication block. Kinase activity is also up-regulated by autophosphorylation. Ref.11

Subcellular location

Isoform 2: Nucleus. Note: Isoform 10 is present throughout the cell. Ref.4

Isoform 4: Nucleus. Ref.4

Isoform 7: Nucleus. Ref.4

Isoform 9: Nucleus. Ref.4

Isoform 12: Nucleus. Ref.4

Tissue specificity

High expression is found in testis, spleen, colon and peripheral blood leukocytes. Low expression is found in other tissues.

Involvement in disease

Defects in CHEK2 are associated with Li-Fraumeni syndrome 2 (LFS2) [MIM:609265]; a highly penetrant familial cancer phenotype usually associated with inherited mutations in p53/TP53. Ref.15

Defects in CHEK2 are found in some patients with prostate cancer (CaP) [MIM:176807].

Defects in CHEK2 are found in some patients with osteosarcoma (OSRC) [MIM:259500].

Sequence similarities

Belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family. CHK2 subfamily.

Contains 1 FHA domain.

Contains 1 protein kinase domain.

Alternative products

This entry describes 12 isoforms produced by alternative splicing. [Align] [Select]
Isoform 1 (identifier: O96017-1)

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: O96017-2)

Also known as: ins2;

The sequence of this isoform differs from the canonical sequence as follows:
     198-224: VFVFFDLTVDDQSVYPKALRDEYIMSK → EKILKIYSLSRFSKIRRGAVAHVFNPS
     228-234: SGACGEV → GRGWQIT
     235-543: Missing.
Note: Isoform 10 is present throughout the cell. Ref.4 Catalytically inactive.
Isoform 3 (identifier: O96017-3)

Also known as: del2-12;

The sequence of this isoform differs from the canonical sequence as follows:
     107-487: Missing.
Isoform 4 (identifier: O96017-4)

Also known as: del2-3;

The sequence of this isoform differs from the canonical sequence as follows:
     107-197: Missing.
Note: Catalytically active.
Isoform 5 (identifier: O96017-5)

Also known as: del4;

The sequence of this isoform differs from the canonical sequence as follows:
     199-203: FVFFD → VPVER
     204-543: Missing.
Isoform 6 (identifier: O96017-6)

Also known as: sub3;

The sequence of this isoform differs from the canonical sequence as follows:
     150-165: VGPKNSYIAYIEDHSG → ENLSCPYRIWFNFCLF
     166-543: Missing.
Isoform 7 (identifier: O96017-7)

Also known as: del9-12;

The sequence of this isoform differs from the canonical sequence as follows:
     337-339: YLH → MKT
     340-543: Missing.
Note: Catalytically inactive.
Isoform 8 (identifier: O96017-8)

Also known as: del7;

The sequence of this isoform differs from the canonical sequence as follows:
     283-289: PCIIKIK → DGRGRAV
     290-543: Missing.
Isoform 9 (identifier: O96017-9)

Also known as: insx;

The sequence of this isoform differs from the canonical sequence as follows:
     107-107: E → ETESGHVTQSDLELLLSSDPPASASQSAGIRGVRHHPRPVCSLK
Note: Retains low level of catalytic activity.
Isoform 10 (identifier: O96017-10)

Also known as: iso2;

The sequence of this isoform differs from the canonical sequence as follows:
     131-147: KRTDKYRTYSKKHFRIF → EFRSYSFYLP
     148-543: Missing.
Note: Catalytically inactive.
Isoform 11 (identifier: O96017-11)

Also known as: iso1;

The sequence of this isoform differs from the canonical sequence as follows:
     75-392: Missing.
Isoform 12 (identifier: O96017-12)

Also known as: del9;

The sequence of this isoform differs from the canonical sequence as follows:
     337-365: Missing.
Note: Catalytically inactive.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 543543Serine/threonine-protein kinase Chk2
PRO_0000085858

Regions

Domain113 – 17563FHA
Domain220 – 486267Protein kinase
Nucleotide binding226 – 2349ATP By similarity

Sites

Active site3471Proton acceptor
Binding site2491ATP By similarity

Amino acid modifications

Modified residue681Phosphothreonine; by MLTK Ref.11

Natural variations

Alternative sequence75 – 392318Missing in isoform 11.
VSP_014556
Alternative sequence107 – 487381Missing in isoform 3.
VSP_014559
Alternative sequence107 – 19791Missing in isoform 4.
VSP_014558
Alternative sequence1071E → ETESGHVTQSDLELLLSSDP PASASQSAGIRGVRHHPRPV CSLK in isoform 9.
VSP_014557
Alternative sequence131 – 14717KRTDK…HFRIF → EFRSYSFYLP in isoform 10.
VSP_014560
Alternative sequence148 – 543396Missing in isoform 10.
VSP_014561
Alternative sequence150 – 16516VGPKN…EDHSG → ENLSCPYRIWFNFCLF in isoform 6.
VSP_014562
Alternative sequence166 – 543378Missing in isoform 6.
VSP_014563
Alternative sequence198 – 22427VFVFF…YIMSK → EKILKIYSLSRFSKIRRGAV AHVFNPS in isoform 2.
VSP_014564
Alternative sequence199 – 2035FVFFD → VPVER in isoform 5.
VSP_014565
Alternative sequence204 – 543340Missing in isoform 5.
VSP_014566
Alternative sequence228 – 2347SGACGEV → GRGWQIT in isoform 2.
VSP_014567
Alternative sequence235 – 543309Missing in isoform 2.
VSP_014568
Alternative sequence283 – 2897PCIIKIK → DGRGRAV in isoform 8.
VSP_014569
Alternative sequence290 – 543254Missing in isoform 8.
VSP_014570
Alternative sequence337 – 36529Missing in isoform 12.
VSP_014571
Alternative sequence337 – 3393YLH → MKT in isoform 7.
VSP_014572
Alternative sequence340 – 543204Missing in isoform 7.
VSP_014573
Natural variant171A → S in osteosarcoma; somatic mutation; might influence susceptibility to breast cancer; does not cause protein abrogation in familial colorectal cancer. Ref.18
VAR_019101
Natural variant591T → K in multiple cancers. Ref.16
VAR_026630
Natural variant641E → K in prostate cancer; somatic mutation. Ref.19
VAR_019107
Natural variant851P → L in osteosarcoma; is a neutral allele among Ashkenazi Jewish women. dbSNP rs17883862. Ref.18 Ref.8 Ref.27
VAR_019102
Natural variant1171R → G Might influence susceptibility to breast cancer; does not cause protein abrogation in familial colorectal cancer. Ref.17 Ref.20 Ref.29
VAR_022461
Natural variant1371R → Q Might influence susceptibility to breast cancer; does not cause protein abrogation in familial colorectal cancer. Ref.17 Ref.29
VAR_022462
Natural variant1451R → P in prostate cancer; somatic mutation. Ref.15 Ref.19 Ref.20 Ref.29 Ref.13 Ref.23
VAR_019108
Natural variant1451R → W in colon cancer and LFS2; does not cause protein abrogation in familial colorectal cancer. Ref.15 Ref.19 Ref.20 Ref.29 Ref.13 Ref.23
VAR_008554
Natural variant1571I → T Might influence susceptibility to diffferent types of cancer; does not cause protein abrogation in familial colorectal cancer. dbSNP rs17879961. Ref.19 Ref.8 Ref.20 Ref.29 Ref.13 Ref.23 Ref.14 Ref.21 Ref.22 Ref.24 Ref.25 Ref.26 Ref.28
VAR_008555
Natural variant1671G → R in prostate cancer; somatic mutation. Ref.19
VAR_019109
Natural variant1801R → C in prostate cancer; somatic mutation. Ref.19 Ref.17 Ref.29
VAR_019103
Natural variant1801R → H in prostate cancer; somatic mutation. Ref.19 Ref.17 Ref.29
VAR_019110
Natural variant1811R → C in prostate cancer; somatic mutation. Ref.19
VAR_019104
Natural variant1811R → H in prostate cancer; somatic mutation. Ref.19
VAR_019105
Natural variant2391E → K in prostate cancer; germline mutation. Ref.19
VAR_019106
Natural variant2511I → F in prostate cancer; germline mutation. Ref.19
VAR_019111
Natural variant3181R → H in prostate cancer; somatic mutation. Ref.19
VAR_019112
Natural variant3231T → P in prostate cancer; somatic mutation. Ref.19
VAR_019113
Natural variant3271Y → C in prostate cancer; somatic mutation. Ref.19
VAR_019114
Natural variant3471D → N: dbSNP rs28909980.
VAR_029154
Natural variant4061R → H: dbSNP rs299671.
VAR_024572
Natural variant4281S → F Increases breast cancer risk approximately 2-fold among Ashkenazi Jewish women. Ref.27
VAR_022463
Natural variant4361L → M: dbSNP rs17882922. Ref.8
VAR_021117
Natural variant4461N → K: dbSNP rs17880867. Ref.8
VAR_021118
Natural variant4471F → I: dbSNP rs17881473. Ref.8
VAR_021119
Natural variant4481I → S: dbSNP rs17886163. Ref.8
VAR_021120
Natural variant4761T → K in prostate cancer; somatic mutation. Ref.19
VAR_019115
Natural variant5001S → C: dbSNP rs28909981.
VAR_029155
Natural variant5011E → K: dbSNP rs17883172. Ref.8
VAR_021121
Natural variant5121L → V: dbSNP rs17882942. Ref.8
VAR_021122

Experimental info

Mutagenesis681T → A: Loss of activation and phosphorylation. Ref.11
Mutagenesis3471D → A: Loss of kinase activity. Ref.1
Mutagenesis3681D → N: Loss of autophosphorylation activity. Ref.11

Secondary structure

...................................................................... 543
Helix Strand Turn

Details...

Sequences

Sequence LengthMass (Da)Tools
Isoform 1 [UniParc].

Last modified May 1, 1999. Version 1.
Checksum: 28890ACF3C1F3408

FASTA54360,915
        10         20         30         40         50         60 
MSRESDVEAQ QSHGSSACSQ PHGSVTQSQG SSSQSQGISS SSTSTMPNSS QSSHSSSGTL 

        70         80         90        100        110        120 
SSLETVSTQE LYSIPEDQEP EDQEPEEPTP APWARLWALQ DGFANLECVN DNYWFGRDKS 

       130        140        150        160        170        180 
CEYCFDEPLL KRTDKYRTYS KKHFRIFREV GPKNSYIAYI EDHSGNGTFV NTELVGKGKR 

       190        200        210        220        230        240 
RPLNNNSEIA LSLSRNKVFV FFDLTVDDQS VYPKALRDEY IMSKTLGSGA CGEVKLAFER 

       250        260        270        280        290        300 
KTCKKVAIKI ISKRKFAIGS AREADPALNV ETEIEILKKL NHPCIIKIKN FFDAEDYYIV 

       310        320        330        340        350        360 
LELMEGGELF DKVVGNKRLK EATCKLYFYQ MLLAVQYLHE NGIIHRDLKP ENVLLSSQEE 

       370        380        390        400        410        420 
DCLIKITDFG HSKILGETSL MRTLCGTPTY LAPEVLVSVG TAGYNRAVDC WSLGVILFIC 

       430        440        450        460        470        480 
LSGYPPFSEH RTQVSLKDQI TSGKYNFIPE VWAEVSEKAL DLVKKLLVVD PKARFTTEEA 

       490        500        510        520        530        540 
LRHPWLQDED MKRKFQDLLS EENESTALPQ VLAQPSTSRK RPREGEAEGA ETTKRPAVCA 


AVL 

« Hide

Isoform 2 (ins2).

Checksum: 46766F331DD13DA8
Show »

FASTA23426,084
Isoform 3 (del2-12).

Checksum: D3BF7E0BC0DB0EC1
Show »

FASTA16217,370
Isoform 4 (del2-3).

Checksum: 96F7C353E4F3C85B
Show »

FASTA45250,203
Isoform 5 (del4).

Checksum: 9D1ED8844633607E
Show »

FASTA20322,594
Isoform 6 (sub3).

Checksum: 795CC81539178CF0
Show »

FASTA16518,706
Isoform 7 (del9-12).

Checksum: CAE0E58DF0308393
Show »

FASTA33938,125
Isoform 8 (del7).

Checksum: 630D0AF3AE5114E6
Show »

FASTA28932,142
Isoform 9 (insx).

Checksum: 55BDE42C9A0F98A7
Show »

FASTA58665,419
Isoform 10 (iso2).

Checksum: 54BBB0152B5668D5
Show »

FASTA14015,420
Isoform 11 (iso1).

Checksum: 57F0155780C96BA2
Show »

FASTA22524,396
Isoform 12 (del9).

Checksum: 8B99B81830B8092F
Show »

FASTA51457,526

References

« Hide 'large scale' references
[1]"Linkage of ATM to cell cycle regulation by the Chk2 protein kinase."
Matsuoka S., Huang M., Elledge S.J.
Science 282:1893-1897(1998) [PubMed: 9836640] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), MUTAGENESIS OF ASP-347.
[2]"A human homologue of the checkpoint kinase Cds1 directly inhibits Cdc25 phosphatase."
Blasina A., van de Weyer I., Laus M.C., Luyten W.H.M.L., Parker A.E., McGowan C.H.
Curr. Biol. 9:1-10(1999) [PubMed: 9889122] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), FUNCTION.
[3]"A human Cds1-related kinase that functions downstream of ATM protein in the cellular response to DNA damage."
Brown A.L., Lee C.-H., Schwarz J.K., Mitiku N., Piwnica-Worms H., Chung J.H.
Proc. Natl. Acad. Sci. U.S.A. 96:3745-3750(1999) [PubMed: 10097108] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2), FUNCTION.
[4]"Alternative splicing and mutation status of CHEK2 in stage III breast cancer."
Staalesen V., Falck J., Geisler S., Bartkova J., Boerresen-Dale A.-L., Lukas J., Lillehaug J.R., Bartek J., Lonning P.E.
Oncogene 23:8535-8544(2004) [PubMed: 15361853] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 2; 3; 4; 5; 6; 7; 8; 9; 10; 11 AND 12), FUNCTION, SUBCELLULAR LOCATION.
Tissue: Mammary gland.
[5]"A genome annotation-driven approach to cloning the human ORFeome."
Collins J.E., Wright C.L., Edwards C.A., Davis M.P., Grinham J.A., Cole C.G., Goward M.E., Aguado B., Mallya M., Mokrab Y., Huckle E.J., Beare D.M., Dunham I.
Genome Biol. 5:RESEARCH84.1-RESEARCH84.11(2004) [PubMed: 15461802] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 9).
[6]"Chk2/HuCds1 cell cycle checkpoint protein kinase from human colon carcinoma HT29 cells: regulation by autophosphorylation and DNA-dependent protein kinase and inhibition by cell cycle regulatory drugs."
Shao R.-G., Zhang H., Yu Q., Pommier Y.
Submitted (JUL-1999) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1).
Tissue: Colon carcinoma.
[7]"An alternative spliced Chk2."
Ogawa A., Okabe-Nakamura A.
Submitted (MAR-2000) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 12).
Tissue: T-cell.
[8]NIEHS SNPs program
Submitted (OCT-2004) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA], VARIANTS LEU-85; THR-157; MET-436; LYS-446; ILE-447; SER-448; LYS-501 AND VAL-512.
[9]"The DNA sequence of human chromosome 22."
Dunham I., Hunt A.R., Collins J.E., Bruskiewich R., Beare D.M., Clamp M., Smink L.J., Ainscough R., Almeida J.P., Babbage A.K., Bagguley C., Bailey J., Barlow K.F., Bates K.N., Beasley O.P., Bird C.P., Blakey S.E., Bridgeman A.M. expand/collapse author list , Buck D., Burgess J., Burrill W.D., Burton J., Carder C., Carter N.P., Chen Y., Clark G., Clegg S.M., Cobley V.E., Cole C.G., Collier R.E., Connor R., Conroy D., Corby N.R., Coville G.J., Cox A.V., Davis J., Dawson E., Dhami P.D., Dockree C., Dodsworth S.J., Durbin R.M., Ellington A.G., Evans K.L., Fey J.M., Fleming K., French L., Garner A.A., Gilbert J.G.R., Goward M.E., Grafham D.V., Griffiths M.N.D., Hall C., Hall R.E., Hall-Tamlyn G., Heathcott R.W., Ho S., Holmes S., Hunt S.E., Jones M.C., Kershaw J., Kimberley A.M., King A., Laird G.K., Langford C.F., Leversha M.A., Lloyd C., Lloyd D.M., Martyn I.D., Mashreghi-Mohammadi M., Matthews L.H., Mccann O.T., Mcclay J., Mclaren S., McMurray A.A., Milne S.A., Mortimore B.J., Odell C.N., Pavitt R., Pearce A.V., Pearson D., Phillimore B.J.C.T., Phillips S.H., Plumb R.W., Ramsay H., Ramsey Y., Rogers L., Ross M.T., Scott C.E., Sehra H.K., Skuce C.D., Smalley S., Smith M.L., Soderlund C., Spragon L., Steward C.A., Sulston J.E., Swann R.M., Vaudin M., Wall M., Wallis J.M., Whiteley M.N., Willey D.L., Williams L., Williams S.A., Williamson H., Wilmer T.E., Wilming L., Wright C.L., Hubbard T., Bentley D.R., Beck S., Rogers J., Shimizu N., Minoshima S., Kawasaki K., Sasaki T., Asakawa S., Kudoh J., Shintani A., Shibuya K., Yoshizaki Y., Aoki N., Mitsuyama S., Roe B.A., Chen F., Chu L., Crabtree J., Deschamps S., Do A., Do T., Dorman A., Fang F., Fu Y., Hu P., Hua A., Kenton S., Lai H., Lao H.I., Lewis J., Lewis S., Lin S.-P., Loh P., Malaj E., Nguyen T., Pan H., Phan S., Qi S., Qian Y., Ray L., Ren Q., Shaull S., Sloan D., Song L., Wang Q., Wang Y., Wang Z., White J., Willingham D., Wu H., Yao Z., Zhan M., Zhang G., Chissoe S., Murray J., Miller N., Minx P., Fulton R., Johnson D., Bemis G., Bentley D., Bradshaw H., Bourne S., Cordes M., Du Z., Fulton L., Goela D., Graves T., Hawkins J., Hinds K., Kemp K., Latreille P., Layman D., Ozersky P., Rohlfing T., Scheet P., Walker C., Wamsley A., Wohldmann P., Pepin K., Nelson J., Korf I., Bedell J.A., Hillier L.W., Mardis E., Waterston R., Wilson R., Emanuel B.S., Shaikh T., Kurahashi H., Saitta S., Budarf M.L., McDermid H.E., Johnson A., Wong A.C.C., Morrow B.E., Edelmann L., Kim U.J., Shizuya H., Simon M.I., Dumanski J.P., Peyrard M., Kedra D., Seroussi E., Fransson I., Tapia I., Bruder C.E., O'Brien K.P., Wilkinson P., Bodenteich A., Hartman K., Hu X., Khan A.S., Lane L., Tilahun Y., Wright H.
Nature 402:489-495(1999) [PubMed: 10591208] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
[10]"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: 15489334] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1).
Tissue: Muscle.
[11]"The stress kinase MRK contributes to regulation of DNA damage checkpoints through a p38gamma-independent pathway."
Tosti E., Waldbaum L., Warshaw G., Gross E.A., Ruggieri R.
J. Biol. Chem. 279:47652-47660(2004) [PubMed: 15342622] [Abstract]
Cited for: ENZYME REGULATION, PHOSPHORYLATION AT THR-68, MUTAGENESIS OF THR-68 AND ASP-368.
[12]"Structural and functional versatility of the FHA domain in DNA-damage signaling by the tumor suppressor kinase Chk2."
Li J., Williams B.L., Haire L.F., Goldberg M., Wilker E., Durocher D., Yaffe M.B., Jackson S.P., Smerdon S.J.
Mol. Cell 9:1045-1054(2002) [PubMed: 12049740] [Abstract]
Cited for: X-RAY CRYSTALLOGRAPHY (2.7 ANGSTROMS) OF 64-212.
[13]"Heterozygous germ line hCHK2 mutations in Li-Fraumeni syndrome."
Bell D.W., Varley J.M., Szydlo T.E., Kang D.H., Wahrer D.C.R., Shannon K.E., Lubratovich M., Versalis S.J., Isselbacher K.J., Fraumeni J.F. Jr., Birch J.M., Li F.P., Garber J.E., Haber D.A.
Science 286:2528-2531(1999) [PubMed: 10617473] [Abstract]
Cited for: VARIANT THR-157, VARIANT COLON CANCER TRP-145.
[14]"Mutation analysis of the CHK2 gene in families with hereditary breast cancer."
Allinen M., Huusko P., Maentyniemi S., Launonen V., Winqvist R.
Br. J. Cancer 85:209-212(2001) [PubMed: 11461078] [Abstract]
Cited for: VARIANT THR-157.
[15]"Destabilization of CHK2 by a missense mutation associated with Li-Fraumeni Syndrome."
Lee S.B., Kim S.H., Bell D.W., Wahrer D.C.R., Schiripo T.A., Jorczak M.M., Sgroi D.C., Garber J.E., Li F.P., Nichols K.E., Varley J.M., Godwin A.K., Shannon K.M., Harlow E., Haber D.A.
Cancer Res. 61:8062-8067(2001) [PubMed: 11719428] [Abstract]
Cited for: VARIANT LFS2 TRP-145.
[16]"Mutation analysis of the CHK2 gene in breast carcinoma and other cancers."
Ingvarsson S., Sigbjornsdottir B.I., Huiping C., Hafsteinsdottir S.H., Ragnarsson G., Barkardottir R.B., Arason A., Egilsson V., Bergthorsson J.T.
Breast Cancer Res. 4:R4-R4(2002) [PubMed: 12052256] [Abstract]
Cited for: VARIANT MULTIPLE CANCERS LYS-59.
[17]"CHEK2 variants in susceptibility to breast cancer and evidence of retention of the wild type allele in tumours."
Sodha N., Bullock S., Taylor R., Mitchell G., Guertl-Lackner B., Williams R.D., Bevan S., Bishop K., McGuire S., Houlston R.S., Eeles R.A.
Br. J. Cancer 87:1445-1448(2002) [PubMed: 12454775] [Abstract]
Cited for: VARIANTS GLY-117; GLN-137 AND HIS-180.
[18]"Mutations of the CHK2 gene are found in some osteosarcomas, but are rare in breast, lung, and ovarian tumors."
Miller C.W., Ikezoe T., Krug U., Hofmann W.K., Tavor S., Vegesna V., Tsukasaki K., Takeuchi S., Koeffler H.P.
Genes Chromosomes Cancer 33:17-21(2002) [PubMed: 11746983] [Abstract]
Cited for: VARIANTS OSTEOSARCOMA SER-17 AND LEU-85.
[19]"Mutations in CHEK2 associated with prostate cancer risk."
Dong X., Wang L., Taniguchi K., Wang X., Cunningham J.M., McDonnell S.K., Qian C., Marks A.F., Slager S.L., Peterson B.J., Smith D.I., Cheville J.C., Blute M.L., Jacobsen S.J., Schaid D.J., Tindall D.J., Thibodeau S.N., Liu W.
Am. J. Hum. Genet. 72:270-280(2003) [PubMed: 12533788] [Abstract]
Cited for: VARIANTS PROSTATE CANCER LYS-64; PRO-145; ARG-167; CYS-180; HIS-180; CYS-181; HIS-181; LYS-239; PHE-251; HIS-318; PRO-323; CYS-327 AND LYS-476, VARIANT THR-157.
[20]"Variants in CHEK2 other than 1100delC do not make a major contribution to breast cancer susceptibility."
Schutte M., Seal S., Barfoot R., Meijers-Heijboer H., Wasielewski M., Evans D.G., Eccles D., Meijers C., Lohman F., Klijn J., van den Ouweland A., Brady A., Cole T., Collins A., Cox H., Donaldson A., Eeles R., Evans G. expand/collapse author list , Gregory H., Gray J., Houlston R., Lalloo F., Lucassen A., Mackay J., Mitchell G., Morrison P., Murday V., Narod S., Patterson J., Peretz T., Phelan C.M., Rogers M., Schofield A., Tonin P., Weber B., Weber W., Futreal P.A., Nathanson K.L., Weber B.L., Easton D.F., Stratton M.R., Rahman N.
Am. J. Hum. Genet. 72:1023-1028(2003) [PubMed: 12610780] [Abstract]
Cited for: VARIANTS GLY-117; TRP-145 AND THR-157.
[21]"CHEK2 variants associate with hereditary prostate cancer."
Seppaelae E.H., Ikonen T., Mononen N., Autio V., Roekman A., Matikainen M.P., Tammela T.L.J., Schleutker J.
Br. J. Cancer 89:1966-1970(2003) [PubMed: 14612911] [Abstract]
Cited for: VARIANT THR-157.
[22]"CHEK2 is a multiorgan cancer susceptibility gene."
Cybulski C., Gorski B., Huzarski T., Masojc B., Mierzejewski M., Debniak T., Teodorczyk U., Byrski T., Gronwald J., Matyjasik J., Zlowocka E., Lenner M., Grabowska E., Nej K., Castaneda J., Medrek K., Szymanska A., Szymanska J. expand/collapse author list , Kurzawski G., Suchy J., Oszurek O., Witek A., Narod S.A., Lubinski J.
Am. J. Hum. Genet. 75:1131-1135(2004) [PubMed: 15492928] [Abstract]
Cited for: VARIANT THR-157.
[23]"Frequency of CHEK2 mutations in a population based, case-control study of breast cancer in young women."
Friedrichsen D.M., Malone K.E., Doody D.R., Daling J.R., Ostrander E.A.
Breast Cancer Res. 6:R629-R635(2004) [PubMed: 15535844] [Abstract]
Cited for: VARIANTS TRP-145 AND THR-157.
[24]"A novel founder CHEK2 mutation is associated with increased prostate cancer risk."
Cybulski C., Huzarski T., Gorski B., Masojc B., Mierzejewski M., Debniak T., Gliniewicz B., Matyjasik J., Zlowocka E., Kurzawski G., Sikorski A., Posmyk M., Szwiec M., Czajka R., Narod S.A., Lubinski J.
Cancer Res. 64:2677-2679(2004) [PubMed: 15087378] [Abstract]
Cited for: VARIANT THR-157.
[25]"Limited relevance of the CHEK2 gene in hereditary breast cancer."
Dufault M.R., Betz B., Wappenschmidt B., Hofmann W., Bandick K., Golla A., Pietschmann A., Nestle-Kraemling C., Rhiem K., Huettner C., von Lindern C., Dall P., Kiechle M., Untch M., Jonat W., Meindl A., Scherneck S., Niederacher D., Schmutzler R.K., Arnold N.
Int. J. Cancer 110:320-325(2004) [PubMed: 15095295] [Abstract]
Cited for: VARIANT THR-157.
[26]"CHEK2 variant I157T may be associated with increased breast cancer risk."
Kilpivaara O., Vahteristo P., Falck J., Syrjaekoski K., Eerola H., Easton D., Bartkova J., Lukas J., Heikkilae P., Aittomaeki K., Holli K., Blomqvist C., Kallioniemi O.-P., Bartek J., Nevanlinna H.
Int. J. Cancer 111:543-547(2004) [PubMed: 15239132] [Abstract]
Cited for: VARIANT THR-157.
[27]"Functional and genomic approaches reveal an ancient CHEK2 allele associated with breast cancer in the Ashkenazi Jewish population."
Shaag A., Walsh T., Renbaum P., Kirchhoff T., Nafa K., Shiovitz S., Mandell J.B., Welcsh P., Lee M.K., Ellis N., Offit K., Levy-Lahad E., King M.-C.
Hum. Mol. Genet. 14:555-563(2005) [PubMed: 15649950] [Abstract]
Cited for: VARIANTS LEU-85 AND PHE-428.
[28]"Association of two mutations in the CHEK2 gene with breast cancer."
Bogdanova N., Enbetaen-Dubrowinskaja N., Feshchenko S., Lazjuk G.I., Rogov Y.I., Dammann O., Bremer M., Karstens J.H., Sohn C., Doerk T.
Int. J. Cancer 116:263-266(2005) [PubMed: 15810020] [Abstract]
Cited for: VARIANT THR-157.
[29]"Homozygosity for a CHEK2*1100delC mutation identified in familial colorectal cancer does not lead to a severe clinical phenotype."
van Puijenbroek M., van Asperen C.J., van Mil A., Devilee P., van Wezel T., Morreau H.
J. Pathol. 206:198-204(2005) [PubMed: 15818573] [Abstract]
Cited for: VARIANTS GLY-117; GLN-137; TRP-145; THR-157 AND HIS-180.
+Additional computationally mapped references.

Cross-references

Sequence databases

AF086904 mRNA. Translation: AAC83693.1.
AJ131197 mRNA. Translation: CAA10319.1.
AF096279 mRNA. Translation: AAD11784.1.
AY551295 mRNA. Translation: AAS58456.1.
AY551296 mRNA. Translation: AAS58457.1.
AY551297 mRNA. Translation: AAS58458.1.
AY551298 mRNA. Translation: AAS58459.1.
AY551299 mRNA. Translation: AAS58460.1.
AY551300 mRNA. Translation: AAS58461.1.
AY551301 mRNA. Translation: AAS58462.1.
AY551302 mRNA. Translation: AAS58463.1.
AY551303 mRNA. Translation: AAS58464.1.
AY551304 mRNA. Translation: AAS58465.1.
AY551305 mRNA. Translation: AAS58466.1.
CR456418 mRNA. Translation: CAG30304.1.
AF174135 mRNA. Translation: AAD48504.1.
AB040105 mRNA. Translation: BAB17231.1.
AY800241 Genomic DNA. Translation: AAV41895.1.
AL121825, AL117330 Genomic DNA. Translation: CAH73823.1.
AL117330, AL121825 Genomic DNA. Translation: CAH73875.1.
BC004207 mRNA. Translation: AAH04207.1.
IPIIPI00014072.
IPI00030746.
IPI00423146.
IPI00423149.
IPI00423156.
IPI00423157.
IPI00607619.
IPI00607680.
IPI00607709.
IPI00607739.
IPI00607753.
IPI00607851.
RefSeqNP_001005735.1.
NP_009125.1.
NP_665861.1.
UniGeneHs.291363
Hs.505297

3D structure databases

EntryMethodResolution (Å)ChainPositionsPDBsum
1GXCX-ray2.70A/D/G/J64-212[»]
2CN5X-ray2.25A210-531[»]
2CN8X-ray2.70A210-531[»]
2W0JX-ray2.05A210-531[»]
ModBaseSearch...

Protein-protein interaction databases

DIPDIP:24270N.
IntActO96017. 15 interactions.

PTM databases

PhosphoSiteO96017.

Proteomic databases

PRIDEO96017.

Genome annotation databases

EnsemblENSG00000183765. Homo sapiens. [Contig view]
GeneID11200.
KEGGhsa:11200.

Organism-specific databases

GeneCardsGC0YP012028.
GC22M027408.
GC22M027413.
GC22M027414.
GC22M027415.
GC22P015366.
H-InvDBHIX0016341.
HIX0038241.
HGNCHGNC:16627. CHEK2.
HPACAB002030.
HPA001878.
MIM176807. phenotype.
259500. phenotype.
604373. gene+phenotype.
609265. phenotype.
Orphanet145. Breast cancer, familial.
524. Li-Fraumeni syndrome.
668. Osteosarcoma.
1331. Prostate cancer, familial.
PharmGKBPA404.
GenAtlasSearch...

Phylogenomic databases

HOVERGENO96017.
OMAO96017. KARFTTE.

Enzyme and pathway databases

BRENDA2.7.11.1. 247.
Pathway_Interaction_DBfoxm1pathway. FOXM1 transcription factor network.
ReactomeREACT_1538. Cell Cycle Checkpoints.

Gene expression databases

ArrayExpressO96017.
BgeeO96017.
GermOnlineENSG00000183765. Homo sapiens.

Family and domain databases

InterProIPR000253. FHA.
IPR000719. Prot_kinase_core.
IPR017441. Protein_kinase_ATP_BS.
IPR017442. Se/Thr_pkinase-rel.
IPR008271. Ser_thr_pkin_AS.
IPR002290. Ser_thr_pkinase.
[Graphical view]
Gene3DG3DSA:2.60.200.20. FHA. 1 hit.
PfamPF00498. FHA. 1 hit.
PF00069. Pkinase. 1 hit.
[Graphical view]
ProDomPD000001. Prot_kinase. 1 hit.
[Graphical view] [Entries sharing at least one domain]
SMARTSM00240. FHA. 1 hit.
SM00220. S_TKc. 1 hit.
[Graphical view]
PROSITEPS50006. FHA_DOMAIN. 1 hit.
PS00107. PROTEIN_KINASE_ATP. False negative.
PS50011. PROTEIN_KINASE_DOM. 1 hit.
PS00108. PROTEIN_KINASE_ST. 1 hit.
[Graphical view]
ProtoNetSearch...

Other Resources

NextBio42629.
SOURCESearch...

Entry information

Entry nameCHK2_HUMAN
AccessionPrimary (citable) accession number: O96017
Secondary accession number(s): Q6QA03 expand/collapse secondary AC list , Q6QA04, Q6QA05, Q6QA06, Q6QA07, Q6QA08, Q6QA10, Q6QA11, Q6QA12, Q6QA13, Q9HCQ8, Q9UGF0, Q9UGF1
Entry history
Integrated into UniProtKB/Swiss-Prot: May 30, 2000
Last sequence update: May 1, 1999
Last modified: June 16, 2009
This is version 114 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation projectHPI (Human Proteome Initiative)

Relevant documents

Human chromosome 22

Human chromosome 22: entries, gene names and cross-references to MIM

Human entries with polymorphisms or disease mutations

List of human entries with polymorphisms or disease mutations

Human polymorphisms and disease mutations

Index of human polymorphisms and disease mutations

MIM cross-references

Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot

PDB cross-references

Index of Protein Data Bank (PDB) cross-references

Human and mouse protein kinases

Human and mouse protein kinases: classification and index

SIMILARITY comments

Index of protein domains and families

Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Binary interactions · Alternative products · Sequence annotation (Features) · Sequences · References · Web resources · Cross-references · Entry information · Relevant documents