FUNCTION: Reversibly catalyzes the transfer of phosphate between ATP and various phosphogens (e.g. creatine phosphate). Creatine kinase isoenzymes play a central role in energy transduction in tissues with large, fluctuating energy demands, such as skeletal muscle, heart, brain and spermatozoa (By similarity).
CATALYTIC ACTIVITY: ATP + creatine = ADP + phosphocreatine.
SUBUNIT: Exists as an octamer composed of four CKMT2 homodimers (By similarity).
SUBCELLULAR LOCATION: Mitochondrion inner membrane; Peripheral membrane protein; Intermembrane side (By similarity).
MISCELLANEOUS: Mitochondrial creatine kinase binds cardiolipin.
SIMILARITY: Belongs to the ATP:guanido phosphotransferase family.

Copyright

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Cross-references

Sequence databases

EMBL

CR860203; CAH92345.1; -; mRNA.

[EMBL / GenBank / DDBJ] [CoDingSequence]

3D structure databases

SMR

Q5R7B5; 47-413.

ModBase

Q5R7B5.

Family and domain databases

InterPro

IPR000749; ATP-gua_Ptrans.
IPR014746; Gln_synth/guanido_kin_cat.
Graphical view of domain structure.

Gene3D

G3DSA:1.10.135.10; ATP-gua_Ptrans; 1.
G3DSA:3.30.590.10; ATP-gua_Ptrans; 1.

PANTHER

PTHR11547; ATP-gua_Ptrans; 1.

Pfam

PF00217; ATP-gua_Ptrans; 1.
PF02807; ATP-gua_PtransN; 1.
Pfam graphical view of domain structure.

PROSITE

PS00112; GUANIDO_KINASE; 1.

BLOCKS

Q5R7B5.

Phylogenomic databases

HOVERGEN

Q5R7B5; -.

Other

ProtoNet

Q5R7B5.

UniRef

View cluster of proteins with at least 50% / 90% / 100% identity.

Keywords

ATP-binding; Kinase; Membrane; Mitochondrion; Mitochondrion inner membrane; Nucleotide-binding; Transferase; Transit peptide.

Features

Feature table viewer

Feature aligner

`Key`	`From To`	`Length`	`Description`	`FTId`
`TRANSIT`	`1 39`	`39`	`Mitochondrion.`
`CHAIN`	`40 419`	`380`	`Creatine kinase, sarcomeric mitochondrial.`	`PRO_0000016596`
`NP_BIND`	`162 166`	`5`	`ATP (By similarity).`
`NP_BIND`	`354 359`	`6`	`ATP (By similarity).`
`REGION`	`40 64`	`25`	`Cardiolipin-binding (By similarity).`
`ACT_SITE`	`317 317`		`By similarity.`
`BINDING`	`225 225`		`ATP (By similarity).`
`BINDING`	`326 326`		`ATP (By similarity).`
`BINDING`	`369 369`		`ATP (By similarity).`

Sequence information

Length: 419 AA [This is the length of the unprocessed precursor]

Molecular weight: 47476 Da [This is the MW of the unprocessed precursor]

CRC64: E10C42A26BD926FE [This is a checksum on the sequence]

        10         20         30         40         50         60 
MASIFSKLLT GRNASLLFAT MGTSVLTTGY LLNQQKVCAE VREQPRLFPP SADYPDLRKH 

        70         80         90        100        110        120 
NNCMAECLTP AIYAKLRNKV TPNGYTLDQC IQTGVDNPGH PFIKTVGMVA GDEESYEVFA 

       130        140        150        160        170        180 
DLFDPVIKLR HNGYDPRVMK HTTDLDASKI TQGQFDEHYV LSSRVRTGRS IRGLSLPPAC 

       190        200        210        220        230        240 
TRAERREVEN VAITALEGLK GDLAGRYYKL SEMTEQDQQR LIDDHFLFDK PVSPLLTCAG 

       250        260        270        280        290        300 
MARDWPDARG IWHNYDKTFL IWINEEDHTR VISMEKGGNM KRVFERFCRG LKEVERLIQE 

       310        320        330        340        350        360 
RGWEFMWNER LGYILTCPSN LGTGLRAGVH VRIPKLSKDP RFSKILENLR LQKRGTGGVD 

       370        380        390        400        410 
TAAVADVYDI SNIDRIGRSE VELVQIVIDG VNYLVDCEKK LERGQDIKVP PPLPQFGKK

Q5R7B5 in FASTA format

View entry in original UniProtKB/Swiss-Prot format
View entry in raw text format (no links)
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	BLAST submission on ExPASy/SIB or at NCBI (USA)		Sequence analysis tools: ProtParam, ProtScale, Compute pI/Mw, PeptideMass, PeptideCutter, Dotlet (Java)
	ScanProsite, MotifScan		Submit a homology modeling request to SWISS-MODEL
	NPSA Sequence analysis tools