ID   B1APG1_HUMAN            Unreviewed;       197 AA.
AC   B1APG1;
DT   08-APR-2008, integrated into UniProtKB/TrEMBL.
DT   08-APR-2008, sequence version 1.
DT   02-SEP-2026, entry version 121.
DE   RecName: Full=Serine/threonine-protein {ECO:0000256|PROSITE-ProRule:PRU10027};
DE            EC=2.7.11.1 {ECO:0000256|PROSITE-ProRule:PRU10027};
DE   Flags: Fragment;
GN   Name=PRKACB {ECO:0000313|Ensembl:ENSP00000399326.1};
OS   Homo sapiens (Human).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae;
OC   Homo.
OX   NCBI_TaxID=9606 {ECO:0000313|Ensembl:ENSP00000399326.1, ECO:0000313|Proteomes:UP000005640};
RN   [1] {ECO:0000313|Ensembl:ENSP00000399326.1, ECO:0000313|Proteomes:UP000005640}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=11237011; DOI=10.1038/35057062;
RG   International Human Genome Sequencing Consortium;
RA   Lander E.S., Linton L.M., Birren B., Nusbaum C., Zody M.C., Baldwin J.,
RA   Devon K., Dewar K., Doyle M., FitzHugh W., Funke R., Gage D., Harris K.,
RA   Heaford A., Howland J., Kann L., Lehoczky J., LeVine R., McEwan P.,
RA   McKernan K., Meldrim J., Mesirov J.P., Miranda C., Morris W., Naylor J.,
RA   Raymond C., Rosetti M., Santos R., Sheridan A., Sougnez C.,
RA   Stange-Thomann N., Stojanovic N., Subramanian A., Wyman D., Rogers J.,
RA   Sulston J., Ainscough R., Beck S., Bentley D., Burton J., Clee C.,
RA   Carter N., Coulson A., Deadman R., Deloukas P., Dunham A., Dunham I.,
RA   Durbin R., French L., Grafham D., Gregory S., Hubbard T., Humphray S.,
RA   Hunt A., Jones M., Lloyd C., McMurray A., Matthews L., Mercer S., Milne S.,
RA   Mullikin J.C., Mungall A., Plumb R., Ross M., Shownkeen R., Sims S.,
RA   Waterston R.H., Wilson R.K., Hillier L.W., McPherson J.D., Marra M.A.,
RA   Mardis E.R., Fulton L.A., Chinwalla A.T., Pepin K.H., Gish W.R.,
RA   Chissoe S.L., Wendl M.C., Delehaunty K.D., Miner T.L., Delehaunty A.,
RA   Kramer J.B., Cook L.L., Fulton R.S., Johnson D.L., Minx P.J., Clifton S.W.,
RA   Hawkins T., Branscomb E., Predki P., Richardson P., Wenning S., Slezak T.,
RA   Doggett N., Cheng J.F., Olsen A., Lucas S., Elkin C., Uberbacher E.,
RA   Frazier M., Gibbs R.A., Muzny D.M., Scherer S.E., Bouck J.B.,
RA   Sodergren E.J., Worley K.C., Rives C.M., Gorrell J.H., Metzker M.L.,
RA   Naylor S.L., Kucherlapati R.S., Nelson D.L., Weinstock G.M., Sakaki Y.,
RA   Fujiyama A., Hattori M., Yada T., Toyoda A., Itoh T., Kawagoe C.,
RA   Watanabe H., Totoki Y., Taylor T., Weissenbach J., Heilig R., Saurin W.,
RA   Artiguenave F., Brottier P., Bruls T., Pelletier E., Robert C., Wincker P.,
RA   Smith D.R., Doucette-Stamm L., Rubenfield M., Weinstock K., Lee H.M.,
RA   Dubois J., Rosenthal A., Platzer M., Nyakatura G., Taudien S., Rump A.,
RA   Yang H., Yu J., Wang J., Huang G., Gu J., Hood L., Rowen L., Madan A.,
RA   Qin S., Davis R.W., Federspiel N.A., Abola A.P., Proctor M.J., Myers R.M.,
RA   Schmutz J., Dickson M., Grimwood J., Cox D.R., Olson M.V., Kaul R.,
RA   Raymond C., Shimizu N., Kawasaki K., Minoshima S., Evans G.A.,
RA   Athanasiou M., Schultz R., Roe B.A., Chen F., Pan H., Ramser J.,
RA   Lehrach H., Reinhardt R., McCombie W.R., de la Bastide M., Dedhia N.,
RA   Blocker H., Hornischer K., Nordsiek G., Agarwala R., Aravind L.,
RA   Bailey J.A., Bateman A., Batzoglou S., Birney E., Bork P., Brown D.G.,
RA   Burge C.B., Cerutti L., Chen H.C., Church D., Clamp M., Copley R.R.,
RA   Doerks T., Eddy S.R., Eichler E.E., Furey T.S., Galagan J., Gilbert J.G.,
RA   Harmon C., Hayashizaki Y., Haussler D., Hermjakob H., Hokamp K., Jang W.,
RA   Johnson L.S., Jones T.A., Kasif S., Kaspryzk A., Kennedy S., Kent W.J.,
RA   Kitts P., Koonin E.V., Korf I., Kulp D., Lancet D., Lowe T.M.,
RA   McLysaght A., Mikkelsen T., Moran J.V., Mulder N., Pollara V.J.,
RA   Ponting C.P., Schuler G., Schultz J., Slater G., Smit A.F., Stupka E.,
RA   Szustakowski J., Thierry-Mieg D., Thierry-Mieg J., Wagner L., Wallis J.,
RA   Wheeler R., Williams A., Wolf Y.I., Wolfe K.H., Yang S.P., Yeh R.F.,
RA   Collins F., Guyer M.S., Peterson J., Felsenfeld A., Wetterstrand K.A.,
RA   Patrinos A., Morgan M.J., de Jong P., Catanese J.J., Osoegawa K.,
RA   Shizuya H., Choi S., Chen Y.J.;
RT   "Initial sequencing and analysis of the human genome.";
RL   Nature 409:860-921(2001).
RN   [2] {ECO:0000313|Ensembl:ENSP00000399326.1, ECO:0000313|Proteomes:UP000005640}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=15496913; DOI=10.1038/nature03001;
RG   International Human Genome Sequencing Consortium;
RT   "Finishing the euchromatic sequence of the human genome.";
RL   Nature 431:931-945(2004).
RN   [3] {ECO:0000313|Ensembl:ENSP00000399326.1, ECO:0000313|Proteomes:UP000005640}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=16710414; DOI=10.1038/nature04727;
RA   Gregory S.G., Barlow K.F., McLay K.E., Kaul R., Swarbreck D., Dunham A.,
RA   Scott C.E., Howe K.L., Woodfine K., Spencer C.C., Jones M.C., Gillson C.,
RA   Searle S., Zhou Y., Kokocinski F., McDonald L., Evans R., Phillips K.,
RA   Atkinson A., Cooper R., Jones C., Hall R.E., Andrews T.D., Lloyd C.,
RA   Ainscough R., Almeida J.P., Ambrose K.D., Anderson F., Andrew R.W.,
RA   Ashwell R.I., Aubin K., Babbage A.K., Bagguley C.L., Bailey J., Beasley H.,
RA   Bethel G., Bird C.P., Bray-Allen S., Brown J.Y., Brown A.J., Buckley D.,
RA   Burton J., Bye J., Carder C., Chapman J.C., Clark S.Y., Clarke G., Clee C.,
RA   Cobley V., Collier R.E., Corby N., Coville G.J., Davies J., Deadman R.,
RA   Dunn M., Earthrowl M., Ellington A.G., Errington H., Frankish A.,
RA   Frankland J., French L., Garner P., Garnett J., Gay L., Ghori M.R.,
RA   Gibson R., Gilby L.M., Gillett W., Glithero R.J., Grafham D.V.,
RA   Griffiths C., Griffiths-Jones S., Grocock R., Hammond S., Harrison E.S.,
RA   Hart E., Haugen E., Heath P.D., Holmes S., Holt K., Howden P.J., Hunt A.R.,
RA   Hunt S.E., Hunter G., Isherwood J., James R., Johnson C., Johnson D.,
RA   Joy A., Kay M., Kershaw J.K., Kibukawa M., Kimberley A.M., King A.,
RA   Knights A.J., Lad H., Laird G., Lawlor S., Leongamornlert D.A., Lloyd D.M.,
RA   Loveland J., Lovell J., Lush M.J., Lyne R., Martin S.,
RA   Mashreghi-Mohammadi M., Matthews L., Matthews N.S., McLaren S., Milne S.,
RA   Mistry S., Moore M.J., Nickerson T., O'Dell C.N., Oliver K., Palmeiri A.,
RA   Palmer S.A., Parker A., Patel D., Pearce A.V., Peck A.I., Pelan S.,
RA   Phelps K., Phillimore B.J., Plumb R., Rajan J., Raymond C., Rouse G.,
RA   Saenphimmachak C., Sehra H.K., Sheridan E., Shownkeen R., Sims S.,
RA   Skuce C.D., Smith M., Steward C., Subramanian S., Sycamore N., Tracey A.,
RA   Tromans A., Van Helmond Z., Wall M., Wallis J.M., White S., Whitehead S.L.,
RA   Wilkinson J.E., Willey D.L., Williams H., Wilming L., Wray P.W., Wu Z.,
RA   Coulson A., Vaudin M., Sulston J.E., Durbin R., Hubbard T., Wooster R.,
RA   Dunham I., Carter N.P., McVean G., Ross M.T., Harrow J., Olson M.V.,
RA   Beck S., Rogers J., Bentley D.R., Banerjee R., Bryant S.P., Burford D.C.,
RA   Burrill W.D., Clegg S.M., Dhami P., Dovey O., Faulkner L.M., Gribble S.M.,
RA   Langford C.F., Pandian R.D., Porter K.M., Prigmore E.;
RT   "The DNA sequence and biological annotation of human chromosome 1.";
RL   Nature 441:315-321(2006).
RN   [4] {ECO:0007829|PubMed:21269460}
RP   IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RX   PubMed=21269460; DOI=10.1186/1752-0509-5-17;
RA   Burkard T.R., Planyavsky M., Kaupe I., Breitwieser F.P., Burckstummer T.,
RA   Bennett K.L., Superti-Furga G., Colinge J.;
RT   "Initial characterization of the human central proteome.";
RL   BMC Syst. Biol. 5:17-17(2011).
RN   [5] {ECO:0000313|Ensembl:ENSP00000399326.1}
RP   IDENTIFICATION.
RG   Ensembl;
RL   Submitted (JAN-2026) to UniProtKB.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=L-seryl-[protein] + ATP = O-phospho-L-seryl-[protein] + ADP +
CC         H(+); Xref=Rhea:RHEA:17989, Rhea:RHEA-COMP:9863, Rhea:RHEA-
CC         COMP:11604, ChEBI:CHEBI:15378, ChEBI:CHEBI:29999, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:83421, ChEBI:CHEBI:456216; EC=2.7.11.1;
CC         Evidence={ECO:0000256|PROSITE-ProRule:PRU10027};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=L-threonyl-[protein] + ATP = O-phospho-L-threonyl-[protein] +
CC         ADP + H(+); Xref=Rhea:RHEA:46608, Rhea:RHEA-COMP:11060, Rhea:RHEA-
CC         COMP:11605, ChEBI:CHEBI:15378, ChEBI:CHEBI:30013, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:61977, ChEBI:CHEBI:456216; EC=2.7.11.1;
CC         Evidence={ECO:0000256|PROSITE-ProRule:PRU10027};
CC   -!- SIMILARITY: Belongs to the protein kinase superfamily. Ser/Thr protein
CC       kinase family. {ECO:0000256|PROSITE-ProRule:PRU00159}.
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DR   EMBL; AL359504; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   EMBL; AL450063; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   AlphaFoldDB; B1APG1; -.
DR   SMR; B1APG1; -.
DR   MassIVE; B1APG1; -.
DR   ProteomicsDB; 3293; -.
DR   Antibodypedia; 4160; 409 antibodies from 38 providers.
DR   Ensembl; ENST00000417530.5; ENSP00000399326.1; ENSG00000142875.22.
DR   UCSC; uc001djo.3; human.
DR   HGNC; HGNC:9381; PRKACB.
DR   VEuPathDB; HostDB:ENSG00000142875; -.
DR   GeneTree; ENSGT00940000161169; -.
DR   OrthoDB; 2156623at2759; -.
DR   ChiTaRS; PRKACB; human.
DR   Proteomes; UP000005640; Chromosome 1.
DR   Bgee; ENSG00000142875; Expressed in endothelial cell and 213 other cell types or tissues.
DR   ExpressionAtlas; B1APG1; baseline and differential.
DR   GO; GO:0005829; C:cytosol; IDA:HPA.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004672; F:protein kinase activity; IEA:InterPro.
DR   FunFam; 3.30.200.20:FF:000005; cAMP-dependent protein kinase catalytic subunit; 1.
DR   FunFam; 1.10.510.10:FF:000850; PRKACB isoform 14; 1.
DR   Gene3D; 3.30.200.20; Phosphorylase Kinase, domain 1; 1.
DR   Gene3D; 1.10.510.10; Transferase(Phosphotransferase) domain 1; 1.
DR   InterPro; IPR011009; Kinase-like_dom_sf.
DR   InterPro; IPR000719; Prot_kinase_dom.
DR   InterPro; IPR017441; Protein_kinase_ATP_BS.
DR   InterPro; IPR008271; Ser/Thr_kinase_AS.
DR   PANTHER; PTHR24353:SF116; CAMP-DEPENDENT PROTEIN KINASE; 1.
DR   PANTHER; PTHR24353; CYCLIC NUCLEOTIDE-DEPENDENT PROTEIN KINASE; 1.
DR   Pfam; PF00069; Pkinase; 1.
DR   SMART; SM00220; S_TKc; 1.
DR   SUPFAM; SSF56112; Protein kinase-like (PK-like); 1.
DR   PROSITE; PS00107; PROTEIN_KINASE_ATP; 1.
DR   PROSITE; PS50011; PROTEIN_KINASE_DOM; 1.
DR   PROSITE; PS00108; PROTEIN_KINASE_ST; 1.
PE   1: Evidence at protein level;
KW   ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|PROSITE-
KW   ProRule:PRU10141};
KW   Kinase {ECO:0000256|ARBA:ARBA00022777, ECO:0000256|PROSITE-
KW   ProRule:PRU00159};
KW   Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|PROSITE-
KW   ProRule:PRU10141};
KW   Proteomics identification {ECO:0007829|PeptideAtlas:B1APG1,
KW   ECO:0007829|ProteomicsDB:B1APG1};
KW   Reference proteome {ECO:0000313|Proteomes:UP000005640};
KW   Serine/threonine-protein kinase {ECO:0000256|ARBA:ARBA00022527,
KW   ECO:0000256|PROSITE-ProRule:PRU00159};
KW   Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PROSITE-
KW   ProRule:PRU00159}.
FT   DOMAIN          31..197
FT                   /note="Protein kinase"
FT                   /evidence="ECO:0000259|PROSITE:PS50011"
FT   ACT_SITE        154
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000256|PROSITE-ProRule:PRU10027"
FT   BINDING         60
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000256|PROSITE-ProRule:PRU10141"
FT   NON_TER         197
FT                   /evidence="ECO:0000313|Ensembl:ENSP00000399326.1"
SQ   SEQUENCE   197 AA;  23118 MW;  B77DCA19BB2AD297 CRC64;
     MSVKEFLAKA KEDFLKKWEN PTQNNAGLED FERKKTLGTG SFGRVMLVKH KATEQYYAMK
     ILDKQKVVKL KQIEHTLNEK RILQAVNFPF LVRLEYAFKD NSNLYMVMEY VPGGEMFSHL
     RRIGRFSEPH ARFYAAQIVL TFEYLHSLDL IYRDLKPENL LIDHQGYIQV TDFGFAKRVK
     GRTWTLCGTP EYLAPEI
//