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Reviewed, UniProtKB/Swiss-Prot P11506 (AT2B2_RAT)

Last modified October 13, 2009. Version 101. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (1) | Third-party data | Customize display text xml rdf/xml gff fasta
Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Alternative products · Sequence annotation (Features) · Sequences · References · Cross-references · Entry information · Relevant documents

Names and origin

Protein namesRecommended name:
    Plasma membrane calcium-transporting ATPase 2
      Short name=PMCA2
    EC=3.6.3.8
Alternative name(s):
    Plasma membrane calcium ATPase isoform 2
    Plasma membrane calcium pump isoform 2
Gene names
Name: Atp2b2
OrganismRattus norvegicus (Rat)
Taxonomic identifier10116 [NCBI]
Taxonomic lineageEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaSciurognathiMuroideaMuridaeMurinaeRattus

Protein attributes

Sequence length1243 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is not processed.
Protein existenceEvidence at transcript level.

General annotation (Comments)

Function

This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the transport of calcium out of the cell.

Catalytic activity

ATP + H2O + Ca2+(Cis) = ADP + phosphate + Ca2+(Trans).

Subcellular location

Cell membrane; Multi-pass membrane protein.

Tissue specificity

Isoforms containing segment B are found in brain, uterus, liver and kidney and in low levels in other tissues. Isoforms containing segment W are found in kidney, uterus, and pancreas. Isoforms containing segment Y are found in pancreas and in low levels in brain and heart. Isoforms containing segment Z are found in brain and heart and isoforms containing segment X are found in low levels in brain. Isoforms containing segment A are found in low levels in heart and small intestine while isoforms containing segment C are found in testis and in low levels in other tissues.

Sequence similarities

Belongs to the cation transport ATPase (P-type) family. Type IIB subfamily.

Ontologies

Keywords
   Biological processCalcium transport
Ion transport
Transport
   Cellular componentCell membrane
Membrane
   Coding sequence diversityAlternative splicing
   DomainTransmembrane
   LigandATP-binding
Calcium
Calmodulin-binding
Magnesium
Metal-binding
Nucleotide-binding
   Molecular functionHydrolase
   PTMPhosphoprotein
Gene Ontology (GO)
   Biological processATP biosynthetic process

Inferred from electronic annotation. Source: InterPro

calcium ion transport

Inferred from electronic annotation. Source: UniProtKB-KW

neuron differentiation

Inferred from sequence or structural similarity. Source: UniProtKB

sensory perception of sound

Inferred from sequence or structural similarity. Source: UniProtKB

   Cellular componentapical plasma membrane

Inferred from direct assay. Source: RGD

cell soma

Inferred from direct assay. Source: RGD

cytoplasm

Inferred from sequence or structural similarity. Source: UniProtKB

dendrite

Inferred from direct assay. Source: RGD

integral to membrane

Inferred from electronic annotation. Source: UniProtKB-SubCell

plasma membrane Ref.1

Inferred from sequence or structural similarity. Source: UniProtKB

   Molecular functionATP binding Ref.1

Inferred from direct assay. Source: RGD

PDZ domain binding

Inferred from physical interaction. Source: RGD

calcium ion binding

Inferred from electronic annotation. Source: UniProtKB-KW

calcium-transporting ATPase activity Ref.1

Inferred from direct assay. Source: RGD

calmodulin binding

Inferred from electronic annotation. Source: UniProtKB-KW

magnesium ion binding

Inferred from electronic annotation. Source: UniProtKB-KW

protein C-terminus binding

Inferred from sequence or structural similarity. Source: UniProtKB

Complete GO annotation...

Alternative products

This entry describes 12 isoforms produced by alternative splicing. [Align] [Select]

Note: There is a combination of two alternatively spliced domains at N-terminal site A (W, X, Y and Z) and at C-terminal site C (A, B and C). So far the splice sites have only been studied independently. Experimental confirmation may be lacking for some isoforms.
Isoform WB (identifier: P11506-1)

Also known as: AIIICI;

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 WA (identifier: P11506-2)

Also known as: AIIICII;

The sequence of this isoform differs from the canonical sequence as follows:
     1141-1243: IRVVKAFRSS...SPIHSLETSL → IEVVNTFKSG...SLPPAAAGQG
Isoform XA (identifier: P11506-3)

Also known as: AIICII;

The sequence of this isoform differs from the canonical sequence as follows:
     303-333: Missing.
     1141-1243: IRVVKAFRSS...SPIHSLETSL → IEVVNTFKSG...SLPPAAAGQG
Isoform YA (identifier: P11506-4)

Also known as: AIIICII;

The sequence of this isoform differs from the canonical sequence as follows:
     334-347: Missing.
     1141-1243: IRVVKAFRSS...SPIHSLETSL → IEVVNTFKSG...SLPPAAAGQG
Isoform ZA (identifier: P11506-5)

Also known as: AICII;

The sequence of this isoform differs from the canonical sequence as follows:
     303-347: Missing.
     1141-1243: IRVVKAFRSS...SPIHSLETSL → IEVVNTFKSG...SLPPAAAGQG
Isoform XB (identifier: P11506-6)

Also known as: AIICI;

The sequence of this isoform differs from the canonical sequence as follows:
     303-333: Missing.
Isoform YB (identifier: P11506-7)

Also known as: AIIICI;

The sequence of this isoform differs from the canonical sequence as follows:
     334-347: Missing.
Isoform ZB (identifier: P11506-8)

Also known as: AICI;

The sequence of this isoform differs from the canonical sequence as follows:
     303-347: Missing.
Isoform WC (identifier: P11506-9)

Also known as: AIIICIII;

The sequence of this isoform differs from the canonical sequence as follows:
     1141-1243: IRVVKAFRSS...SPIHSLETSL → IEVVNTFKSG...AGHPRREGVP
Isoform XC (identifier: P11506-10)

Also known as: AIICIII;

The sequence of this isoform differs from the canonical sequence as follows:
     303-333: Missing.
     1141-1243: IRVVKAFRSS...SPIHSLETSL → IEVVNTFKSG...AGHPRREGVP
Isoform YC (identifier: P11506-11)

Also known as: AIIICIII;

The sequence of this isoform differs from the canonical sequence as follows:
     334-347: Missing.
     1141-1243: IRVVKAFRSS...SPIHSLETSL → IEVVNTFKSG...AGHPRREGVP
Isoform ZC (identifier: P11506-12)

Also known as: AICIII;

The sequence of this isoform differs from the canonical sequence as follows:
     303-347: Missing.
     1141-1243: IRVVKAFRSS...SPIHSLETSL → IEVVNTFKSG...AGHPRREGVP

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 12431243Plasma membrane calcium-transporting ATPase 2
PRO_0000046216

Regions

Topological domain1 – 9494Cytoplasmic Potential
Transmembrane95 – 11521 Potential
Topological domain116 – 15237Extracellular Potential
Transmembrane153 – 17321 Potential
Topological domain174 – 390217Cytoplasmic Potential
Transmembrane391 – 41020 Potential
Topological domain411 – 44333Extracellular Potential
Transmembrane444 – 46118 Potential
Topological domain462 – 875414Cytoplasmic Potential
Transmembrane876 – 89520 Potential
Topological domain896 – 90510Extracellular Potential
Transmembrane906 – 92621 Potential
Topological domain927 – 94620Cytoplasmic Potential
Transmembrane947 – 96923 Potential
Topological domain970 – 98718Extracellular Potential
Transmembrane988 – 100922 Potential
Topological domain1010 – 102819Cytoplasmic Potential
Transmembrane1029 – 105022 Potential
Topological domain1051 – 106010Extracellular Potential
Transmembrane1061 – 108222 Potential
Topological domain1083 – 1243161Cytoplasmic Potential
Region1123 – 114018Calmodulin-binding subdomain A By similarity
Region1141 – 115010Calmodulin-binding subdomain B By similarity
Compositional bias294 – 2974Poly-Glu

Sites

Active site49914-aspartylphosphate intermediate
Metal binding8201Magnesium By similarity
Metal binding8241Magnesium By similarity

Amino acid modifications

Modified residue11391Phosphothreonine; by PKC By similarity
Modified residue12011Phosphoserine; by PKA By similarity
Modified residue12311Phosphoserine By similarity
Modified residue12341Phosphoserine By similarity
Modified residue12381Phosphoserine By similarity
Modified residue12411Phosphothreonine By similarity
Modified residue12421Phosphoserine By similarity

Natural variations

Alternative sequence303 – 34745Missing in isoform ZA, isoform ZB and isoform ZC.
VSP_000388
Alternative sequence303 – 33331Missing in isoform XA, isoform XB and isoform XC.
VSP_000387
Alternative sequence334 – 34714Missing in isoform YA, isoform YB and isoform YC.
VSP_000389
Alternative sequence1141 – 1243103IRVVK…LETSL → IEVVNTFKSGASFQGALRRQ SSVTSQSQDVANLSSPSRVS LSNALSSPTSLPPAAAGQG in isoform WA, isoform XA, isoform YA and isoform ZA.
VSP_000390
Alternative sequence1141 – 1243103IRVVK…LETSL → IEVVNTFKSGASFQGALRRQ SSVTSQSQDVANLSSPSRVS LSNALSSPTSLPPAAAGHPR REGVP in isoform WC, isoform XC, isoform YC and isoform ZC.
VSP_000391

Sequences

Sequence LengthMass (Da)Tools
Isoform WB (AIIICI) [UniParc].

Last modified June 1, 2001. Version 2.
Checksum: 1DC324836BFD5D59

FASTA1,243136,811
        10         20         30         40         50         60 
MGDMTNSDFY SKNQRNESSH GGEFGCSMEE LRSLMELRGT EAVVKIKETY GDTESICRRL 

        70         80         90        100        110        120 
KTSPVEGLPG TAPDLEKRKQ IFGQNFIPPK KPKTFLQLVW EALQDVTLII LEIAAIISLG 

       130        140        150        160        170        180 
LSFYHPPGES NEGCATAQGG AEDEGEAEAG WIEGAAILLS VICVVLVTAF NDWSKEKQFR 

       190        200        210        220        230        240 
GLQSRIEQEQ KFTVVRAGQV VQIPVAEIVV GDIAQIKYGD LLPADGLFIQ GNDLKIDESS 

       250        260        270        280        290        300 
LTGESDQVRK SVDKDPMLLS GTHVMEGSGR MVVTAVGVNS QTGIIFTLLG AGGEEEEKKD 

       310        320        330        340        350        360 
KKGVKKGDGL QLPAADGAAP ANAAGSANAS LVNGKMQDGS ADSSQSKAKQ QDGAAAMEMQ 

       370        380        390        400        410        420 
PLKSAEGGDA DDKKKANMHK KEKSVLQGKL TKLAVQIGKA GLVMSAITVI ILVLYFTVDT 

       430        440        450        460        470        480 
FVVNKKPWLT ECTPVYVQYF VKFFIIGVTV LVVAVPEGLP LAVTISLAYS VKKMMKDNNL 

       490        500        510        520        530        540 
VRHLDACETM GNATAICSDK TGTLTTNRMT VVQAYVGDVH YKEIPDPSSI NAKTLELLVN 

       550        560        570        580        590        600 
AIAINSAYTT KILPPEKEGA LPRQVGNKTE CGLLGFVLDL RQDYEPVRSQ MPEEKLYKVY 

       610        620        630        640        650        660 
TFNSVRKSMS TVIKMPDESF RMYSKGASEI VLKKCCKILS GAGEPRVFRP RDRDEMVKKV 

       670        680        690        700        710        720 
IEPMACDGLR TICVAYRDFP SSPEPDWDNE NDILNELTCI CVVGIEDPVR PEVPEAIRKC 

       730        740        750        760        770        780 
QRAGITVRMV TGDNINTARA IAIKCGIIHP GEDFLCLEGK EFNRRIRNEK GEIEQERIDK 

       790        800        810        820        830        840 
IWPKLRVLAR SSPTDKHTLV KGIIDSTHTE QRQVVAVTGD GTNDGPALKK ADVGFAMGIA 

       850        860        870        880        890        900 
GTDVAKEASD IILTDDNFSS IVKAVMWGRN VYDSISKFLQ FQLTVNVVAV IVAFTGACIT 

       910        920        930        940        950        960 
QDSPLKAVQM LWVNLIMDTF ASLALATEPP TETLLLRKPY GRNKPLISRT MMKNILGHAV 

       970        980        990       1000       1010       1020 
YQLTLIFTLL FVGEKMFQID SGRNAPLHSP PSEHYTIIFN TFVMMQLFNE INARKIHGER 

      1030       1040       1050       1060       1070       1080 
NVFDGIFRNP IFCTIVLGTF AIQIVIVQFG GKPFSCSPLQ LDQWMWCIFI GLGELVWGQV 

      1090       1100       1110       1120       1130       1140 
IATIPTSRLK FLKEAGRLTQ KEEIPEEELN EDVEEIDHAE RELRRGQILW FRGLNRIQTQ 

      1150       1160       1170       1180       1190       1200 
IRVVKAFRSS LYEGLEKPES RTSIHNFMAH PEFRIEDSQP HIPLIDDTDL EEDAALKQNS 

      1210       1220       1230       1240 
SPPSSLNKNN SAIDSGINLT TDTSKSATSS SPGSPIHSLE TSL 

« Hide

Isoform WA (AIIICII).

Checksum: 702E8C5EE0D003B4
Show »

FASTA1,199131,552
Isoform XA (AIICII).

Checksum: 6AB32E12491365BB
Show »

FASTA1,168128,764
Isoform YA (AIIICII).

Checksum: 5D4B80A8A5627C1E
Show »

FASTA1,185130,145
Isoform ZA (AICII).

Checksum: 22BF0F734827E168
Show »

FASTA1,154127,357
Isoform XB (AIICI).

Checksum: 011EA48CC5EA5536
Show »

FASTA1,212134,023
Isoform YB (AIIICI).

Checksum: A84D25AAE960A542
Show »

FASTA1,229135,404
Isoform ZB (AICI).

Checksum: 0362C0738CFA439F
Show »

FASTA1,198132,616
Isoform WC (AIIICIII).

Checksum: 894D6AD40637CF29
Show »

FASTA1,205132,296
Isoform XC (AIICIII).

Checksum: 644AC852899E45B4
Show »

FASTA1,174129,508
Isoform YC (AIIICIII).

Checksum: 8291A1522E47024C
Show »

FASTA1,191130,889
Isoform ZC (AICIII).

Checksum: 53A179C997F3DDB8
Show »

FASTA1,160128,101

References

[1]"Molecular cloning of two isoforms of the plasma membrane Ca2+-transporting ATPase from rat brain. Structural and functional domains exhibit similarity to Na+,K+- and other cation transport ATPases."
Shull G.E., Greeb J.
J. Biol. Chem. 263:8646-8657(1988) [PubMed: 2837461] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM ZB).
Strain: Sprague-Dawley.
[2]"New Ca2+ pump isoforms generated by alternative splicing of rPMCA2 mRNA."
Adamo H.P., Penniston J.T.
Biochem. J. 283:355-359(1992) [PubMed: 1315513] [Abstract]
Cited for: PARTIAL NUCLEOTIDE SEQUENCE [GENOMIC DNA] (ISOFORMS W; X; Y; Z AND A).
[3]"Alternative splicing of exons encoding the calmodulin-binding domains and C termini of plasma membrane Ca(2+)-ATPase isoforms 1, 2, 3, and 4."
Keeton T.P., Burk S.E., Shull G.E.
J. Biol. Chem. 268:2740-2748(1993) [PubMed: 8428948] [Abstract]
Cited for: PARTIAL NUCLEOTIDE SEQUENCE, ALTERNATIVE SPLICING (ISOFORMS A-C).
Strain: Sprague-Dawley.
+Additional computationally mapped references.

Cross-references

Sequence databases

J03754 mRNA. Translation: AAA74219.1.
L05557 expand/collapse EMBL AC list , L05539, L05545, L05556 Genomic DNA. Translation: AAB60703.1.
IPIIPI00194875.
IPI00231309.
IPI00231310.
IPI00231311.
IPI00231312.
IPI00231313.
IPI00231314.
IPI00231315.
IPI00231316.
IPI00339139.
IPI00339140.
IPI00339141.
PIRB28065.
RefSeqNP_036640.1.
UniGeneRn.90982

3D structure databases

HSSPHSSP built from PDB template 1EUL based on UniProtKB P04191.
ModBaseSearch...

Protein-protein interaction databases

IntActP11506. 1 interaction.
STRINGP11506.

PTM databases

PhosphoSiteP11506.

Genome annotation databases

GeneID24215.
KEGGrno:24215.
UCSCNM_012508. rat.

Organism-specific databases

CTD24215.
RGD2176. Atp2b2.

Phylogenomic databases

HOVERGENP11506.

Enzyme and pathway databases

BRENDA3.6.3.8. 248.

Gene expression databases

GenevestigatorP11506.

Family and domain databases

InterProIPR008250. ATPase_P-typ_ATPase-assoc-reg.
IPR006408. ATPase_P-typ_Ca-transp_PMCA.
IPR006069. ATPase_P-typ_cation-exchng_asu.
IPR006068. ATPase_P-typ_cation-transptr_C.
IPR004014. ATPase_P-typ_cation-transptr_N.
IPR001757. ATPase_P-typ_ion-transptr.
IPR018303. ATPase_P-typ_P_site.
IPR005834. Dehalogen-like_hydro.
[Graphical view]
PANTHERPTHR11939. ATPase_P. 1 hit.
PfamPF00689. Cation_ATPase_C. 1 hit.
PF00690. Cation_ATPase_N. 1 hit.
PF00122. E1-E2_ATPase. 1 hit.
PF00702. Hydrolase. 1 hit.
[Graphical view]
PRINTSPR00119. CATATPASE.
PR00121. NAKATPASE.
TIGRFAMsTIGR01517. ATPase-IIB_Ca. 1 hit.
TIGR01494. ATPase_P-type. 4 hits.
PROSITEPS00154. ATPASE_E1_E2. 1 hit.
[Graphical view]
ProtoNetSearch...

Other Resources

NextBio602633.
PMAP-CutDBP11506.

Entry information

Entry nameAT2B2_RAT
AccessionPrimary (citable) accession number: P11506
Secondary accession number(s): Q63443
Entry history
Integrated into UniProtKB/Swiss-Prot: October 1, 1989
Last sequence update: June 1, 2001
Last modified: October 13, 2009
This is version 101 of the entry and version 2 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation projectHPI (Human Proteome Initiative)

Relevant documents

SIMILARITY comments

Index of protein domains and families

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