Berkeley Structural Genomics Center

Target info for 1262B

This target is MP553 / MPN282, gi number 1674251 from Mycoplasma pneumoniae.

This gene has the annotation "MG260 homolog, from M. genitalium".

The target was selected as part of JMC's second set.

Available sections:


Experimental status of 1262B

Note: Dates prior to 10/24/01 may be inaccurate, due to conversion from a record-keeping system which tracked only the last experimental date, to a new system which keeps track of all dates. The user is the person who entered the data, not the person who did the experiment. This will also change in the future.

ExperimentResultUserExperiment Date
SelectedDonejmc2002-02-25
ClonedDoner_kim2003-05-12
Expression testedDoner_kim2003-05-12
Solubility testedSr_kim2003-05-12
PurifiedDoner_kim2003-09-12

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Potential MP Homologues of 1262B

MP genelog10(PSIBLAST E)% identical% coverage (of MP gene)
MP002 / MPN152-55.1054.2798.80
MP007 / MPN147-54.5250.3099.40
MP056 / MPN098-9.0078.5716.87
MP057 / MPN097-4.7050.0015.66
MP336 / MPN506-55.7055.7699.40
MP430 / MPN408-53.5246.6799.40
MP472 / MPN364-54.1056.02100.00
MP547 / MPN288-55.7056.9799.40
MP551 / MPN284-55.5255.4998.80
MP553 / MPN282-56.30100.00100.00
MP631 / MPN200-53.7055.1599.40
MP632 / MPN199-34.5231.5299.40

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1262B DNA sequence

ATGAAGACTATTTACATTTACAAAGGCTCTATTCCTGAAGATAAAAAGAAAGGTGATAATGCCATTTGAGTTACTGAGAA
AAAAATTATTGATGCTTTAGAAAAAGCTGCTAATTCTAATGGTGAAAGTACACAATCTAATCCAAAAACCATAGCACTTC
AAGCAGCTAAAAAAGAAACTAAAAAGAGCAATAAGAAAGAATCAAAAACGATTGGATATACAACTACTGGTTATGTCAAT
GCTGATGGTAAACATATTTTTGATACAGACAGAATTAACAATGAGAGGTTTGATCGTAAAATTATTATTGGTGCTACTCT
AGAAACTTTAGACCAATCTAGTACACTCCAAAGTGGTGAAGCAATTGTCTTACCAGCACCTGGTAAATATAAGAGTAGTG
ATCAAAAAACGGTTATGACAGCGCAAGGCCCCAAGATAATCGGGATCCATGCTAATGCTAAAGAGAACGAAGAAACACAA
AAATTTGTTAATTGGTTTTAA

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1262B Codon Usage

(167 codons)
fields: [triplet] [frequency: per thousand] ([number])

UUU24.0(   4)  UCU24.0(   4)  UAU18.0(   3)  UGU0.0(   0)  
UUC0.0(   0)  UCC0.0(   0)  UAC12.0(   2)  UGC0.0(   0)  
UUA18.0(   3)  UCA6.0(   1)  UAA6.0(   1)  UGA6.0(   1)  
UUG0.0(   0)  UCG0.0(   0)  UAG0.0(   0)  UGG6.0(   1)  

CUU6.0(   1)  CCU12.0(   2)  CAU12.0(   2)  CGU6.0(   1)  
CUC6.0(   1)  CCC6.0(   1)  CAC0.0(   0)  CGC0.0(   0)  
CUA6.0(   1)  CCA12.0(   2)  CAA41.9(   7)  CGA0.0(   0)  
CUG0.0(   0)  CCG0.0(   0)  CAG0.0(   0)  CGG0.0(   0)  

AUU77.8(  13)  ACU41.9(   7)  AAU53.9(   9)  AGU29.9(   5)  
AUC12.0(   2)  ACC6.0(   1)  AAC12.0(   2)  AGC6.0(   1)  
AUA12.0(   2)  ACA35.9(   6)  AAA107.8(  18)  AGA6.0(   1)  
AUG12.0(   2)  ACG12.0(   2)  AAG35.9(   6)  AGG6.0(   1)  

GUU18.0(   3)  GCU47.9(   8)  GAU41.9(   7)  GGU41.9(   7)  
GUC12.0(   2)  GCC6.0(   1)  GAC12.0(   2)  GGC12.0(   2)  
GUA0.0(   0)  GCA24.0(   4)  GAA53.9(   9)  GGA6.0(   1)  
GUG0.0(   0)  GCG6.0(   1)  GAG18.0(   3)  GGG6.0(   1)  

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1262B Potential Cloning Problems

UGA codons: 1 internal and 0 terminal.
2 restriction site(s) found.

Details (problem DNA region is in upper case, with the key on the line below):

Key:

atgaagactatttacatttacaaaggctctattcctgaagataaaaagaaaggtgataat
                                                            
gccattTGAgttactgagaaaaaaattattgatgctttagaaaaagctgctaattctaat
      U                                                     
ggtgaaagtacacaatctaatccaaaaaccatagcacttcaagcagctaaaaaagaaact
                                                            
aaaaagagcaataagaaagaatcaaaaacgattggatatacaactactggttatgtcaat
                                                            
gctgatggtaaacatatttttgatacagacagaattaacaatgagaggtttgatcgtaaa
                                                            
attattattggtgctactctagaaactttagaccaatctagtacactccaaagtggtgaa
                                                            
gcaattgtcttaccagcacctggtaaatataagagtagTGATCAaaaaacggttatgaca
                                      3                     
gcgcaaggccccaagataatcgGGATCCatgctaatgctaaagagaacgaagaaacacaa
                      2                                     
aaatttgttaattggttttaa
                     

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1262B Automatically Selected Primers

Note: These were generated using Hisao's algorithm, and do not take into account possible mispriming, self-complementarity, or requirements for mutations anywhere in the sequences. The -R1 primers are for the N-terminal end, and begin with an NdeI restriction site (CATATG). The -R2 primers are for the C-terminal end, and begin with a BamHI site (GGATCC) if the target has no other BamHI sites. If the target does have a BamHI site, the -R2 primer wil begin with a BglII site (AGATCT), unless the target has no BglII sites. If the target has both sites, the design program gives up and doesn't prepend a restriction site to the -R2 primer!

Predicted Tm was obtained using the Tm determination tool at the Virtual Genome Center.

Primer IDPredicted Tmsequence
1262B-R160.40CATATGAAGACTATTTACATTTACAAAGGCTCT
1262B-R260.40AGATCTTTAAAACCAATTAACAAATTTTTGTGTTT
1262B-R1064.70GGCGGTGGTGGCGGCATGAAGACTATTTACATTTACAAAGGCTCTATTCC
1262B-R1163.40GTTCTTCTCCTTTGCGCCCCTAAAACCAATTAACAAATTTTTGTGTTTCTTC
1262B-R1468.40TGATAATGCCATTTGGGTTACTGAGAAAAAA
1262B-R1568.40TTTTTTCTCAGTAACCCAAATGGCATTATCA

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1262B Translation

Note: This was generated using the standard codon usage table; UGA codons in MP/MP genes will show up as terminators ("*")

atgaagactatttacatttacaaaggctctattcctgaagataaaaagaaaggtgataat
 M  K  T  I  Y  I  Y  K  G  S  I  P  E  D  K  K  K  G  D  N 
gccatttgagttactgagaaaaaaattattgatgctttagaaaaagctgctaattctaat
 A  I  *  V  T  E  K  K  I  I  D  A  L  E  K  A  A  N  S  N 
ggtgaaagtacacaatctaatccaaaaaccatagcacttcaagcagctaaaaaagaaact
 G  E  S  T  Q  S  N  P  K  T  I  A  L  Q  A  A  K  K  E  T 
aaaaagagcaataagaaagaatcaaaaacgattggatatacaactactggttatgtcaat
 K  K  S  N  K  K  E  S  K  T  I  G  Y  T  T  T  G  Y  V  N 
gctgatggtaaacatatttttgatacagacagaattaacaatgagaggtttgatcgtaaa
 A  D  G  K  H  I  F  D  T  D  R  I  N  N  E  R  F  D  R  K 
attattattggtgctactctagaaactttagaccaatctagtacactccaaagtggtgaa
 I  I  I  G  A  T  L  E  T  L  D  Q  S  S  T  L  Q  S  G  E 
gcaattgtcttaccagcacctggtaaatataagagtagtgatcaaaaaacggttatgaca
 A  I  V  L  P  A  P  G  K  Y  K  S  S  D  Q  K  T  V  M  T 
gcgcaaggccccaagataatcgggatccatgctaatgctaaagagaacgaagaaacacaa
 A  Q  G  P  K  I  I  G  I  H  A  N  A  K  E  N  E  E  T  Q 
aaatttgttaattggttttaa
 K  F  V  N  W  F  * 

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1262B AA Sequence

MKTIYIYKGSIPEDKKKGDNAIWVTEKKIIDALEKAANSNGESTQSNPKTIALQAAKKETKKSNKKESKTIGYTTTGYVN
ADGKHIFDTDRINNERFDRKIIIGATLETLDQSSTLQSGEAIVLPAPGKYKSSDQKTVMTAQGPKIIGIHANAKENEETQ
KFVNWF

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1262B Protein Parameters

This information was obtained using the Protein Parameters tool on the ExPASy Molecular Biology Server.

Number of amino acids: 166

Molecular weight: 18395.8

Theoretical pI: 9.32

Amino acid composition:

Ala (A)  14	  8.4%
Arg (R)   3	  1.8%
Asn (N)  11	  6.6%
Asp (D)   9	  5.4%
Cys (C)   0	  0.0%
Gln (Q)   7	  4.2%
Glu (E)  12	  7.2%
Gly (G)  11	  6.6%
His (H)   2	  1.2%
Ile (I)  17	 10.2%
Leu (L)   6	  3.6%
Lys (K)  24	 14.5%
Met (M)   2	  1.2%
Phe (F)   4	  2.4%
Pro (P)   5	  3.0%
Ser (S)  11	  6.6%
Thr (T)  16	  9.6%
Trp (W)   2	  1.2%
Tyr (Y)   5	  3.0%
Val (V)   5	  3.0%

Asx (B)   0	  0.0%
Glx (Z)   0	  0.0%
Xaa (X)   0	  0.0%

Total number of negatively charged residues (Asp + Glu): 21
Total number of positively charged residues (Arg + Lys): 27

Atomic composition:

Carbon      C	       811
Hydrogen    H	      1313
Nitrogen    N	       223
Oxygen      O	       259
Sulfur      S	         2

Formula: C811H1313N223O259S2
Total number of atoms: 2608

Extinction coefficients:

Conditions: 6.0 M guanidium hydrochloride
            0.02 M phosphate buffer
            pH 6.5

Extinction coefficients are in units of  M-1 cm-1 .

                      276     278     279     280     282
                       nm      nm      nm      nm      nm
Ext. coefficient    18050   18200   18045   17780   17200
Abs 0.1% (=1 g/l)   0.981   0.989   0.981   0.967   0.935


Estimated half-life:

The N-terminal of the sequence considered is M (Met).

The estimated half-life is: 30 hours (mammalian reticulocytes, in vitro).
                            >20 hours (yeast, in vivo).
                            >10 hours (Escherichia coli, in vivo).


Instability index:

The instability index (II) is computed to be 26.68
This classifies the protein as stable.



Aliphatic index: 71.20

Grand average of hydropathicity (GRAVY): -0.784

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