Guide to the Human Genome
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Name: SPTB Sequence: fasta or formatted (2137aa) NCBI GI: 67782319
Description:

spectrin beta isoform b

Referenced in:

Hematopoiesis and Erythrocytes
Spectrin and Plectin Families

Other entries for this name:
alt prot [2328aa] spectrin beta isoform a
Composition:

amino acid map
 Amino acid        Percentage    Count  Longest homopolymer
 A alanine             8.6        184           3
 C cysteine            0.7         15           1
 D aspartate           7.0        149           2
 E glutamate          10.9        234           3
 F phenylalanine       3.1         66           2
 G glycine             4.5         97           2
 H histidine           3.0         65           2
 I isoleucine          4.2         89           2
 K lysine              6.2        133           3
 L leucine            11.9        255           3
 M methionine          2.0         42           1
 N asparagine          3.0         65           2
 P proline             2.2         47           2
 Q glutamine           7.6        163           3
 R arginine            6.7        143           2
 S serine              5.6        119           3
 T threonine           4.0         86           2
 V valine              4.8        103           2
 W tryptophan          2.0         42           1
 Y tyrosine            1.9         40           2
Comparative genomics:

Search single species RefSeq proteins at NCBI
   H. sapiens
   M. musculus
   D. rerio
   C. intestinalis
   S. purpuratus
   D. melanogaster
   C. elegans
   A. thaliana
   S. cerevisiae
   E. coli W3110
   A. pernix K1

Search summary

comparative genomics plot

   Figure data

Additional searches of
RefSeq proteins at NCBI

   All
   Eukaryotes
   Bacteria
   Archaea
   Viruses
   Primates
   Mammals
   Vertebrates

Related human proteins:
Protein          Relative score         Description

Self-match            1.000   spectrin beta isoform b 
SPTB                  0.989   spectrin beta isoform a 
SPTBN1                0.622   spectrin, beta, non-erythrocytic 1 isoform 1 
SPTBN1                0.610   spectrin, beta, non-erythrocytic 1 isoform 2 
SPTBN2                0.541   spectrin, beta, non-erythrocytic 2 
SPTBN4                0.461   spectrin, beta, non-erythrocytic 4 isoform sigma1 [...
SPTBN5                0.200   spectrin, beta, non-erythrocytic 5 
SPTBN4                0.131   spectrin, beta, non-erythrocytic 4 isoform sigma5 [...
SPTAN1                0.130   spectrin, alpha, non-erythrocytic 1 (alpha-fodrin) ...
SPTAN1                0.129   spectrin, alpha, non-erythrocytic 1 (alpha-fodrin) ...
SPTA1                 0.116   spectrin, alpha, erythrocytic 1 
ACTN4                 0.098   actinin, alpha 4 
ACTN1                 0.096   actinin, alpha 1 isoform c 
ACTN1                 0.096   actinin, alpha 1 isoform a 
ACTN1                 0.096   actinin, alpha 1 isoform b 
ACTN2                 0.093   actinin, alpha 2 
ACTN3                 0.091   actinin, alpha 3 
PLEC1                 0.083   plectin 1 isoform 3 
PLEC1                 0.083   plectin 1 isoform 1 
PLEC1                 0.083   plectin 1 isoform 7 
PLEC1                 0.083   plectin 1 isoform 2 
PLEC1                 0.082   plectin 1 isoform 11 
PLEC1                 0.082   plectin 1 isoform 10 
PLEC1                 0.082   plectin 1 isoform 8 
PLEC1                 0.082   plectin 1 isoform 6 
LOC652460             0.074   PREDICTED: similar to plectin 1, partial 
MACF1                 0.065   microfilament and actin filament cross-linker protei...
DST                   0.065   dystonin isoform 4 
DST                   0.065   dystonin isoform 3 
DST                   0.065   dystonin isoform 2 
Human BLASTP results (used to prepare the table)

Gene descriptions are from NCBI RefSeq. Search results were obtained with NCBI BLAST and RefSeq entries. When identical proteins are present, the self-match may not be listed first in BLASTP output. In such cases, the table above has been reordered to place it first.

See About the Figures for the scoring system used in the figure above right. The same scoring system was used in the table of BLASTP results.


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Guide to the Human Genome
Copyright © 2010 by Stewart Scherer. All rights reserved.

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