Protein : SPAG8

Name SPAG8
Description sperm associated antigen 8
Owner Public
URN urn:agi-llid:26206
Connectivity 3
Notes The correlation of anti-sperm antibodies with cases of unexplained infertility implicates a role for these antibodies in blocking fertilization. Improved diagnosis and treatment of immunologic infertility, as well as identification of proteins for targeted contraception, are dependent on the identification and characterization of relevant sperm antigens. The protein encoded by this gene is recognized by sperm agglutinating antibodies from an infertile woman. This protein is localized in germ cells of the testis at all stages of spermatogenesis and is localized to the acrosomal region of mature spermatozoa. Alternatively spliced variants that encode different protein isoforms have been described but the full-length sequences of only two have been determined. The correlation of anti-sperm antibodies with cases of unexplained infertility implicates a role for these antibodies in blocking fertilization. Improved diagnosis and treatment of immunologic infertility, as well as identification of proteins for targeted contraception, are dependent on the identification and characterization of relevant sperm antigens. The protein encoded by this gene is recognized by sperm agglutinating antibodies from an infertile woman. This protein is localized in germ cells of the testis at all stages of spermatogenesis and is localized to the acrosomal region of mature spermatozoa. Alternatively spliced variants that encode different protein isoforms have been described but the full-length sequences of only two have been determined.

Microarray ID 37660_at
206816_s_at
206815_at
U12978_at
214066_x_at
A_23_P216490
A_24_P412036
A_23_P74129
A_24_P113824
OH5501
OH6730

GenBank ID AAA21129
AAB46833
AAH19247
AI028727
AL133410
BC019247
CAI10989
CAI10990
NC_000009
NM_012436
NM_172312
NP_036568
NP_758516
NT_008413
NT_086749
Q99932
S83157
U12978
AAV31155
AK132968
AY769082
BAE21448
NC_000070
NM_001007463
NP_001007464
NT_109315

Chromosome position 9p13.3
4 B1

GO ID 0000004
0001669
0005554

Alias BS-84
hSMP I
sperm associated antigen 8 isoform I
sperm membrane protein I
sperm membrane protein 1
MGC26201
SMP-1
SPAG8
sperm associated antigen 8
sperm associated antigen 8 isoform 1
SPAG3
hSMP-1
sperm associated antigen VIII
HSD-I
HSDI
HSD 1
HSD1
HSD-1
HSD(I)
HSD I
HSD(1)

Organism Mus musculus
Homo sapiens

LocusLink ID 26206
433700

FunctionalClass molecular function unknown

GO Cellular Component acrosome

Cell Localization Plasma membrane
Cytoplasm

Pathway PPAR all
PPARgamma

GO Biological Process biological process unknown

Source Curated