CAP (cysteine-rich secretory proteins, antigen 5, and pathogenesis-related 1 proteins) domain family; The CAP (cysteine-rich secretory proteins, antigen 5, and pathogenesis-related 1 proteins) domain, also called SCP (sperm-coating glycoprotein), is found in eukaryotes and prokaryotes. This family includes plant pathogenesis-related protein 1 (PR-1), which accumulates after infections with pathogens, and may act as an anti-fungal agent or be involved in cell wall loosening. This family also includes CRISPs (cysteine-rich secretory proteins), which combine the CAP/SCP domain with a C-terminal cysteine rich domain, and allergen 5 from vespid venom. Roles for CRISP, in response to pathogens, fertilization, and sperm maturation have been proposed. One member, Tex31 from the venom duct of Conus textile, has been shown to possess proteolytic activity sensitive to serine protease inhibitors. The human GAPR-1 protein has been reported to dimerize, and such a dimer may form an active site containing a catalytic triad. CAP/SCP has also been proposed to be a Ca++ chelating serine protease. The Ca++-chelating function would fit with various signaling processes that members of this family, such as the CRISPs, are involved in, and is supported by sequence and structural evidence of a conserved pocket containing two histidines and a glutamate. It also may explain how helothermine, a toxic peptide secreted by the beaded lizard, blocks Ca++ transporting ryanodine receptors. Little is known about the biological roles of the bacterial and archaeal CAP/SCP domains.

                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 2462606299   1 MHMTSYPVSWSSVIGVWYSESTSFKHGEWTTTDDDITTdHYTQIVWATSYLIGCAIASCRQQGSPRYLYVCHYCH 75
Cdd:cd05383    65 IFMSSYPASWSEVIQAWYDEYKDFKYGVGAKPPGSVTG-HYTQVVWYSSYLVGCAVAYCPSQGSLKYFYVCQYCP 138

CAP (cysteine-rich secretory proteins, antigen 5, and pathogenesis-related 1 proteins) domain of cysteine-rich secretory proteins; Cysteine-rich secretory proteins (CRISPs) are two-domain proteins with an evolutionary diverse and structurally conserved N-terminal CAP domain and a C-terminal cysteine-rich domain, which is comprised of a hinge and an ICR (ion channel regulator) region. CRISPs are involved in response to pathogens, fertilization, and sperm maturation. One member, Tex31 from the venom duct of Conus textile, has been shown to possess proteolytic activity sensitive to serine protease inhibitors. CRISP-1 has been shown to mediate gamete fusion by binding to the egg surface. Other members of the CRISP family secreted in the testis (CRISP2), epididymis (CRISP3-4), or during ejaculation (CRISP3), are also involved in sperm-egg interaction, supporting the existence of a functional redundancy and cooperation between homolog proteins ensuring the success of fertilization. The wider family of CAP domain containing proteins includes plant pathogenesis-related protein 1 (PR-1) and allergen 5 from vespid venom, among others.

                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 2462606299   1 MHMTSYPVSWSSVIGVWYSESTSFKHGEWTTTDDDITTdHYTQIVWATSYLIGCAIASCRQQGSPRYLYVCHYCH 75
Cdd:cd05383    65 IFMSSYPASWSEVIQAWYDEYKDFKYGVGAKPPGSVTG-HYTQVVWYSSYLVGCAVAYCPSQGSLKYFYVCQYCP 138

SCP / Tpx-1 / Ag5 / PR-1 / Sc7 family of extracellular domains; Human glioma pathogenesis-related protein GliPR and the plant pathogenesis-related protein represent functional links between plant defense systems and human immune system. This family has no known function.

                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|.
gi 2462606299    5 SYPVSWSSVIGVWYSESTSFKHGEWTTTDDDITTDHYTQIVWATSYLIGCAIASCRQQGSPRYLYVCHYCH 75
Cdd:smart00198  74 LPDTYASAAVQLWYDEFQDYGYSSNTCKDTNGKIGHYTQVVWAKTYKVGCGVANCPDGTKKKTVVVCNYDP 144

CAP (cysteine-rich secretory proteins, antigen 5, and pathogenesis-related 1 proteins) domain of cysteine-rich secretory proteins; Cysteine-rich secretory proteins (CRISPs) are two-domain proteins with an evolutionary diverse and structurally conserved N-terminal CAP domain and a C-terminal cysteine-rich domain, which is comprised of a hinge and an ICR (ion channel regulator) region. CRISPs are involved in response to pathogens, fertilization, and sperm maturation. One member, Tex31 from the venom duct of Conus textile, has been shown to possess proteolytic activity sensitive to serine protease inhibitors. CRISP-1 has been shown to mediate gamete fusion by binding to the egg surface. Other members of the CRISP family secreted in the testis (CRISP2), epididymis (CRISP3-4), or during ejaculation (CRISP3), are also involved in sperm-egg interaction, supporting the existence of a functional redundancy and cooperation between homolog proteins ensuring the success of fertilization. The wider family of CAP domain containing proteins includes plant pathogenesis-related protein 1 (PR-1) and allergen 5 from vespid venom, among others.

                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 2462606299   1 MHMTSYPVSWSSVIGVWYSESTSFKHGEWTTTDDDITTdHYTQIVWATSYLIGCAIASCRQQGSPRYLYVCHYCH 75
Cdd:cd05383    65 IFMSSYPASWSEVIQAWYDEYKDFKYGVGAKPPGSVTG-HYTQVVWYSSYLVGCAVAYCPSQGSLKYFYVCQYCP 138

SCP / Tpx-1 / Ag5 / PR-1 / Sc7 family of extracellular domains; Human glioma pathogenesis-related protein GliPR and the plant pathogenesis-related protein represent functional links between plant defense systems and human immune system. This family has no known function.

                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|.
gi 2462606299    5 SYPVSWSSVIGVWYSESTSFKHGEWTTTDDDITTDHYTQIVWATSYLIGCAIASCRQQGSPRYLYVCHYCH 75
Cdd:smart00198  74 LPDTYASAAVQLWYDEFQDYGYSSNTCKDTNGKIGHYTQVVWAKTYKVGCGVANCPDGTKKKTVVVCNYDP 144

CAP (cysteine-rich secretory proteins, antigen 5, and pathogenesis-related 1 proteins) domain family; The CAP (cysteine-rich secretory proteins, antigen 5, and pathogenesis-related 1 proteins) domain, also called SCP (sperm-coating glycoprotein), is found in eukaryotes and prokaryotes. This family includes plant pathogenesis-related protein 1 (PR-1), which accumulates after infections with pathogens, and may act as an anti-fungal agent or be involved in cell wall loosening. This family also includes CRISPs (cysteine-rich secretory proteins), which combine the CAP/SCP domain with a C-terminal cysteine rich domain, and allergen 5 from vespid venom. Roles for CRISP, in response to pathogens, fertilization, and sperm maturation have been proposed. One member, Tex31 from the venom duct of Conus textile, has been shown to possess proteolytic activity sensitive to serine protease inhibitors. The human GAPR-1 protein has been reported to dimerize, and such a dimer may form an active site containing a catalytic triad. CAP/SCP has also been proposed to be a Ca++ chelating serine protease. The Ca++-chelating function would fit with various signaling processes that members of this family, such as the CRISPs, are involved in, and is supported by sequence and structural evidence of a conserved pocket containing two histidines and a glutamate. It also may explain how helothermine, a toxic peptide secreted by the beaded lizard, blocks Ca++ transporting ryanodine receptors. Little is known about the biological roles of the bacterial and archaeal CAP/SCP domains.

                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 2462606299   3 MTSYPVSWSSVIGVWYSESTSFKHGEwTTTDDDITTDHYTQIVWATSYLIGCAIASCRqqgSPRYLYVCHYC 74
Cdd:cd00168    61 ASSYDMDGVAALQAWHNEIKNYNFGT-AQPGFNSGTGHYTQMVWEKTTKLGCGVADCS---DNSKFVVCNYI 128

Cysteine-rich secretory protein family; This is a large family of cysteine-rich secretory proteins, antigen 5, and pathogenesis-related 1 proteins (CAP) that are found in a wide range of organizms, including prokaryotes and non-vertebrate eukaryotes, The nine subfamilies of the mammalian CAP 'super'family include: the human glioma pathogenesis-related 1 (GLIPR1), Golgi associated pathogenesis related-1 (GAPR1) proteins, peptidase inhibitor 15 (PI15), peptidase inhibitor 16 (PI16), cysteine-rich secretory proteins (CRISPs), CRISP LCCL domain containing 1 (CRISPLD1), CRISP LCCL domain containing 2 (CRISPLD2), mannose receptor like and the R3H domain containing like proteins. Members are most often secreted and have an extracellular endocrine or paracrine function and are involved in processes including the regulation of extracellular matrix and branching morphogenesis, potentially as either proteases or protease inhibitors; in ion channel regulation in fertility; as tumour suppressor or pro-oncogenic genes in tissues including the prostate; and in cell-cell adhesion during fertilization. The overall protein structural conservation within the CAP 'super'family results in fundamentally similar functions for the CAP domain in all members, yet the diversity outside of this core region dramatically alters the target specificity and, thus, the biological consequences. The Ca++-chelating function would fit with the various signalling processes (e.g. the CRISP proteins) that members of this family are involved in, and also the sequence and structural evidence of a conserved pocket containing two histidines and a glutamate. It also may explain how Swiss:Q91055 blocks the Ca++ transporting ryanodine receptors.

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 2462606299   6 YPVSWSSVIGVWYSESTSFKHGewtttdddittdHYTQIVWATSYLIGCAIASCRQQGSprYLYVCHY 73
Cdd:pfam00188  64 GPDSAEDAVDGWYDSPGTYNCG------------HRTNLLWPKSTKVGCAVAKCGDGGT--YYFVCNY 117

CAP (cysteine-rich secretory proteins, antigen 5, and pathogenesis-related 1 proteins) domain of peptidase inhibitor 15 and similar proteins; This family is composed of peptidase inhibitor 15 (PI15), peptidase inhibitor R3HDML, cysteine-rich secretory protein LCCL domain-containing 1 (CRISPLD1), and cysteine-rich secretory protein LCCL domain-containing 2 (CRISPLD2). PI15 is a serine protease inhibitor which displays weak inhibitory activity against trypsin and may play a role in facial patterning during embryonic development. The PI15 gene is a candidate gene for abdominal aortic internal elastic lamina ruptures in the rat. R3HDML is a putative serine protease inhibitor, whose gene may be associated with clinical dimensions of schizophrenia. CRISPLD1 may play a role in NSCLP (nonsyndromic cleft lip with or without cleft palate) through the interaction with CRISPLD2 and folate pathway genes. plays a role in the etiology of NSCLP and is required for neural crest cell migration and cell viability during craniofacial development. The wider family of CAP domain containing proteins includes plant pathogenesis-related protein 1 (PR-1), cysteine-rich secretory proteins (CRISPs), and allergen 5 from vespid venom, among others.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|
gi 2462606299  40 HYTQIVWATSYLIGCAIASCRQ-----QGSPRYLY-VCHY 73
Cdd:cd18812   106 HYTQMVWATSNRIGCAIHTCSNmnvwgNVWHRAVYlVCNY 145

CAP (cysteine-rich secretory proteins, antigen 5, and pathogenesis-related 1 proteins) domain of cysteine-rich secretory protein LCCL domain-containing 1; Cysteine-rich secretory protein LCCL domain-containing 1 (CRISPLD1) is also called cysteine-rich secretory protein 10 (CRISP-10), CocoaCrisp, LCCL domain-containing cysteine-rich secretory protein 1 (LCRISP1), or CAP and LCCL domain containing protein 1 (CAPLD1). CRISPLD1 is clearly distinct from CRISPs because they do not contain the 10 absolutely conserved cysteines or the ICR (ion channel regulator) domain of the CRISPs. It may play a role in NSCLP (nonsyndromic cleft lip with or without cleft palate) through the interaction with CRISPLD2 and folate pathway genes. The wider family of CAP domain containing proteins includes plant pathogenesis-related protein 1 (PR-1), cysteine-rich secretory proteins (CRISPs), and allergen 5 from vespid venom, among others.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|
gi 2462606299  40 HYTQIVWATSYLIGCAIASCRQ-----QGSPRYLY-VCHY 73
Cdd:cd18813   106 HYTQVVWATSNRIGCAINLCHNmnvwgQIWPKAIYlVCNY 145

CAP (cysteine-rich secretory proteins, antigen 5, and pathogenesis-related 1 proteins) domain of cysteine-rich secretory protein LCCL domain-containing 2; Cysteine-rich secretory protein LCCL domain-containing 2 (CRISPLD2) is also called cysteine-rich secretory protein 11 (CRSIP-11), LCCL domain-containing cysteine-rich secretory protein 2 (LCRISP2), or CAP and LCCL domain containing protein 2 (CAPLD2). It plays a role in the etiology of NSCLP (non-syndromic cleft lip with or without cleft palate). It is required for neural crest cell migration and cell viability during craniofacial development. The CRISPLD2 gene has been identified a glucocorticoid responsive gene that modulates cytokine function in airway smooth muscle cells. The wider family of CAP domain containing proteins includes plant pathogenesis-related protein 1 (PR-1), cysteine-rich secretory proteins (CRISPs), and allergen 5 from vespid venom, among others.

                          10        20
                  ....*....|....*....|..
gi 2462606299  40 HYTQIVWATSYLIGCAIASCRQ 61
Cdd:cd18816   106 HYTQIVWATTNKVGCAVNVCRR 127

CAP (cysteine-rich secretory proteins, antigen 5, and pathogenesis-related 1 proteins) domain of peptidase inhibitor R3HDML; Peptidase inhibitor R3HDML, also called cysteine-rich secretory protein R3HDML, is a putative serine protease inhibitor. The R3HDML gene may be associated with clinical dimensions of schizophrenia. The wider family of CAP domain containing proteins includes plant pathogenesis-related protein 1 (PR-1), cysteine-rich secretory proteins (CRISPs), and allergen 5 from vespid venom, among others.

                          10        20
                  ....*....|....*....|
gi 2462606299  40 HYTQIVWATSYLIGCAIASC 59
Cdd:cd18815   106 HYTQMVWASSNRIGCAVHTC 125